Deck Refinishing in the Denver Metro Area
Sealwize Denver West refinishes wood decks across the Denver Metro area.
We sand weathered boards back to clean wood, then seal them by hand with a premium, zero-VOC, mineral-based penetrating sealer—no oils, no petroleum, no odor.
Since 2009, we've refinished decks by hand and by brush, never with a sprayer. If your deck has gone gray, feels rough underfoot, or throws splinters, the finish has likely worn away, and the wood is taking weather with no protection.
The good news is that we can help restore most decks at a fraction of the cost of replacing your deck.
Most Gray Decks Don't Need Replacing
Gray is typically a surface condition. The sun breaks down the top layer of wood fibers, and rain and snow wash the dead material loose. Under that thin gray layer, the wood is usually sound.
But here's what happens when you call around. - Deck builders quote a rebuild, because rebuilds are what they sell. Painting companies quote a coat of stain over the weathered surface, which looks better for a season and then peels, because stain can't grip dead fibers.
Sanding is what actually fixes a gray deck: the failed layer comes off, clean wood comes up, and sealer can finally reach wood that will hold it.
When decks have rot in the framing or badly split posts, they can be beyond repair. If it is, we'll let you know at your estimate instead of selling you a refinish that won't last.
But here's what happens when you call around. - Deck builders quote a rebuild, because rebuilds are what they sell. Painting companies quote a coat of stain over the weathered surface, which looks better for a season and then peels, because stain can't grip dead fibers.
Sanding is what actually fixes a gray deck: the failed layer comes off, clean wood comes up, and sealer can finally reach wood that will hold it.
When decks have rot in the framing or badly split posts, they can be beyond repair. If it is, we'll let you know at your estimate instead of selling you a refinish that won't last.
How We Refinish Your Deck
Inspection and estimate
Done at your house
We check the boards, the framing, and the condition of any old finish, then hand you a written estimate.
Sanding to bring back clean wood
Prep for your deck
During sanding, the dead surface layer comes off. This helps your stain or seal last after it's applied.
Refinishing your deck
Smoothing surfaces
We make sure your deck is underfoot, no splinters, ready to take sealer evenly.
Brushing sealer by hand
Revitalize your deck
We apply a mineral-based penetrating sealer by hand across every board.
High-quality sealer with no VOCs
The product matters as much as the prep. We seal decks with a scientifically engineered, inorganic penetrating water repellent. It's solvent-free and super-hydrophobic: water beads and sheds instead of soaking into the boards.
Because it penetrates instead of forming a film, there's no coating on the surface to crack, cloud, or peel. It gives the wood dimensional stability, protects against decay, and is unaffected by UV exposure.
There's no oil and no petroleum in it, so there's nothing to discolor the wood, no fumes while we work, no odor after, and no oily residue.
It's non-toxic and harmless to kids, pets, and plants after it dries overnight. You don't have to clear the backyard for a week to get your deck sealed.
Because it penetrates instead of forming a film, there's no coating on the surface to crack, cloud, or peel. It gives the wood dimensional stability, protects against decay, and is unaffected by UV exposure.
There's no oil and no petroleum in it, so there's nothing to discolor the wood, no fumes while we work, no odor after, and no oily residue.
It's non-toxic and harmless to kids, pets, and plants after it dries overnight. You don't have to clear the backyard for a week to get your deck sealed.
Why we brush every deck
Most sealing failures start with a sprayer. Spraying is fast, which is why almost everyone does it. It lays sealer on top of the wood, where sun and moisture strip it away. A brush works sealer down into the grain, where it bonds and protects from inside the surface.
Brushing a whole deck by hand takes us longer, but we do it on every deck anyway, because the finish is the product. A sealer that penetrates outlasts a sealer that sits, and the difference shows up within a couple of Colorado winters.
Brushing a whole deck by hand takes us longer, but we do it on every deck anyway, because the finish is the product. A sealer that penetrates outlasts a sealer that sits, and the difference shows up within a couple of Colorado winters.
Denver Weather is Hard on Decks
A deck along the Front Range ages faster than the same deck almost anywhere else. At 5,400 feet the UV is stronger, and it cooks unprotected boards.
Freeze-thaw cycles drive moisture into the grain and pry it apart. Hail does its own damage. A south-facing deck takes the worst of it and can age roughly twice as fast as a shaded one.The sealing season is short here, too.
The wood needs to be dry and the temperatures steady. If your deck looked rough this summer, we'll help you have it ready for next year.
Freeze-thaw cycles drive moisture into the grain and pry it apart. Hail does its own damage. A south-facing deck takes the worst of it and can age roughly twice as fast as a shaded one.The sealing season is short here, too.
The wood needs to be dry and the temperatures steady. If your deck looked rough this summer, we'll help you have it ready for next year.
Why Colorado Homeowners Pick Sealwize
1
Local
We've been locally owned and operated in Littleton since 2009.
2
Happy customers
We have over 1,000 satisfied and repeat customers.
3
Integrity and quality
We've earned an A+ rating with the Better Business Bureau
4
Hand-brushed
We apply sealer by hand to make it last longer and eliminate overspray and messes.
5
Clear estimates
Our owner writes all estimates so you know how much your project will cost from the start.
Frequently Asked Questions
Do I need a new deck, or can mine be refinished?
If the structure is sound, refinishing is the better move. Gray, rough, splintering boards are a surface problem, and sanding fixes it. What refinishing can't fix is rot in the framing, badly split structural posts, or boards worn too thin. We check for all of that at the estimate. If the deck can't be saved, we'll tell you before you spend anything.
Is the sealer safe for kids, pets, and plants?
Yes. It's zero VOC and mineral-based, with no oils and no petroleum. Once it dries overnight, there's no oily residue after, and it's harmless to plants and animals.
What's the difference between staining and sealing a deck?
Stain is mostly about color. Sealer is about protection: it repels water and slows sun damage so the wood stops graying and splintering. Stain sprayed over weathered wood looks good for a season and then peels. We sand first, seal with a penetrating mineral-based product, and add a color tint if you want the stained look with real protection under it.
When is the best time to refinish a deck in Denver?
Late spring through early fall is most common, but whenever the weather cooperates. The wood needs to be dry and temperatures steady for the sealer to bond, and that window closes fast along the Front Range.
Why does brushing the sealer matter?
A brush works sealer into the wood grain, where it bonds and repels water from inside the surface. A sprayer lays it on top, where sun and moisture strip it off. Brushing takes longer and costs more labor, and it's the reason the finish lasts. It's also the reason so much of our business is repeat customers.
What does deck refinishing cost?
It depends on the size and condition of the deck, so we don't quote blind numbers.
Two things are always true: it costs a fraction of replacing the deck, and our estimates are free.
Two things are always true: it costs a fraction of replacing the deck, and our estimates are free.