Most pressure washing price articles are written by companies that make money sending you to a contractor. That doesn’t make them wrong, but it does mean nobody publishing those numbers has any reason to tell you when a quote is fair.
WashNumbers exists to publish the number and show the work behind it.
Who runs this
My name is Diego Hernández. I spent months learning how to build a site properly before I published a single page here: how to structure it, how to source data, and how to keep it current instead of letting it rot the way most cost guides do.
I looked at several subjects before settling on this one. Pressure washing pricing turned out to be where the gap was widest between what people search for and what anyone had actually bothered to publish. In Spain, where I work from, almost nobody needs a site like this. In the US it’s a question hundreds of thousands of homeowners ask every month, and what they get back is mostly recycled ranges with no working shown.
So that’s what this is: the answers, with the working shown.
I’m not a pressure washing contractor and I don’t pretend to be. What I do is collect pricing data, model it, and publish the assumptions so you can argue with them. When a page needs trade judgment I don’t have, I go get it from someone who does.
Where the numbers come from
Three sources, in order of how much weight they carry:
Contractor survey data
We’re collecting rates directly from working contractors across the US: minimum charges, per-square-foot rates by surface, and the upcharges nobody publishes. State-level averages only. Individual pricing is never published.
Published industry pricing
Rates from Thumbtack, Angi, Homewyse and manufacturer guidance, cited on the page where we use them.
Modeled estimates
When neither of the above covers a case, we model it and say so. Every calculator shows its adjustment factors instead of returning a number from nowhere.
You can read the full methodology behind every calculator for how each one is built.
What this site is not
It’s not a quote. No calculator can see your siding, your access, or how long it’s been since the last wash. Our job is to tell you whether the quote in your inbox is reasonable, not to replace it.
It’s not a directory. We don’t rank contractors and we don’t take payment for placement.
How WashNumbers is funded
The site carries advertising through Google AdSense, and some pages may also carry affiliate links to tools and software. That is the whole business model: no lead selling, no paid placements, no contractor directory. Neither one touches the numbers. No contractor, brand or advertiser has ever paid to change a rate on this site, and if that ever changes it will be written on the page, not buried here.
Corrections
If a number on this site is wrong, tell me and I’ll fix it. Pricing moves, and a cost guide that never gets updated is just an old guess. Every page carries the date it was last reviewed.
Start with the homeowner cost calculator or the full library of cost guides. If you’d rather ask directly, get in touch.
Where these numbers come from
2026 Pricing Dataset
220 observations, 28 sources, open in your browser.
Methodology
What we include, what we exclude, and why.
Industry Statistics
Market size, operator counts and what the trade actually looks like.
The Contractor Survey
The next edition is built from rates given directly by operators.
Written by Diego Hernández, founder of WashNumbers. Cost models are built from published contractor rates and public price observations. See how we build these numbers.
Last reviewed: August 2026