RP · P-06 · Repair and sealing
Repair, resurfacing and sealing
Crack sealing, joint sealing, cleaning and sealing, resurfacing a flaking top, and replacing one or two bad panels. Plus a straight answer when repair is not worth it.
- Worth repairing
- Level within about 1 in, in one piece, base not washing out
- Crack sealing
- Routed to a clean channel, backer rod, polyurethane sealant
- Cleaning
- Hot-water pressure wash, degreaser on oil stains
- Price
- from $1.25 per sq ft
Scope
What we pour
Not every tired slab needs to come out. If it is still level and in one piece, sealing the cracks and joints, cleaning and sealing the surface, or a thin resurfacing coat can buy years. If panels have sunk more than an inch or broken into pieces, replacement is usually cheaper over ten years, and we will tell you that on the first visit instead of selling you a patch.
- 01 Crack routing and sealing with flexible polyurethane
- 02 Joint sealing to keep water out of the base
- 03 Cleaning and sealing driveways, walks and patios
- 04 Resurfacing overlays on flaking but sound slabs
- 05 Saw-cut and replace one or two bad panels
Specification
Built like this
This is what goes on the written quote. If another bid does not say these things, ask.
- Worth repairing
- Level within about 1 in, in one piece, base not washing out
- Crack sealing
- Routed to a clean channel, backer rod, polyurethane sealant
- Cleaning
- Hot-water pressure wash, degreaser on oil stains
- Sealer
- Penetrating silane-siloxane, applied on a dry day above 50°F
- Resurfacing
- Polymer-modified overlay, 1/8 to 3/8 in, broom or smooth
- Panel replacement
- Saw-cut at the joints, doweled into the old slab
Prices
What it costs
-
Crack routing and sealing
$3 to $6 per linear ft
-
Joint sealing
Polyurethane in existing joints
$2 to $4 per linear ft
-
Clean and seal
$1.25 to $2.25 per sq ft
-
Resurfacing overlay
Sound slabs only
$5 to $9 per sq ft
-
Panel replacement
Saw-cut, remove, re-pour, small-job pricing
$14 to $20 per sq ft
-
Minimum repair visit
$450
Ranges include digging, gravel base, forms, steel, mix, joints and curing unless a line says otherwise. Where you land in a range depends on access for the truck, how much soft soil comes out and how complicated the shape is. The firm number comes after the site visit and does not move unless the scope does.
Before you sign
Honest notes
Cracking
Sealing a crack keeps water out; it does not glue the slab back together, and the line stays visible. Anyone who promises invisible crack repair is guessing.
Curing
Sealer needs about 24 hours dry before foot traffic and 48 before cars. Overlays follow the same clock as new concrete, just shorter.
Sealing
The cheapest maintenance concrete gets. Every 3 to 5 years for broom finishes, every 2 to 3 for stamped.
Freeze-thaw
Resurfacing fixes flaking caused by salt and a weak top. It will not fix a slab that is heaving; that one comes out.
Schedule
How the job runs
-
Visit
Repair or replace
We check level, base and crack pattern, then give you both prices if both are honest options.
-
Day 1
Clean and prep
Pressure wash, rout cracks, grind high spots.
-
Day 1 or 2
Seal or resurface
Sealant, sealer or overlay applied on a dry day.
-
48 hours
Back in use
Feet after a day, cars after two.
Questions
Asked about repair and sealing
Can you lift my sunken slab?
We do not do slab lifting (mudjacking or foam). If a panel or two has sunk, we can saw-cut and replace them, and we will tell you if lifting would be the cheaper fix so you can call someone who does it.
Will a patch match my old concrete?
No patch matches perfectly; new concrete is lighter for a year or more. Replacing whole panels at the joints looks much better than patching the middle of one.
How often should I seal?
Broom-finish drives and walks every 3 to 5 years with a penetrating sealer. Stamped and colored work every 2 to 3 years. Always on a dry day above 50°F.
Next step
Get your repair and sealing price in writing.
Tell us what you want poured and roughly how big. We walk the site, check the base and the slope, and send a written quote within two business days.