Concrete crack repair cost calculator
Add up the length of the surface cracks and enter your price per linear foot to estimate a concrete crack repair job — the cosmetic, flatwork kind, not below-grade waterproofing.
Calculator
Filling 30 linear ft of surface cracks at $10.00/lf is about $300.00. This is a cosmetic/surface flatwork repair, not below-grade waterproofing.
Repairing cracks in a driveway, patio, sidewalk or garage floor is priced by the linear foot of crack filled and sealed. Measure or pace the total length of the cracks you want addressed, enter your quoted rate per foot, and this tool returns the estimate. It is the right tool for surface cracks in flatwork — routing and filling, patching and sealing to stop water intrusion and stop the crack from spreading.
Scope note: this is a cosmetic, surface flatwork repair estimate. It is not below-grade basement or foundation crack injection for leaks or structural cracks — that is a different trade with different methods and pricing.
Formula
The estimate is the crack length times your rate:
total = crack length (linear ft) × price ($/linear ft)
Total the length of every crack you plan to fill — if a slab has three cracks of 8, 12 and 10 feet, enter 30. Wider or deeper cracks that need routing and backer rod cost more per foot than hairline cracks; use the rate your contractor quotes for the work actually required.
Worked example
30 linear feet of cracks across a driveway, quoted at $10 per linear foot to rout, fill and seal:
30 × $10 = $300
If the cracks are numerous or the surface is generally worn, compare the fill cost against a full resurfacing overlay — past a certain crack density, resurfacing the whole slab can be the better value than chasing individual cracks.
What crack repair covers (and what it doesn't)
Surface crack repair on flatwork typically means cleaning and routing the crack, installing backer rod where needed, and filling with a flexible polyurethane or cementitious sealant so water stops getting in and the freeze-thaw cycle stops widening it. It restores appearance and slows deterioration; it does not re-level a sunken slab — for that, price mudjacking or foam leveling.
| Crack situation | Better tool |
|---|---|
| A few surface cracks in sound flatwork | This calculator |
| Whole slab worn / crazed / many cracks | Resurfacing |
| Slab sunken but intact | Leveling |
| Slab crumbling / heaving / failing | Removal & replace |
Below-grade foundation or basement wall crack injection for water leaks is out of scope here — that is a waterproofing specialty, not surface flatwork.
Frequently asked questions
How much does concrete crack repair cost?
Surface crack repair is priced per linear foot of crack, and the rate depends on crack width, depth and prep. This tool uses length × your $/linear ft so it stays accurate whatever the rate. Enter the figure from your quote for a job-specific total.
Is filling cracks worth it, or should I replace the slab?
For a handful of cracks in an otherwise sound slab, filling and sealing is far cheaper and stops water damage. If the slab is heavily cracked, crumbling or failing, compare against resurfacing or full replacement.
Does this cover basement or foundation cracks?
No. This is a cosmetic surface repair estimate for flatwork like driveways, patios and sidewalks. Below-grade foundation or basement wall cracks that leak water are a waterproofing specialty with different methods (such as epoxy or polyurethane injection) and pricing.
How do I total the crack length?
Measure or pace each crack you plan to fill and add them up. Three cracks of 8, 12 and 10 feet is 30 linear feet. Enter the sum — the estimate scales directly with total length.
Is this a bid?
No — it is a planning estimate from the numbers you enter, not a bid or a contract. Prep, crack condition and access change the real price. Get itemized written quotes from licensed, insured contractors before you commit.