Basement floors · Toronto and the GTA · Year round
Basement Floor Repair Toronto: Crack Repair, Resurfacing and Leveling
Cracked, uneven, damp or dusting? We fix the slab, and tell you straight when the problem is water.
Toronto Concrete Repairs repairs cracks, levels low spots, resurfaces and coats worn floors, and replaces failed basement slabs with a new pour over a vapour barrier. Interior work carries on all winter.
Quick answer
What does basement floor repair cost in Toronto?
Repairs to cracks, spalled patches and low areas on a sound basement slab start around $2,000. Resurfacing a worn floor with a bonded overlay runs about $7 to $10 per square foot. Epoxy runs about $3 to $8 and polyaspartic about $6 to $12 per square foot on floors under about 2,000 square feet. Replacing a failed slab with a new pour over gravel and a vapour barrier costs about $30 per square foot, and access, carrying concrete up a basement stair, is a big part of that. Most basement floors can be repaired, resurfaced or coated; replacement is for slabs that have heaved, broken through or sit damp with no vapour barrier. Every job carries a written warranty: ten years on coatings, three years on overlays and new concrete.
Local knowledge
Why basement floors fail in Toronto homes
Most Toronto basements were never built as living space. The slab was poured thin, with no vapour barrier or reinforcement, over whatever soil was there. Decades later, the floor shows it.
- Thin, old slabs. Many pre 1970 Toronto homes have basement floors two to three inches thick that crack under normal loads.
- No vapour barrier. Ground moisture wicks up through the concrete: damp spots, white efflorescence, bubbling paint, floors that never feel dry.
- Clay soil and water pressure. Toronto's clay holds water, pushing it through cracks and cold joints and heaving sections of slab.
- Settlement. Where the base was poorly compacted or washed out, sections drop. Two or three inches across a room is common in older houses.
- Weak surfaces. Old mixes dust every time you sweep, and salt tracked in scales the floor near entrances and cold cellars.
The honest call
Is it the floor, or is it the water?
Waterproofing companies and concrete companies each answer this in their own favour. We look at both, so you get a straight answer.
Repair, level or resurface
- Hairline or shrinkage cracks that don't leak
- Dusting, flaking or a failed paint finish
- One low area, a hump at a joint, or a room slightly out of level
- Slab is dry and sounds solid when tapped
Fixed in one to three days, ready for flooring or a coating.
Fix the moisture first
- Damp patches that come and go with the weather
- Efflorescence, bubbling paint, a musty smell
- Water at the wall to floor joint after rain
- Sump pump running constantly, or no sump
A coating over a wet slab peels. The moisture is dealt with first, then the floor.
New slab
- Slab heaved, broken through or hollow underneath
- Thin old floor with no barrier that stays damp
- Drops of two inches or more across the room
- You want a lowered floor or drainage built in anyway
Old slab out, gravel, vapour barrier, reinforced new pour. The permanent fix.
How we fix it
Basement floor repair services
From a crack repair to a full new slab. Your quote recommends the one that fits your floor, and says why.
Crack repair
Cracks opened, cleaned and filled with a material matched to the crack. Leaking cracks injected so water stops coming through.
Repairs from $2,000
Floor levelling
Low spots and out of level rooms brought flat with cement based self levelling underlayment, ready for tile, vinyl or laminate.
Priced from photosResurfacing and overlays
A sound but worn, dusting slab gets a bonded overlay: smooth, sealed and ready to finish, without a new floor.
About $7 to $10 per sq ft
Epoxy and polyaspartic
Moisture tested, repaired, ground and coated. Solid, flake or metallic, for rec rooms, laundry rooms and workshops.
Epoxy $3 to $8 · polyaspartic $6 to $12 per sq ft
Polished basement floors
Ground, densified and polished so the concrete itself is the finished floor. Nothing to peel.
Priced after a site lookFull floor replacement
Old slab out, base compacted with gravel, vapour barrier, reinforced new pour. Interior weeping tile and a sump connection can go in at the same time.
About $30 per sq ftNeed more ceiling height? Where the foundation allows, we pour the new floor lower than the old one within the existing footings, without underpinning. If your target height means the footings have to be dropped, that's an underpinning project, and we'll tell you before you spend anything.
Budgeting
Basement floor repair prices in Toronto
| Type of work | Typical cost | What moves the number |
|---|---|---|
| Crack and patch repair | From $2,000 | How many cracks, width, whether they leak and need injection |
| Floor levelling | Priced from photos | Depth of the low spots, area, whether sections need rebuilding |
| Resurfacing and overlay | $7 to $10 per sq ft | Slab condition, grinding and prep, finish chosen |
| Epoxy coating | $3 to $8 per sq ft | System, flake or solid colour, moisture mitigation primer if needed |
| Polyaspartic coating | $6 to $12 per sq ft | System and colour; faster return to use than epoxy |
| Full slab replacement | About $30 per sq ft | Access for removal, excavation depth, vapour barrier, drainage, reinforcement |
Before HST. Coating rates apply to floors under about 2,000 square feet. Basement work is priced by access as much as size: carrying broken concrete up a narrow stair and gravel down it is a large part of a replacement. Text three photos for a written figure for your floor.
