A deck wash has no single honest price, because two decks that look alike can be very different jobs. This guide covers the factors that set the price in Waterloo Region, the one published starting figure, and how to compare quotes fairly.
In This Article
The one published number, and what it means for a deck
D&D Home Services publishes a starting price of $350 for pressure washing on typical Kitchener-Waterloo homes. That is a starting point for the service, not a per-deck rate. The figure for your deck is set once the deck has been described or seen, and it is confirmed in writing before any work begins. Quotes are free.
Anyone who names a fixed price for "a deck" without asking questions is guessing. The factors below are what a careful estimator will ask about, and they are also what moves the number.
Eight things that move a deck quote up or down
| Factor | Pushes the quote up | Keeps it down |
|---|---|---|
| Size and shape | Large, multi-level or wraparound decks | A compact, single-level deck |
| Stairs and rails | Many spindles, lattice skirting, cap rails and steps | Open or glass rails and a short stair |
| Material | Aged, soft softwood that needs a gentle method, or composite that needs maker-approved care | Sound, newer boards |
| Condition | Black mould, thick algae, tannin stains and debris packed between boards | Light dust and pollen |
| Old finish | Peeling paint or solid stain that has to come off | Bare wood or a thin, sound stain |
| Access | No side gate, long hose runs, tight yards, upper-storey decks that mean ladder work | Open access and a tap nearby |
| Furniture and planters | A lot to move, cover and put back | A cleared deck |
| Extras | Brightening, sanding, staining and small repairs | Washing only |
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Wash only, wash and brighten, or a full refinish
People say "deck cleaning" and mean four different jobs. Ask which one the quote covers.
- Wash only: removes surface dirt, algae and grime. The wood keeps its weathered colour.
- Wash and brighten: adds a wood brightener to lift tannin and grey, so boards look fresher before staining.
- Strip and prep: takes off failing paint or solid stain, then dries and sands the wood so a new finish will grip.
- Full refinish: stain or sealer goes on last, with its own materials, labour and drying time.
Each step adds labour and often a second visit while the boards dry. A quote that stops at "wash" is not cheaper than one that includes staining. It is a smaller job.
Reading two quotes side by side
Put the quotes next to each other and work down this list. Every unanswered line is a place where two prices can differ without either being wrong.
- Method: wide-fan pressure, a low-pressure wash with cleaner, or both? One setting for every board means nobody looked at your deck.
- Products and protection: which cleaner, how plants are protected, and where the rinse water goes.
- Exclusions: brightening, sanding, staining, board replacement, stairs, rails and skirting.
- Cover: ask for proof of liability insurance, and whether workers are covered by WSIB.
- Timing: how long the wood needs to dry before it can be stained.
- Surprises: whether the price changes if rot or loose boards turn up.
A very low quote deserves a question, not a celebration. It may skip the brightener, assume one pressure for all wood, or leave out the stairs.
Keeping the cost sensible without risking the wood
- Clear the deck and move planters and furniture yourself if you can.
- Trim shrubs and vines along the edges so the crew can reach every board.
- Point out the outdoor tap and anything you want shielded from overspray, such as windows and garden beds.
- Ask whether adding a patio or walkway to the same visit changes the quote. Some work, such as set-up and travel, happens once per visit.
- Settle the finish plan before you book, so stain timing does not turn into a surprise second job.
When a wash is the wrong thing to pay for
Cleaning will not fix soft, spongy or cracked boards, or fasteners that are pulling out. Repair or replace those first. If the posts or the ledger board that ties the deck to the house look rotten, get a carpenter's opinion before anyone stands on it, because structure is a safety question.
For a written figure, request a free quote for pressure washing. Starting prices for every service are listed on the pricing page, and the method behind a careful deck wash is explained in how to pressure wash a wood deck without damaging the grain.
Key Takeaways
- D&D publishes pressure washing from $350 for typical Kitchener-Waterloo homes; your deck figure is set in a free written quote.
- Size, rails, wood type, condition, old finish and access move a deck price more than anything else.
- Ask whether the quote means wash only, wash and brighten, strip and prep, or a full refinish.
- Repair rot and loose boards before paying for a wash, and treat a very low quote as a question about what was left out.
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Select the service you need and describe the work area and access.