services we offer

With over 20 years of service in our industry, we are the pros.

we are proud of

what we do

Being in service to others is what brings true happiness.

Your home is your most valuable asset…and each home and basement is different. Your foundation may be fieldstone, cement, concrete block or poured cement walls. All experts agree that the most common water entry points are over the foundation, through the footings, and down the walls resulting in basement leaks, moldy basement, and flooding problems. If any of these sound familiar…you may require any of the following:


rownseal Inc. is a family owned and operated business, successfully serving clients in Southern Ontario for over 20 years. 100% of operation is foundation waterproofing & repairs. We are specialists and offer several different solutions to meet your needs. We employ TOP OF THE LINE PRODUCTS, and will give you the best case solution…every time!

Offering both interior and exterior waterproofing options, our customer base is extensive and consists of residential, contractors, real estate, insurance, home inspectors, property management, government shelters & youth centres, home service clubs.

All work is backed by a 25 year transferable warranty on exterior and interior work.

Outside Excavation and Waterproofing

This process involves excavating and sealing from outside. These are more traditional methods of waterproofing. The walls are sealed with a combination of heavy duty (trowel on) tar, and asphalt membranes. Delta membrane or high density Styrofoam (SM) is used to insulate the sealing products.

Polyurethane Crack Injection

The best solution for most cracks on poured concrete foundations,is injecting expanding polyurethane into the crack from the inside. It penetrates into hairline cracks and contact with water makes it forcefully expand up to 20 times its volume to completely fill even wide cracks (up to 1/2″). [...]

Rod Hole Repair

Rod Holes are built into every basement as part of the foundation, sometimes the hole is not properly closed and can cause leaks. In order to fix this issue these are holes through poured concrete walls are normally filled with cork or cement.

Brick and Block Repair

Brick and block can be damaged underground (often close to ground level) due to excessive moisture. We waterproof the damaged areas with protective coatings. This helps to restore the brick or block to its original condition.

Look no further for professional waterproofing

We value hard work, dedication and a relentless need to be the best answer for your home’s waterproofing and foundation repair needs.



Get in touch with us today and see the difference that a personal touch and pride in our work can provide. We guarantee that you will be satisfied with our work, and that your home will be secure from water damage for decades to come!