Foundation Repair in Gatineau, Aylmer
We fix foundations across Gatineau and Aylmer — settlement, bowing walls, and structural cracks driven by local clay soil. RBQ licensed. 25+ years.
RBQ Licensed #5659-5812-01
25+ years in Gatineau
Owner on every job
ARE YOU EXPERIENCING THIS?
Cracks widening across your foundation walls
Basement floor heaving or sinking unevenly
Doors and windows sticking or no longer closing properly
Water seeping through the foundation after rain or snowmelt
Foundation repair in Gatineau — fixing the problem at the source
Foundation repair restores the structure when settlement, bowing walls, or cracking take over. The Gatineau-Aylmer region sits on Champlain Sea clay — soil that expands when wet and shrinks when dry, pushing against basement walls year after year.
Quebec's freeze-thaw cycles stress every foundation. Homes built between 1960 and 1985 across Aylmer, Hull, and central Gatineau face the highest risk. Most rely on unreinforced concrete block, which has little resistance to lateral clay pressure.
We've been repairing residential foundations across Gatineau, Cantley, Chelsea, and Wakefield for 25+ years. Every job starts with diagnosing the exact failure — then matching the fix to your soil profile and foundation type.

Signs your foundation needs structural repair
Horizontal cracks in poured concrete or block walls mean lateral soil pressure has pushed past the wall's capacity. They form at mid-height and signal the wall is bowing inward — a condition that gets worse with each freeze-thaw cycle.
Stair-step cracks along mortar joints in block foundations reveal differential settlement. One part of the footing is sinking faster than another. Vertical cracks that keep growing point to tilting, not uniform settling.
Inside the house, sticky doors, sloped floors, and gaps between walls and ceilings mean the foundation is still moving. When water infiltration shows up alongside these symptoms, the damage accelerates.
Any crack that keeps growing, leaks during wet weather, or runs horizontally across a basement wall needs a proper look. Catching it early prevents a small shift from becoming a full-wall failure.

How we repair structural problems in Gatineau foundations
We stabilize settling foundations by transferring the home's weight onto competent soil or bedrock below the problem layer. The method gets matched to the site, not pulled from a template.
Bowing or tilting basement walls get corrected with reinforcement sized to the wall's condition. We don't guess — we measure the movement, identify the cause, and pick the fix.
Crack repair seals individual fractures and restores the wall's water barrier. When cracks are driven by ongoing movement, sealing them treats the symptom — the foundation has to be stabilized first.
Most structural repairs need excavation around the foundation. We run mini excavators built for the narrow side yards common in Aylmer, Hull, and older Gatineau neighbourhoods. We reach your foundation without tearing up the rest of the property.

Protecting a repaired foundation against local clay soil
The Gatineau-Aylmer region sits on reactive marine clay. It's among the more challenging soils for residential foundations in Eastern Canada — it holds water, builds pressure, and moves with the seasons.
Surface patches cannot stop the hydrostatic pressure that builds every spring as frozen clay thaws from the top down. Meltwater trapped above the still-frozen layer below pushes against basement walls for weeks.
After the structural work, upgrading the waterproofing while the perimeter is open prevents the next round of moisture damage. Doing it now costs less than digging again later.
Replacing the french drain during the same dig ties drainage and barrier into one system. Doing below-grade work in a single excavation protects your landscaping and avoids a second dig down the road.

