We're a concrete contractor based in Redmond, WA, pouring driveways, patios, walks, steps and retaining walls for houses across Sammamish. We spend more time on what goes under the slab than most people expect, because that's where old concrete usually went wrong.
(425) 285-8618
Most of what we pour in Sammamish goes on lots that aren't flat. Driveways run uphill or down from the street, back yards drop toward a ravine or a lake, and big trees sit right where a walk wants to go. That matters before anyone picks a finish, because water heads downhill whatever the drawings say, and an old slab that cracked or sank usually shows you where. Old concrete is honest that way. We're a short drive over from Redmond, and these are the jobs I like best, the ones that take a little figuring out.
Send the form or call (425) 285-8618, and we'll reply within one business day to set a time. I come out to your Sammamish house myself, look at the old concrete and where the water runs, and walk you through what the job involves. The estimate is free, and there's no obligation.
(425) 285-8618Most of our Sammamish calls are about driveways that climb from the street and have started sinking or cracking at the low end, and about back patios on yards that step down the hill. We also pour new concrete sidewalks and walks where an old path has heaved around tree roots. We fix steps that have pulled away from the house, and we build retaining walls where a slope needs holding back so a slab has flat ground to sit on.
The City of Sammamish issues building permits here, and the city says new construction and alterations to existing structures generally need one. Its list doesn't spell out driveways or patios, so I find out what your address and your project call for before we set a date, then tell you plainly who'll handle the permit and the inspections. On a lot of jobs the permit and the city's grading rules set the start date more than the pour itself does. While you're checking us out, the city says any contractor doing business here has to be licensed by the Washington State Department of Labor and Industries, and many also need a Sammamish business license.
What moves the price here is mostly the ground. That means how much old concrete comes out, how much digging and packing the subgrade needs on a slope, and how much shaping it takes to send water away from the house. The subgrade is the dirt and gravel the slab sits on. Size and finish matter too, and the estimate is where you get your own number. We do the same work in Issaquah and up in Bothell, and each city runs permits its own way, so we check the Sammamish rules for your address instead of going off the last job.
I come out for the estimate myself and spend most of it on the old concrete, looking at where it sank, where water sits and where it cracked. Our own crew then does the work with me running the job, so nothing we noticed gets lost before the pour.
The dug-out, packed base is hidden on day one, which is why it's the first thing people want to cut. We'd rather trim a fancy finish than skimp there, because a nice-looking slab on loose dirt settles and cracks right along with it.
We're licensed and insured, and we've been doing this since 2013. Before we start, you'll know what each part of the price pays for, from tear-out to base to finish. Your satisfaction, guaranteed. Call (425) 285-8618 or send the form to set up a visit.
Plan on the city having a say, because Sammamish generally requires a permit for new construction and generally requires a clearing and grading permit or a site development permit before site work. Any work inside a critical area or its buffer always needs a permit. You can check your own project with the city's Project Guidance service, and I'll tell you plainly who'll handle the permit and inspections before we set a date.
For most areas, the city allows clearing and grading between May 1 and September 30. That matters if your new driveway or patio needs real digging on a slope, so we look at the season along with the permit before we put you on the calendar.
Ask for their Washington contractor license, because the city says any contractor doing business here must be licensed by the state Department of Labor and Industries. A contractor who has to register with the state and earns more than $4,000 a year from work inside city limits also needs a Sammamish business license, which comes through the state Department of Revenue's Business Licensing Service. Below that amount, the city doesn't require one.
It comes down to size, thickness, tear-out and how much base work your lot needs, so we give you your figure after seeing the site. A stamped or colored surface costs more than a broom finish, which is the light texture that keeps a slab from getting slick. If the budget is tight, I'd trim the finish before the base, because nobody sees the base until it fails.
Most of the cracked slabs we tear out had a base that was raked level instead of dug out and packed, so they settled with the dirt, or had control joints cut late or skipped. Control joints are shallow cuts that give the slab a place to crack along a line we choose. New concrete can still get hairline cracks as it shrinks, but a packed base, rebar to hold the pieces together and joints cut on time keep it from sinking and splitting like the old one.
You can usually walk on it after a few days, but the car waits a good while longer while the concrete cures, which is the slow hardening it does after the pour. Driving on it early is how you get a weak, dusty top later. We'll tell you the days for your slab when we pour, and we plan the tear-out so you're without the driveway for as short a stretch as we can manage.
