Mon-Sat 9:00 AM - 5:00 PM
Service Area
Leaking basement? We inspect Markham homes for free, diagnose the source, and fix it right — backed by warranty.
Local Expertise
Markham's waterproofing landscape reflects its layered development history. The heritage village of Unionville — with century-old brick and stone foundations — requires specialized techniques entirely different from the modern poured-concrete homes in Cornell and Berczy. Central Markham's 1980s-90s subdivisions in Milliken, Cachet, and Angus Glen sit on heavy clay soil deposited by glacial Lake Iroquois, creating intense hydrostatic pressure during wet seasons. The Rouge River and its tributaries carve through the city's eastern edge, elevating water tables in adjacent neighborhoods. In newer east-end developments, former farmland was regraded with compacted fill that drains poorly and settles unevenly, cracking foundations within the first decade of construction.
Neighbourhoods we serve: Unionville, Thornhill (Markham), Cornell, Berczy, Milliken, Cachet, Angus Glen, and surrounding areas.
Does This Sound Familiar?
These are the issues Markham homeowners most often call us about. If any of these match what you're seeing, we can help.
What We Fix
From hairline cracks to full exterior excavation — we handle every type of basement water problem.
Complete interior drainage systems, sealants, and sump pumps to manage water that's already entering your basement.
Learn MoreComprehensive exterior foundation protection with membranes and drainage to prevent water from reaching your basement.
Learn MoreProfessional crack injection and repair services to seal foundation cracks and prevent water intrusion.
Learn MoreReliable sump pump systems with battery backup to protect your basement from flooding and water damage.
Learn MoreProfessional weeping tile and French drain systems to redirect water away from your foundation.
Learn MorePrevent sewage backup with professional backwater valve installation — eligible for government rebates up to $1,250.
Learn MoreGovernment Rebate
Available to York Region homeowners for backwater valve installation. Some Markham homeowners may qualify for additional municipal programs — we'll confirm at your inspection. We handle the paperwork and make sure your installation qualifies.
Common Questions
Reviews
“Outstanding job! My basement is finally dry thanks to your team. No more musty smell or moisture problems. A+ service!”
“From the initial appointment to final inspection, service was exceptional. Prompt, professional, and results exceeded expectations.”
“Professional and friendly staff. They solved our leaky basement in no time. The results were fantastic. Basement has been leak-free since the work was done.”
How It Works
We come to your Markham home, find the source of the problem, and tell you exactly what needs to be done.
You get a written quote with everything itemized. No hidden fees, no upselling work you don't need.
Our licensed crew does the work. Most jobs are completed in a day or two with minimal disruption to your home.
Your repair is covered by our written warranty. If water returns through the repaired area, we come back.
We also serve nearby areas:
