General contractors

The 10 Best General Contractors in Ottawa, ON

Updated 81 firms checked10 ranked

This list ranks 10 general contractors in Ottawa, ON. It starts from Google Maps searches for general contractors and related building work in Ottawa: 81 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 general contracting, 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

Select Urban General Contractors

Best overall

Ottawa general contractor renovating kitchens, bathrooms and basements, building home additions and taking on full-home and bungalow renovations.

Updated

Why it ranks here

  • Founded by Vasile Crecea, who started out in construction working alongside his father.
  • Portfolio includes full-home renovations such as the Milne home and a complete bungalow renovation in Pineglen.
  • Basement projects shown include one called Craighall and one in Stittsville, alongside bathroom work in Orleans.
  • Basement work covers in-law suites, home theatres, guest bedrooms and laundry areas.
  • Builds additions for rental space, new garages or a larger kitchen.
Basement renovations · Home additions · Full-home renovations · Kitchen renovations · Bathroom renovations Nepean
Visit website Call 613-581-3640
5.0 from 68 Google reviews

Edex Renovations

Best for full home renovations

Ottawa renovation and construction company doing full home and basement renovations, bathrooms, flooring, painting and plumbing for homes and businesses.

Updated

Why it ranks here

  • Works on both residential and commercial construction and renovation projects in Ottawa.
  • Basement renovations turn unused space into a suite, home office or entertainment room, with insulation and egress windows.
  • Projects shown include full renovations named Atlantis and Nepean and a bathroom remodel called Anderson.
  • Plumbing work covers leak repairs, pipe replacement, moved drains and water-saving fixtures in new kitchens and baths.
  • Painting jobs use low-VOC coatings, and flooring work covers hardwood, vinyl and tile.
Full home renovations · Basement renovations · Bathroom renovations · Flooring · Plumbing Ottawa
Visit website Call 613-791-1947
5.0 from 71 Google reviews

FJA Construction

Best for decks, fences and interlock

Ottawa renovation contractor for kitchens, bathrooms, basements and main floors, also building additions, decks, fences and interlock patios.

Updated

Why it ranks here

  • Besides interior renovations, offers exterior cladding, masonry, decks, fences and interlock patios.
Kitchen renovations · Basement renovations · Home additions · Decks and fences · Interlock patios Ottawa
Visit website Call 613-540-0499
5.0 from 60 Google reviews

Capital Homes

Best for heritage and estate homes

Ottawa design-build firm doing major renovations, additions and custom homes for owners up to about 30 minutes from downtown.

Updated

Why it ranks here

  • Founded by Conor Gibbons and in business since 2010.
  • Lists a track record of 500+ construction projects on its site.
  • Backs its work with a 2-year workmanship warranty.
  • Holds RenoMark verification and is a member of GOHBA.
  • Takes projects up to about 30 minutes from downtown Ottawa, from heritage streets to estate properties in the rural south.
  • Consultations begin virtually, move to an on-site assessment and end in a detailed proposal setting out scope and allowances.
Major renovations · Custom homes · Home additions · Design-build Ottawa
Visit website Call 613-867-9026
4.9 from 113 Google reviews

Ottawa Renovation Pro

Ottawa renovation contractor doing bathrooms, kitchens with IKEA cabinetry, semi-finished basements and interior and exterior house painting.

Updated
  • Designs custom IKEA kitchens and installs the IKEA cabinets itself.
  • Bathroom work covers design, plumbing, tiling, vanities, showers and tubs, plus waterproofing, insulation and heating.
  • Paints both interiors and exteriors and helps owners choose colours.
Home renovations · Bathroom renovations · IKEA kitchen installation · Basement renovations · House painting Ottawa
Visit website Call 613-413-1756
5.0 from 37 Google reviews

Remarkable Construction

Ottawa general contractor and finish carpentry firm taking on renovations, basements, additions, new builds and damage repairs, led by owner Mark Ostapyk.

Updated
  • Had two finalist projects at the 2021 Greater Ottawa Home Builders' Design Awards, both in the renovation category.
  • Those finalists were a clapboard house in Ottawa West and a red brick bungalow townhome beside the Kanata Golf and Country Club.
  • Has built several semi-detached homes in Westboro and renovated apartment buildings as well as kitchens, bathrooms and basements.
  • Owner Mark Ostapyk was born and raised in Ottawa, began a four-year carpentry apprenticeship after his degree and started his career in Vancouver.
  • Also repairs fire, water and natural disaster damage, and does interior and exterior painting and electrical work.
Basement renovations · General contracting · Fine carpentry · Home additions · Damage repairs Ottawa
Visit website Call 613-808-9138
5.0 from 35 Google reviews

Ranks 07 to 10

iBathrooms

Ottawa bathroom renovation contractor that works only on bathrooms, design included, and caps the number of jobs it takes each year.

