Basement waterproofing in Dundas.
Dundas took the worst of the April 2017 storm, and its old stone basements have been fighting damp for a long time. We find where water gets into yours and stop it, backed by the No Leak Guarantee.

Where the valley collects the rain.
On April 20, 2017, a gauge near Dundas recorded 72.4 mm of rain, the most on any April day since records began in 1866. Dundas was hit hardest, with flooded basements, mudslides and about 10 streets closed. In July 2024, City crews were back dealing with flooding along Sydenham Creek and King Street.
It's the geography. Dundas sits at the foot of the escarpment, where Spencer Creek comes down over Webster's Falls and is joined by Sydenham, Spring and Ancaster creeks on its way to Cootes Paradise. The Hamilton Conservation Authority even runs a stormwater project here because paved surfaces send so much runoff into Spencer Creek.
Add the town's many 1800s homes on stone foundations, and damp basements are common. Stone walls let water through as the mortar wears away, and many older homes have little or no working drainage at the footing. We repair the wall, add drainage where it's needed, and stand behind it with the No Leak Guarantee.
Basement problems we fix most in Dundas
- Sandy, crumbling mortar in stone foundations
- Water through the walls after heavy rain
- Leaking cracks in poured and block walls
- Sump pumps that can't keep up with runoff
- Window wells filling in a storm
- Musty smell and white staining in older basements
Where we work in Dundas
We keep basements dry across Dundas, including:
Dundas questions, answered
Can I get the City of Hamilton flood protection grant in Dundas?
Should I disconnect my downspouts?
Can a stone basement ever be truly dry?
Walls moving, not just leaking?

Underpinning, bowing walls and foundation rebuilds go to AVH Foundations, our structural crew. Same company, same phone number.
What homeowners say
Basement Worx is owned and run by AVH Foundations, so these are AVH reviews. Straight from Google.
“Perfect! Alex came same day to assess the damage and what needed to be done after I was ghosted by an unscrupulous contractor. Returned as agreed, on time, and completed the job beyond my expectations. Would highly recommend.”
“They truly care about their customers and take pride in their work. The crew was friendly and knowledgeable, and they used top-notch materials. My foundation problems were resolved efficiently, and I appreciate their dedication to quality.”
“Alex and his team were fantastic. Super quick response, same-day service. He explained and educated me. Would highly recommend.”
Also working near Dundas.
Dundas is minutes from our Hamilton base. We also keep basements dry in these nearby towns.
Basement leak or foundation issue? Don't wait till it's too late.
A free, no-pressure quote from the people who'll actually do the work.