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A Wee Little Bit About Us

During an era when basements were used for coal, food storage and the occasional hogmánay we were one of the first Toronto contractors to realize the benefits of a fully dry, fully usable basement way back in the early 1970’s.

1970 – 1975

The Seed Is Planted

“As dearcáin bheaga a fhásann na crainn is airde – mighty oaks from little acorns grow”. John MacRae begins specializing in below-grade concrete waterproofing projects with his father.

1975 – 1985


John and Noreen MacRae welcome three children into the world, and although times were tough in the early years they always found a way to make ends meet. GJ MacRae slowly begins to gain traction.

1985 – 1995

The Next Generation

The kids become involved on the weekends helping Dad clean up job sites while they study and nibble on timbits. Gavin shows a keen interest in masonry and the seed continues to grow.

1995 – 2000

A New Century

GJ MacRae becomes a full service foundation repair company specializing in basement waterproofing, structural foundation repairs and underpinning. The kids work with the crews during the summer and the collective interest continues to expand.

2000 – 2005

The Transition

More specialized projects become attractive as our expertise and experience grows. Platon replaces tintest, weeping tile detail changes within the OBC, John transitions to sales and Gavin starts his first crew.

2005 – Present

Four Decades Later

45 years pass since the seed was planted and the mighty oak still grows! GJ MacRae continues to set the bar in all phases of below grade waterproofing, structural foundation repair, underpinning and heritage foundation restoration.

Why Choose Us?

Many years of consistent projects, repairs and service has allowed GJ MacRae Foundation Repair to stand the test of time. With over 10,000+ completed projects no one in the GTA is more qualified for your foundation repair project.
    We are the first and only foundation repair company that covers all phases of waterproofing, underpinning, structure and drainage related solutions.
  • 2 Meticulous Hand Excavation
    Residential hand excavation is our thing! Specializing in tight access-projects coupled with a low-footprint repair method we return your grounds back to their original state.
  • 3 Family Owned and Operated
    The only active family-owned and operated basement waterproofing and underpinning company in the GTA. Our history and reliability in the industry is widely recognized.
  • 4 We Are The Information People
    We are the information people! Give us a call for expert advice on all phases of weeping tile, sump box, waterproofing, structural and underpinning related projects.
  • 5 Knowledge, Passion, Longevity
    We are not general contractors, nor are we a media company, nor are we plumbers! Foundation repair is all we do. Let our experience and expertise protect you and your home for many years to come!
    Surpassing upwards of 10,000+ completed projects throughout our nearly five-decades of repairs in the GTA. No other waterproofing or residential structural repair company has been here longer, guaranteed.

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(905) 824-2557