Deck Staining and Sealing in Rockford and the Northwest Metro

Why horizontal surfaces fail first

Stand on a deck in July and you can feel why. The boards face straight up at the sun for the whole day, so they take more UV than any wall on the house, and UV is what breaks down the finish and grays the wood. Rain and snowmelt sit on a flat board instead of running off, so water soaks in through the cracks, freezes, and opens the grain a little more each winter. Then there is foot traffic, grills, planters and furniture legs, none of which a siding board ever deals with. The railings and spindles on the same deck, which are vertical, often look fine when the floor has gone gray and rough. That is why we treat the two differently. The deck boards get the heaviest prep and the most durable penetrating product we can use, and the railings get a lighter touch, and we tell you the floor will need a coat before the rails do. Stairs and the top rail take the most wear of all and often need the most work.

• Deck boards: full sun, standing water, foot traffic, shortest life
• Railings and spindles: vertical, shed water, last longer
• Stair treads and top rail: most wear, first to need a coat

Stripping failed film stains

The decks we get called about most are the ones somebody coated with a thick film product a few years ago, the kind sold as a deck restoration coating or a solid deck paint. Those products fill the cracks and look great the first summer, then the water gets under the film, freezes, and the coating lifts in sheets, taking the top layer of wood with it. Once a deck has a failing film on it, the only fix is to strip it. We use a chemical stripper made for the job, let it work, and pressure wash at a pressure that lifts the coating without furring the wood. Stubborn spots get a second application or a sander. Then a brightener neutralizes the stripper and brings the wood back to its natural color. It is slow work, and it is the reason a deck with a failed film costs more to restain than a deck that was left to gray. We will tell you before we start if your deck is a strip job, and we will not put a penetrating stain over a film that is still stuck, because it will not soak in.

Oil versus waterborne penetrating stains

Once the wood is clean and dry, the choice is between an oil-based penetrating stain and a waterborne penetrating stain, and both have a place. Oil soaks deepest, brings out the color in cedar, and is forgiving to apply on hot days. It also feeds mildew if the deck is shaded and stays damp, and it needs recoating more often. Waterborne penetrating stains have improved a lot, hold color longer against UV, resist mildew better, and clean up easier, but they are fussier about application temperature and a wet edge, and they can look a little flatter on cedar. We lean toward oil on a cedar deck in full sun and waterborne on a treated deck under trees, but the real answer comes from looking at your deck. Either way it is a penetrating product, not a film, and either way it goes on with a pad applicator and is back-brushed along the boards so it soaks in evenly without puddling in the gaps.

• Oil: deepest penetration, richest color on cedar, shorter cycle, feeds mildew in shade
• Waterborne: better UV and mildew resistance, longer color, fussier to apply
• Both applied by pad and back-brushed, never a film

Annual to three-year cadence, and when to rebuild instead

Here is the part most deck stain ads leave out. A deck floor in the northwest metro needs a coat somewhere between every year and every three years. A cedar deck facing south with no shade is at the short end. A treated deck on the north side of the house under a maple is closer to three. Railings go longer. There is no product that turns that into a ten-year cycle on a horizontal surface in this climate, and a product that claims to is usually a film that will peel. The good news is that a maintenance coat on a deck that was done right is a small job: a wash, a dry day, one coat. Some decks are past that point. Boards that are cupped, splitting through, or soft at the ends, joists that flex, ledger boards pulling away from the house, and railings you would not lean on are structural problems, and stain does not fix structure. Because we are licensed for the carpentry, we can replace a few boards as part of a stain job, or, when it is most of the deck, quote a rebuild. Our deck design and rebuild page shows a full before-and-after we did with composite decking and black railing. Sometimes that is the honest answer.

What you get

• Failed film coatings stripped, not stained over
• Cleaner and brightener on every deck so the stain reads true
• Moisture checked before the first coat, no staining wet boards
• Penetrating oil or waterborne stain chosen for your deck's sun and shade
• Bad boards replaced by our own crew under our contractor license
• Straight talk about the recoat cycle and whether the deck is worth staining

How it goes

1. Walkthrough and written estimate

   We check the boards, the frame, the ledger and the railings, figure out whether there is a film to strip, and leave a written estimate that separates staining from any board replacement.

2. Strip, clean and brighten

   Failed film gets stripped chemically and washed off. Every deck then gets a wood cleaner to lift gray fibers and mildew and a brightener to neutralize and restore the color.

3. Dry, then stain

   We wait for the boards to read dry on the meter, then apply a penetrating stain by pad, back-brushed along each board so it soaks in evenly without puddling in the gaps.

4. Railings, stairs and walkthrough

   Railings, spindles and stair treads get their coat, and we walk the deck with you. We note the product used and the recoat cycle so the next visit is a quick one.

What does deck staining cost in the northwest metro?

Deck staining is priced from the walkthrough, and the biggest swing is whether there is a failed film to strip. A gray, never-coated deck that needs cleaner, brightener and stain is the simpler job. A deck under a peeling restoration coating needs stripping first, which can double the prep time. After that it is size, railing length, stairs and the number of levels, since railings and spindles are slow, fiddly work compared to open floor. Product choice moves it a little. Board replacement is always its own line item, done by our crew, so there is no second contractor. And a deck we stained a couple of years ago that just needs a maintenance coat is a much smaller job than a first-time restoration, which is the reason to stay on the cycle. The estimate is written and the walkthrough costs nothing.

• Deck square footage and number of levels
• Whether a failed film coating has to be stripped
• Linear feet of railing, spindle count and stairs
• Condition: never coated, recently stained, or years of neglect
• Oil or waterborne penetrating stain and number of coats
• Board or railing replacement, quoted separately