How to Maintain Your Concrete Patio in the PNW

A concrete patio is a smart investment for homeowners in Bellevue, WA and throughout the Pacific Northwest. While concrete is durable, the region’s rain, moisture, and moss growth mean regular maintenance is key to keeping your patio looking great and lasting for years.

Here’s how to properly maintain your concrete patio in the PNW climate.

1. Clean Your Concrete Patio Regularly

Frequent rain and shade can cause moss, algae, and mildew to grow on concrete surfaces.

Best practices:

• Sweep away leaves and debris often

• Rinse with a hose as needed

• Use mild soap and a stiff broom for deeper cleaning

• Pressure wash once a year (avoid excessive pressure)

Regular cleaning helps prevent staining and surface damage.

2. Seal Your Concrete for Moisture Protection

Sealing your concrete patio helps protect it from water absorption, stains, and freeze-thaw damage.

How often to seal: Every 2–3 years, depending on exposure and usage.

Sealed concrete lasts longer and maintains its appearance, especially in wet climates like the Pacific Northwest.

3. Repair Small Cracks Early

Small cracks can expand when moisture freezes and thaws.

Watch for:

• Hairline cracks

• Uneven areas

• Standing water

Early concrete crack repair can prevent costly damage later.

4. Avoid Harsh De-Icing Chemicals

Many ice melts can damage concrete surfaces.

Avoid: Rock salt and calcium chloride
Use instead: Sand, kitty litter, or concrete-safe ice melt

5. Ensure Proper Drainage

Standing water shortens the lifespan of concrete patios.

Make sure:

• Water drains away from the patio

• Downspouts aren’t dumping water onto concrete

• Soil slopes away from the slab

Proper drainage is essential for long-term durability.

Maintain Your Concrete Patio with Local Experts like us!

With proper care, a concrete patio can last decades in the PNW. If you need concrete patio maintenance, sealing, or repair in Bellevue, WA or the surrounding Pacific Northwest, our team at Custom Concrete Northwest is here to help!

📍 Serving Bellevue & the Greater Pacific Northwest

📞 425-628-5942 | PO Box 53028 Bellevue, WA 98015

🌐 CustomConcreteNorthwest.com