Power Washing Cost: Hot Water Rates by Surface and Square Foot
Power washing costs $212 to $448 for a typical residential job, with a national average near $310. Hot water work is priced at roughly $0.30 to $0.75 per square foot, and contractors charge $60 to $125 per hour when they bill by time instead.
What drives the power washing cost
Power washing cost is driven by surface area, how heavily soiled the surface is, and whether the crew uses heated water. That last point is the real distinction: power washing uses hot water to create wet steam, while pressure washing uses cold water at similar pressure. HomeAdvisor puts the combined national average at $310, with most homeowners paying $212 to $448 and a wider low to high span of $100 to $575. Because heating equipment costs more to run, power washing sits toward the upper end of any given range compared with a cold water wash.
Most contractors quote by the square foot, then sanity check against a minimum charge. Bob Vila reports hot water power washing at $0.40 to $0.55 per square foot, and Twisted Nozzle puts power washing at $0.30 to $0.75 per square foot against $0.20 to $0.40 for cold water pressure washing on the same driveway. That gap of roughly 50 percent is what you are paying for the heat.
| Pricing basis | Typical power washing rate |
|---|---|
| Per square foot, flat surfaces | $0.30 – $0.75 |
| Per square foot, roof | $0.50 – $1.00 |
| Per hour, professional crew | $60 – $125 |
| Per hour, handyperson with own gear | from $40 |
Cost by surface
A whole house exterior, a driveway and a deck are three different jobs with three different price points, even though one crew can do all of them in a single visit. Bundling is where the savings are: most companies discount the second and third surface because the equipment is already set up on site.
| Surface | Typical cost |
|---|---|
| House exterior, whole home wash | $150 – $1,200 |
| Driveway | $100 – $350 |
| Deck | $90 – $770 |
| Roof | $450 – $700 |
| Fence | $150 – $300 |
| Gutters, exterior only | $100 – $300 |
Driveways are the most predictable line item. HomeAdvisor puts the average driveway at $210 with a normal range of $100 to $350, and notes the job usually takes one to two hours. Decks vary far more because size and railing detail differ so much: Bob Vila reports a $90 to $770 range against a $150 national average, meaning most decks are small jobs and a few large multi level ones pull the top of the range up.
When hot water is worth paying for
- Grease and oil: heat is meaningfully better on oil stains, gum and grease, which is the main reason to pay the premium on a garage floor or driveway apron.
- Mold, mildew and algae: heat helps kill organic growth rather than just knocking it loose, so it lasts longer in humid climates.
- Concrete and stone: durable hard surfaces tolerate hot water well.
- Skip it on soft surfaces: hot water is more aggressive and can damage painted siding, older concrete, pavers and heat sensitive exteriors. For those, a cold water or soft wash is both cheaper and safer.
- Prep before painting: a wash before painting is quoted as its own scope. Contractor Plus puts a typical before painting wash at $719 to $1,438 at about $1.03 per square foot, which reflects the extra care and masking involved.
If you are pricing exterior upkeep for the season, our gutter cleaning cost guide covers the job most often bundled into the same visit.
Is your quote reasonable?
For a standard single story home exterior plus a two car driveway, a power washing quote of $250 to $600 is typical across most of the country, and that matches what regional contractors in humid markets like Houston report for the same scope. Under $150 usually means one small surface only, or a cold water wash quoted as power washing. Above $700 for a single story house should come with a specific reason: a second or third story, roof work, heavy mold requiring detergents, or painting prep. Two questions separate a solid quote from a weak one: ask whether the water is actually heated, since the terms are used interchangeably in the trade and you may be paying a hot water price for a cold water wash; and ask what surfaces are included by name, because gutters, fences and walkways are commonly quoted as add-ons rather than part of a house wash. Confirm the contractor carries liability insurance, since high pressure water damage to siding, window seals and landscaping is the most frequent complaint in this trade.
Last updated: September 2026