Strip, sand and recoat Semi-transparent to solid Free written quotes

Deck Staining and Refinishing in Ottawa

Deck Builders Experts strips, sands and recoats wood decks across Ottawa, from a one-season freshen-up to a deck nobody has touched in a decade.

A finish does not fail all at once. It goes on the rail caps first, then the stair treads, then the field boards. By the time the grey shows through from the kitchen window the wood has already been drinking for a season. We get the old coating off properly before anything new goes down, because a fresh coat over a failed one peels twice as fast.

Old coating removed, not coated over

Boards sanded flat before finish goes on

Railings, stairs and fascia included

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Tell us the deck size and roughly when it was last finished.

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The test you can run today

Water Stops Beading Before the Deck Looks Bad

Pour a cup of water onto a board on the sunny side of your deck. If it sits up in beads, the finish is still shedding water and you have another season in it. If it darkens the wood and soaks in within a minute, the film is done, whatever the colour still looks like from the house. Most Ottawa wood decks want a coat every two to three years. A south or west-facing deck burns through sooner because it takes hours of direct afternoon sun plus the heat coming back off the boards, and a shaded north-facing deck stretches longer. Grey boards are not the first sign, they are a late one. Once the surface has gone silver the top layer of wood fibre has opened up, and that is the point where sanding stops being cosmetic and becomes structural prep.

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Deck Stripping, Sanding, or Both

Two different jobs. Which one your deck needs comes down to what is still stuck to the wood.

Stripping a failed film

Solid stains and older sealers build a film on top of the board. Once that film cracks and lifts, a chemical stripper and a low-pressure rinse take it off. Coating over it just seals the peeling in and buys you eighteen months.

Sanding to reopen the grain

Penetrating semi-transparent finishes soak into the wood rather than sitting on it. Those decks usually want sanding rather than stripping, to knock down the raised fuzz and open the grain so the new coat can get into the board.

Both, on most older decks

A deck coated by three owners with three different products needs a strip followed by a sand. It is the slower path and it is the one that stops the new finish lifting in a year.

Board and fastener triage first

Popped screws get reset into fresh bite, split boards get flagged, and anything soft enough to take a screwdriver point gets replaced before finish goes near it. Stain does not fix rot, it hides it for a summer.

Railings, stairs and fascia in scope

The rail cap takes more sun than any other surface on the deck and the stair treads take the most traffic. Both go in the quote, because those are the parts that fail first and they are the parts people touch.

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Deck Stain Types: Semi-Transparent, Semi-Solid and Solid

Opacity is the real decision. It sets how the deck looks, how long the coat lasts, and what the next refinish costs you.

Semi-transparent

Soaks in, shows the grain, and weathers by fading rather than peeling. The shortest cycle of the three and the easiest to recoat, because there is no film to strip off first.

Semi-solid

More pigment means more UV protection and a longer interval, with some grain still reading through. A sensible middle on a deck with mixed board colour after repairs.

Solid

Most pigment, longest interval, and it hides mismatched boards completely. It builds a film, so when it eventually goes it peels, and the refinish after that is a strip rather than a recoat.

Exposure sets the schedule

South and West Facing Decks Burn Through First

Two decks on the same street, finished the same week with the same product, will not come due at the same time. The one facing south or west takes the afternoon sun, and ultraviolet is what breaks down the binder holding a finish together. That deck is often ready a full season ahead of a north-facing one. The other half of it is the Ottawa humidity swing. Wood decks take on moisture through a humid summer and give it back in a dry heated winter, and that seasonal movement works at any film sitting on the surface. So we do not schedule a refinish off a calendar date. We look at three places: the rail caps, the stair treads, and the boards closest to the house. Those tell you where the deck actually is.

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Our Process

How a Refinish Week Runs

1

Walk the deck together

We find where the finish has failed, locate soft boards and popped fasteners, and settle opacity and colour before anything is ordered.

2

Strip, sand, or both

Old film comes off, the surface gets sanded flat, then the deck is rinsed and left to dry down to the moisture content the finish needs.

3

Repairs before finish

Split boards swapped, screws reset, rail joints tightened. Anything structural we uncover gets written up rather than painted over.

4

Coats on, in the right weather

Finish goes down when the boards are dry through and the forecast holds. Railings and stairs are done in the same pass, then we walk it with you.

Refinishing Clients

Feedback shared directly with us by clients.

The team repaired and reinforced our existing deck, replaced the damaged boards, and improved the stairs. They worked efficiently and cleaned the entire area before leaving.

Excellent experience from the initial estimate to the final inspection. The builders paid close attention to every detail and kept us updated throughout the project. I would recommend them to other Ottawa homeowners.

We hired Deck Builders Experts to replace our old wooden deck. They explained our material options clearly and helped us choose a design that suited our home and budget. We are very happy with the result.

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Deck Stain Questions From Ottawa Homeowners

Can you finish a deck that has never been coated?

Yes, and new pressure-treated lumber is the one case where waiting helps. Fresh treated stock carries moisture from the treatment process and will not accept a finish until it has dried down, which in Ottawa usually means a season on the deck. Cedar and kiln-dried treated boards can be finished right away after a light sand to cut the mill glaze.

Will stripping damage my deck boards?

Not when the product and the rinse pressure are matched to the wood. What wrecks boards is a pressure washer held too close, which cuts the soft spring growth out of the grain and leaves a furry, striped surface that then needs heavy sanding to recover. We strip chemically and rinse at low pressure, then sand, rather than trying to blast a coating off.

What time of year can a deck be stained in Ottawa?

Late spring through early fall, with the exact window set by moisture rather than the calendar. The boards need to be dry through and not just dry on top, and overnight temperatures have to stay above the product minimum. Spring melt and late fall damp both work against that, so the practical season runs from about the end of May into September.

Can I go from a dark solid stain back to a lighter colour?

Yes, but it is a strip and sand job rather than a recoat, and the result is honest rather than perfect. Dark pigment sinks into open grain and into every screw hole, so expect some residual tone. Going lighter usually means landing on a semi-solid rather than a true semi-transparent, because there is not enough clean wood left to show off.

Do you refinish composite decking?

No, and nobody should. Capped composite cannot be sanded or coated. Anything you put on it sits on the cap and eventually flakes off in patches. A composite deck that looks tired needs cleaning, and a board that is gouged gets swapped for a new one.

How long does the deck have to stay off-limits afterwards?

That is set by the product and the weather, not by us. Plan on staying off the boards overnight after the final coat, keeping furniture and planters off for longer than that, and keeping dogs off until the surface is hard rather than just dry to the touch. We give you the specific times for the product going on your deck.