Concrete Sealing by Legacy General Contractor
CONCRETE SEALING — PENETRATING & FILM-FORMING SEALERS FOR LASTING PROTECTION
Concrete sealing protects surfaces from freeze-thaw damage, water penetration, staining, and wear. We apply penetrating sealers (silane/siloxane) that absorb into the concrete for invisible protection, and film-forming sealers (acrylic, polyurethane, epoxy) that create a visible surface barrier with gloss or matte finish. All sealing includes thorough surface cleaning, degreasing, and proper application for maximum adhesion and longevity.
Starting at $2 per sq ft
Concrete Sealing Services
Select a service below for pricing, process details, and FAQs.
Penetrating Concrete Sealers
Silane, siloxane, and silicate sealers that penetrate into concrete to block moisture, salt, and freeze-thaw damage without changing appearance.
From $1 per sq ft
Learn MoreTopical Concrete Sealers
Acrylic, polyurethane, and epoxy surface sealers that form a protective film. Add sheen and enhance color of decorative concrete.
From $1 per sq ft
Learn MoreDecorative Concrete Sealers
High-performance sealers specifically formulated for stamped, stained, and decorative concrete. UV-stable, non-yellowing protection.
From $2 per sq ft
Learn More5 Highlights on Concrete Sealing
Penetrating sealers
silane/siloxane sealers absorb into concrete for invisible protection against water, salt, and freeze-thaw damage.
Film-forming sealers
acrylic, polyurethane, and epoxy sealers create a visible surface barrier with gloss or matte finish.
Residential sealing
protect driveways, patios, and garage floors from Minnesota's harsh winter conditions.
Commercial sealing
protect parking lots, warehouse floors, and industrial surfaces from chemicals, traffic, and weather.
Why Choose Our Concrete Sealing
We match the right sealer to the application. Driveways need different protection than interior floors or stamped patios.
Proper surface preparation is essential for sealer adhesion and penetration. We clean, degrease, and dry all surfaces before application.
We apply sealers at the correct coverage rate — too thick causes peeling, too thin doesn't protect. Our application rates follow manufacturer specifications.
Signs You Need Concrete Sealing
1. New concrete is 28+ days old
New concrete should be sealed after the initial 28-day cure period to protect against staining, water penetration, and freeze-thaw damage.
2. Existing sealer is worn off
When water no longer beads on the surface, the existing sealer has worn away and needs reapplication.
3. Concrete is showing salt damage
Surface scaling from de-icing salts indicates the concrete needs sealer protection against chemical penetration.
Our Concrete Sealing Process
Step 1 — Surface Cleaning
Pressure wash, degrease, and remove any existing failed sealer. Allow complete drying.
Step 2 — Crack Repair
Fill any cracks or voids before sealing to prevent water entry points.
Step 3 — Sealer Application
Apply sealer at manufacturer-specified coverage rate using sprayer, roller, or squeegee depending on product.
Step 4 — Cure & Protect
Allow sealer to cure per manufacturer instructions. Typically 24-48 hours before foot traffic, 72 hours before vehicle traffic.
Brands We Use
- Silane/Siloxane — penetrating sealers from Prosoco and Chemours
- SureCrete — film-forming sealers and decorative coatings
- W.R. Meadows — curing and sealing compounds
FAQs About Concrete Sealing
How often should concrete be sealed?
Penetrating sealers last 5-7 years. Film-forming sealers (acrylic, polyurethane) last 2-3 years on exterior surfaces. Interior sealers can last much longer. Climate exposure and traffic levels affect longevity.
Can I seal concrete myself?
While DIY sealing is possible, professional application ensures proper surface preparation, correct product selection, and accurate coverage rate — all of which significantly affect sealer performance and longevity.
Pricing
$2 - $6
per sq ft
*Varies by project scope and site conditions.
Related Services
Leave Concrete to the Pros
Because with Legacy General Services,
You Get More Than a Guarantee
When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
Reputation
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
Transparency
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
Efficiency
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Quality
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.