Concrete Patio Cost in Seattle: Materials, Labor, and Add-Ons
Last Updated: 5/3/2026Concrete patio cost in Seattle is one of the most common questions homeowners ask before requesting a bid. The answer depends on three things: how big the patio is, what finish you choose, and what extras (seat walls, drainage, footings) come with it. This guide breaks the budget into the same line items you will see on a written estimate, so you can compare bids apples to apples and avoid surprises during the pour.
What's in a concrete patio quote
| Line item | What it covers |
|---|---|
| Excavation and base prep | Sod removal, sub-grade compaction, gravel base. |
| Forms and reinforcement | Edge forms, mesh or fiber reinforcement. |
| Concrete and labor | Mix delivery, placement, and finishing. |
| Finish | Broom, exposed aggregate, stamped, stained, or polished. |
| Joints and sealer | Control joints cut at correct spacing, optional sealer coat. |
| Cleanup and haul-off | Removing forms, excess soil, and debris. |
Finish choices and how they change cost
A standard broom finish is the baseline for residential patios — durable, slip-resistant, and the most affordable option. Exposed aggregate adds a per-square-foot premium and a more textured look. Stamped concrete, which mimics flagstone, slate, brick, or wood plank, sits at the top of the typical residential range but is still meaningfully less than the equivalent in natural stone. If you are considering decorative work, our decorative concrete services page walks through the finish options, and the stamped concrete cost guide covers pattern-by-pattern pricing context.
Add-ons that change the budget
- Seat walls and planters: extend the slab into the third dimension, often with separate footings.
- Pergola or cover footings: thicker pads or piers for posts add structural concrete.
- Integral color: pigment added to the mix, priced by yard.
- Drainage: trench drains, French drains, or downspout tie-ins for sloped Seattle yards.
- Steps and risers: each step is its own pour with its own forms.
- Fire pit pad: a thicker, often colored pad to host a built-in fire feature.
Pacific Northwest factors
Three local realities affect Seattle patio pricing. First, sloped lots are common — most patios need either grading work or a stepped design, both of which add cost. Second, Seattle's wet climate makes drainage planning non-negotiable; expect a slope-to-daylight design or a tie-in to existing downspouts. Third, glacial till soil compacts well but can also trap water — quality base prep is the difference between a patio that lasts 30+ years and one that cracks in five. Don't shortcut the gravel base to save money on the bid.
How to compare patio bids
- Confirm slab thickness (4 inches is standard residential) and reinforcement (mesh, fiber, or rebar).
- Match finish specs exactly — "stamped" without a pattern name is not a complete spec.
- Check that drainage and slope are addressed in writing.
- Verify cleanup, haul-off, and dump fees are included.
- Ask about cure protection (plastic, blankets) for cool or rainy weather.
For full vetting, see our how to choose a concrete contractor guide and our broader concrete contractor cost in Seattle overview.
Frequently asked questions
What does a concrete patio cost in Seattle?
A standard broom-finish concrete patio in Seattle is typically priced per square foot, with rates rising for stamped, stained, or exposed-aggregate finishes. Total project cost depends on patio size, sub-base prep, finish choice, and any add-ons such as seat walls, footings for a pergola, or built-in fire features. Always request a written, itemized estimate.
Is a stamped concrete patio worth the upgrade?
Stamped concrete usually adds a meaningful per-square-foot premium over a broom finish, but it is still less expensive than natural stone or paver patios with comparable visual impact. For homeowners who want the look of slate or flagstone with a single monolithic slab, stamped concrete is often the best value.
What add-ons increase concrete patio cost the most?
The biggest cost adders are footings for a covered structure, integrated seat walls or planters, drainage trenches, decorative borders, and integral color. If your patio sits on poorly draining soil, a thicker base course and additional gravel are also common line items in Seattle.
How long does it take to install a concrete patio in Seattle?
Most residential patio projects take three to five working days from demo through finish, plus curing time before furniture loading. Weather can extend the schedule — heavy rain or temperatures below 40°F may push pours into the next dry window.
Do concrete patios need permits in Seattle?
Most ground-level patios in residential yards do not require a Seattle SDCI building permit, but covered patios, those near critical areas (steep slopes, wetlands), or those that change drainage may require review. Always confirm with your contractor before pouring.
Get an itemized concrete patio estimate
The only way to lock in real numbers is an on-site walk-through. Schedule a free written estimate — call (206) 552-9998 or browse concrete patio installation in Seattle for the full service description. Comparing patio finishes? See our patio design and installation post for finish-by-finish guidance.
