Cracked, flaking or sunken garage floor? We start with the ground underneath and the mix, so your new slab holds up.
Garage floor concrete in Post Falls means pouring a new or replacement slab on the ground inside your garage, with joints and reinforcement that help control cracking and add strength, so the floor holds up to cars, tools and winter.
Most calls start with a floor that's cracked across the middle, flaking where the car parks, or sunk so water pools by the drain or the back wall. The surface is just where it shows. The cause is usually underneath, in ground that was raked level instead of dug out and packed, so replacing it means breaking out the old slab, fixing the base and pouring new.
The price mostly moves with the size of the garage, whether old concrete has to come out, how much base work the ground needs and any finish on top, like the color and patterns on our decorative concrete page. The schedule turns on the weather and on the permit check we do with the building office for your address. When I come out, I put all of that into an estimate for your garage.
Call (208) 981-9070 or send the form, and we'll set a time for me to come see the garage. If the old floor is still in, leave it as it is, since the way it cracked tells me a lot about the ground under it.
I walk the garage with you, ask how you use it and what's underneath, and look at where the water goes when snow melts off the cars. Then I put together an estimate that lays out the base work, the concrete and the finish, so you can hold it up against anyone else's.
Once you're ready, we pick a pour day around the weather and the ground, and we file for any permit the office says our part of the job needs. When a Post Falls job has a city inspection, we have it ready that morning and leave our pour time, which the inspectors try to work within.
I'm on site with our crew from the pour through the finish, and we plan around midday heat, since a pour that bakes in the sun can leave a weak, dusty top. Before we go, I tell you how long curing, the wait while the concrete gains strength, should run before you walk on it or park on it.
I put the ground prep and the mix ahead of everything else. We dig out and pack the subgrade, the ground the slab sits on, instead of raking it level, and set it so water runs toward the door rather than pooling at the back wall. Reinforcement can be steel bars, welded wire or fibers in the mix, and fibers cut down on cracking without adding structural strength.
Usually within hours of the pour, depending on the temperature and the mix, we saw in the control joints, shallow cuts that give shrinkage cracks a planned place to form. One thing to ask any contractor is whether your garage needs a vapor retarder, a moisture layer under the slab. One supplier advises one under interior floors that may get covered later and calls it generally unnecessary for exterior slabs, so it comes down to how you'll use the garage.
What a garage floor job covers:
If the floor has a few hairline cracks and still sits flat, it can usually stay, and I'll tell you so. When it has sunk, broken into pieces that rock underfoot, or flaked across a wide area, the trouble is usually in the base or the mix, and patching the top won't reach it. That's when I'd break it out and start over, because a new surface over a bad base tends to fail the same way.
Size sets the starting point, then whether the old slab has to be broken out, how much base work the ground needs, the reinforcement and the finish. The base is the first thing people want to trim, because nobody sees it once the floor's in. I'd spend there and keep the top plain, since you can add a coating later but can't fix a bad base without tearing it out. A garage set into a slope may also need concrete retaining walls.
I started Post Falls Concrete in 2020 after teaching myself on my own projects and learning the rest beside crews who'd been at it for years. What stuck with me is that the part nobody sees, the ground underneath and where the water goes, decides how a floor holds up, so that's where I spend my time explaining.
We keep the mess to the work area, look after what's around the garage and tell you before anything about the plan changes. I want you to know your job well enough to ask good questions, of us or anybody else you're talking to. Every job is backed by our satisfaction guarantee.
Call early so we can get the permit check started and pick a pour day that suits the weather and your schedule.
Send the garage size, whether it's new or a replacement, and your hoped-for season. We reply within one business day to set up my visit, and the estimate is free with no obligation.
A well-prepared base and air-entrained concrete are what make a garage floor last. Slab guidance says a floor on poor ground is far more likely to fail no matter how much steel is in it, and one concrete industry guide calls air-entrained concrete, a mix with tiny air bubbles that give freezing water room, a must to prevent scaling, the flaking you see on old floors. When you compare quotes, ask each crew how they get the ground ready and whether their mix is air-entrained.
The cost of a new garage floor in Post Falls comes down to your own garage, so I price it on site once I've seen the size, the old slab and what's under it. Tearing out an old floor and extra base work are what usually push it up, as covered above. Call (208) 981-9070 and I'll come take a look.
Yes, concrete poured in cold weather still gains the strength and durability it needs when it's properly mixed, placed and protected. Cold-weather guidance counts conditions as cold when the air drops to 40°F, or is expected to go below it, while the new concrete still needs shielding, which covers a good part of the year here. If you're hoping for a cool-season pour, ask how the crew will protect it, and I'll walk you through how we'd protect yours.
Salt is the thing to watch that first winter, because one concrete guide warns that even salt dripping off your car can badly scale a fresh garage slab, and that light salting can do more harm than heavy. The same guide recommends a commercial sealer made for slabs on the ground once the concrete is fairly dry, ideally in late summer after curing and at least a month of drying. That's the warning I give everyone before their first winter on a new floor.
The City of Post Falls Building Division issues permits and handles plan review and inspections for new construction and for existing homes. Before we schedule your floor, we check with the building office that covers your address about what the job may need.
Yes, Idaho's licensing division requires anyone who takes a construction job over $2,000 in materials and labor to register, unless they're exempt, and owners doing their own work on their own land with no plan to sell within 12 months are exempt. A general contractor also has to give you a disclosure statement before a contract over $2,000 to build, alter or repair improvements on your home, and keep a receipt you sign. We're licensed and insured, so ask us, or anyone else you're talking to, about both.
We pour garage floors in Post Falls and the cities around it, including Coeur d'Alene and Spokane Valley. Pick your area below, or call if yours isn't listed.
