Home additions

The 10 Best Home Addition Contractors in Calgary, AB

Updated 98 firms checked10 ranked

This list ranks 10 home addition contractors in Calgary, AB. It starts from Google Maps searches for home additions and related building work in Calgary: 98 firms were checked, and building and renovation firms with their own website and an open Google listing went forward. Firms are weighed on their Google rating, the number of reviews behind it, how closely their services match home addition work, and their portfolio. The strongest firm overall sits at place 1, places 2 to 4 carry a badge for what each suits best, and places 5 to 10 run in order. Ratings and review counts are Google's, checked October 14, 2026. How we rank

Right Choice Construction

Best overall

Calgary renovation company centred on basement development, also doing kitchens, bathrooms, home and garage additions and exterior work.

Updated

Why it ranks here

  • Basement developments come with a 90-day written guarantee that the job finishes on time.
  • An in-house design team and its own custom cabinetry shop work with clients on layouts and finishes.
  • Basement clients get detailed architectural plans and functional layouts along with curated finish selections.
  • Beyond basements, the service list covers kitchens, bathroom remodels, home and garage additions, exterior renovations and house painting.
Basement developments · Home additions · Kitchen renovations · Bathroom remodels · Garage additions Calgary
Visit website Call 587-966-2383
5.0 from 130 Google reviews

Exit 13 Pro Renovations

Best for second-storey additions

Home renovation contractor working across Alberta and British Columbia, focused on second-storey additions and kitchen and bathroom remodels.

Updated

Why it ranks here

  • Reports over 7 years of experience as a home renovation company.
  • Names second-storey additions as a specialty alongside kitchen and bathroom remodels.
Second-storey additions · Kitchen remodels · Bathroom remodels · Home renovations Calgary
Visit website Call 778-700-4800
4.9 from 64 Google reviews

Brown Boys Building Developers

Best for garage suites

Calgary basement development company also building garage suites, custom homes and commercial plazas, with landscaping and exterior work.

Updated

Why it ranks here

  • The company gives 1999 as the year it was established.
  • Basement developments run from framing, insulation, electrical and plumbing through drywall, flooring and finishing.
  • Builds legal basement suites and secondary suites, and converts garages into garage suites.
  • Its service list also covers excavation and grading, fences and decks, and exterior siding, roofing and stucco.
  • Landscaping work covers patios, walkways, sod, retaining walls and planting for homes and businesses.
Basement development · Legal basement suites · Garage suites · Custom homes · Landscaping Calgary
Visit website Call 403-633-6307
4.8 from 85 Google reviews

Fine Line Homes

Best for additions run by the owner

Calgary custom home builder owned by Chris McLaren, doing new custom homes, additions and major renovations, including energy-efficient builds.

Updated

Why it ranks here

  • Owned and operated by Chris McLaren, and prospective clients are directed to call him directly.
  • Takes on home additions and major renovations as well as new custom homes.
  • Offers energy-efficient homes alongside its custom builds, with a stated aim of lowering a home's environmental impact.
Home additions · Custom homes · Major renovations · Energy-efficient homes Calgary
Visit website Call 403-991-3463
5.0 from 21 Google reviews

Ranks 07 to 10

Huber Homes

Custom home builder

5.0 403-371-3091CallWebsite

Trickle Creek Homes

Custom home builder

4.7 403-984-4400CallWebsite

Lighthouse Custom Homes

Custom home builder

4.7 403-971-5946CallWebsite

RareBuilt Homes

Home builder

4.7 403-269-2456CallWebsite

Compare the firms

FirmBest forServicesGoogle ratingArea
01Right Choice ConstructionBasement developments with in-house designBasement developments · Home additions · Kitchen renovations · Bathroom remodels · Garage additions5.0Calgary
02Exit 13 Pro RenovationsSecond-storey additionsSecond-storey additions · Kitchen remodels · Bathroom remodels · Home renovations4.9Calgary
03Brown Boys Building DevelopersGarage suitesBasement development · Legal basement suites · Garage suites · Custom homes · Landscaping4.8Calgary
04Fine Line HomesAdditions run by the ownerHome additions · Custom homes · Major renovations · Energy-efficient homes5.0Calgary

What to check before hiring a home addition contractor in Calgary

Five things to confirm with any firm, on this list or not, before you sign. The rules below are Alberta's and Calgary's.

  1. Registration with WCB-Alberta

    Ask the firm for a clearance letter from WCB-Alberta, which confirms it is registered for workers' compensation and its account is in good standing. WCB-Alberta advises getting one before the firm starts and again before the final payment, because the hiring party can end up owing premiums on an account that is not in good standing.

  2. Liability insurance

    Ask for a certificate of insurance that names the firm and shows commercial general liability coverage in force for the dates of your job, and check that the subcontractors it brings in are covered too.

  3. The building permit from Calgary

    Building permits for homes in Calgary come from the City of Calgary, and every addition needs one, and often a zoning review first. Agree in writing who applies for the permit and books the inspections.

  4. A written contract

    Get the scope of work, the payment schedule tied to stages of the work, start and finish dates, how changes are agreed and priced, and who handles permits and cleanup, all in one signed contract before any work starts.

  5. The warranty

    A renovation is not a new home, so the new home warranty rules usually do not apply: get the firm's own workmanship warranty in writing, with what it covers and for how long. Renovators in RenoMark, the Canadian Home Builders' Association program, offer a minimum two-year warranty on their work.

Types of home addition contractor in Calgary

The 10 firms on this list fall into 3 groups, read from what each firm's own site says it does and how it is listed on Google.

Home builders7

Home builders build new houses as their main work, and some take on additions and major renovations too.

General contractors2

General contractors run building projects of many kinds and bring in the trades each job needs.

Renovation companies1

Renovation companies renovate existing homes, one room at a time or all of it at once.

Home additions in Calgary: common questions

Do I need a permit for a home addition?

Yes. An addition changes the footprint or height of the house, so it needs a building permit and often a zoning review for setbacks and lot coverage. Plans are usually drawn by a designer or architect before the permit application goes in.

Can I add a second storey to my house?

Often, but the existing foundation and walls have to carry the new load. An engineer checks the structure before design starts, and the contractor builds to those drawings.

What happens before an addition is built?

A survey of the lot, a check of the zoning rules for setbacks, height and lot coverage, drawings by a designer or architect, an engineer's review where the structure is affected, and the building permit. Ask the firm which of these steps it handles and which it expects from your designer.

Can I live in my house while an addition is built?

Often. Most of the work happens outside the existing walls until the new space is joined to the house. Expect noise and dust, and a few days without power or water when the addition is tied in.

How do I check that a contractor in Calgary is registered with WCB-Alberta?

Ask the firm for a clearance letter from WCB-Alberta. WCB-Alberta advises getting one before the firm starts and again before the final payment, because the hiring party can end up owing premiums on an account that is not in good standing.

Who issues building permits in Calgary?

Building permits for homes in Calgary come from the City of Calgary. For home addition work, every addition needs one, and often a zoning review first. Many firms apply for the permit as part of the job, so agree who does it before you sign.

Before you get quotes

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