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.

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″). [...]

Sump Pump Installation

Removal of pavement and concrete is sometimes necessary during outside excavation waterproofing. Additionally we provide pavement and concrete removal services. Please contact us for our hourly rate.

Inside Drainage System

This method of waterproofing is used for both block and poured concrete foundations. A non-digging technique that involves the installation of drain pipes under the floor. The leaking water is directed into these drain pipes. Delta membranes are fitted against the wall for added protection.

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!