Concrete Restoration & Repair in Montreal
Foundations, steps, walkways, parging, crack injections, resurfacing, sealing & waterproofing. RBQ-licensed • Bilingual • Residential & Commercial.
Core Concrete Services
Foundation Crack Repair
Epoxy (structural) & polyurethane (water-stop) injections, parging (crépi) and targeted rebuilds to stabilize and waterproof foundations.
Step & Stair Rebuild
Remove delamination, form crisp edges, anchor railings, and finish with high-strength repair mortars rated for de-icing salts.
Walkway & Slab Leveling
Re-level sunken slabs, repair trip edges, fill voids, and improve drainage to prevent recurrent cracking and ponding.
Resurfacing & Parging
Polymer-modified overlays that bond to old concrete to correct spalls and staining for a clean, uniform finish.
Sealers & Coatings
Penetrating sealers for driveways & walkways; clear protective coatings for steps & patios to reduce freeze–thaw damage.
Waterproofing
Exterior membranes & drains, interior crystalline coatings, and crack injections for dry basements & garages.
Why Choose NDG for Concrete
Right materials for Montreal: cleaners, masonry repair, cement additives, concrete repair, sealers/coatings, and waterproofing products chosen for durability.
Detail-driven prep: routing, cleaning, bonding agents, formed edges, and proper cure windows for long-lasting results.
Safety & cleanliness: fenced-off work areas, dust & debris control, daily clean-ups, respectful crews.
Transparent estimates: clear scope, materials, milestones & warranty.
Featured Gallery

Bilingual Overview
Montreal’s freeze–thaw cycles punish concrete. We repair, protect, and beautify foundations, steps, and slabs with compatible mixes and pro methods.
Our Process
- Inspection & Estimate: diagnose causes (movement, salts, drainage) and scope the fix.
- Prep: route/clean cracks, remove delamination, set forms, choose epoxy/PU injections where needed.
- Repair: high-strength mortars, overlays, parging, rebar treatment, re-level slabs.
- Protect: sealers, coatings, and waterproofing details; advise on grading & drainage.
- Handover: walkthrough, care tips & warranty.
Ready to Start?
Tell us about your concrete project — foundation, steps, walkway, or waterproofing — and we’ll reply quickly with a clear estimate.