ConcreteFinder
Verified listing

Cornerstone Waterproofing & Foundation Repair

Foundations & Underpinning in East York

Last updated: By ConcreteFinder Research Team

Cornerstone Waterproofing & Foundation Repair project photo
  • Cornerstone Waterproofing & Foundation Repair photo 2

About Cornerstone Waterproofing & Foundation Repair

ConcreteFinder lists Cornerstone Waterproofing & Foundation Repair as a foundation contractor serving East York, rated 5.0★ across 9 Google reviews.

Toronto's trusted waterproofing and foundation repair specialists since 2004. We fix wet basements, cracks, and drainage, backed by a 20-year warranty.

Services

  • Foundations & Underpinning
  • Concrete Contractors
  • About Cornerstone
  • Customer Reviews
  • Waterproofing
  • Underpinning
  • Foundation Repair
  • Concrete Floors
  • Basement Entrances
  • Floor Drains

What customers say

Highlights via Google reviews. Ratings are set by reviewers, not ConcreteFinder.

  • 2 years ago

    I recently hired Cornerstone for my basement, and I couldn't be happier with the results. Their team was professional, efficient, and the quality of their waterproofing work exceeded my expectations. No more leaks, and my basement is now dry even…

    Benjamin· via Google reviews

  • 2 years ago

    I recently hired Corner Stone Waterproofing for a project, and I couldn't be more pleased with their services. From start to finish, they demonstrated the utmost professionalism and expertise in waterproofing. Their team was punctual, efficient, and left no mess…

    Ashley· via Google reviews

  • 13 years ago

    My wife and I just had our first child a few months ago, and it became quickly evident that after the arrival of our son that we were going to need more space as we both work from home. Our…

    David· via Google reviews

  • 6 years ago

    Extremely professional and knowledgeable! Job site left clean and neat! Highly recommend them! We had a major leak and since the job was complete, not a drop of water.

    Lori· via Google reviews

  • 2 years ago

    Fantastic service! Professional team, quick turnaround, and excellent results. Highly recommend!

    samantha· via Google reviews

Hours

Opening hours for Cornerstone Waterproofing & Foundation Repair
Monday7 a.m.–5 p.m.
Tuesday7 a.m.–5 p.m.
Wednesday7 a.m.–5 p.m.
Thursday7 a.m.–5 p.m.
Friday7 a.m.–5 p.m.
SaturdayClosed
SundayClosed

Contact Cornerstone Waterproofing & Foundation Repair

Questions to ask your contractor

  • Will you provide stamped engineering drawings and pull the building permit? Engineering and permit cost benchmarks
  • Is this underpinning or bench footing, and why is that right for my house?
  • How do you protect the existing structure and the neighbours during excavation?
  • What waterproofing and drainage go in while the foundation is open?
  • What is the inspection schedule, and who books the city inspections?

Comparing quotes? ConcreteFinder matches you with up to 3 local pros, free.

Comparing quotes? Get up to 3 free

No obligation. We match you with exclusive, local pros, so you compare and choose.

Get Quotes

Similar pros nearby

Cornerstone Waterproofing & Foundation Repair: frequently asked questions

Is Cornerstone Waterproofing & Foundation Repair well reviewed?

Cornerstone Waterproofing & Foundation Repair holds a 5.0-star Google rating across 9 reviews. Based on ConcreteFinder's analysis of Google review data, that is a strong score for a foundation contractor in the Greater Toronto Area. We always recommend comparing at least three quotes before you hire.

Where does Cornerstone Waterproofing & Foundation Repair operate?

Cornerstone Waterproofing & Foundation Repair works out of East York in the East York area and serves surrounding Greater Toronto Area neighbourhoods. Its listed address is 1692 Danforth Ave, Toronto, ON M4C 1H8.

How do I get a quote from Cornerstone Waterproofing & Foundation Repair?

You can contact Cornerstone Waterproofing & Foundation Repair directly at (416) 879-4593 or through its website. To compare options side by side, request quotes through ConcreteFinder and we will match you with up to three vetted foundation contractors serving East York, at no cost.

What does Cornerstone Waterproofing & Foundation Repair charge for foundation and underpinning work?

Cornerstone Waterproofing & Foundation Repair sets its own prices, but as a market benchmark basement underpinning - structural work only runs $350 to $650 per linear foot across the GTA, according to Strong Basements. Add 13% HST, and request an itemized quote for numbers specific to your project.