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Keystone Montgomery Concrete Company
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Slab foundation building in Montgomery AL - a slab planned for the clay under it

Building a house, addition or shop on Montgomery clay? We check the ground first, then pour a slab that suits your lot and floors.

Request an estimate(334) 215-4466
A smooth concrete patio runs beneath a dark timber pergola attached to a tan house, with gravel landscaping along its edges.

What does it take to build a slab foundation in Montgomery?

Slab foundation building in Montgomery means pouring a reinforced concrete slab on prepared ground so it carries your house, and at Keystone Montgomery Concrete Company we plan that slab around your lot's soil before any forms go up.

You're probably planning a new house, an addition or a shop, and the slab comes first because everything else sits on it. The price moves with the slab's size and thickness, how much dirt work the lot needs, how much steel goes in and whether the design calls for post-tensioning. The schedule turns mostly on the weather, the permit and how long the ground takes to prep. I'll write up your own figure after I've looked at the ground and measured.

Why Montgomery picks us for slab foundations

You'll talk to me from the first call to the final walk-through, and you'll know what's going under your slab and why before we pour any concrete.

  • I look at your lot myself

    I come out to check the ground and measure, then I'm on site running our crew the day we pour.

  • Our own business since 2023

    I learned concrete pouring barn pads and feed lot floors, worked on crews around here, then started this business in 2023.

  • Licensed and insured for slab work

    We're fully licensed and insured, and you're welcome to ask to see that before we start.

  • The reason behind each step

    I'll show you where the base gets packed and where the joints go, so you can judge the work yourself.

  • Satisfaction guaranteed

    That's our promise on every slab, and you can call me directly with questions after the forms come off.

Slab foundations we build

Which slab fits your house comes down to the ground, so before anything gets designed I ask whether your lot needs an onsite soil check and how much the clay moves.

  • Reinforced slab with rebar

    This suits most houses and additions on steadier ground, with rebar, steel bars tied in a grid, holding the concrete together if the slab moves. The money goes into the subgrade first, digging out and packing what the slab sits on, because it's hidden on day one and it's the first place a tight budget gets cut, and that's where I won't cut.

  • Post-tensioned slab for shifting clay

    On clay that swells and shrinks, we talk about whether a post-tensioned slab fits, where steel cables run through the concrete and get pulled tight after the pour so the slab holds together as the ground moves. It has to be designed for your lot, so we'd rather settle that question up front than after the forms are set.

  • Slabs for additions, shops and garages

    A smaller slab gets the same dug-out base and steel as a house, sized to what it will carry. If your house needs stem walls or a crawlspace instead of a slab on the ground, that's our foundation installation work.

  • Building pads for small property owners

    If you own a small rental or business property, we can plan the building pad and the paved area around it together so the grades work as one. For the drive and parking side, see our concrete parking lot building work.

What happens when you call about a slab foundation in Montgomery?

Each slab gets planned around your lot and what you're building, so the ground and the permit are settled before the forms go up and the truck rolls in.

  1. Call or send a message

    Call (334) 215-4466 or use the form, and you'll reach me, the owner, to talk through your lot and what you're building.

  2. I walk the lot

    I come out, look at the ground, measure and ask how you'll use the slab, including what floors go on top.

  3. Your written estimate

    I write it up with the base work, the steel and the slab type spelled out, so you can see what you're paying for.

  4. Permit, prep and pour

    Once you say go, we sort out the permit side, prep and pack the ground and pour, and I walk you through care before we leave.

Questions about a step? Call and talk it through.

(334) 215-4466

Slab foundation questions we hear

How much does a slab foundation cost in Montgomery, AL?

A reinforced concrete slab in Montgomery usually costs about $6 to $11 per square foot, which is the going rate in the area, not our quote. How much dirt work your lot needs, the slab's thickness and the steel decide where you land in that range, and I'll give you your own number after I've measured.

Does a slab foundation builder in Alabama need a state license?

Yes, when the job is big enough, because Alabama's Home Builders Licensure Board licenses residential home builders each year, including anyone paid to build a residence costing more than $10,000. If you act as your own builder under the homeowner exemption, the board says you put your protections under state law at risk, like filing a consumer complaint or getting paid from the Homeowners' Recovery Fund. Any crew you hire yourself still has to be licensed when its share of the work tops $10,000.00, so ask before you sign.

Does my lot in Montgomery need soil testing before a slab is poured?

Some lots do, because the USDA soil survey says an onsite investigation is needed in some cases, including certain engineering work. It's best to find out before the slab is designed, since the answer can change the slab type and the base work.

How do I keep moisture coming up through a slab from ruining my floors?

Plan for it before the pour, because water vapor rising through a slab can make moisture-sensitive flooring glues or coatings fail and leave floors loose, warped or stained. Loose flooring can turn into a trip hazard too, so if you're planning glued floors, tell me at the estimate and ask how the slab will hold back vapor.

How long does a new concrete slab take to cure before I can walk on it?

A new slab should be walkable within about 48 hours, but concrete takes a month to fully cure. Curing is the slow hardening that gives concrete its strength, so the slab keeps gaining strength well after it looks finished, and I'll go over how to treat it in the meantime.

What causes a new slab foundation to crack?

Most cracks that cause real trouble start underneath, with a base that settles or water that collects under the slab because nobody checked where it runs. A midday pour in the heat or control joints cut too late, the grooves that give cracks a straight place to go, add to it, so we watch the drainage, pour early in the day and cut joints on time.

Slab foundation building on Montgomery clay

In Montgomery, permits to build a house or other structure come from the city's building official, and if the site work disturbs more than 3,500 square feet of ground or goes deeper than 24 inches, the city also wants a grading permit package. Before we start, we check with the city or county office that covers your address, and if the job needs a permit, we pull it. If you'd like to talk permits over with the city yourself, the Inspection Department sets up appointments at 334-625-2073.

One soil-risk survey puts 52% of Montgomery County's soil area in high shrink-swell clay, the kind that swells when it's wet and pulls back in a dry spell. That's a county share, so a check on your own lot tells you more, and on clay like this the post-tensioning trade group calls a post-tensioned slab a cost-efficient, high-performance choice for home foundations. We meet that kind of ground on jobs in Pike Road and Prattville too, and we work in plenty of cities around Montgomery, so just ask if you're not sure we come out your way.

Plan your slab with Keystone Montgomery Concrete

Call (334) 215-4466 until 11 PM on weekdays or 10 PM on weekends, and have your lot address and slab size handy.

Request an estimate(334) 215-4466