The cost to repour a garage floor is typically $4,000-$10,000 for a standard two-car garage, with a national average near $6,500. Total price depends on floor area, concrete thickness, demolition and disposal, reinforcement, site access, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete repour | $3,000 | $6,500 | $15,000 | About 400-800 sq ft |
| Installed concrete | $6 per sq ft | $11 per sq ft | $19 per sq ft | Includes typical removal and placement |
| Demolition and disposal | $2 per sq ft | $4 per sq ft | $7 per sq ft | Higher for difficult access |
What a 400- to 600-Square-Foot Garage Floor Costs
A full repour commonly costs $4,000-$10,000 for a two-car garage with ordinary access, a 4-inch slab, and standard concrete. A one-car floor of about 200-300 square feet may run $2,000-$5,500, while a larger 700-800-square-foot floor can reach $7,000-$15,000.
For a typical 500-square-foot garage, budgeting around $5,500-$8,000 is a practical starting point. Lower quotes generally assume uncomplicated demolition and basic finishing; higher quotes may include thicker concrete, reinforcing, drainage work, or a costly haul-away route. Assumptions: U.S. midrange labor, standard ready-mix concrete, full slab replacement, and no major foundation repairs.
Where Concrete Removal and Replacement Dollars Go
Quotes often combine demolition, hauling, base preparation, concrete, reinforcement, and labor. The table shows typical allowances; line items vary by contractor and may be bundled into one installed rate.
| Quote item | Low | Average | High | Typical scope |
|---|---|---|---|---|
| Breakup and removal | $2 per sq ft | $4 per sq ft | $7 per sq ft | Saw cutting, breaking, hauling |
| Base and grading | $1 per sq ft | $2 per sq ft | $4 per sq ft | Gravel, compaction, leveling |
| Concrete and reinforcement | $3 per sq ft | $5 per sq ft | $8 per sq ft | Mix, mesh or rebar |
| Placement and finishing labor | $2 per sq ft | $4 per sq ft | $7 per sq ft | Pouring, leveling, broom finish |
| Permits and incidental work | $0 | $300 | $1,200 | Local permits or drain adjustments |
Demolition and placement are usually the largest charges, while a poor subbase can add costs beyond the basic pour. Confirm whether the estimate includes disposal fees, vapor barrier, reinforcement, cleanup, and taxes.
How Slab Thickness, Access, and Reinforcement Change the Quote
Thickness affects both concrete volume and labor. A standard 4-inch slab may fit ordinary passenger vehicles, while a 5- or 6-inch slab for heavier loads can add roughly $1-$3 per square foot, depending on reinforcement and local material prices. For a 500-square-foot floor, that can mean another $500-$1,500 or more.
Rebar or wire mesh may add about $0.50-$2 per square foot. A tight alley, steps, or a long wheelbarrow route can add $500-$2,000 when trucks or concrete pumps cannot reach the garage. If the floor is below grade or has a drain, changing slope or drain connections can also raise the quote.
Ask the contractor to state slab thickness, reinforcement, and access assumptions in writing. A quote that simply says “new concrete floor” may not specify details that substantially affect durability and price.
How Long a Two-Car Garage Repour Takes and What Crews Charge
A crew of three to five workers may spend one day breaking and removing the old slab, then another day preparing the base and placing concrete. Curing takes longer: foot traffic may be possible after about 24-48 hours, but vehicle use often needs to wait at least seven days, with full strength developing over roughly 28 days.
Labor is commonly priced within the installed rate, but separate labor charges may fall around $50-$100 per worker-hour. Weather, concrete delivery windows, and inspection requirements can extend the schedule, so confirm when the garage can be used again.
Labor time and access matter as much as the pour itself when estimating a small or obstructed garage.
When Crack Repair Costs Less Than a Full Repour
Replacing the entire floor is not always necessary. Minor, stable cracks may be sealed for about $150-$600, while broader crack filling or patching can cost $300-$1,500. A garage floor coating over sound concrete may cost $4-$10 per square foot, but coatings do not correct a sinking slab or serious drainage problem.
Repouring is more likely when large sections have settled, the slab has extensive deep cracking, or the base is failing. A contractor may charge $100-$300 for an evaluation, sometimes credited toward the job. Compare repair and replacement only after checking whether the slab is stable and drains correctly.
What Three Garage Repour Quotes Might Include
For a 400-square-foot single-car garage, a straightforward quote might be $4,000, or $10 per square foot, including removal, disposal, a 4-inch slab, and a basic finish. A 500-square-foot two-car garage with mesh, a new compacted base, and ordinary access might total $6,500, or $13 per square foot.
A 700-square-foot garage with a 6-inch reinforced slab, difficult access, and drain adjustments could reach $13,000, or about $19 per square foot. These examples are not fixed market rates; location, concrete delivery, and disposal distance can shift totals. Compare the same square footage, thickness, and included tasks across every quote.
Which Prep Choices Can Lower a Garage Floor Bill
Clearing stored items and vehicles before the crew arrives can prevent extra handling charges. Ask whether the contractor can reduce disposal costs through a nearby recycling facility, and verify that the existing base can be reused if it is sound and properly compacted. Do not skip necessary base correction to save money; settlement can make a low quote expensive later.
Request at least three itemized estimates and compare concrete thickness, reinforcement, finish, cleanup, and warranty terms. Avoid paying for decorative finishes or upgrades that do not match the intended use. The most reliable savings come from controlling scope and comparing equivalent bids, not reducing essential slab or base specifications.