A state of two water profiles: soft Catskill/Delaware surface water serving New York City and the lower Hudson, and hard groundwater serving Long Island and most of the rural upstate.
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The lobby of the Empire State Building is forty-eight thousand square feet of marble, gold leaf, and a particular grade of polished glass that the original architects specified in 1931 and that the building's current owners have, by careful preservation work over nine decades, mostly retained. I clean it on Sunday mornings, before the tourists arrive, and I have been doing so for nine years. The contract is held by a janitorial firm I have worked for since 2017, but the lobby is mine by long-running informal arrangement, and the company has stopped asking whether someone else might do it instead.
The work begins at five in the morning. The glass I work on is not the soaring exterior curtain wall — that is a separate contract and a different trade altogether, involving suspended platforms and a small crew of rope-access workers whom I know by name but do not work alongside. The work I do is the interior lobby glass: the vestibule, the elevator bank surrounds, the doors at the Fifth Avenue and Thirty-Third Street entries, and the historic restored aluminum-and-glass signage that the preservation architects spent three years sourcing parts to repair in 2009.
I start with the same four motions I have started every wash with for twenty-two years. I trained in Copenhagen, in the early two-thousands, at a commercial firm that taught the trade as a six-month progression — bucket and strip washer for the first half, squeegee fundamentals for the second, edge work and special substrates only after the apprentice could prove they had the basics in their hands. The progression was old-fashioned even then. I am told the firm no longer trains this way. I have written elsewhere about the four-stage wash the apprenticeship produced in me, which is the foundation of everything I do, and I will not repeat it here. The point I want to make is different.
The point is that the lobby glass at the Empire State Building does not require special skill to clean. It requires the basics, applied carefully, on substrates that I have spent enough years working on that I can read them without thinking. The water I use to do it is some of the softest municipal water in any major North American city. The conditions are climate-controlled. The lighting is good. The job, in technical difficulty, is meaningfully easier than the brownstone double-hung wood-sash window I will clean for a customer in Park Slope at noon on the same day. The Park Slope window is harder because the glass is ninety-four years old, the sash has been painted shut and reopened three times in the last decade, and the surrounding masonry sheds a fine gray powder that nothing I have ever found removes from the glazing bead on the first pass.
I am writing this piece because the working conditions in New York State are more varied than any other state I have cleaned in, and because the published trade literature treats the state as a single market when it is, in fact, at least four. The soft-water city. The hard-water island east of the city. The mixed-water upstate, which is its own thing in Buffalo and another thing in Syracuse and a third thing in the rural counties. And the housing stock — which is the most diverse housing stock in the country and the consideration that, in my experience, separates the cleaner who has been working in this state for two years from the one who has been working here for fifteen.
There is a soft-water New York and there is a hard-water New York. The line is not a perfect geographic boundary but it is close enough to be useful: everything west of the East River and north into the lower Hudson Valley is on the Catskill and Delaware reservoir system, which delivers some of the softest municipal water in the country. Everything east of the East River, on Long Island, sits on a sole-source groundwater aquifer and runs hard.
New York City — all five boroughs — runs at approximately fifty milligrams per liter of total hardness as calcium carbonate. The Department of Environmental Protection draws nearly all of the city's supply from a network of reservoirs in the Catskill Mountains and the Delaware River basin, with a smaller contribution from the Croton system in northern Westchester. The water is delivered, remarkably, almost entirely by gravity — the aqueducts run downhill from the reservoirs to the city, and very little of the water needs to be pumped. The result is that NYC tap water is, by national standards, exceptionally soft.
The cleaning implication is straightforward: in NYC, water is not the dominant working problem. Tap-water rinses on the route are acceptable in a way they are not in Phoenix or Austin. I still mix solution with distilled water for my final-rinse work and for the high-end commercial accounts that expect it, but for general residential work, NYC tap is workable. The streaks and the films I encounter on city glass are not, in the main, mineral problems. They are particulate problems and they are housing-stock problems.
Long Island is a different state. Nassau and Suffolk counties draw their water from the underlying aquifer system — there is no surface-water supply on the island worth mentioning — and the groundwater runs in the one-hundred-eighty to two-hundred-sixty range, which is firmly hard-water territory. Iron is present in some service areas, particularly in older Suffolk County wells, and produces the orange tint on hard-water deposits that the standard citric protocol does not fully clear. Nitrate concentrations have, in some Long Island sub-aquifers, become a public-health concern. Both are cleaning-relevant: the iron requires an oxalic-acid pre-treatment before the citric pass, and the nitrate-flagged service areas tend to overlap with the sub-aquifers that produce the hardest deposits.
