

Sealing isn't optional in Washington. With regular freeze-thaw cycles and 150+ rain days per year, deicing salt every winter, and humidity all summer, unsealed concrete absorbs water, freezes, and spalls. We apply silane and siloxane penetrating sealers that bond inside the concrete (not just on top), repelling water and salts while letting the slab breathe.
Beyond surface sealing, we also handle joint and crack sealing with polyurea sealants that flex with the slab through every freeze-thaw cycle. For below-grade concrete (basement walls, retaining structures, foundations), we apply membrane and bentonite waterproofing systems. The goal in every case is the same: keep water out of the concrete and out of structural failure pathways. Call us at (206) 555-0182 for a free, written estimate.
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Real numbers we use to bid sealing & waterproofing jobs every week. Final quote depends on access, scope, and finish choices.

Flat-rate pricing in Seattle, WA.
Starting at:

Flat-rate pricing in Seattle, WA.
Starting at:

Flat-rate pricing in Seattle, WA.
Starting at:
Reliable concrete work, transparent pricing, and crews that finish the way you'd want it on your own house.

$2M general liability, workers' comp, and ROW registered.

No surprise add-ons or post-quote fees. Written estimates.

Workmanship warranty in writing on every pour.

W-2 employees from Seattle—no out-of-town subs.

City of Seattle permits and ADA standards on every job.
Honest answers from a hands-on concrete crew.
Penetrating sealers last 5–7 years on residential walks and driveways. Acrylic sealers on stamped or decorative concrete look best when refreshed every 2–3 years. We can put you on a reminder schedule.
Penetrating sealers (silane/siloxane) don't change appearance—they soak in invisibly. Acrylic sealers add a wet-look color depth that brings out integral color and aggregate. We bring samples so you can see both before deciding.
Penetrating sealer can be applied over old penetrating sealer with no prep. Acrylic over acrylic needs to be cleaned and lightly etched first. Old solvent-based over water-based (or vice versa) usually requires a full strip.
Sealing prevents the worst of it—water absorption and resulting spalling—but no sealer is perfect. We pair sealing with proper drainage and joint maintenance for the best long-term result.
Pair your project with these commonly bundled services from Seattle, WA.
Free written estimates throughout Seattle, WA and Greater Seattle.
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