4.9 613-725-7409CallWebsite

Kadri Construction

Ottawa general contractor doing basement, kitchen and bathroom renovations for homes, plus office, retail and restaurant fit-outs.

5.0 613-852-8070CallWebsite

IK Home Improvement

Ottawa general contractor handling major renovations, home additions, heritage renovations and new custom homes across the city and surrounding area.

5.0 613-519-0684CallWebsite

Modello Homes

Ottawa custom home builder that handles design, from first concept to architectural drawings, and then builds the house.

5.0 613-316-2103CallWebsite

Compare the firms

FirmBest forServicesGoogle ratingArea
01Select Urban General ContractorsBungalow and full-home renovations in OttawaBasement renovations · Home additions · Full-home renovations · Kitchen renovations · Bathroom renovations5.0Nepean
02Edex RenovationsFull home renovationsFull home renovations · Basement renovations · Bathroom renovations · Flooring · Plumbing5.0Ottawa
03FJA ConstructionDecks, fences and interlockKitchen renovations · Basement renovations · Home additions · Decks and fences · Interlock patios5.0Ottawa
04Capital HomesHeritage and estate homesMajor renovations · Custom homes · Home additions · Design-build4.9Ottawa
05Ottawa Renovation ProIKEA kitchen installs and bathroom remodelsHome renovations · Bathroom renovations · IKEA kitchen installation · Basement renovations · House painting5.0Ottawa
06Remarkable ConstructionRenovations that need fine carpentry and finishingBasement renovations · General contracting · Fine carpentry · Home additions · Damage repairs5.0Ottawa
07iBathroomsBathroom-only work with design includedBathroom renovations · Bathroom design · Shower renovations4.9Nepean
08Kadri ConstructionBasement and interior projects, residential or commercialBasement renovations · General contracting · Kitchen renovations · Epoxy flooring · Commercial fit-outs5.0Ottawa
09IK Home ImprovementOlder and heritage homes needing structural changesCustom homes · Major home renovations · Home additions · Heritage renovations · Project management5.0Ottawa
10Modello HomesCustom homes designed from first conceptCustom homes · Custom home design · Design-build5.0Ottawa

What to check before hiring a general contractor in Ottawa

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

  1. Registration with the WSIB

    Ask the firm for a clearance certificate from the WSIB, which confirms it is registered for workers' compensation and its account is in good standing. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.

  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 Ottawa

    Building permits for homes in Ottawa come from the City of Ottawa, and structural work, additions, new plumbing and electrical work and basement finishing usually need one. 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

    For a new house: a new house in Ontario must be built by a builder licensed by the Home Construction Regulatory Authority (HCRA) and comes with Tarion's warranty: one year on workmanship and materials, two years on items such as water penetration and the electrical, plumbing and heating systems, and seven years on major structural defects. For renovation work, get the firm's own workmanship warranty in writing.

Types of general contractor in Ottawa

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.

Renovation companies5

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

General contractors3

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

Design-build firms2

Design-build firms design the project and build it under one contract, so one firm answers for the drawings and the work.

General contractors in Ottawa: common questions

What does a general contractor do on a home project?

A general contractor runs the job from start to finish: pricing it, booking and supervising the trades, ordering materials, arranging inspections and keeping the schedule. You deal with one firm instead of hiring the framer, plumber, electrician and drywaller yourself.

Do I need a building permit for a renovation?

Usually, for anything structural, for new plumbing or electrical work, and for most basement finishing, additions and decks. Your municipality sets the rules and issues the permit. Many general contractors apply for it as part of the job, so agree who is responsible before you sign.

What should a renovation contract include?

A written scope of work, the price and how changes will be priced, a payment schedule tied to stages of the work, start and finish dates, who pulls the permits, and the warranty on workmanship. Pay as stages are completed rather than most of the price up front.

Should I hire a general contractor or manage the trades myself?

Managing the trades yourself means booking, ordering and supervising each one, arranging the inspections and absorbing the delay when one trade holds up the next. A general contractor does that work and answers for the result. Running it yourself suits small jobs that need one or two trades.

How do I check that a contractor in Ottawa is registered with WSIB?

Ask the firm for a clearance certificate from the WSIB. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.

Who issues building permits in Ottawa?

Building permits for homes in Ottawa come from the City of Ottawa. For general contracting, structural work, additions, new plumbing and electrical work and basement finishing usually need one. Many firms apply for the permit as part of the job, so agree who does it before you sign.

Before you get quotes

Corrections

Has something on this list changed?

Send the detail that is out of date, or the name and website of a firm that belongs here.

Request a correction Suggest a firm