Common questions. Straight answers.

A single-car garage epoxy flake system typically runs $800-$1,800. A two-car garage runs $1,500-$3,500. Polyaspartic one-day systems run slightly higher. Metallic epoxy costs more. The on-site estimate confirms the written price.

Yes. A coating crew visits your space, checks the slab condition and moisture readings, reviews the system options, and hands you a written quote with no obligation and no trip fee for your zip.

Slab size, system type, concrete condition, and moisture barrier requirements are the main cost drivers. Polyaspartic costs more than standard epoxy. Metallic systems cost more than flake. High moisture readings or extensive crack repair add prep cost before any coating goes down. Your crew confirms all of it at the on-site estimate.

Epoxy is a two-part system that cures slowly, requires 24-72 hours before foot traffic, and can yellow under UV. Polyaspartic cures fast, can be completed in one day, resists UV without yellowing, and handles temperature extremes better. Polyaspartic costs more. Both systems require proper concrete prep to bond correctly.

Yes. High moisture vapor emission from the slab will lift or bubble an epoxy coating within months. Coastal and low-lying slabs in San Diego often have elevated MVER readings. Your crew tests before applying any product. If readings are high, a moisture barrier primer is applied first. Skipping this step is the most common cause of epoxy failure.

Grinding opens the surface pores of the concrete and creates a profile for the epoxy to mechanically bond into. Slabs that are not ground will have epoxy peel within months. Diamond grinding is the standard; acid etching alone is not sufficient for full-thickness epoxy systems. Previous coatings, sealers, or contamination must be removed before grinding.

A standard epoxy flake system on a two-car garage takes one to two days plus 24-72 hours cure before parking a vehicle. Polyaspartic systems are typically one day with a shorter cure window. Slabs needing extensive prep or crack repair take longer. Your crew sets the timeline at the on-site estimate.

Light foot traffic is usually safe after 24 hours. Parking a vehicle typically requires 48-72 hours minimum for epoxy and 24 hours for polyaspartic. Heavy tire turning and chemical spills need a full 7-day cure before the coating reaches full hardness. Your crew gives you the specific timeline for your system.

Epoxy and polyaspartic floor coatings on existing slabs do not require a permit. If the project includes structural slab repair, drainage modifications, or electrical work in the garage, those elements may require permits. Your crew confirms what is and is not in the permit scope.

No. Epoxy Coat SD is a referral service, insured but not licensed, cslb.ca.gov. We match you with insured local epoxy coating crews and help you get a clear written quote. The crew you hire does the work.

The crews we match carry general liability and workers comp, and we confirm coverage before work starts. You can verify any California contractor license at cslb.ca.gov before you sign.

Getting matched and getting the on-site estimate and written quote costs you nothing. You only pay the epoxy coating crew you choose for the actual floor work.