Allied Redmond ConcreteAllied Redmond Concrete(425) 285-8289Request an estimate

Concrete Contractor in Sammamish, WA - Slabs That Sit Level and Drain

Allied Redmond Concrete is a Redmond concrete contractor pouring driveways, patios, garage floors and footings in Sammamish, WA. We dig out and pack the base and slope each slab so water runs away from your house.

Curving concrete sidewalk with scored panels winds through a shaded, landscaped yard toward a home.
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  • Free in-person estimates.
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Sammamish homes and the wet, wooded ground under them

Sammamish is mostly houses, and the calls we get here usually come from homeowners who want a driveway redone, a back patio poured or a garage floor replaced. The city has lakes and wetlands inside it, with Pine Lake Park on the shore of Pine Lake and the trails at Beaver Lake Preserve running out to Hazel Wolf Wetlands Preserve, so plenty of yards sit near trees, water and soft ground. We work next door in Issaquah and Union Hill-Novelty Hill too, and the jobs there look a lot like the ones here.

That ground shapes the job. A wooded lot usually means roots and loose soil to dig out before we can build a firm base, and a yard near wet ground needs each slab set so water runs off it and away from the house.

Broom-finished concrete driveway with rectangular panels and expansion joints beside a landscaped residential street.

Concrete work we do on Sammamish properties

  • Concrete driveway building

    Sammamish driveways often run a long way from the street to the garage, so we dig out the soft ground and pack a firm base before the pour.

  • Concrete patio construction

    A back patio here usually sits close to the house, so we set the slab to fall away from your foundation and keep water off the siding.

  • Stamped concrete services

    Stamped concrete gives a Sammamish patio or walkway the look of stone or brick in one pour, with the same packed base underneath as plain concrete.

  • Concrete sidewalk building

    We pour front walks and side paths around Sammamish homes that meet the driveway and steps flush, so nobody catches a toe on a lifted edge.

  • Garage floor concrete

    When a Sammamish garage slab has cracked or sunk, we break it out, rebuild the ground under it and pour a floor that sheds water toward the door.

  • Decorative concrete

    Colored and textured finishes suit a Sammamish front entry or a patio facing the trees, and we lay them over a base built as carefully as the top.

  • Concrete retaining walls

    Where a Sammamish yard steps down toward the street or a neighbor, a poured retaining wall holds the soil back so a patio or driveway can sit flat.

  • Concrete floor installation

    For a basement, shop or outbuilding on a Sammamish lot, we pour an interior slab with rebar inside, steel that keeps any crack from spreading apart.

  • Concrete pool decks

    A pool deck takes splashing and bare feet, so we give it a slip-resistant texture and slope it to drains or the lawn, not back toward the pool.

  • Concrete steps construction

    Front steps on a sloped Sammamish lot get heavy use, so we form each rise the same height and tie the steps to a solid footing.

  • Slab foundation building

    For a new garage, addition or shop, we pour a slab foundation on ground we've dug out and compacted, because the whole building rides on it.

  • Foundation installation

    We form and pour foundation walls for new homes and additions in Sammamish, setting them level and square so the framing that follows goes up straight.

  • Concrete parking lot building

    Small property owners call us for parking areas at shops and small apartment buildings, where the slab has to carry daily traffic and shed water fast.

  • Concrete footings

    Decks, posts and garden walls all need footings, the concrete underneath that carries the weight, poured to the right depth for the ground on your lot.

  • Foundation raising

    When part of a slab or foundation has settled and left a gap or a tilt, we lift it back toward level and fill the void underneath.

  • Concrete cutting

    We saw-cut old slabs for removal, cut openings for drains or doors, and cut grooves in new slabs so any cracking follows a straight line.

Get a free on-site concrete estimate in Sammamish

Send the form and we'll reply within one business day to set a time. I come out to look at the site myself, and the estimate is free with no obligation.

(425) 285-8289

Working in Sammamish: permits, licenses and timing

The City of Sammamish issues building permits here, and its Permit Center doesn't hand one out from a visit or a meeting, so applications go in online and your job date waits on the city's approval. If your job needs a permit, I'll tell you at the estimate, and we handle the application and the inspection requests. Before you hire anyone, check two things: a contractor license from the Washington State Department of Labor and Industries, which the city says every contractor working here must hold, and a city business license for contractors doing enough work inside city limits. We're licensed and insured.

