Cracked Foundation?
We have simple permanent solutions for your foundation problems!

Nasty Crawl Space?
We provide reliable crawl space encapsulation and repair.

Sump Pump Issues? We'll get the water out, even when the power goes out.


Rooms too cold (or hot)?
We fix uncomfortable homes with attic insulation and more.

Expert Foundation Specialists
You Can Trust
Since 1978
Contact us for a Free Estimate

Expert Foundation Repair Contractors Serving Ottawa and Nearby in Ontario

We provide foundation crack repair, attic insulation, and crawl space repair in Greater Ottawa

If you have a crack in your foundation, need foundation walls waterproofed, or have any other foundation repair needs, you've come to the right place. The Foundation Guys Inc. has been serving Ontario since 1978, and we are proud to be your local foundation contractors for the Ottawa, Nepean, & Orleans areas.

The Foundation Guys Inc. is owned and operated by the father and son team of Dana and Jerry Sirois, both of whom have decades of experience in the foundation and masonry industries. The foundation is the most important part of your home, so when you notice settling or bowing in your foundation, you want a contractor you can trust. When you call us you can rest easy knowing that you're getting expert professional services.

To find out more about all of our services, including attic insulation, crawl space repair, basement waterproofing, and more, call us at 1-844-385-8867 or contact us online for a free estimate! We offer all our services in Ottawa, Nepean, Orleans and throughout the nearby areas.

Our sister company, Maple Leaf Radon Defence, also offers professional radon gas testing and radon gas mitigation services. Visit their site for more information about their services in your area, or click here to fill out their free estimate form.

Why Homeowners Choose Us

In Business Since 1978

Trained & Certified Servicemen

Patented, Proven Products

Our complete foundation repair services

If you have a foundation problem, you need an effective solution that you can count on to stand the test of time. At The Foundation Guys Inc., our complete line of foundation repair products includes foundation piers, helical deck piers, I-beams, wall reinforcing systems, and crawl space support jacks. Our experienced professionals from all round the Ottawa area will carefully evaluate your home and help you determine the best products to solve your foundation damage problems.

We are proud to be a member of the international Supportworks network, which provides us with industry leading products and training to help us serve you best. All our foundation repair technicians are fully trained and we only used patented, proven effective products to repair your foundation.

Our customers think we're great

Restore your home's foundation with The Foundation Guys Inc. today

If you have cracks in foundation walls and floors, bowing walls, foundation settlement, or any other problem, The Foundation Guys Inc. is here to help. We have the right solution for all types of foundation problems, and we can help you restore value and safety to your home.

Call us today at 1-844-385-8867 to get started on a customized solution for your home with a free estimate. We proudly serve in Ottawa, Nepean, Orleans, Kanata, Gloucester, Richmond, Smiths Falls, Carleton Place, Vanier, Renfrew and throughout the surrounding areas.

Ottawa's attic insulation specialist offering cellulose insulation & more

Not only do we specialize in foundation repair services, but we also offer reliable attic insulation services to keep your Nepean home comfortable all year round. More often than not, you'll know when your attic is lacking in proper insulation. Insufficient attic insulation leads to climbing energy costs, uncomfortable temperatures, and uneven temperatures throughout your home.

Luckily, we are Kanata's trusted attic insulation contractor, offering countless solutions for your home comfort and efficiency needs.

Attic insulation products & services:

  • Rigid Foam Insulation
  • Blown-in Cellulose Insulation
  • Radiant Barriers
  • Duct Sealing
  • Duct Insulation
  • And more!

Effective crawl space encapsulation & repairs by The Foundation Guys Inc.

Have you noticed musty odors coming from your crawl space? Have you and your loved ones experienced increased allergy and asthma symptoms? Chances are, you have a crawl space problem on your hands. Your crawl space can become a breeding ground for mold and other contaminants that then travel throughout your home, leading to health issues and other problems.

Fortunately, The Foundation Guys Inc. offers a variety of crawl space repair services to homeowners throughout Ottawa, Nepean, Orleans, and nearby, including complete crawl space encapsulation.

Crawl space repair products & services:

  • Vapor Barriers
  • Crawl Space Encapsulation
  • Thermal Insulation
  • Structural Repairs
  • Energy-Efficient Dehumidifiers
  • And more!

From crawl space support jacks to high-performance dehumidifiers, The Foundation Guys Inc. has just what you need to keep your crawl space healthy and dry. Give us a call today at 1-844-385-8867 or fill out our online form to schedule a free crawl space repair estimate in Orleans, Nepean, Ottawa, Kanata, Gloucester, Richmond, Smiths Falls, Carleton Place, Vanier, Renfrew, and the surrounding areas.



View All Affiliations

Advanced Coatings Inc
Better Business Bureau
BNI Business Network
Foundation Supportworks
Maple Leaf Radon Defence
Orleans Chamber of Commerce
Basement Systems Certified

our service area

We serve the following areas

Our Locations:

The Foundation Guys Inc.
1294 Algoma Rd
Gloucester, ON K1B 3W8
Service Area
Free Estimate