Concrete Patio Resealing in Denver: When It's Due and What It Costs
A concrete patio that has gone dull, white, or chalky usually needs one thing: a new coat of sealer. Resealing restores the color and protection for a fraction of what tearing out and repouring costs.
Sealwize Denver West has resealed stamped and flat concrete patios across the Denver metro since 2009.
We're here to help you know how to tell when your patio is due, what the work involves, and what it costs compared to replacement.
How do you know a concrete patio needs resealing?
The sealer tells you before the concrete does.
Look for these signs:
he concrete itself is almost always fine. Catch it at this stage and resealing is all you need.
Look for these signs:
- The color has gone flat. Stamped concrete that used to look rich reads dull and washed out.
- A white or chalky haze. The old sealer is breaking down and losing its clarity.
- Water soaks in instead of beading. Splash some water on the surface. If it darkens the concrete instead of sitting on top, the protection is gone.
- The surface looks gray and tired even after you hose it off.
he concrete itself is almost always fine. Catch it at this stage and resealing is all you need.
Reseal or replace? Run the math first
Plenty of homeowners see a chalky patio and start pricing replacement. Look at the numbers before you do.
New stamped concrete in the Denver metro runs roughly $12 to $22 per square foot installed, according to figures published by local concrete contractors. Industry cost guides like Angi put professional resealing at about $1 to $3 per square foot.
On a typical 300-square-foot patio, that's the difference between a four- or five-figure teardown and a few hundred to roughly a thousand dollars of maintenance.
If the concrete is structurally sound, no deep spalling, no heaving, no structural cracks, resealing gets you the restored look for 10% of the cost or less. If it isn't sound, we'll tell you that at the estimate instead of sealing over a problem.
New stamped concrete in the Denver metro runs roughly $12 to $22 per square foot installed, according to figures published by local concrete contractors. Industry cost guides like Angi put professional resealing at about $1 to $3 per square foot.
On a typical 300-square-foot patio, that's the difference between a four- or five-figure teardown and a few hundred to roughly a thousand dollars of maintenance.
If the concrete is structurally sound, no deep spalling, no heaving, no structural cracks, resealing gets you the restored look for 10% of the cost or less. If it isn't sound, we'll tell you that at the estimate instead of sealing over a problem.
What does patio resealing cost?
We give you an honest answer in an in-person estimate, not a guess, because the price depends on square footage, the condition of the old sealer, and whether the patio is stamped or flat.
Most patios we reseal run between $500 and $1,000, but the price varies based on size, walkways, and the condition of your concrete patio.
Most patios we reseal run between $500 and $1,000, but the price varies based on size, walkways, and the condition of your concrete patio.
What happens when we reseal a patio
Assessment
Done at your house
We check the condition of the old sealer and the concrete under it, then hand you a written estimate.
Prep
We get the surface ready
The surface has to be clean and dry for the new sealer to bond. Prep is where reseal jobs are won or lost.
Application
Smoothing surfaces
Stamped patios get a high-end solvent-based sealer. Flat patios get a penetrating mineral-based sealer.
Optional added traction
Good for steps and hot tub areas
We can add extra traction into the sealer for grip when the surface is wet.
How often does a patio need resealing in Colorado?
Sooner than in milder climates. Freeze-thaw cycles pry at the surface all winter, and the UV at this altitude breaks sealers down faster than the product labels assume.
Industry guidance for stamped concrete generally lands around every two to three years, but sun exposure, shade, and traffic all move that number.
When we look at your patio, we'll tell you honestly where it is in its cycle, including when the answer is "you don't need us yet."
Industry guidance for stamped concrete generally lands around every two to three years, but sun exposure, shade, and traffic all move that number.
When we look at your patio, we'll tell you honestly where it is in its cycle, including when the answer is "you don't need us yet."
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.
Common questions about patio resealing
Can I just pressure wash the patio instead?
Washing removes dirt. It doesn't put protection back. A clean, unsealed patio still drinks water, and water plus a Colorado freeze is what breaks concrete down. Wash it, then seal it.
When is the best time to reseal in Denver?
Late spring through early fall, while surfaces are dry and temperatures are steady. Fall pays off fastest, because the patio goes into freeze-thaw season protected.
Will resealing fix cracks?
No, and be careful of anyone who says otherwise. Sealer protects sound concrete; it doesn't repair damaged concrete. Hairline surface crazing is normal and seals over fine. Structural cracks, heaving, or deep spalling need a concrete repair contractor first. We'll tell you which you have at the estimate.
Will the patio be slippery afterward?
Glossy sealers can get slick when wet, so we offer a non-skid additive on request. Ask for it and the finished surface grips even in the rain.
Can I reseal a patio myself?
You can. Homeowners who do usually run into two problems: prep that isn't thorough enough for the sealer to bond, and roller or sprayer application that leaves a thin film sitting on top of the texture. That's why so many DIY reseals fail in a season. We brush by hand because it's the difference between a coat that bonds and a coat that peels.
Can you reseal a concrete patio in winter?
If there's a warmer week during the wintertime, we can still reseal your patio during the "offseason."