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Lewiston Concrete
Large exposed-aggregate concrete patio beside a pool, with a low stone counter and lounge chairs in a fenced backyard.

Concrete floor installation in Lewiston ID - a floor ready for what goes on top

Need a new slab floor and worried about cracks or moisture under your flooring? We plan the base, joints and curing so it holds up.

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Tell us what your floor is for

Call (208) 848-5044 or send the form, because a bare shop floor and a slab that gets flooring on top are built differently underneath.

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What goes into a new concrete floor in Lewiston?

Concrete floor installation in Lewiston means we place a new slab, then finish it, cut the joints and cure it, so you end up with a sound floor and a solid base for any flooring or coating that goes on top.

Most floors I'm asked about go into a shop, an addition or an outbuilding, and the first two questions are usually what it'll cost and whether it'll crack like the old one did. The price moves with the size and thickness of the slab, how much digging and packing the subgrade needs, which is the ground the slab sits on, the reinforcement, whether a moisture layer goes underneath and how close we can get the truck. The schedule turns on the permit question, the weather on pour day and the curing wait before you can use the floor, and you'll get your own figure once I've seen the site. If the new floor leaves a door sitting high, we can price concrete steps in the same visit.

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Why Lewiston homeowners call Lewiston Concrete for new floors

  • The owner comes out himself

    I look at your site and write the estimate myself, then I'm on site running the crew when we form, pour and finish. You deal with the same person from the first visit to the last pass of the trowel.

  • Slab work since 2017

    I started this business in 2017 after learning on other people's job sites, and we're known for flatwork where the base gets as much care as the finish. On a floor, the part you can't see decides how it holds up.

  • Licensed and insured in Idaho

    Idaho's licensing division applies its contractor rules to anyone taking a construction job over $2000.00 in materials and labor. We're licensed and insured, which is worth checking with anyone you hire for a floor.

Concrete only gets one shot, so tell me about your floor and I'll come out and take a look.

How we handle concrete floor installation

On a new floor, the timing of finishing, jointing and curing makes the result, so I plan each step around the pour instead of letting the day decide it. If flooring or a coating is going on top, we settle what goes under the slab before anything is placed. Then we dig out and pack the base so it won't settle with the dirt, set the forms, place the rebar, the steel that holds the slab together, and pour when the weather lets us, not in the midday heat that leaves a weak, dusty top. Once it's finished, we cut control joints, shallow saw lines that give the concrete a planned place to crack, before the slab picks its own spots, and we cure it, keeping it moist and protected so it gains its strength. If the budget gets tight, I'd rather you skip a fancy finish than shortcut the base, because the base is buried on day one and you can't go back and fix it.

A floor is often one piece of a bigger project. We build concrete steps so you can get in and out of a raised addition or shop, and if there's a pool going in, the concrete pool deck around it is the same careful flatwork with drainage planned from the start.

  • Floors that get flooring or a coating

    This suits finished rooms, basements and additions where tile, wood, carpet or an epoxy coating goes on top. The moisture layer and a flat, even surface matter most here, so we plan both before the pour.

  • Bare working floors

    This suits shops, storage buildings and outbuildings where the concrete is the finished surface. A smooth troweled top sweeps clean, and the joints and curing carry more weight because nothing covers the slab.

How do you know it's time for a new concrete floor?

  • Cracks that keep widening

    Hairline cracks are normal, but cracks that open wider or step up on one side usually mean the base has moved. Waiting lets water in and the break keeps spreading.

  • Low spots and rocking slabs

    A floor that dips or shifts underfoot usually sits on dirt that was raked level and never packed. The longer it goes, the more it cracks around the low spot.

  • Flooring that won't stay down

    Tile that pops loose, glue that lets go or a musty smell often points to moisture coming up through the slab. New flooring over it usually fails the same way.

  • A dusty, flaking top

    A surface that powders or chips usually came from a pour in the heat or curing that got rushed. Coatings won't hold on it, so patching rarely lasts long.

What happens when you call about a new floor in Lewiston?

  1. Call and set up a visit

    I come out, look at the site and hear what the floor is for. Then you get a written estimate spelling out the prep, the mix and the joint layout.

  2. Sort permits, then pour

    Once you're ready, we sort out the permit question and pick a pour date with the weather in mind. I run the crew through the base, forms, pour and finishing.

  3. Joint, cure and hand over

    I stay with the job through jointing and curing, since that timing decides the floor. At the end we tell you when it's ready for foot traffic and for its covering.

Questions about new concrete floors

These are the questions I hear most when someone's planning a new floor. If yours isn't here, call or send the form and I'll answer it for your job.

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How do I keep a new concrete floor from cracking?

You can't make a floor completely crack-free, but you can control where it cracks and keep those cracks small. The industry's floor guide says even the best design and construction won't give you a floor with no cracks, so judge bids on how the floor gets built, not on a promise of a perfect slab. Your satisfaction, guaranteed, and part of that is telling you this before you sign.

Does rebar stop a concrete slab from cracking?

No, reinforcement won't stop a slab from cracking, but steel that's the right size and in the right spot should keep the cracks that do form tightly closed. When you compare bids, ask each contractor how they size and place it, because that's what decides whether cracks stay tight.

Do I need a permit for a concrete floor in Lewiston, ID?

The City of Lewiston requires a permit whenever a building or structure covered by its code is built, altered, improved or repaired, so ask before you pour. The city's building office will talk your project through by phone, email or in person and tell you whether a permit or plan review is needed, and Nez Perce County's planning and building department issues building permits for the county, so the city office can help you settle which one covers your address. We check with that office before work starts and tell you what they said, and if a permit is needed we handle the application and work through the inspections with you, which in Lewiston come with the permit and end with a certificate or letter of completion from the city.

What is the best way to keep moisture from ruining flooring on a concrete slab?

Put a vapor retarder, a moisture layer under the slab, right against the bottom of the concrete. The industry's floor guide says experience shows coverings and coatings get the most protection that way, and it says plain polyethylene sheeting, though used in the past, shouldn't be considered for below-slab moisture protection. Ask any contractor what they plan to lay down and where it goes.

How much does a new concrete floor cost in Lewiston?

There's no honest number until I've seen the site, so your price comes in a written estimate after the visit. The biggest swings usually come from how much base work the ground needs and whether a moisture layer goes under the slab, and those are the last places I'd cut to save money.

What does an Idaho contractor have to give me before I sign a contract?

Idaho law requires a general contractor to give you a disclosure statement before any contract over $2,000 to build, alter or repair improvements on residential property. Read it before you sign, and ask about anything that isn't clear.

Get a written estimate for your floor

Send your address, whether it's inside Lewiston city limits, what the floor's for and any covering or coating you're planning. We reply within one business day, and I come out for a free estimate with no pressure to book.

(208) 848-5044