Basement waterproofing in Waterdown.
Flash floods in 2019 and 2024, old stone basements and a lot of brand-new ones. We find where water gets into your Waterdown home and stop it, backed by the No Leak Guarantee.

Flash floods on the escarpment edge.
On July 6, 2019, a slow-moving storm dropped 50 to 100 mm or more on Waterdown, flooding a plaza on Dundas Street and leaving the memorial park completely under water. In mid-July 2024, another storm brought 60 to 80 mm to Flamborough over two days.
Grindstone Creek starts in wetlands above the escarpment and runs through Waterdown before dropping over the falls in Smokey Hollow, and the natural areas in its watershed help soak up runoff. As subdivisions replace fields, more of that rain runs off roofs and driveways instead, so grading and downspouts matter more than ever.
Newer homes in Waterdown North and South mostly leak at cracks and window wells. The old stone basements near Mill Street leak through the walls themselves as the mortar ages. Either way, we find the real entry point before we recommend anything.
Basement problems we fix most in Waterdown
- Leaking cracks in newer poured walls
- Window wells filling on new lots
- Damp stone walls in the old village
- Sump pumps that fell behind in 2019 or 2024
- Water at the floor-wall joint after a storm
- Downspouts draining toward the house
Where we work in Waterdown
We keep basements dry across Waterdown, including:
Waterdown questions, answered
Can I get Hamilton's flood protection grant in Waterdown?
Why does my window well fill with water?
Do I need a sump pump if I've never had water?
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 Waterdown.
Waterdown is a short drive 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.