If a pressure washing quote isn’t specific, it’s not a quote. It’s a guess with a price tag.
And guesses are how you end up arguing about “what was included” while your siding dries in the sun.
I’ve seen beautifully written estimates that still left out the one detail that mattered: *what, exactly, are they going to do to your property, and what happens if it doesn’t come out the way you expect?* A good quote answers that in plain language, backed by technical clarity.
One line for emphasis:
A vague quote is where hidden fees go to live.
Scope: the surfaces, the boundaries, the “not included” stuff
Start here because everything else depends on it. If the quote doesn’t clearly identify surfaces, square footage (or linear footage), and access assumptions, you can’t compare it to another bid. You’re comparing vibes. If you’re not even sure what areas should be included, Where Should You Pressure Wash Your Property? is a helpful place to start.
A real quote should spell out:
– Exactly what gets cleaned: driveway, walkway, front steps, patio, siding, soffits, gutters, fence, deck, roof treatment, etc.
– What doesn’t: “oil stain removal not included,” “rust stains may not fully lift,” “no roof work,” “no interior courtyard access,” that kind of thing.
– Dimensions: measurements or an attached site diagram. Even a simple “approx. 1,200 sqft concrete + 2-story vinyl siding” helps.
– Constraints: locked gates, narrow side yard, steep slope, shared driveway, HOA rules.
Now, this won’t apply to everyone, but… if your property has older masonry, peeling paint, or a wood deck that hasn’t been sealed in years, the scope should include a short note about risk. A contractor who refuses to document risk is usually the same contractor who refuses responsibility later.
“How clean is clean?” (Depth of cleaning and expected outcome)
This is where homeowners and contractors talk past each other.
You might be expecting “looks brand new.” They might be pricing “general wash to remove surface grime.” Both are valid. They are not the same service.
Look for language that defines the target outcome:
– Maintenance wash: removes loose dirt, pollen, light algae film
– Restorative wash: deeper organic growth removal, more dwell time, more rinsing
– Stain-focused treatment: oil, tannins, rust, irrigation stains (often a separate chemical step)
Here’s the thing: stain removal is chemistry plus time, not just “more pressure.” If a quote claims “we’ll remove all stains guaranteed” without explaining method and limitations, I get suspicious fast.
One quick data point: The U.S. Environmental Protection Agency notes that many household products and outdoor chemicals can enter stormwater systems through runoff, which is why containment/disposal practices matter in exterior cleaning jobs (EPA stormwater guidance: https://www.epa.gov/npdes). If a company is applying chemicals, they should have a plan, not a shrug.
Methods: soft wash vs. pressure washing (and why it belongs in writing)
A quote should name the method per surface, not just the marketing term.
Pressure washing is high-pressure water cleaning.
Soft washing is typically lower pressure with detergents/sodium hypochlorite blends, surfactants, and controlled dwell time, then rinse.
If you’re cleaning:
– Vinyl siding, stucco, painted surfaces: soft wash is usually the safer standard
– Concrete flatwork: surface cleaner + appropriate PSI/GPM is common
– Wood: depends heavily on condition and grain; too much pressure will “fuzz” it (I’ve seen decks permanently striped from an eager wand)
A professional quote will describe a sequence, because process affects results:
Apply → dwell → agitate (if needed) → rinse → post-treatment/neutralizer (if used)
No need for a novel, but two sentences can prevent a dispute.
Tools & equipment: not just “we have a pressure washer”
This section can be short, but it should exist.
You’re looking for proof they’re matching equipment to the substrate:
– PSI and GPM range (pressure and flow)
– Surface cleaner use for concrete (reduces zebra striping)
– Nozzle selection / tips appropriate to the job
– Hot vs. cold water if grease is involved (hot water can change the game on commercial pads)
Opinionated take: If the quote doesn’t mention containment around delicate landscaping, windows, outdoor outlets, and door seals, you’re probably hiring a “spray-and-pray” outfit. Some crews are careful by habit; others need it written down.
