Waterproofing · Durham Region

Stop water.
Protect your foundation.

Water in your basement is more than a nuisance — it leads to structural damage, mold, and costly repairs. Wilworks provides permanent waterproofing solutions across Durham Region, backed by licensed workmanship and 25 years of experience.

Family owned since 2000 Fully insured & WSIB Lifetime warranty
Exterior Waterproofing · Oshawa
Interior Waterproofing · Durham Region
25+ Years in Durham
500+ Homes waterproofed
Lifetime Warranty
Warning signs

Moisture shows up
before major leaks.

If you notice any of the following in your basement or crawl space, schedule an assessment before the problem gets worse.

Book a free assessment
Damp or musty odours

In the basement or crawl space — often the first sign of moisture intrusion before visible staining appears.

Water stains or mold growth

Visible staining on walls or floors, or any mold growth — indicates active or recurring moisture entry.

Foundation cracks

Vertical, horizontal, or step cracks in poured concrete or block foundations allowing moisture to seep in.

Pooling water near the foundation

Water collecting against the foundation after rain indicates drainage issues that will eventually force water inside.

Efflorescence on walls

White chalky deposits on concrete or block walls — a clear indicator that water is moving through the foundation.

Our solutions

Every waterproofing situation,
properly solved.

Exterior Waterproofing

Protects the foundation at the source — exposing the wall, repairing cracks, applying membranes, and restoring drainage. The most comprehensive solution available.

Best forPersistent wall leaks, accessible perimeters, walk-outs
Timeline5–10 days depending on access
WarrantyLifetime on membrane and drainage
Foundation Crack Repair

Stops active leaks with routed repairs, polyurethane injection, or exterior patch and membrane — depending on the crack type and access available.

Best forIsolated cracks, hairline leaks, step cracks
TimelineSame day to 2 days
WarrantyLifetime on repaired areas
Sump Pumps & Drainage

Interior drain channels, basins, primary and backup pumps, and discharge lines. The most reliable long-term solution for homes with groundwater or hydrostatic pressure.

Best forHomes without a sump, failed pumps, recurring seepage
Timeline1 day for standard systems
WarrantyManufacturer + Wilworks workmanship
The process

From assessment
to dry basement.

01
Assessment

We start with a full foundation inspection, moisture mapping, and photos of any concerns. You get a clear picture of what's happening before any work begins.

02
Plan & permit

We prepare a detailed scope and quote, then coordinate any permits or inspections required — so you don't have to chase paperwork.

03
Installation

Licensed trades carry out the waterproofing with proper dust control, daily cleanup, and proven methods. We treat your home like our own.

04
Final walk-through

We test the system, review photos with you, and provide your lifetime warranty documentation. Your basement is now ready to finish or use.

Recent work

Waterproofing projects
across Durham Region.

Exterior Waterproofing · Oshawa
Interior Waterproofing · Durham Region
Sump Pump Installation · North Oshawa
Get in touch

Noticed signs of water
in your basement?
Let's talk.

Free assessments, no-pressure quotes. We'll inspect your foundation honestly and tell you exactly what's needed before any work begins.

Based in Oshawa, Ontario
Serving Oshawa · Whitby · Ajax · Pickering · Courtice · Bowmanville
Warranty Lifetime on all waterproofing work