Garage floor concrete in Key West FL - a solid floor built for your car and your tools
Cracked, sunken or crumbling garage floor? We dig out, pack a firm base and pour a new slab that sits flat and drains toward the door.
A new garage floor means breaking out the old slab, packing a firm base, setting forms and steel, then pouring and finishing. We put the most care into the base, steel and joints, because nobody sees them once it's poured.

- Fully licensed and insured.
- Free estimates at your property.
- We reply within 1 business day.
A garage floor built from the ground up
I come out myself
I look at your garage and measure it, and our crew of form setters and finishers pours it with me.
Fully licensed and insured
We're fully licensed and insured for the concrete work we do at your house.
What goes into a new garage floor in Key West?
Garage floor concrete in Key West means pouring a new slab on firm, evenly packed ground, smooth enough to sweep but with enough grip for wet tires and dripped oil. The price moves with the size of the garage, how much old concrete comes out, what the ground under it needs and whether a vapor barrier, a plastic sheet that stops ground moisture, goes under the slab for a coated or cooled garage. The schedule turns on the permit, the weather and the cure before you park, and when your job needs a permit, we handle the paperwork with the city's Building Department. If the budget gets tight, I'd keep the money in the base before the finish, because a nice top on raked dirt settles right along with it. Your estimate comes with a written scope, so you can see where each part of the price goes.
How do you know your garage floor needs replacing?
Cracks that keep opening
One hairline crack is normal for concrete. Cracks that keep widening, run across the floor or leave one side higher point to a base that moved.
Sunken or tilted sections
If a corner has dropped or the floor tips toward a wall, the ground under it settled, usually because the base was raked level instead of packed.
Water or dirt coming in
If water and soil wash in from a higher yard beside the garage, the floor and grade need work, and a concrete retaining wall can hold the yard back.
Flaking, pitted or dusty top
A top that flakes, pits or leaves gray dust on your shoes has a weak surface, often from a pour finished in the midday heat.
How a garage floor concrete job runs, start to finish
You call or send the form
- Call (645) 300-7417 or use the form
- Share your garage size
- Mention any coating or cooling plans
- Tell us your flood zone if known
I visit and write the scope
- I look, measure and ask questions
- We confirm whether city or county covers you
- You get a written scope and price
- City permit sorted before a pour date
We prep, pour and finish
- I check base, forms and layout first
- Pour timed around the day's peak heat
- Steel set and joints cut on time
- Finish chosen for grip or coating
Cleanup and walk-through
- We clean up the site
- We walk the finished floor with you
- Cure time explained before you park
- Questions answered before we leave
Ask for a free garage floor estimate
Send your garage size, flood zone if you know it and any coating or cooling plans, and we'll reply within one business day. The on-site estimate is free, with no obligation.
Garage floor questions we hear
Here are the questions Key West homeowners ask us most about garage floors. If yours isn't here, call (645) 300-7417 and ask.
Do I need a city permit for a new garage floor in Key West?
Key West's Building Department issues permits for work over $1,000, labor and materials included, or any structural change, and only non-structural, all-interior work under $1,000 is exempt. We handle the paperwork when a job calls for one. Some Key West addresses fall under Monroe County instead, so we check which office covers yours first.
What does a new concrete garage floor cost in Key West?
Across Florida, an installed concrete slab usually costs about $8 to $14 per square foot, labor and materials included. Where your floor lands in that range depends on tear-out, base work, the finish and whether a vapor barrier goes in. Your written estimate shows where yours falls.
How soon can I put epoxy on a new garage floor?
Not until the floor's moisture and surface texture have been checked, because a young or dirty slab can lose an epoxy or polyaspartic coating even when it looks dry. We check both before a coating goes on, and if you plan to coat, tell us at the estimate so testing is part of the job.
Can I turn my flood zone garage in Key West into living space?
Not without raising it, because the city treats a garage below flood levels with flood vents as storage and parking only, and living space is a change of use that requires elevation. Zones like AE, AO, VE and Coastal A carry those flood rules, while X and Shaded-X are exempt. That covers addresses inside Key West city limits.
How long does a new garage floor need to cure in hot weather?
Hot-weather guidance calls for curing at least 3 days, keeping the slab wet under burlap and plastic, watering it or sealing it with a curing compound. Curing, the stretch where fresh concrete holds its moisture and gains strength, keeps the top from turning weak, so stay off it until I tell you it's ready to drive on.
Will my new garage floor crack like the old one did?
Some cracking is normal, but a floor on a dug-out, packed base with control joints cut on time tends to crack along those lines instead of across the middle. Old floors that split badly usually sat on raked dirt or skipped the joints. Key West soil varies from lot to lot, so I look at the ground before I price the base.
Other work we pour
- Service
Concrete driveway building
If the driveway leading into the garage is cracked or sinking too, doing both together lines up the slope and the edge where they meet at the door.
Read more Concrete driveway building - Service
Concrete cutting
When only part of the old garage floor has to go, or a trench is needed for plumbing, clean saw cuts keep the rest of the slab intact.
Read more Concrete cutting - Service
Slab foundation building
Building a new garage from scratch means the slab carries the walls as well as your car, so the floor and the foundation get planned as one job.
Read more Slab foundation building
Get a free estimate on your garage floor
Request an estimate- VisitKey West, FL 33040
- Call(645) 300-7417
- Emailoffice@keywestconcretecompany.com
- HoursMon–Fri: 6 AM–10 PM, Sat–Sun: 8 AM–10 PM
Where we pour around Key West
We're based in Key West and work across the island and the cities around it. Pick your area below, or call if yours isn't listed.