Real work
Basement floors we've repaired, coated and replaced
Basement entrance resurfaced, Toronto. The steps and landing down to the floor take the same salt and water damage.
How it works
From photos to a finished floor
Photos or a visit
Text three photos, or we come and look. Damp floors get a moisture check before we recommend anything.
Written quote
What we recommend and why, itemised, usually within one business day of your photos.
Prep and protection
Furniture and finishes protected, dust controlled with vacuum grinding, old coatings and adhesive removed.
The work
Cracks repaired, floor levelled, resurfaced or coated, or old slab out and new poured over gravel and a vapour barrier.
Cure and handover
Dates for weight and flooring, a walkthrough, photos of every stage and your written warranty.
Reviews
What homeowners say about their basement floors
★★★★★ 4.8 · 100+ Google reviews
★★★★★
Fixed the floor that was bubbling and damp
"We are new homeowners and had already made the mistake of going with bad contractors on our basement. Hubert came out personally and gave a thorough, honest quote in person. His team ripped up the existing flooring and concrete and fixed the basement floor that was bubbling and damp in many spots. Very happy with the new basement epoxy floor and stairs."
★★★★★
The messy job others wouldn't take
"I needed to finish a 600 sq ft basement renovation with a very uneven exposed concrete floor, a two to three inch difference in some corners, and wanted to maximize ceiling height without underpinning. Many contractors felt it was too messy. Hubert and his team took it on and delivered."
★★★★★
Basement floor replaced in Etobicoke
"The guys at Toronto Concrete Repair did a great job replacing our basement floor in our home in Etobicoke. Wonderful team, everyone was friendly and professional. Definitely recommend."
Questions
Basement floor repair: common questions
Repairs to cracks and low areas on a sound slab start around $2,000. Resurfacing with a bonded overlay runs about $7 to $10 per square foot. Epoxy runs about $3 to $8 and polyaspartic about $6 to $12 per square foot on floors under about 2,000 square feet. A full slab replacement over a vapour barrier costs about $30 per square foot. Access drives basement pricing as much as size. Text three photos for a written figure.
Yes. Open cracks let ground moisture and soil gas into the basement, collect dirt, and widen over time. Hairline cracks are sealed; wider or leaking cracks are routed and filled, or injected so water stops. It should be done before any flooring or coating goes down.
Usually. If the slab is sound and dry, low spots are corrected with cement based self levelling underlayment, giving a flat surface for tile, vinyl or laminate. Drops of two inches or more, or areas that have heaved, are rebuilt or replaced instead.
No, and we won't. A coating over a wet slab peels within a season. We find where the moisture is coming from first. Sometimes a moisture mitigation primer under the coating is enough; sometimes the floor needs a vapour barrier, which means a new slab; and sometimes the fix is drainage, built in with interior weeping tile and a sump connection. See basement epoxy floors for how we moisture test first.
A bonded overlay over a sound slab, yes. A thick new slab over an old one that's cracking or damp, no, because the problem underneath comes through. For a failed floor we remove the old slab, excavate, add gravel and a vapour barrier, and pour new.
Where the foundation allows, we pour the new floor lower than the old one within the existing footings, which is how many Toronto basements gain height without underpinning. If your target height means dropping the footings, that's an underpinning project, and we'll tell you before you spend anything.
Crack repair, levelling, resurfacing and coatings are usually one to three days on site. A full replacement typically takes one to two weeks including removal, base work, the pour and curing before flooring goes down. Basement work carries on year round.
A written warranty on every job: ten years on coatings depending on the surface, and three years on overlays and new concrete. The terms are in your quote before you sign, and we photograph every stage of the work for your records.
We're based in Mississauga and repair basement floors across Toronto, Etobicoke, North York, East York, Scarborough, Vaughan, Brampton, Oakville, Burlington, Hamilton, Richmond Hill, Markham, Newmarket, Pickering and Oshawa. If your city isn't listed, ask.
Service area
Basement floor repair across Toronto and the GTA
Based in Mississauga, repairing basement floors across the Greater Toronto Area, year round.
About Toronto Concrete Repairs. Toronto Concrete Repairs (legal name Toronto Concrete Repair Inc.) is a Mississauga based concrete repair, resurfacing and replacement contractor serving Toronto and the GTA since 2015. Our only website is torontoconcreterepairs.ca and our phone number is 416 471 3068. We are not affiliated with TCR Pro, tcrpro.ca, or any other company using a similar name.
Free quote
Get a straight answer on your basement floor
Text three photos: a wide shot of the floor, the worst crack or damp area up close, and any low or heaved spot. We'll tell you whether it's a repair, a resurfacing, a moisture problem or a new slab, and price it in writing, usually within one business day.
Free photo quotes and site visits · Mon to Sat, 7am to 7pm