I do not work Long Island on a regular basis. I have a handful of accounts in Garden City and Manhasset that I service quarterly because they are old client relationships, and I drive out for them and remain perpetually surprised, every time, at how different the water feels under my hand. The film that forms on Long Island glass between cleanings is the kind of film I associate with Chicago or Phoenix. It is not the film I see on city glass.
The lower Hudson Valley — Westchester, Rockland, Putnam — runs on a mix of NYC-system water (the southern portions, served by the same Catskill/Croton infrastructure) and local surface and groundwater (the northern portions). Yonkers, Bronxville, and most of southern Westchester run soft. Peekskill, Beacon, and the smaller Hudson towns run moderately hard from local supplies. The pattern is patchwork and you should not assume.
The western and central tier — Buffalo, Rochester, Syracuse, and the rural counties between them — runs moderately hard on a mix of Great Lakes surface water (Buffalo from Erie, Rochester from Ontario, Syracuse from Skaneateles Lake), regional water authorities, and many private wells. None of these cities have the hardness extremes of Long Island, but none have the softness of NYC either. Plan accordingly.
Rural upstate, particularly the Adirondacks, the Catskills outside the watershed-protected areas, and the western farm counties, is well-water country. Hardness varies by underlying geology — from genuinely soft in the Adirondack granite zones to genuinely hard in the limestone-influenced areas of the Mohawk Valley and the western Finger Lakes. If you are picking up a customer in a rural county, ask about the well and ask about a softener before you quote the work. The same protocol that worked at the last customer two miles away may not work at this one.
The defining feature of New York State, from a cleaner's point of view, is the housing stock. The state holds more pre-1945 single-family and multi-family residential building stock than any other state in the country, and the bulk of it is concentrated in three places: the five boroughs of New York City, the inner-ring suburbs of Westchester and northern New Jersey, and the historic neighborhoods of the upstate cities. The pre-war glass on these buildings is the working consideration that, in my experience, most cleaners new to the state underestimate.
Pre-war glass is, in the technical sense, soda-lime glass produced by the cylinder or sheet-drawn methods before the float process was commercialized in the late nineteen-fifties. The optical quality is uneven. The thickness varies across a single pane. The surface, under raking light, often shows a faint subtle waviness that is the signature of the drawing process and that contemporary float glass does not have. The composition is similar to modern glass in its bulk chemistry but the surface is different in ways that matter for cleaning. The micro-roughness is higher. The susceptibility to acid etching is meaningfully higher. The interaction with modern surfactants is, in some cases, different from what the surfactant manufacturer assumed when they formulated the product.
A few rules I have arrived at over twenty-two years of working on pre-war glass, which I would offer to anyone new to it:
First, do not use ammonia on it without testing a corner. The wood sash and the painted putty surrounding pre-war glass are sensitive to ammonia in a way that contemporary aluminum-framed vinyl-glazed double-pane assemblies are not. Ammonia clouds the paint, lifts the putty over time, and reacts with the lead-based paint that is still present in some pre-1978 frames. The risk to the cleaner from disturbing lead paint is real. The risk to the customer's window from clouded sash paint is also real. The right move on pre-war is a neutral-pH or mildly alkaline surfactant solution — Mara Whitfield's House Standard at three drops of Dawn in distilled water is the recipe I default to.
Second, do not use a razor blade on pre-war glass without testing it. The fabricating debris that produces the scratches-on-clean-glass problem on tempered float glass is mostly absent from old cylinder glass, but the surface of pre-war glass has its own quirks — embedded mineral inclusions, occasional surface cracks that are too fine to see until a blade hits them, and in some cases a thin patina that the homeowner values and that a blade will strip in a single pass. I have stripped patina from a window in a Brooklyn Heights brownstone exactly once. The customer was, with great civility, never my customer again. I do not do it anymore.
Third, the lower edge of pre-war wood-sash glass — the edge where the glass sits in the glazing bead, supported by glazing putty — is where the work happens. The putty in pre-war sash is reaching the end of its design life across most of the state. It crumbles. It produces a fine chalky residue that mixes with rain and runs across the lower third of the glass as a thin chalky film that no amount of cleaning will fully remove because it is being replenished from the putty itself. The right move when you encounter this is to clean what you can, document the condition, and refer the homeowner to a glazier. The wrong move is to clean it harder. You will not win that fight and the homeowner will, reasonably, blame you when the chalky film returns within a week.
