Cohesion Contracting is a home renovation business in Ottawa, ON, Canada offering comprehensive renovation services, from design to completion.

We offer reliable advice and guidance throughout the entire renovation process. At completion, our goal is to provide a comfortable, efficient, quality built renovation that will last a lifetime. 

Rebuilding the Past

for Future Generations

In an ever‑changing energy landscape, we are focused on providing energy‑efficient, cost‑effective renovations. As Certified Passive House Tradespeople, we offer insight into building practices that save energy, improve mechanical system performance, and increase comfort and indoor air quality.

Our implemented building practices put energy usage front and centre. With energy loss being a key factor in a home’s longevity, our goal is to help maximize a home’s efficiency - built for comfort, efficiency, and a home that performs as good as it looks.

Renovate for the future.

WHAT WE BUILD

From first sketch to final walkthrough — one team accountable for the whole scope, not a rotating cast of subs.

01 Whole-Home Renovation

Full gut renovations that respect the bones of an existing house while rebuilding it for how you actually live.

02 Kitchens & Bathrooms

Custom cabinetry, layout redesign, and finish work built to last not just to photograph well.

03 Energy Retrofits

Building-envelope upgrades, insulation, air sealing, mechanical systems, that cut energy loss at the source.

04 Additions and Structural

Additions and structural work planned alongside the existing building, not bolted on as an afterthought.

05 Windows & Glazing

High-efficiency window units, properly sealed into the wall assembly, not just caulked and trimmed. Same standard whether it's a full renovation or a standalone window replacement.

06 Porches & Decks

Period-proper front porches built to match the house, not a generic add-on. Decks built for how you'll actually use the outdoor space, extending the livable footprint of the home.

Living room with two sofas, one beige and one yellow, a fireplace with a wooden mantel, a large mirror above it, and wall-mounted lights on a dark blue accent wall.