Materials and chemicals: what’s being applied to your property
If chemicals are used, the quote should say so. Not because chemicals are “bad,” but because they affect plants, paint, pets, and runoff obligations.
At minimum, you want:
– Product type (detergent, degreaser, oxidizer, SH-based mix, etc.)
– Any neutralization step if strong cleaners are used
– Plant protection plan: pre-wet, cover, rinse, post-rinse
– Residue expectations: Will there be a mild odor? Any re-entry guidance?
A contractor doesn’t need to hand over proprietary ratios, but they should be willing to state whether they’re using biodegradable surfactants, whether they’ll rinse landscaping, and whether there are local restrictions they follow.
Pricing that doesn’t play games: line items, units, and add-ons
If the number is one big lump sum with no structure, you don’t know what you’re paying for. You also don’t know what gets cut when the day runs long.
A quote worth signing usually includes:
– Line-item pricing (or at least line-item scope)
– Unit basis: per sqft, per side of home, per hour, per fixture (gutter run, stair set, etc.)
– What triggers extra charges: heavy staining, inaccessible areas, required ladder work, furniture moving, extra rinse cycles
– Taxes, disposal fees, travel fees clearly stated
Look, deposits aren’t inherently shady. But the payment terms should be clear and calm. “50% deposit non-refundable no matter what” is where I start asking hard questions.
Scheduling and site logistics (the part people ignore until it hurts)
Some quotes are great on cleaning and terrible on logistics. Then the crew arrives and… you’re improvising.
A good quote covers:
Timing
– start window (date + arrival range)
– estimated duration
– weather delay policy
Access
– gate codes, pets, water spigot location
– parking/staging area for equipment
– any required homeowner prep: move furniture, close windows, cover outlets
Short section, big payoff.
Also: ask who’s supervising on site. The “company” might be legitimate, but the job might still be delegated to whoever is available that week.
Preexisting conditions: the honest disclaimers you actually want
This is where professionals quietly stand out.
The quote should document known issues that could change outcomes:
– oxidized vinyl
– peeling paint or failing caulk
– cracked mortar
– spalling concrete
– soft/aged wood
– existing water intrusion or failed flashing
Why does this matter? Because pressure washing can reveal damage you didn’t notice, and you don’t want that argument later (“you caused it” vs “it was already there”). Photos attached to the quote are a green flag.
Warranties and guarantees (and the sneaky ways they’re written)
Guarantees should be specific. “Satisfaction guaranteed” can mean nothing.
Ask what they mean by guarantee:
– Do they offer a free touch-up within a defined period?
– Does the warranty cover workmanship only or also results?
– What voids it? (example: homeowner watering plants immediately after treatment, painting over wet surfaces, etc.)
One more opinion from the field: “We guarantee stain removal” is rare for a reason. Organic growth, yes.Years-old rust and oil, not always. A realistic contractor will say that out loud and put it in the estimate.
A quick checklist for comparing two quotes without overthinking it
When you’re staring at two numbers and your brain wants to pick the cheaper one, run this:
– Does each quote list the same surfaces and square footage?
– Are the methods (soft wash vs pressure, hot vs cold) clearly stated?
– Are chemicals and plant protection addressed?
– Is pricing itemized or at least clearly scoped?
– Do they define start date window + duration + weather policy?
– Are add-ons and triggers for extra charges spelled out?
– Is there a workmanship warranty or touch-up policy in writing?
If one quote is $200 cheaper but doesn’t mention chemical use, runoff control, or preexisting damage documentation, it’s not cheaper. It’s just missing pieces.
The question you should ask before signing
“If the results aren’t what we expect, what happens next, and what does that cost?”
If the answer gets slippery, the quote probably is too. If they answer cleanly, in writing, with boundaries and a touch-up plan, you’re dealing with someone who’s done this the right way before.