There is one more thing about pre-war glass that I want to mention because I do not think it is documented anywhere else. The glass on the bay-windowed parlor floors of the older Park Slope and Brooklyn Heights brownstones — the ones with the original 1880s-1890s window assemblies still in place — sometimes has a faint internal bubble visible from certain angles. This is not damage. It is air that was incorporated during the drawing process and that has remained in the glass for a hundred and thirty years. Do not panic if you see it. Do not point it out to the customer in a way that suggests damage. It is a feature of the substrate, and on the rare houses that still have the original assembly intact, it is something the homeowner is, in some cases, paying to preserve.
Drew Giordano wrote about one of these houses last year — a profile of a third-generation Brooklyn Heights cleaner whose grandmother started cleaning eight blocks of Pierrepont and Hicks in 1958. The piece is on the site. I recommend it. The notebook in Anthony Cassara's glove compartment is the kind of document the trade does not produce often enough.
The second working consideration of cleaning in New York State, after the pre-war glass, is what happens to ground-floor and lower-elevation glass during the four to five months of road-salt season.
From December through March, the New York State Department of Transportation, the various municipal road authorities, and the City of New York's Department of Sanitation collectively apply something in the range of seven hundred thousand to one million tons of road salt to the state's roads, highways, and city streets each winter. The exact figure varies by season. What does not vary is the mechanism: the salt is applied as a solid or a brine to the road surface, it is suspended into the air by passing vehicle traffic, and it deposits on every surface within roughly fifteen to twenty feet of the road for as long as the salt-treated surface remains in use. Ground-floor windows on a typical Brooklyn street accumulate a measurable salt film over the course of a single winter. The film cleans off easily. The salt that has worked its way into the aluminum sash hardware, the steel sash hardware on older buildings, and the brass strike plates on door glass does not.
The result is the slow corrosion of the metal hardware that holds pre-war glass in place. The sash hardware in a building that has not had a serious frame-and-hardware restoration since the nineteen-eighties shows the cumulative effect: pitted aluminum on the lower track of sliding sash, rust bloom on the steel pins of double-hung counterweight assemblies, and a fine corrosive film on the brass hardware of historic French-door glazing that no amount of polishing will fully restore.
The cleaning implication is that we, as the people whose hands are on the glass and the surrounding hardware every quarter, are often the first to see this damage develop. The right move when you see it is to mention it to the homeowner — kindly, without alarm, the way you would mention a small thing your physician would want to know. The wrong move is to attempt to clean the corroded hardware yourself with cleaning chemicals that will make the corrosion worse. I have made this mistake. Most cleaners I know have made this mistake. The right hardware-restoration work is the province of an architectural-metals specialist and not of the window cleaner, even the experienced one.
For ground-floor commercial accounts in NYC and on Long Island, the salt film is heavy enough during the winter that a separate cleaning cadence is appropriate. I service two restaurant clients in Greenpoint and one in Astoria on a two-week winter cadence rather than the four-week summer cadence, specifically because the salt film accumulates fast enough on the lower-half of the storefront glass to be visible from the street within ten days of a cleaning. The commercial cadence is a cost the client agrees to in advance, and the conversation about why the winter cadence is shorter is one I have, with each new client, every fall.
The seasonal cleaning calendar in New York is shaped by the salt cycle in winter, the pollen wave in spring, the cottonwood and plane-tree shed in early summer, the humidity through the summer, the leaf-litter and chimney-soot pickup of late autumn, and the pre-holiday cleaning rush that begins in mid-October and runs through the first week of December.
Late winter and early spring, from mid-March through April, is the post-salt cleanup. The first warm week of the year produces a tide of homeowner calls — they have looked at their windows for the first time in three months and decided, all on the same Saturday, that the windows need to be cleaned. This is the busiest two-week period of my year, and it is the period that the operators who plan well budget for and the operators who do not, regret. Mara Whitfield has written about why your windows look worse after you clean them in the context of seasonal transitions — the article applies particularly hard to the salt-to-no-salt seasonal shift.
Late April through May is the pollen wave. The London plane — the dominant New York City street tree, planted in the millions across the boroughs since the late nineteenth century — produces a fine reddish-brown pollen that coats glass during the two-week peak of its release. The pollen sticks. It does not respond to plain water; a surfactant pass is required. The yellow pollen of the oak and the birch follows in the upstate cities and the Hudson Valley, two to three weeks behind the city.
