Concrete Patios & Slabs

Backyard living space, shop floors and pads that drain the right direction.

A patio is the cheapest square footage you will ever add to a house. It does not need framing, roofing or permits in most cases, and a well-poured slab turns an unusable strip of lawn into the part of the property where people actually spend their summer.

The two things that ruin a patio are water and movement. We set slopes so rain runs away from your siding, keep the slab below the siding line, isolate it from the foundation so the two can move independently, and joint it so shrinkage does not wander across the middle of your seating area.

Backyard & side-yard patios

From a small grill pad to a full outdoor living slab, laid out to fit the furniture you actually own.

Garage & shop floors

Level, hard-troweled or broom-finished slabs with vapor barrier and proper thickness for tools and vehicles.

Hot tub & equipment pads

Reinforced pads sized and thickened for the real loaded weight, not the empty weight.

RV & boat parking

Heavier slabs and wider aprons so you are not backing a trailer over grass every spring.

Pool decks & surrounds

Slip-resistant finishes and drainage that keeps water off the coping and out of the house.

Slab extensions

Adding to an existing patio with a clean joint and a matched finish.

Get a price on this

Free on-site measure, written itemized estimate, no pressure.

(360) 555-0142

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Hours: Mon–Fri 7:00 AM – 6:00 PM · Sat 8:00 AM – 2:00 PM

Getting the drainage right the first time

Every patio we pour gets a slope — typically 1/8 to 1/4 inch per foot — running away from the structure. We keep the finished surface at least a couple of inches below siding and door thresholds, install an expansion joint where the slab meets the foundation and, on flat lots that hold water, add a trench drain or channel before the concrete goes in rather than cutting one in later.

Around here that detail is the whole ballgame. A patio that sheds water stays clean and lasts decades; one that ponds grows moss by the second winter and pushes moisture into the crawlspace.

Finishes for a wet climate

Broom finish is the default for outdoor slabs because it stays grippy when it rains. Smooth steel-trowel finishes belong indoors — on a patio they turn into a slip hazard nine months a year. If you want something with more character we can do exposed aggregate, a salt finish, saw-cut patterns, a colored border, or full stamped concrete.

Sealing is optional but worthwhile on colored or decorative work. We use a breathable sealer, apply it after the slab has cured, and tell you honestly how often it needs redoing.

Layout advice before we pour

We will walk the yard with you and mark the outline with paint or string so you can see the real footprint before it is permanent. People routinely underestimate how much room a table and six chairs needs — 12 by 16 feet is a realistic minimum for a dining area, and a grill station wants another 6 feet beyond that.

If a future cover, pergola or outdoor kitchen is on the wish list, tell us now. Post footings and conduit sleeves cost almost nothing while the forms are open and a fortune once the slab is poured.

What patios & slabs cost in Marysville

Real planning ranges for our market — not a national average.

A plain broom-finished patio runs $9 to $15 per square foot installed. Shop and garage slabs sit at the same rate unless they need a thicker section, vapor barrier or a power-trowel finish.

WorkUnitTypical rangeWhat that includes
Patio slab, 4″ broom finishper sq ft$9 – $15compacted base, fiber or mesh
Garage / shop floorper sq ft$11 – $18vapor barrier, thickened edge, hard finish
Hot tub or equipment padper sq ft$14 – $226″ slab, heavier steel
Exposed aggregate finishadd-on per sq ft+$2 – $5great traction in the rain
Trench drain or channel drainper linear ft$60 – $120on flat lots that pond
Post sleeves for a future covereach$60 – $150cheap now, expensive later

Typical complete projects

Patio 12 × 16 ft (192 sq ft)

broom finish

$1,900 – $2,900

Patio 16 × 20 ft (320 sq ft)

broom finish + border

$3,200 – $5,000

Shop slab 24 × 24 ft (576 sq ft)

6″ with thickened edge

$7,500 – $12,500

Ranges are for planning, not a quote. Your price depends on access, base condition, demolition, thickness and finish — we confirm it in writing after a site visit.

From this kind of job

Photos from our own projects around Snohomish County.

Questions we get about patios & slabs

Four inches over compacted base handles foot traffic and furniture. Hot tubs, heavy planters or vehicle access push it to 5 or 6 inches with heavier reinforcement. We size it to the actual load.
Yes — with an expansion joint between the slab and the foundation and the finished surface kept below the siding line, so the two structures can move independently and water is not trapped against the wall.
Poured concrete costs less per square foot, has no weeds between joints and is far easier to clean; pavers can be lifted and reset if something settles. For large open areas in this climate we usually recommend concrete.
Most residential patios are a two to four day job from demo to pour, plus curing time before you load it up.

Ready for a straight answer and a firm price?

Send a photo of the area and a rough size — we’ll come out, measure and give you a written estimate at no charge.