Garage Concrete Contractor NYC: Rockzen USA

Varies. A 2-car garage of about 400 sq ft costs about $4,000 to $6,400 to replace.

• Slab thickness, reinforcement and finish set the price.
• Access and demolition add cost.
• 400 sq ft at 4 inches thick is about 4.9 cubic yards of concrete, before waste.
• We price each garage after we see it.

Varies. Leveling runs about $1,200 to $3,500, and repairs cost less than replacement.

• The cause sets the repair: settlement, moisture or surface wear.
• Patching over a moving slab fails.
• We inspect first, then price the repair.

Yes. The slab has to be sound.

• Cracks, pitting and shallow spalling can be repaired.
• A sunken slab needs its cause found first.
• A crumbling slab usually needs replacement.

Repair. It costs less up front when the slab underneath is sound.

• A sound slab can be repaired or resurfaced.
• A moving or crumbling slab needs replacing.
• Patching a moving slab means paying twice.

Varies. The price depends on the area, the surface condition and the overlay.

• Preparation, such as grinding or shot-blasting, is a large part of the work.
• A floor in poor shape costs more.
• We price it after we inspect the slab.

Yes. The slab has to be sound.

• We grind or shot-blast the surface.
• We repair the damage and apply a bonded overlay.
• A badly cracked or sunken slab needs replacing instead.

Varies. Professional epoxy runs about $3,000 to $3,850.

• Floor area, slab repairs, the system and the number of layers set the price.
• Decorative flakes or an anti-slip finish can add cost.
• We test for moisture first.

Varies. A 20 by 20 foot garage is 400 sq ft, and professional epoxy runs about $3,000 to $3,850.

• Slab preparation and repairs change the price.
• The number of layers changes it too.

Often. It protects a sound, dry slab.

• A coating resists stains and abrasion.
• It cleans up easily.
• It does not fix a damp or failing slab, so we test and repair first.

Depends. No single coating is best.

• Epoxy is common and costs less.
• Polyaspartic cures faster and resists UV light better.
• The slab, the moisture and your use decide.

Depends. The plans and the exposure decide.

• Use concrete rated for vehicle loads.
• Add air entrainment for freeze-thaw.
• Ask for the mix design in writing.

Varies. It depends on the system and the slab.

• A well-prepared slab holds a coating longest.
• A damp slab can peel it early.
• Heavy wear shortens it.

Varies. It depends on the overlay and how well it bonds.

• Road salt and freeze-thaw shorten it.
• A moving slab shortens it.

Sometimes. A small crack, yes.

• A slab, a leveling job or a coating over a damp floor needs a concrete contractor.
• The base, the moisture and the curing decide the result.

Compare. Ask every contractor for the same five things, then compare estimates line by line.

• Check the license and insurance.
• Get a written scope with slab thickness, strength and reinforcement.
• See recent garage photos with locations.
• Ask who files the permits.
• Get the warranty terms in writing.

Six. Ask these questions, and get the answers in writing.

• Who does the work?
• Do you test the slab for moisture?
• How do you prepare the surface?
• Which coating or overlay do you use, and why?
• What does the warranty cover?
• How long will the job take?