Our process
Free on-site inspection — we assess cracks, settlement, and wall deflection
Diagnose the failure mechanism: lateral pressure, differential settlement, or heave
Write a repair plan matched to your soil conditions and foundation type
Execute the structural repair — underpinning, wall stabilization, or reinforcement
Final inspection, backfill, and final walkthrough
Free on-site inspection — we assess cracks, settlement, and wall deflection
Diagnose the failure mechanism: lateral pressure, differential settlement, or heave
Write a repair plan matched to your soil conditions and foundation type
Execute the structural repair — underpinning, wall stabilization, or reinforcement
Final inspection, backfill, and final walkthrough
A $2,000 crack injection today can prevent a $25,000 excavation next year.
Frequently asked questions
What homeowners are saying
Real homeowners. Real projects. Honest results across Gatineau and Aylmer.
Co-designing and executing the landscaping near our house with Pascal was an easygoing exercise with a great result. He offered multiple good options and always listened to our feedback. He was able to explain the strategy behind his recommendations with an aesthetic eye: how the approach would look from the road, how to tie in various structural and colour elements of the house with the landscaping. The interlock included some contrasting colours and patterns, and the front driveway circle is a rarity. Highly recommended.
Kelvin Prosyk
June 2025
Renovatech is one of the best companies that I've ever hired to complete a renovation project. Pascal is transparent and honest when it comes to discussing design choices and pricing and the team work extremely hard to deliver quality work within established timelines. Would recommend to anyone and will continue to call them for my future projects.
Madyson Charbonneau
April 2025
I just had my daughter's birthday party in our new backyard. Everyone was really impressed, which is what inspired this review! Pascal really has a vision for these spaces. The project included cutting out a slope, putting in a beautiful wood retaining wall, new grass, cedars, and a fantastic interlock patio that runs from the deck around to the garage. I now have a decorated sheltered seating area under the overhanging 2nd floor. Everything came out so nice. I strongly recommend Renovatech for any landscaping needs.
C Vass
March 2025
We cannot recommend Pascal and the Renovatech team strongly enough. The quality of work is impeccable, the worksite is always kept clean, they manage projects to be the least disruptive and deliver what they say and when they say it. When we've had any issues with the house, they are extremely responsive — even showing up late on a Sunday evening of a long weekend to help with a surprise leak in our foundation. Cannot recommend the Renovatech team strongly enough.
Dan Benoit
April 2025
Renovatech — Pascal and Team — are my go-to contractors for all things around our home. From landscaping projects, to bathrooms, and basements they do it all. Fair and honest, and 100% transparent — they'll take the time to explain the various materials, pro-cons, and stick within your budget, and always perform high-quality workmanship.
Pej Javaheri
February 2025
Pascal from Rénovatech helped us plan new steps, choose materials, and explained how it could be accomplished using his vast array of equipment. He kept us informed when our initial plan was snagged due to production delays — but the product arrived just in time to meet our strict deadline. His team started excavating Thursday morning and by the end of the next day our entrance stairway was completed. The new steps look great! We would gladly work with Rénovatech again.
Robert Way
September 2025
We had a great experience with Renovatech. They redid our front steps and we are really happy with the work. Pascal was very patient in talking us through our options and helped us pick the right stone to match the house. It was a pleasure to work with them and we wouldn't hesitate to work with them again on another project in the future. Highly recommend!
Valerie Goodhue
March 2025
Excellent work! The team are super professional and their product is next to none. Pascal truly puts his heart into the work his team does! We absolutely recommend them! We love the beautiful deck they made us. The detailed work is incredible!
Jake G
April 2023
We couldn't be happier with Renovatech's work — Pascal and crew were professional and meticulous, starting with a critical repair to our foundation and a new patio in the backyard. We highly recommend this company and their quality workmanship. Hat's off to a job well done!
Charlene Campbell
March 2025
Pascal and his team are amazing. We needed a deck built around this cabin renovation project and they delivered!! Very precise, professional, and punctual — we would highly recommend their services!
Steve Bedard
April 2025
Reliable and hard working. They understand what quality work is all about.
Martin Pham Dinh
March 2026
An honest contractor who takes pride in his work — harder and harder to find these days. Pascal and his team are rare gems. They built the deck we had always dreamed of.
Nicolas Pham-Dinh
Mars 2026
Excellent service at Renovatech Gatineau! The team was courteous and professional. We really appreciated the suggestions and advice that helped us make the right choices for our project, especially for our hardwood floors. The staff is knowledgeable, attentive, and takes the time to explain the different options. Highly recommend!
Gabrielle Aubert
Mars 2026
I want to thank Pascal and his team at Renovatech. Last year for the construction of my patio and this year for the grading work. You did a remarkable job!! A professional and dedicated team that always gives their best. Very satisfied client. Highly recommend!!
Mathieu Rioux
Avril 2025
Pascal and his team always do exceptional work, they listen to their clients' needs and can solve any problem. Attention to detail is very important to Pascal and that is what makes his projects a success. It is a pleasure to work with them.
Gabrielle Aubert-Dubois
Mars 2025
Very positive experience with this company. A skilled, professional, and efficient team. The work is done with care and the quality is excellent. You can tell they know their trade perfectly and know exactly what to do to get an impeccable result. Highly recommend!
Stephany Labelle
Mars 2026
Great work from Pascal's team. He redid my driveway, my steps, and graded my yard. He was very helpful and reliable, and proposed good solutions to achieve the desired result.
Étienne Gosselin
Avril 2024
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Learn MoreWant a straight answer on your job?
Call us or send a quote request. We'll walk your property and tell you what we see.
819.213.0597