Concrete floor installation in Alexandria VA - a floor ready for carpet, tile or wood
Bare dirt, a cracked old slab or a basement floor that's crumbling? We pour a new floor that's flat, jointed and cured right.
Plan your new concrete floor with us
Have the floor's rough square footage and your flooring plans handy, so the first call gets straight into the details.
What goes into a new concrete floor in Alexandria?
Concrete floor installation in Alexandria means we build a new slab floor for your basement, garage or addition, then finish, joint and cure it so the surface stands up to wear. The pour is the quick part, and most of the waiting comes before and after it.
Most calls start with a basement floor that's cracked and dusty, a garage with dirt where a slab should be, or an addition that needs a floor before anything else can happen. The price moves with the size, how thick the slab has to be, whether it needs steel, whether an old floor has to be cut out first and what's going on top, since carpet, tile or wood means extra protection against moisture. The schedule turns on the permit, the inspection and the curing time more than on the pour itself. We find out which office covers your address and take care of the permit work for our part of the job, and the written estimate after my visit spells out what's included for yours.
Why Alexandria homeowners call J&K Alexandria Concrete Company for new floors
The owner walks your job
I come out myself to look at the floor and write the estimate, and our own crew does the forming, pouring and finishing. Nobody hands your job off halfway through.
Framing years, concrete since 2017
I framed houses before switching to concrete and learned the trade on Northern Virginia crews before starting this business in 2017. Having built on bad slabs, I watch the base more than the trowel.
Licensed and fully insured
We're licensed and fully insured, and you can ask me for the license details when I'm out for the estimate. If any permit paperwork needs your signature, you'll hear that up front too.
Concrete is hard to undo, so I'd rather ask the questions before the pour. Call (571) 760-4255 or send us the details to set up a visit.
How we handle concrete floor installation
My first question is what's going on top of the floor, because carpet, tile or wood changes how we protect and cure the slab. Concrete industry guidance calls for protection against moisture rising through a slab that will be covered, since water vapor can make flooring adhesives let go and leave you with warped or stained flooring, edges you trip on and sometimes a musty smell. Then we dig out and pack the subgrade, the ground the slab sits on, instead of raking it smooth, because a floor settles with whatever is under it. Where the slab needs it, we set rebar, steel bars inside the concrete that help hold it together. We lay out the control joints with you before pour day, since those cut lines give the slab a place to crack where we choose rather than wherever it likes. On pour day the timing of finishing, cutting joints and curing matters more than most people think, because getting it wrong shows up later as cracks, a surface that wears fast, high and low spots and water that won't drain. If the budget gets tight, I'll spend it on the base before a fancy finish, because you see the finish on day one but the base decides whether the floor stays flat.
A floor job often runs into the work around it. If the new floor meets an outside door or a drop to the yard, concrete steps can be planned at the same time so the heights line up, and if the project heads out back, we also build concrete pool decks with the same care for the base and the drainage.
Floors that get carpet, tile or wood
This suits basements, additions and finished rooms, where the concrete ends up hidden under flooring. We plan the moisture protection and curing around what you're putting down, since that's what the flooring depends on.
Bare concrete floors
This suits garages, workshops and utility rooms, where the slab itself is the floor. The finish and the joint layout get extra attention here, because you'll see and walk on every inch of it.
How do you know it's time for a new concrete floor?
Cracks that keep growing
A crack that widens, or one side sitting higher than the other, usually means the ground under the slab moved. Waiting lets water in and can turn a repair into a full replacement.
Flooring lifting or smelling musty
Tile popping loose, wood cupping or carpet that smells damp over a slab often points to moisture coming up through the concrete. Left alone, it keeps ruining whatever flooring you put down.
Water sitting in low spots
Puddles that collect in the same place on a garage or basement floor mean the slab has dips or falls the wrong way. The longer water sits, the more it stains and chips the surface.
Dusty, chipping surface
A floor that sheds gray dust or chips under a dolly usually had its top finished or cured badly. It only wears faster, and coatings or flooring won't hold well on a crumbling surface.
What happens after you call about a new floor?
Call and I come look
You call, and I come out to see the space and ask what's there now and what's going on top. You get a written estimate that spells out what's included.
Permit, inspection, then pour day
We sort out which office covers your address and what paperwork the job needs. On permitted work the city inspects the prep before concrete goes in, and the pour date follows that.
Walk the finished floor together
Our crew pours, finishes, joints and cures the floor, and I walk it with you at the end. That's the time to ask about anything you see.
Questions about new concrete floors
These are the questions I hear most about new floors around Alexandria. If yours isn't here, call or send the form and tell me what you're planning to put on top.
How much does a concrete floor cost in Alexandria?
A plain concrete slab in Northern Virginia, with no staining or stamping, usually costs about $6 to $12 per square foot, which is the going rate in the area rather than a price from us. Reinforced slabs cost more per square foot than unreinforced pads, and home floor slabs run four to six inches thick, with garage and basement slabs at the thicker end. Your free written estimate spells out what's included, such as removal and haul-away, so you can compare it fairly with other bids.
How long does a new concrete floor take before I can walk on it?
You can usually walk on a new slab within 48 hours, and it's safest to wait about a week before putting heavier loads on it. Full curing takes about a month, 28 to 30 days, so plan when the heavy furniture, shelving or car goes back with that in mind.
Will my new concrete floor crack?
It may crack some, because no one can keep concrete from cracking entirely. Properly designed joints control those cracks and keep them small and in planned lines. Ask any contractor you're considering where the joints will go before the pour.
Do I need a permit for a new concrete floor in Alexandria?
Most likely, because the City of Alexandria requires permits for most construction and maintenance work on buildings and structures, and applications go in online through the city's APEX system. The permit holder or property owner requests the required inspections, every permit needs an approved final inspection, and photos taken before the work is covered aren't accepted in place of one. If you want to check on your own address, the city's Permit Center answers questions at 703.746.4200 or Permit.Center@alexandriava.gov.
What is the best way to cure a concrete floor that will get tile or wood?
Concrete industry guidance for a slab getting moisture-sensitive flooring is to cure it under plastic sheeting for 3 days and to moist cure it for no more than 7 days. Curing is the wait while the concrete gains strength, and rushing it leaves a weaker top. That's why what goes on top is the first thing I ask about.
How do I check a concrete contractor's license in Virginia?
Ask for the state license number and make sure it fits the job, since a Virginia Class C license covers a single project worth more than $1,000 but less than $30,000. Alexandria's permit applications list both the contractor's state license number and their City of Alexandria business license number, so ask for both at the estimate.
Get a written estimate for your floor
Tell us the floor's size in square feet, where it is and what flooring goes on top. We reply within one business day, and I set a time to come out for a free on-site estimate with no obligation.
Concrete floors, start to finish
Other concrete work around the house
Concrete steps construction
If your new floor meets an outside door, steps poured to match its height keep the threshold even and help keep water from running back toward the house.
Learn moreConcrete pool decks
A pool deck needs the same packed base and planned joints as an indoor floor, plus a textured surface and a slope that carries splash water away.
Learn more