Basement Renovations & Suites in Coquitlam, BC

We finish Coquitlam basements into family rooms, gyms and offices, and build legal secondary suites for rental income. From Westwood Plateau walk-outs to Austin Heights character homes, we handle design, permits, moisture control and the full build under one team.

Coquitlam's hillside neighbourhoods give basements an edge. Homes on Burke Mountain and Westwood Plateau often have walk-out lower levels with grade-level entries and good natural light, which makes them natural candidates for a legal suite. Down in Maillardville and Austin Heights, older homes hide generous, under-used square footage. With SFU, SkyTrain and Lougheed nearby, rental demand is strong, so a finished basement here can mean real living space or a steady mortgage helper.

What we build in Coquitlam basements

• Finished living space: Family rooms, home gyms, theatres and offices with proper insulation, lighting and warm flooring underfoot.
• Legal secondary suites: Self-contained one and two-bedroom suites built to code, ideal for walk-out lots on Burke Mountain and the Plateau.
• Separate entrances: Grade-level or side-yard entries that give tenants privacy and keep your living space separate.
• Kitchens and bathrooms: Full suite kitchens, laundry and bathrooms with rough-ins planned around existing services.

What makes a basement suite legal

A legal suite is about safety and separation. It needs proper egress windows or doors so occupants can exit in an emergency, minimum ceiling height, fire separation between the suite and the main home, and a dedicated separate entrance. Smoke and CO alarms, interconnected, are part of the package. Requirements vary by lot and zoning, so your municipality confirms exactly what applies before we frame a single wall.

Coastal moisture control done right

Coquitlam's rainfall and hillside drainage mean moisture has to be managed, not ignored. Before finishing, we assess for water intrusion and address perimeter drainage, vapour barriers, and proper sealing at the slab and walls. We frame with the right materials and detail insulation so warm, dry air stays in and damp stays out. Done correctly, your finished basement stays comfortable and healthy year-round.

What drives your basement project investment

Every basement is different, so we give you an itemized estimate rather than a vague number. The main cost drivers are square footage, whether you are finishing living space or building a full suite with a second kitchen, the extent of plumbing and electrical work, egress window cutting into concrete, moisture remediation, and finish levels. Walk-out access can simplify a suite entrance, while older Maillardville homes may need service upgrades. We map it all out before you commit.

Why Coquitlam homeowners choose us

We are a BC Housing Licensed Residential Builder with more than 25 years of work across the Lower Mainland and a clean WorkSafeBC record. As members of CHBA and VRBA and former deficiency contractors for home-warranty providers, we know how a basement should be built to last. One team owns your schedule from permit to final walkthrough, so you always have a single point of contact.