pressure-washing

How Much Does Pressure Washing Cost in Dorchester, MA? (2026) Triple-Decker Prices and Late-Season Timing

Pressure washing prices in Dorchester, MA for 2026, from triple-decker siding and stacked porches to driveways, plus how to time a wash before the cold sets in.

How Much Does Pressure Washing Cost in Dorchester, MA? (2026) Triple-Decker Prices and Late-Season Timing

Washing the siding on a typical Dorchester triple-decker costs about $450 to $900 in 2026, and adding all three stacked porches can bring the total to $700 to $1,300. A single-family Colonial in Pope's Hill or Lower Mills usually runs $300 to $550 for the house alone. Driveways, walkways, and back stairs are priced on top.

Those numbers come up a lot right now. Late October is the last real window for exterior washing in Boston before overnight temperatures drop into the 30s, and many Dorchester owners want the green streaks off the north side before the house sits under snow for four months.

Pricing here follows the building. Three stories of clapboard or vinyl, tight side yards, shared driveways, and permit parking all change what a crew charges, sometimes more than square footage does.

2026 Pressure Washing Prices in Dorchester, MA

Most local crews quote by the job after looking at the house, either in person or from photos and a street view. Small add-ons like a front stoop or a fence section are often bundled in when you book a full house wash.

The ranges below are approximate and assume normal grime, mildew, and pollen buildup. Heavy black algae, oil stains, or peeling paint can push the price higher.

Many companies have a minimum of $200 to $300 per visit. If you only need a set of steps washed, ask a neighbor to split a visit with you so the crew can do both houses on one trip.

Why Triple-Deckers Price Differently

A triple-decker is roughly 35 to 40 feet tall at the roofline. That height is the main cost driver. Crews need longer wands, extension poles, or ladders to reach the third floor and the bay windows, and some jobs need a soft wash system that can spray cleaning solution to the top without anyone climbing.

Lot size is the second factor. Most Dorchester triple-deckers sit a few feet from the neighbor on at least one side, with a narrow shared driveway on the other. Crews have to protect the house next door from overspray, move cars, and work around fences, which slows the job.

The porches are their own project. Front porches on many triple-deckers are stacked three high, often with painted wood decking, spindles, and ceiling boards. Each level needs gentle washing, and painted wood can lift or splinter if someone uses too much pressure.

Parking and Water Access

Large parts of Dorchester are resident permit parking, and a crew truck with a water tank needs a spot near the house for several hours. Some companies ask owners to save a space or get a visitor pass. Others add a small fee if they expect to feed a meter or circle the block.

Crews almost always connect to your outdoor spigot. If your hose bib is already shut off for winter, turn it back on before the crew arrives, then drain it again afterward.

Late October and November Timing

Washing in the cold carries real risks. Water sitting in clapboard seams, porch boards, and window tracks can freeze overnight, and cleaning solutions used for soft washing work poorly once the air drops under about 50 degrees. Most crews in Boston stop exterior siding work by mid-November, or whenever the forecast shows a stretch of freezing nights.

The best late-season days are dry, sunny, and in the 50s or warmer, with no frost expected for a couple of nights after. That gives porch decks and siding time to dry out. Crews tend to schedule these days fast, so a flexible booking often gets you on the calendar sooner.

Fall washing has a practical upside. Mildew and algae grow most in late summer, and removing them before winter keeps them from spreading under the snow on the shaded side of the house. Spring is the other common window, usually from late April through May once the pollen settles.

Leaves and Gutters

Oak and maple leaves from the trees along Dorchester Avenue and the side streets end up on porches, in gutters, and stuck to wet siding. Most crews will blow off porches and walkways first. Gutter cleaning is usually a separate charge, around $150 to $300 for a triple-decker, and it makes sense to do it in the same visit before the first snow.

Neighborhood Differences Across Dorchester

Savin Hill, Ashmont, and Melville Park have more older wood homes with original clapboard, detailed trim, and Victorian porches. These need soft washing at low pressure and more hand work around trim, so they price toward the upper end.

Fields Corner, Uphams Corner, and Codman Square have many vinyl-sided triple-deckers. Vinyl cleans faster and handles a soft wash well, which keeps costs closer to the middle of the range. Adams Village, Cedar Grove, and Pope's Hill have more single-family homes with driveways, so concrete cleaning makes up a bigger share of those jobs.

Homes near the water in Savin Hill and Port Norfolk see more salt air and mildew on the side facing the bay. Expect a bit more cleaning solution and time on those walls.

Older Paint and Lead Concerns

Most Dorchester triple-deckers were built between the 1890s and the 1920s, long before lead paint was banned in 1978. Many have been resided in vinyl, but porches, trim, and some clapboard still carry layers of old paint. High-pressure washing on those surfaces can strip paint chips into the yard.

Massachusetts and federal rules require contractors who disturb lead paint on pre-1978 homes to follow lead-safe work practices and hold the right certification. A washing crew that plans to strip loose paint as prep for painting is doing renovation work and should be certified. For a simple wash, a low pressure soft wash avoids the problem on painted surfaces.

Ask any crew how they plan to handle painted wood before they start. A clear answer is a good sign that they work on older Boston homes regularly.

Runoff, Neighbors, and Shared Driveways

Wash water from a triple-decker has nowhere to go but the driveway, the sidewalk, and the street drain. Boston discourages letting detergent and debris run into storm drains, and careful crews use biodegradable solutions and block or redirect runoff.

Shared driveways need a quick conversation. Your neighbor's car will likely get misted, and their side of the fence may get some spray. Giving them a heads-up a few days ahead keeps things friendly, and some neighbors decide to book their own wash at the same time for a bundled price.

Condo Triple-Deckers and Splitting the Bill

A lot of Dorchester triple-deckers have been converted into three condo units, each with its own owner. Exterior washing usually falls under the condo association, even when the association is just three neighbors and a shared bank account. The bill for a $900 wash works out to about $300 per unit, which is easier to approve than most owners expect.

The harder part is agreement on scope. One owner may want the porches done while another only cares about the siding facing the street. Getting a quote that prices each item separately lets the association pick what fits the budget, and it avoids arguments after the crew leaves.

Owner-occupied triple-deckers with two rental floors have a different question. Tenants on the upper floors should get notice before the crew arrives, since windows need to stay shut and porch furniture needs to come inside. A note on each door three or four days ahead is usually enough.

Getting a Fair Quote

Ask for a written quote that lists each surface, the method for each one, and whether the price includes porches, gutters, and windows. Pressure for concrete and soft wash for siding is the normal split. A crew that wants to blast the whole house at high pressure may be cheaper, though it risks damage to old paint and window seals.

Get two or three quotes, and look for crews that have worked on Dorchester triple-deckers before. You can compare local companies through our pressure washing company listings, and the other Boston area home guides cover gutter, roofing, and fall maintenance costs.

Dorchester Pressure Washing Questions

Is it too late to pressure wash in Dorchester in November?

It depends on the week. Crews will still wash on dry days in the 50s with no frost forecast for a night or two afterward, but most stop siding work by mid-November and only take concrete jobs after that.

Can I pressure wash my own triple-decker?

The first floor and the driveway are manageable with a rented machine for about $80 to $120 a day. The second and third floors call for ladders at heights over 25 feet, and most owners hire that part out.

Does pressure washing hurt vinyl siding?

Not when done at low pressure with a proper cleaning solution. High pressure aimed upward can force water behind the panels, which can lead to mold inside the wall.

How often should a Dorchester home be washed?

Every one to two years is typical. Shaded north walls and houses close to the water often need it yearly to keep algae from coming back.