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Cornerstone Waterproofing & Foundation RepairConcrete contractor in East York, ON

Cornerstone Waterproofing & Foundation Repair is a concrete contractor in East York, ON, rated 5.0 from 9 Google reviews. Open Monday to Saturday.

East York, ON0 paid placements in any rankingHow we rank

Call (416) 879-4593Website ↗

Key facts

Key facts about Cornerstone Waterproofing & Foundation Repair
Phone(416) 879-4593
Websitetorontounderpin.com
HoursMonday to Saturday: 8 AM – 5 PM
Google rating5.0 from 9 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • Concretemain tradeGoogle main category
  • Foundation Repairbusiness name

Service area

Serves East York and 11 towns within 40 km: Toronto, Willowdale, North York, Scarborough, Concord, Vaughan, Etobicoke, Richmond Hill, Markham, Mississauga and Pickering.

Based in East York, ONView on map

Opening hours

Opening hours for Cornerstone Waterproofing & Foundation Repair
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
Saturday8 AM – 5 PM
SundayClosed
  • Open evenings — no
  • Open Saturdays
  • Open Sundays — no

Typical concrete work prices

Typical concrete work prices
JobLowTypicalHigh
Concrete drivewayPer driveway: typical range of customer-reported projects (about $8 to $20 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$3,790CA$8,990CA$20,380

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Reviews

ContractorsRanked reviews

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Google

5.0from 9 Google reviews

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Questions about Cornerstone Waterproofing & Foundation Repair

What are Cornerstone Waterproofing & Foundation Repair’s hours?

Cornerstone Waterproofing & Foundation Repair is open Monday to Saturday. Its listed hours are Monday to Saturday, 8 AM – 5 PM. On Saturdays it is open 8 AM to 5 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Cornerstone Waterproofing & Foundation Repair serve?

Serves East York and 11 towns within 40 km: Toronto, Willowdale, North York, Scarborough, Concord, Vaughan, Etobicoke, Richmond Hill, Markham, Mississauga and Pickering. The list is based on the business's location and the usual service radius for concrete work. Confirm your address is covered when you call.

What do Google reviews say about Cornerstone Waterproofing & Foundation Repair?

Cornerstone Waterproofing & Foundation Repair has a rating of 5.0 from 9 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Cornerstone Waterproofing & Foundation Repair?

Call Cornerstone Waterproofing & Foundation Repair on (416) 879-4593. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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