Stamped Concrete in Portland, OR: Cost, Patterns & Care Guide

Stamped concrete gives you the look of slate, flagstone, brick or wood plank for less than most stone or paver installs. As a concrete contractor in Portland, AG General Contractor pours stamped patios, driveways, walkways and pool decks across the metro area. This guide covers cost, patterns, how it holds up in Oregon weather and how to keep it looking new.

What is stamped concrete?

Stamped concrete is regular poured concrete that is colored and pressed with texture mats while it is still workable. The crew adds integral color or a color hardener, then a release agent that leaves darker antique highlights in the grout lines. After it cures, control joints are cut and the surface is washed and sealed.

Popular patterns include ashlar slate, random stone, European fan, cobblestone, running-bond brick and wood plank. Many homeowners pair a stone field with a contrasting border for a custom look. Browse finished work in our project gallery.

How much does stamped concrete cost in Portland?

Typical Portland-area ranges; access, slope, demolition, pattern and number of colors change the final price.

What moves the price most:

• Pattern and color: one color with a simple pattern costs less than multi-color stone with hand-detailed edges.
• Size: small jobs cost more per square foot because setup and the truck minimum stay the same.
• Demo and base: tearing out an old slab or fixing soft clay soil adds labor and gravel.
• Access and drainage: tight backyards may need a pump; slopes may need drains or steps.
• Add-ons: borders, steps, seat walls and fire pits.

For full price breakdowns by project, see our concrete patio cost guide and concrete driveway cost guide.

Stamped vs. exposed aggregate vs. decorative concrete

“Decorative concrete” is the umbrella term for any finish beyond plain gray: stamped, exposed aggregate, stained, scored or polished. Here is how the three most-requested outdoor finishes compare.

• Choose stamped for patios, entertaining areas and front entries where looks matter most.
• Choose exposed aggregate for driveways, sloped walkways and steps where grip matters.
• Choose broom or colored for the lowest cost, or combine it with a stamped border.

Is stamped concrete a good idea in Portland’s climate?

Yes, if it is built and sealed for rain. Our long wet season brings moss, algae and slick surfaces, so the details matter.

• Add traction. Mix anti-slip grit into the sealer and choose a matte or satin sealer over high gloss.
• Slope it. At least 1/8 inch per foot away from the house so water never sits on the surface.
• Build a real base. Compacted gravel and reinforcement keep slabs from settling in Portland’s clay soil.
• Skip rock salt. Use sand or a concrete-safe deicer, especially during the first winter.

Where to use stamped concrete

• Patios: the most popular use. See our patio contractor services in Portland.
• Driveways and entries: a stamped border or apron adds curb appeal. See driveway installation in Portland.
• Walkways and steps: use a lighter texture and anti-slip sealer.
• Pool decks: choose a cool, light color and textured finish.
• Around fire pits and seat walls: pair it with a custom fire pit or a retaining wall for a full outdoor room.

How is stamped concrete installed?

1. Design: pick the pattern, base color and accent color, then mark the layout.
2. Excavation: remove soil or old concrete and compact a gravel base.
3. Forms and reinforcement: set forms, rebar or wire, and the drainage slope.
4. Pour and color: place the concrete and apply integral color or color hardener.
5. Stamp: press the texture mats while the concrete is workable.
6. Cure and cut: cut control joints and wash off the release agent.
7. Seal: apply sealer with anti-slip additive.

Light foot traffic is fine after 24–48 hours. Wait about 7 days for furniture and vehicles, and longer in cold weather. The best pour window in Portland is late spring through early fall, when we can count on a few dry days.

How do you maintain stamped concrete?

• Sweep and rinse regularly, and treat moss early with a mild cleaner.
• Reseal every 2–3 years, or as soon as water stops beading. Concrete Network puts the general range at 2–5 years depending on traffic and climate.
• Use plastic snow shovels and avoid rock salt.
• Fix cracks early; stamped surfaces are harder to patch invisibly. Worn or cracked slabs? Read fix, resurface or replace.

Do you need a permit for stamped concrete in Portland?

A ground-level patio on your own property usually does not need a building permit, but zoning rules can still apply. A driveway with a new or changed curb cut does need a permit. See Portland.gov outside work permits for details. We check permit needs before we quote.

Not sure who to hire? Use our checklist for hiring a concrete contractor in Portland.

Frequently Asked Questions

How much does stamped concrete cost per square foot in Portland?

Most projects run $14 to $25 per sq ft installed. Simple one-color patterns sit at the low end; multi-color stone patterns, borders and steps push toward the top.

Is stamped concrete slippery when wet?

It can be, especially with a glossy sealer. An anti-slip additive and a matte sealer give good grip in Portland rain.

How long does stamped concrete last?

25 years or more with a solid base, proper control joints and resealing every 2 to 3 years.

Is stamped concrete cheaper than pavers?

Usually. It costs less than most stone and paver installs and has no joints for weeds, but pavers are easier to repair one piece at a time.

Can you stamp existing concrete?

Not directly. A stamped overlay can go on sound concrete, but cracked or heaving slabs should be replaced first.