We're based in Redmond, so Sammamish is a short drive for the truck and for me, and we do the same work in Bothell and plenty of other cities nearby. Price here mostly follows the size of the slab, how much digging and base work your ground needs and how close the truck can get down a long, tree-lined driveway. The schedule turns on the permit, if there is one, and on the city's grading season covered below, and your written quote puts each part of the job on its own line.

Curved stamped-concrete patio with a circular stone fire pit beside a fenced backyard.

Sunken driveways and patios here start with the base

Most of the sunken, cracked driveways and patios we look at in Sammamish have the same problem underneath, a base that was raked level and never dug out and packed, so it settled with the dirt and took the slab down with it. The base is the part you can't see on day one, and it's the first thing that gets cut when a budget is tight. I'd rather you skip a decorative border than skimp on the base, because you can add a finish later but you can't fix bad prep once the truck has left.

Pooling water is the other call we get. If nobody checked where the water runs before the pour, a slab can end up falling toward the house and sending water at the foundation, so we check the fall of your yard first and set each slab to carry water away.

How a concrete job runs when you call us in Sammamish

From your first call to the cleanup, here's what happens on your side, when it helps to be home and what you get in writing.

  1. Call us or send the form

    We get back to you and set a time for me to come out. You don't need measurements or a plan ready.

  2. I walk the site and measure

    I measure, check where the water runs and ask how you'll use the space, so it helps if you can be there. You then get a written quote with each part of the job on its own line, so you can see where the money goes.

  3. We schedule and handle permits

    Once you say go, we set a date, and if the job needs a permit we file it and the date follows the city's approval. Any digging also has to fit the season the city allows for grading.

  4. I run the job to cleanup

    Our crew digs out, packs the base, pours and finishes, and I'm on site running it from the prep to the cleanup. You don't have to be home on pour day as long as we can get the truck in, and we'll tell you when it's ready to walk on and drive on.

Questions about concrete contractors in Sammamish

(425) 285-8289
Do I need a permit to pour a concrete driveway or patio in Sammamish?

Some concrete jobs do, and the city's list doesn't name every patio or driveway, so we check yours at the estimate. The city's guidance says building and structural projects generally need a permit, along with new construction and repairs to existing structures, which puts footings and foundations on that side. You can also look your project up with the city's Project Guidance service.

Does a contractor from Redmond need a Sammamish business license?

Yes, once they do enough work inside city limits. The city says businesses that must register with the state need a city business license to work in Sammamish, unless they earn less than $4,000 a year in gross revenue from work in the city. Past that $4,000, the license comes through the Washington State Department of Revenue's Business Licensing Service.

What months can grading and site work happen in Sammamish?

For most areas, the city allows clearing and grading between May 1 and September 30. A city handout also says site work needs a clearing and grading permit or a site development permit unless the code exempts it, so we sort that out at the estimate and plan the dig-out inside that window when it applies.

How do I find out if my Sammamish lot is in a wetland or critical area?

Look your address up on the city's Sammamish Property Tool, an interactive map with a Sensitive Areas layer. It matters because the city says any work inside a critical area or its buffer always needs a permit, except on publicly owned land. If I'm not sure where your lot stands, I'll say so and find out before I quote.

How much does a concrete driveway cost in Sammamish?

It comes down to your driveway's size and what's under it, so your real number is the written quote after I've seen the site. The big moves are breaking out and hauling away an old slab, how much soft ground has to come out before the base goes in, and the finish, from a plain broom finish, the light texture that gives tires and shoes grip, to stamped or colored concrete. A permit, if your job needs one, gets its own line.

What causes a new concrete driveway to crack, and how do you stop it?

No slab is crack-proof, but most cracks come from three things we control: a weak base, joints cut late or not at all, and a pour in the midday heat. Control joints are grooves we cut on time so the slab cracks along a line we picked instead of across the middle. We pour early in the day and let the slab cure, the wait while it hardens, before anyone uses it, because rushing that leaves a weak, dusty top.

Redmond, WA

Start your Sammamish concrete quote today

Call (425) 285-8289 or send the form now, because a job that needs digging and a permit has to fit inside the city's grading season.