Reseal Concrete Patio or Walkway
Why It Matters
Sealed concrete resists water penetration, freeze-thaw damage, and staining, lasting decades longer than unsealed surfaces.
Quick Guide
- 1
Gather your tools and materials
You'll need: Pressure washer, Paint roller with extension pole. Materials required: Concrete sealer, Concrete cleaner.
- 2
Perform the reseal concrete patio or walkway
Clean and apply concrete sealer to outdoor patios and walkways to prevent cracking and staining. Safety note: Work in well-ventilated area.
- 3
Verify and clean up
Check that the work was completed correctly and clean up your workspace.
Tools & Materials
Tools
- Pressure washer
- Paint roller with extension pole
Materials
- Concrete sealer
- Concrete cleaner
Community Tips
Never apply concrete sealer to a wet surface or within 48 hours of rain, as trapped moisture will cause the sealer to blister, peel, and fail prematurely. Quartz-based sealers like Foundation Armor SX5000 ($35-50) are particularly sensitive to moisture and require bone-dry conditions for proper adhesion.
Pressure wash at 3000 PSI or lower to avoid pitting the concrete surface; excessive pressure creates micro-damage that allows water infiltration and accelerates future deterioration. Pre-treat stubborn stains with Zep Driveway & Concrete Cleaner ($12-18) 15 minutes before washing for superior dirt and oil removal without surface damage.
Concrete sealers require a second coat applied 4-6 hours after the first for maximum durability and stain resistance. Most homeowners underestimate coverage rates—a gallon of Sherwin-Williams Loxon Concrete & Garage Floor Coating ($25-35) typically covers only 150-200 square feet per coat, so measure your patio carefully and purchase extra to avoid mid-project shortages. ---