Concrete Patio Design and Installation in Seattle

A concrete patio creates durable outdoor space for Seattle homes. From finish selection to drainage planning, a well-built patio can extend your usable season while staying easy to maintain.

Popular patio finishes

• Broom finish: a clean, slip-resistant surface that works well in wet weather.
• Exposed aggregate: adds texture and visual interest with stone blend.
• Stamped concrete: mimics stone or brick for a high-end look.
• Stained concrete: adds color while keeping a smooth profile.

See stamped concrete costs and patterns or explore decorative concrete services for design ideas.

Cost factors for patio installation

• Size and layout: larger patios and curves require more forming.
• Base prep: excavation, grading, and compaction impact labor.
• Access: tight yards can increase time and equipment needs.
• Finish selection: stamped or stained finishes take more time.

Maintenance and seasonal care

• Keep the surface clean to prevent moss or algae buildup.
• Seal the patio on schedule to protect against moisture.
• Manage drainage so water moves away from the slab.

Frequently asked questions

How much does a concrete patio cost in Seattle?

A standard broom-finish patio runs $8–$15 per square foot; exposed aggregate $10–$18; stamped concrete $14–$22. A typical 300-square-foot patio totals $2,400–$6,600. Add-ons (seat walls, footings, drainage features) increase the total.

What is the best finish for a Seattle patio?

Broom finish is the standard for cost and traction. Exposed aggregate handles moss better in shaded yards. Stamped concrete delivers the most visual impact but requires resealing every 2–3 years. Earth-tone integral color works in most PNW landscapes.

Do I need a permit for a backyard patio?

Most private backyard patios don't need a permit. Exceptions: patios that add significant impervious surface in a sensitive drainage area, patios in Environmentally Critical Areas, or work that involves grading near a steep slope or shoreline.

How long does patio installation take?

Most patios install in 3–5 days: demo and base prep on days 1–2, pour and finish on day 3, cure days 4–5. Walkable at 72 hours; full cure at 28 days. See the PNW curing guide for details.

How is drainage handled on a Seattle patio?

We slope the patio 2% minimum away from the house, set control joints every 8–10 feet, and install French drains or channel drains where natural drainage is inadequate. Drainage is designed before forming starts.

Plan a Seattle patio project

Explore concrete patio services and use our contractor checklist to compare bids.