Late May and early June is the cottonwood shed. The eastern cottonwood produces fluffy white seeds that float on the air for two to three weeks and stick to anything wet. I have, in the past, watched a single cottonwood release produce a uniform white coat on the entire south face of a brownstone in Carroll Gardens in the space of an afternoon. The cottonwood fluff is annoying but the more cleaning-relevant problem is the sap residue that the cottonwood catkin sometimes deposits when it falls and decomposes in a window box or against a glazing bead. The sap residue requires a solvent pass — Jan's solvent ladder piece covers the right approach.
June, July, and August are the steady-state working season. Humidity is the working consideration. Dew points in the seventies are common across the lower half of the state for weeks at a time. The cleaning-relevant effect of high dew points is that east-facing glass sweats overnight, and the morning film you find on east-facing exposures is condensation that has redeposited the airborne particulate from the previous evening. The right move on hot humid mornings is to start east-facing work after the sun has dried the glass — typically around 9:30 in the city, later in the upstate cities where the morning sun is slower to clear.
September through November is the second peak. The pre-Thanksgiving and pre-holiday rush begins around the second week of October. By the first week of December, the bookings start to thin because the cold weather is producing days when exterior work is impractical.
December through February is largely a commercial-only and selective-residential season. Exterior work in the snow belt cities — Buffalo, Rochester, Syracuse — effectively closes from late December through early March. NYC continues at reduced volume. The better operators use the winter for back-shop work, tool repair, training, and the rebuilding of their squeegee channels. I rebuild my channels twice a year. The winter rebuild is the more important of the two.
New York City is five boroughs and a thousand neighborhoods, and the cleaning protocols vary by borough more than the published literature acknowledges. Manhattan below 96th Street is a high-rise commercial and pre-war co-op market dominated by union labor and a handful of specialty firms. Manhattan above 96th and the outer-borough urban core (Brooklyn from Greenpoint south through Bay Ridge, Queens from Astoria east through Forest Hills, the Bronx along the Grand Concourse) is the pre-war residential and small-commercial market where the bulk of the route work happens. Staten Island is largely a post-1960 single-family market with a smaller pre-war pocket in St. George. The five boroughs are not one market and a working operator picks the borough or boroughs they understand and stays there.
The five-borough trade in 2026 is shaped by three things: the gradual aging-out of the trade's first-generation immigrant operators, the unionization push on Manhattan high-rise work, and the regulatory tightening around rope-access certification. The work itself is unchanged. The labor market around the work has changed substantially in the last five years.
Long Island — Nassau and Suffolk — is a higher-end residential market with a meaningful concentration of waterfront and waterview properties on the North Shore and the South Shore. The hard water is the cleaning consideration. The clientele expects high-touch service. The drive times between accounts are the operational consideration; a Long Island route with twenty accounts is not the same kind of route as a Park Slope route with twenty accounts, and the pricing reflects the difference.
Westchester, Rockland, Putnam — the lower Hudson Valley — is a mixed-stock residential market with the same pre-war considerations as NYC plus a meaningful population of post-1960 single-family colonial and split-level. The water is soft in the south, harder in the north. The market is steady year-round outside of the brief mid-winter pause.
Buffalo, Rochester, Syracuse — the upstate snow-belt cities — are residential and commercial markets with the standard upstate considerations: pre-war stock in the historic neighborhoods, moderately hard surface water, and a winter cleaning pause from late December through early March. The lake-effect snow off Lake Erie and Lake Ontario produces seasonal snow loads that close exterior residential work for stretches that the downstate operator should not underestimate. Buffalo can receive ninety-six inches of seasonal snow without anyone in the city remarking on it.
Albany, Schenectady, Troy — the Capital District — is a smaller-market version of the upstate cities, with a slightly milder winter pattern and a denser concentration of pre-war stock in the historic core of each city.
Binghamton, Utica, and the smaller upstate cities are stable but small markets where a single operator can hold a meaningful share of the residential and small-commercial work. Well-water households make up a higher proportion of the customer base.
The New York State trade is in a moment of generational transition. The cleaners who started in the nineteen-eighties and nineteen-nineties — the people who built the long-running family-route businesses in the boroughs and the suburbs — are aging out. Many of them did not document their routes. Many of them did not train successors. Some of them are selling their customer lists to new operators; others are simply retiring and letting the routes dissolve.
Drew Giordano' piece on Anthony Cassara documents one of the routes that did not dissolve, and the conditions that produced that outcome — three generations of one family, one notebook, sixty-seven years of one trade, and a customer list that holds because the work has held. The Cassara family is, in this state, the exception. The more common pattern is that the second generation chose a different line of work, the founder retired, and the route was absorbed by a larger firm or simply ended.
