Basement renovations

The best basement renovation companies in Canada, city by city

Updated 21 cities199 firms ranked

Firms that finish and renovate basements, from family rooms and home gyms to legal secondary suites. In Alberta the same work is called basement development. Each city has its own list of up to 10 basement renovation companies, weighed on Google rating, the number of reviews behind it, how closely each firm's services match basement renovation, and its portfolio.

Basement renovations by city

Each city's list, with the firm ranked first on it.

British Columbia

  • Basement renovations in Surrey Metro Vancouver, BC
    JC Custom Home ImprovementMetro Vancouver design-build general contractor renovating houses, condos and townhouses across Greater Vancouver and the Fraser Valley.
    5.0
  • Basement renovations in Richmond Metro Vancouver, BC
    Indoor Outdoor Guy RenovationsRichmond renovation firm covering kitchen remodelling, building design and landscape design, inside the home and out.
    4.9
  • Basement renovations in Langley Metro Vancouver, BC
    Dreamcast RenovatorsSurrey-based renovation company doing full-house, kitchen, bathroom and basement renovations across Surrey, Langley and neighbouring cities.
    4.9
  • Basement renovations in Kelowna Okanagan, BC
    Realty RenovationKelowna renovation contractor covering kitchens, bathrooms, basements and exteriors, plus additions, secondary suites and carriage houses across the Okanagan.
    5.0
  • Basement renovations in Victoria Vancouver Island, BC
    Michael Moser ContractingVictoria general contractor doing kitchen, bathroom and basement renovations plus cedar decks and fences, with its own crew across Greater Victoria.
    5.0

Prairies

  • Basement renovations in Calgary Calgary Region, AB
    SBS BasementCalgary basement development and renovation company working across the city and surrounding area, plus general home renovations.
    5.0
  • Basement renovations in Edmonton Edmonton Region, AB
    Edmonton Home ImprovementsEdmonton home improvement company covering exterior work such as roofing, siding, windows and doors, plus flooring, kitchens and basement suites.
    5.0
  • Basement renovations in Saskatoon Central Saskatchewan, SK
    Meraki Contracting & Spruce HomesSaskatoon renovation and home building company run by two brothers, taking on large renovations, basement developments and new builds.
    5.0
  • Basement renovations in Regina Southern Saskatchewan, SK
    First Call ConstructionGeneral contractor with teams in Regina, Saskatoon and Calgary doing basement developments, structural home additions, decks, garages and commercial projects.
    5.0
  • Basement renovations in Winnipeg Manitoba Capital Region, MB
    ProCoord Construction ServicesWinnipeg general contractor, established in 2024, doing basement developments, home renovations and commercial build-outs within 80 km of the city.
    5.0

Ontario

  • Basement renovations in Toronto Greater Toronto Area, ON
    The Foundation KingsToronto construction company taking on basement renovations and general contracting work.
    5.0
  • Basement renovations in Ottawa National Capital Region, ON
    Select Urban General ContractorsOttawa general contractor renovating kitchens, bathrooms and basements, building home additions and taking on full-home and bungalow renovations.
    5.0
  • Basement renovations in Brampton Peel Region, ON
    JS RenovationsBrampton renovation contractor building legal basement suites and remodelling kitchens, bathrooms, floors and open-concept living areas.
    5.0
  • Basement renovations in Hamilton Golden Horseshoe, ON
    Karar RenovationsHamilton and Niagara renovation contractor finishing basements and renovating kitchens and bathrooms, plus drywall, flooring and painting.
    5.0
  • Basement renovations in Markham York Region, ON
    A & J RenovationOwner-led Markham renovation contractor doing basement and bathroom renovations, with more than ten years in the trade.
    4.9
  • Basement renovations in Vaughan York Region, ON
    C&W General ContractingVaughan general contractor taking on basement renovations and general contracting work for homes around Vaughan.
    5.0
  • Basement renovations in Kitchener Waterloo Region, ON
    Kanada Home ImprovementKitchener home improvement contractor covering basement finishing, kitchens and bathrooms along with HVAC, plumbing, electrical, flooring and decks.
    5.0
  • Basement renovations in Burlington Halton Region, ON
    Nat's Reno’sGeneral contractor based in Burlington, taking on basement renovations and other home renovation projects in the area.
    5.0
  • Basement renovations in Oakville Halton Region, ON
    Mr. BasementBasement finishing company turning basements into second suites, walkouts, home theatres and gyms in Oakville, Mississauga, Burlington, Etobicoke and Milton.
    5.0

Atlantic Canada

Basement renovations: common questions

What is basement development?

It is the term Alberta builders and homeowners use for finishing an unfinished basement: framing, insulation, electrical, plumbing, drywall and flooring, often with a bedroom, bathroom or family room. Elsewhere it is usually called a basement renovation or basement finishing.

Can I add a legal suite in my basement?

In many Canadian cities, yes, but a legal secondary suite has to meet the building code and local zoning, including a separate entrance, ceiling heights, fire separation, smoke alarms and egress windows. It needs a permit and inspections, so ask the firm whether it has built legal suites in your city.

How do I keep a finished basement dry?

Deal with water before finishing: grading and downspouts that carry water away from the house, a working sump pump where the house has one, and repairs to foundation cracks. Then insulate and frame in a way that handles moisture. Ask the firm what it checks before it starts framing.

Can I add a bathroom in my basement?

Usually. A basement bathroom needs a drain connection, which can mean breaking the concrete floor to reach the main drain, or a pump system where the drain sits higher than the floor. The plumbing work needs a permit and inspection.

Before you get quotes

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