What does a professional concrete floor polishing job cost for a Moncton garage or workshop space?

Professional concrete floor polishing in Moncton typically costs $4-$8 per square foot for a basic polish, or $6-$12 per square foot for decorative polishing with staining or aggregate exposure. For a standard two-car garage (400-500 sq ft), expect to pay $1,600-$4,000 depending on the concrete condition and desired finish level.

Basic Polishing Services include grinding to remove surface imperfections, progressive diamond polishing to achieve the desired sheen level, and densifier application to harden the surface. This creates a smooth, dust-free floor that's easy to clean and maintains well in workshop environments. Most Moncton contractors offer three sheen levels: matte (400-grit equivalent), satin (800-grit), and high-gloss (3000-grit). Higher gloss levels cost more due to additional polishing steps.

Decorative Options add significant cost but create stunning results. Acid staining ($2-$4/sq ft additional) produces rich, variegated colours that penetrate the concrete permanently. Dye staining ($1-$3/sq ft additional) offers more colour options with consistent coverage. Aggregate exposure polishing ($3-$6/sq ft additional) grinds deeper to reveal decorative stone within the concrete mix, creating a terrazzo-like appearance.

New Brunswick's freeze-thaw cycles make proper concrete assessment critical before polishing. Garages and workshops built before 1990 often have concrete that's suffered frost damage, creating spalling, cracking, or delamination that must be repaired before polishing can begin. Surface repairs add $2-$5 per square foot to the project cost. Additionally, Maritime humidity means your concrete slab may have higher moisture content than inland provinces — excessive moisture can interfere with densifier penetration and polishing compound adhesion.

Preparation work significantly affects total cost. Oil stains from vehicles require degreasing treatment ($1-$2/sq ft). Existing coatings or sealers must be completely removed through grinding, adding $2-$4/sq ft. Uneven concrete requires more aggressive initial grinding to achieve a flat surface suitable for polishing. Joint filling and crack repair are typically quoted separately at $3-$8 per linear foot.

Timing matters for Moncton garage projects. Schedule polishing during late summer through fall when concrete moisture content is lowest and workshop ventilation is easier. Spring polishing can be problematic due to elevated moisture from snowmelt raising the water table beneath your slab.

Professional polishing requires specialized equipment — planetary grinders, diamond tooling systems, dust collection, and densifier application equipment that cost $50,000-$100,000. This isn't a DIY project. However, the results last 15-20 years with minimal maintenance beyond occasional resealing every 3-5 years ($1-$2/sq ft).

Get quotes from contractors experienced with Maritime concrete conditions — coastal moisture and freeze-thaw cycles create challenges that inland contractors may not understand. Verify that your contractor carries WorkSafeNB coverage and general liability insurance, especially important given the dust and chemical exposure involved in concrete polishing.

Need help finding a concrete polishing professional in the Moncton area? The New Brunswick Construction Network can connect you with experienced contractors who understand Maritime concrete conditions and can provide accurate quotes for your specific garage or workshop space.