pressure-washing

Pressure Washing Cost in New Hampshire (2026 Price Guide)

A 2026 New Hampshire pressure washing cost guide with real price ranges for siding, driveways, decks, and roofs, plus soft wash vs pressure wash tips.

Pressure Washing Cost in New Hampshire (2026 Price Guide)

Most New Hampshire homeowners spend somewhere between $200 and $600 to have a pro clean the exterior of an average single-family house in 2026. That range covers the common jobs people book once the pollen settles and the mildew shows up: house siding, a driveway, a deck, or a walkway. Bigger or dirtier projects like a full roof cleaning push the number higher, and a small one-off like a front porch can come in under $200.

The wide spread exists because pricing tracks square footage and how much grime has built up, not a flat rate per house. A shaded lot in Bedford, NH with heavy tree cover collects far more green mildew than a sun-exposed ranch in an open subdivision, and that difference shows up on the invoice. This guide breaks down what each job runs across the state, what actually drives the price up or down, and when soft washing beats high pressure. If you want to compare local crews after reading, the pressure washing pros listed on our site are a good starting point.

What Pressure Washing Costs by Job in New Hampshire

Pros price most exterior cleaning two ways. Some quote by the square foot, usually landing between $0.15 and $0.50 depending on the surface and the method. Others quote a flat rate per job or charge an hourly figure that runs roughly $50 to $160 an hour. For a typical home, the flat-per-job number is what you will hear most often, and it helps to know the going rate for each surface before you call around.

House siding is the most common request. Cleaning the exterior walls of an average New Hampshire home runs about $200 to $450, with vinyl on the lower end and larger two-story colonials on the higher end. Most siding should be soft washed rather than blasted, which we cover further down.

Driveways and walkways are the next most popular. A standard two-car concrete or asphalt driveway usually costs $100 to $300, or roughly $0.20 to $0.40 per square foot. Long driveways common on rural lots up toward Concord, NH or the Lakes Region add to that figure because there is simply more surface to cover.

Decks and patios fall in a similar range. A basic deck cleaning runs about $100 to $250, though pressure treated wood and older boards need a gentler touch and sometimes a wood-safe treatment that adds cost. A paver or stone patio lands in the same neighborhood, with sealing offered as a separate add-on.

Roof cleaning is the priciest single job for most homeowners. Expect $300 to $700 for an average roof, and larger or steeper roofs can run past that. Roofs are almost always soft washed, since high pressure strips the granules off asphalt shingles and voids many manufacturer warranties.

Why New Hampshire Homes Cost What They Do to Clean

Two houses of the same size can get very different quotes, and the reasons are worth understanding before you assume you are being overcharged. Size is the obvious driver, but the condition of the surface matters just as much. A house that has not been cleaned in five years takes longer and uses more product than one cleaned every other spring.

New Hampshire's climate does homeowners no favors here. Humid summers, wet springs, and long stretches of shade under mature oaks and pines create ideal conditions for mildew, algae, and that greenish-black film that creeps up north-facing walls. The green streaking you see on siding is usually algae, and the dark stains running down a roof are typically a hardy organism called Gloeocapsa magma. Both feed on moisture and shade, which the state has in abundance.

Tree cover is a real cost factor. A wooded lot in Amherst, NH or Hollis, NH drops sap, pine needles, and constant leaf debris, and it keeps surfaces damp long enough for growth to take hold. Crews often need extra cleaning solution and a second pass on heavily shaded elevations, and that labor shows up in the price.

Access and height play a part too. A three-story home, a steep hillside lot, or a deck wrapped around a walkout basement all take more setup, more ladder work, and more time. Distance matters as well, since a crew driving out to a remote property may fold travel into the estimate.

Water source and prep can nudge the number too. Most pros use your outdoor spigot, so a working, accessible hose bib keeps things simple. If gutters are packed with debris or landscaping needs covering to protect plants from cleaning solution, that prep time is part of the job.

Soft Wash or Pressure Wash: Which Your House Needs

The terms get used interchangeably, but they describe two different methods, and picking the wrong one can damage your home. Pressure washing uses high-pressure water to blast dirt off hard surfaces. Soft washing uses low pressure, under 500 PSI, combined with a cleaning solution that kills algae and mildew at the root rather than just knocking it loose.

Soft washing is the right call for anything that high pressure can harm. That includes vinyl and painted siding, stucco, wood, and asphalt shingle roofs. The solution does the cleaning, so the surface never takes a beating, and because it kills the organism instead of just rinsing it, the results last longer before regrowth returns. Soft washing runs about $0.15 to $0.75 per square foot depending on the surface, with roofs at the upper end of that spread.

High pressure still has its place. Concrete driveways, brick, pavers, and stone stand up to it well, and for caked-on dirt and tire marks it is the faster, more effective choice. A good crew will soft wash your siding and roof, then switch to higher pressure for the flatwork, all in the same visit. If a company wants to blast your vinyl siding or shingles with a high-pressure wand, that is a warning sign worth questioning.

Doing It Yourself Versus Hiring a Pro

Renting a pressure washer runs about $40 to $100 a day at most New Hampshire hardware and equipment stores, and buying a consumer-grade electric or gas unit costs anywhere from $150 to $600. For a small job like a walkway, a fence, or a patio, doing it yourself is reasonable and can save real money.

The math changes for siding and roofs. A rented consumer machine does not come with the low-pressure soft wash setup or the cleaning solution that these surfaces need, and using straight high pressure is how homeowners crack siding, force water behind panels, or strip shingle granules. Roof work adds a fall risk that is not worth taking for most people. On top of that, the algae comes right back within months when you rinse without treating it.

A fair way to split the difference is to handle the ground-level flatwork yourself and hire out the siding and roof. For a full-house clean, a pro brings commercial equipment, the right chemistry, and insurance if something goes wrong, and the finished result usually lasts a year or two longer than a plain water rinse. You can browse more home-care guides and local service comparisons on our blog if you want to weigh your options before booking.

Frequently Asked Questions

How often should I pressure wash my house in New Hampshire?

Most homes here benefit from a cleaning every one to two years, and shaded or heavily wooded lots often need it annually. Spring and early summer are the busiest booking windows, once pollen has fallen and the winter grime is ready to come off.

Is soft washing safe for asphalt shingle roofs?

Yes, and it is the recommended method for them. High pressure knocks the protective granules off shingles and can void the warranty, while a low-pressure soft wash uses a cleaning solution to kill the algae and stains without touching the shingle surface. Budget roughly $300 to $700 for an average New Hampshire roof.

Will pressure washing damage my vinyl siding?

It can if a crew uses full high pressure, which forces water behind the panels and can crack older vinyl. That is why reputable pros soft wash siding instead. Cleaning the siding on an average home runs about $200 to $450 depending on size and how much buildup has set in.

Does the price include cleaning solution and cleanup?

For most established companies, yes. The quote typically covers the cleaning solution, protecting nearby landscaping, and rinsing everything down afterward. Always confirm what is included when you get an estimate, since add-ons like deck sealing or gutter cleaning are usually priced separately.