The opportunity in this state for a new operator is, in my view, considerable. The pre-war housing stock requires specialty knowledge that the bigger franchise outfits do not, in the main, possess. The boroughs are densely populated enough to support tight geographic routes. The clientele in the upper-end residential market — the brownstone owners, the co-op-board members on the Upper West Side, the waterfront families on the North Shore of Long Island — pays well for the cleaner who can demonstrate, on the first job, that they understand what the substrate is and what it wants.
The published literature on entering the trade in this state is thin. Jan Davenport has written the most useful working piece on the pricing question — the pricing-your-first-commercial-route piece covers the math, and the math applies in New York with adjustments for the higher cost of living and the higher labor cost. The geographic structure of the routes is different here than in suburban Detroit, but the underlying economics are the same.
A note on certifications: the Department of Buildings in NYC requires specific certifications for any rope-access or suspended-platform work above ten stories in the city, and the certifications have tightened meaningfully in the last five years. If you are interested in the high-rise work, plan on a multi-year certification path and a willingness to start as a ground-crew member on someone else's project. The residential and small-commercial market does not require these certifications. The high-rise market does, and there is no shortcut.
If you are a homeowner in New York State trying to figure out the cleaning protocol for your house, the short version is this: identify the water profile of your service area (NYC soft, Long Island hard, upstate variable), identify the age of your housing stock (pre-1945 wood-sash glass wants gentler protocols), and find a cleaner who can describe both of those features to you on the first phone call. If the cleaner cannot, find a different cleaner.
If you are a cleaner moving to New York or starting in the trade here, the long version is more important. Read the four-stage wash piece. Read the squeegee anatomy and technique piece — the squeegee is the trade and the cleaner who does not understand the rubber, the channel, the brass, and the swivel is not yet a trade. Read the glass types piece because you will encounter every type of glass made in the last hundred and fifty years on a typical month of work in this state. Read why streaks return overnight because you will produce them, and you will need to understand the mechanism before you can fix it.
And then go work for somebody. Pick the busiest residential operator in the borough you want to work in, ask if they will take you on as a ride-along for a week without pay, and watch what they do. You will see, in the first two days, more of what the trade actually requires than any amount of reading will teach you. The trade is a practice. The practice is the trade. The fundamentals are the trade and the fan stroke is, as I have written before, a finishing move.
I have been cleaning windows in New York for nineteen years. I am still learning the boroughs. The state is bigger and more various than I understood when I arrived. It is the most interesting place I have done the work, and I do not think I will do it anywhere else.
NYC tap water comes almost entirely from the Catskill/Delaware system through the Croton augmentation. Hardness runs 35-60 mg/L — among the softest municipal water of any major North American city. The water is not the working problem; the housing stock is.
Buffalo draws from Lake Erie. Hardness runs moderate at around 130 mg/L. Lake-effect snow and the freeze-thaw cycle dominate the working calendar here; water is the secondary concern.
Yonkers and most of lower Westchester draw on the same Catskill/Croton system as NYC. The water is soft. The pre-war stock in southern Westchester is the working consideration — wood-sash glass in masonry buildings from the 1920s through the 1940s.
Rochester pulls from Lake Ontario and Hemlock Lake. Hardness runs moderate at around 115 mg/L. The Genesee Brewery is the city's working metaphor for the water — soft enough for lager, hard enough that you notice it after a long route.
Syracuse draws from Skaneateles Lake, which is unfiltered and exceptionally clear but moderately hard at around 140 mg/L. Lake-effect snow off Lake Ontario produces the heaviest winter accumulation of any major Northeast city.
Nassau County sits on a sole-source aquifer and runs distinctly hard at 180-260 mg/L. Iron and nitrate are present in pockets. Long Island water is the most cleaning-relevant water in the state outside of upstate wells.
