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Waterproofing in Greater Toronto Area, ON
Waterproofing is supposed to solve the problem, not make you chase it again. But in many homes, leaks keep coming back—even after work has already been done. This usually happens because the wrong materials were used, areas were missed, or the job was rushed. Corners get cut, and the results don’t hold up.
We understand how frustrating that is. You spend money expecting peace of mind, but instead, you’re stuck with the same issue and new damage.
Heritage Masonry and Construction provides waterproofing in Greater Toronto Area, ON, that focuses on doing it right the first time. We don’t just cover up the symptoms; we find and fix the real cause of the problem.
Here’s how we do things differently:
- Inspect every vulnerable spot, not just where water is visible.
- Use high-quality materials made for Ontario weather.
- Pay attention to weak points like corners, seams, and foundation joints.
- Apply waterproofing systems with care and proper curing time.
- Test the results to make sure the leak is fully sealed.
Mold and Dampness Keep Coming Back When the Job’s Incomplete
Even if water stops for a while, dampness, musty smells, or mold can return. This usually means moisture is still getting in somewhere, or it never fully left. If certain areas are left unsealed or ventilation is ignored, the problem doesn’t just stay, it grows.
This isn’t just about damage to walls or floors. It can affect indoor air, ruin belongings, and trigger health problems, especially in kids or older adults.
We go beyond surface-level fixes. We take the time to seal all gaps, track hidden moisture sources, and, when needed, improve ventilation to keep the space dry for the long run.
What’s included in our complete waterproofing approach:
- Moisture checks in walls, floors, and air.
- Full sealing, including behind baseboards and inside utility openings.
- Options for both interior and exterior systems.
- Added ventilation guidance to prevent future buildup.
- Honest feedback if a different solution is needed.
What Makes Our Waterproofing Different

We Fix the Cause, Not Just the Signs
Some companies seal what’s visible and leave the rest. We look deeper, so the problem doesn’t return a few months later.

No Guesswork or Gaps
You’ll know exactly what we’re doing, why it matters, and how it protects your home. We walk through the whole plan, start to finish.

Made for Local Homes
We choose materials and methods that work for basements, foundations, and walls in GTA homes, especially with freeze-thaw weather.
Frequently Asked Questions
It usually means the job wasn’t done completely. Some areas might’ve been missed, or the wrong materials were used. We check everything, including spots that get overlooked.
Yes, if it’s done right. We make sure water doesn’t come back in and help you improve airflow so moisture doesn’t build up inside.
We inspect your home carefully, inside and out. That includes checking the grade, cracks, pipes, and hidden spaces where moisture can sneak in.