Each city page carries its own water profile, neighborhood breakdown, cost range, and city-specific operating notes.
| CONTAMINANT | SEASON | SEVERITY |
|---|---|---|
| Road salt aerosol | Dec-Mar | severe |
| Heavy road salting from December through March produces an aerosolized salt mist that bonds to ground-floor glass and corrodes aluminum and steel sash hardware over time. The salt film cleans off but the underlying frame damage is cumulative. Worst in NYC, Long Island, and the snow belt. | ||
| Coal-soot and pre-war masonry residue | year-round | moderate |
| Pre-WWII NYC and inner-Westchester building stock still sheds a fine particulate that combines with airborne grime to produce the characteristic gray film on old brownstone and tenement windows. The film is not modern pollution alone — masonry chemistry and a century of coal-era residue are in the substrate. | ||
| Cottonwood and London plane debris | May-Jun | moderate |
| Eastern cottonwood and the London plane (the dominant NYC street tree) shed seeds, catkins, and fine fluff in May and early June. Cottonwood fluff clings to wet glass with a static cling that bridges to a sap residue. London plane sheds bark flakes and a fine resin that requires a solvent pass on awnings and ground-floor work. | ||
| Long Island sea-aerosol and iron | year-round (peaks Nov-Feb) | moderate |
| South Shore exposures see salt aerosol off the Atlantic year-round, with the heaviest deposition during nor'easter season. Combined with the elevated iron content in some Long Island groundwater, this produces an orange-rust tint on hard-water deposits that does not clear with citric acid alone. | ||
| Upstate pollen complex (oak, birch, maple) | Apr-May | moderate |
| The hardwood pollen wave in the Hudson Valley, the Adirondacks, and the western tier runs heavy from mid-April through May. Yellow pollen films horizontal glass and the upper third of vertical glass on east-facing exposures. Requires a surfactant pre-rinse on most spring jobs north of Westchester. | ||
| Pre-war glazing putty failure | year-round | mild |
| The pre-1945 wood-sash housing stock in NYC, Westchester, and the older upstate cities is reaching the end of its original glazing putty service life. The putty crumbles around the perimeter of the pane and produces a chalky residue on the lower edge of the glass that cleaning does not solve. Documentation and a glazier referral are the right move. | ||
April through early June is the residential peak. The post-winter salt-and-grime call drives volume; pollen and cottonwood work picks up in May.
June through August is steady residential and commercial. Humidity is the working consideration — early-morning starts help on east-facing exposures. The trade does not shut down for heat the way Texas does.
September through November is the second peak. Pre-holiday cleaning drives October and November. The pre-Thanksgiving rush is real in NYC.
December through March is largely commercial. Residential exterior work is paused in the snow belt and reduced in NYC. Interior work continues; the better operators use winter for back-shop and equipment work.
Land-adjacent states each get their own water-and-window profile. If you're working a regional route or moving across the border, these are the natural next reads.
Municipal water in New York typically runs 35–350 mg/L (CaCO₃), which is in the moderate range typical for most US markets. Hardness varies by city and source; check the city-by-city breakdown below or use our ZIP-code hard-water tool for a closer reading.
In New York, the working operator's calendar typically favors fall — september through november is the second peak. pre-holiday cleaning drives october and november. the pre-thanksgiving rush is real in nyc. For a full seasonal breakdown, see the cleaning calendar section on this page.
Residential window cleaning in New York typically runs $8–18 per pane or $200–500 for a standard single-family house exterior, depending on metro pricing, story height, screen condition, and frame type. Use our cost estimator for a calibrated quote for your home.
The dominant residue problem in New York is road salt aerosol (Dec-Mar). Heavy road salting from December through March produces an aerosolized salt mist that bonds to ground-floor glass and corrodes aluminum and steel sash hardware over time. The salt film cleans off but the underlying frame damage is cumulative. Worst in NYC, Long Island, and the snow belt. Regular cleaning i
Single-story homes with accessible glazing can be cleaned by homeowners using basic squeegee technique and the right solution. Multi-story houses, post-2010 coated glass, hard-water markets, and screens-plus-tracks work usually pay for themselves with a professional. See our hiring checklist below.
Lake-effect snow (the Buffalo-Rochester-Syracuse corridor receives some of the heaviest seasonal snowfall in the continental US), nor'easters delivering wet salty wind to coastal exposures, and the late-summer hurricane-remnant rains that occasionally reach the Hudson Valley. These conditions shape what a cleaner needs to know about scheduling, technique, and timing. The cleani
New York City is the largest market in New York and has the deepest concentration of professional window-cleaning services. Use our "Find a Cleaner" page to be matched with vetted local pros, or read the New York City section of this page for the city-specific water and cleaning context.
Abby Giordano is part of the Giordano Inc. editorial team and covers the Northeast and New England editorial beat for Window Washing Guide. Editorial content is researched and reviewed in collaboration with the Giordano Inc. editorial team and informed by interviews with practicing window-washing operators in the region, plus published trade and apprenticeship technique references.
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