General contractors

The 10 Best General Contractors in Kitchener, ON

Updated 121 firms checked10 ranked

This list ranks 10 general contractors in Kitchener, ON. It starts from Google Maps searches for general contractors and related building work in Kitchener: 121 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

Number 1: Top Level Construction

Best overall

Family-owned Kitchener-Waterloo design-build contractor handling kitchens, basements, secondary suites, additions and complete home renovations.

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Why it ranks here

  • Founded in 2013 by Josh, who remains its founder and strategic build partner.
  • Runs as a family-owned company with construction managers and estimators on staff alongside its trades.
  • Works as a full-service design-build company, from small bathrooms up to full-home renovations and additions.
  • Ends each build with a full walk-through and offers after-care on every job once work is complete.
  • Takes on secondary suites, stair work and concrete as well as kitchens, basements and bathrooms.

Number 2: Westmount Craftsmen

Best for kitchen and ensuite remodels

Family-owned Kitchener general contractor doing kitchen, bathroom, basement and full home renovations across Kitchener-Waterloo and nearby cities.

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Why it ranks here

  • Front-loads each project's design phase, spending substantial time with the homeowner early on.
  • Recent projects include an ensuite in St Jacobs, a kitchen in New Hamburg and a basement in Kitchener.
  • Also lists flooring renovation and window replacement among its services.

Number 3: All About Homes Renovations

Best for legal basement units

Kitchener renovation company doing legal basements, kitchens, bathrooms and complete home renovations across Kitchener, Waterloo and Cambridge.

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Why it ranks here

  • Counts over 30 years of combined experience across its team in home renovation work.
  • Has completed hundreds of renovations in Kitchener, Waterloo and Cambridge.
  • Builds legal basement units that add living space or rental income.
  • Covers electrical, plumbing, carpentry, flooring and finishing within its own full-service team.
  • Kitchen projects have included open-concept conversions made by removing walls, fitted with custom cabinetry.

Number 4: Kanada Home Improvement

Best for projects with HVAC and plumbing

Kitchener home improvement contractor covering basement finishing, kitchens and bathrooms along with HVAC, plumbing, electrical, flooring and decks.

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Why it ranks here

  • Brings in a master plumber to plan the plumbing on bathroom, kitchen and basement projects.
  • Handles flood damage restoration, removing water, drying out affected areas and repairing the damage.
  • Installs tile, hardwood, laminate and vinyl floors, along with interior doors, stairs and railings.
  • Designs and builds feature accent walls, which it names as one of its painting specialties.

Number 5: Triforce Construction

Kitchener-Waterloo design-build renovation company doing kitchens, bathrooms, basements and additions, with service areas reaching New Hamburg, Cambridge and Guelph.

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  • Its team brings over 20 years of experience to custom design-build renovations.
  • Bathroom work includes rainfall showers, soaking tubs, heated floors and custom vanities.
  • Additions it builds cover extra bedrooms and bathrooms, home offices, sunrooms and garages.
  • Past projects include a full home renovation, a basement duplex renovation and wine cellars.
  • The company's owners are Greg Curtis and Sean Bruder.

Number 6: Covach Bros

Kitchener-Waterloo custom renovation company doing home additions, basement finishing, kitchens, bathrooms and interior renovations, working by referral.

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  • Has worked for over 30 years on a referral-only basis.
  • Offers clients direct communication with the company's owner.
  • Serves Waterloo Region plus Guelph, Stratford, Woodstock, Brantford, Fergus and Milton.

Ranks 07 to 10

Number 7: Eagleview Construction

Number 8: King Street Construction

Number 9: SavannahRidge Construction

Number 10: GWC General Contractors

Rated 4.8 out of 5 from 104 Google reviews 437-366-1070CallWebsiteof GWC General Contractors (opens in a new tab)

Compare the firms

RankFirmBest forServicesGoogle ratingArea
01Top Level ConstructionSecondary suites and complete renovationsHome additions · Basement renovations · Secondary suites · Kitchen renovations · Complete home renovationsRated 5.0 out of 5 from 79 Google reviewsWaterloo, serves Kitchener
02Westmount CraftsmenKitchen and ensuite remodelsKitchen renovations · Bathroom renovations · Basement renovations · Full home renovations · Window replacementRated 4.9 out of 5 from 131 Google reviewsKitchener
03All About Homes RenovationsLegal basement unitsBathroom renovations · Legal basements · Kitchen renovations · Complete home renovationsRated 5.0 out of 5 from 44 Google reviewsKitchener
04Kanada Home ImprovementProjects with HVAC and plumbingBasement finishing · Kitchen renovations · Bathroom renovations · HVAC service · Flood damage restorationRated 5.0 out of 5 from 42 Google reviewsKitchener
05Triforce ConstructionDesign-build kitchen, bath and addition projectsKitchen renovations · Bathroom renovations · Basement renovations · Home additions · Design-buildRated 4.9 out of 5 from 58 Google reviewsKitchener
06Covach BrosAdditions and interior finishing in Waterloo RegionBathroom remodelling · Home additions · Basement finishing · Kitchen remodelling · Interior renovationsRated 4.9 out of 5 from 64 Google reviewsKitchener
07Eagleview ConstructionComplete home redesigns, including century-old housesDesign-build · Complete home renovations · Kitchen renovations · Home additions · Multi-unit constructionRated 4.9 out of 5 from 56 Google reviewsKitchener
08King Street ConstructionAdditional dwelling units in Waterloo RegionHome additions · Additional dwelling units · Major renovations · Multi-family construction · Commercial renovationsRated 5.0 out of 5 from 34 Google reviewsKitchener
09SavannahRidge ConstructionResidential and commercial interior workInterior renovations · Drywall and painting · Decks · Commercial construction · Project managementRated 5.0 out of 5 from 30 Google reviewsKitchener
10GWC General ContractorsLegal basement suites and investment projectsCustom homes · Legal basement suites · Home additions · Full home renovations · Commercial constructionRated 4.8 out of 5 from 104 Google reviewsKitchener

What to check before hiring a general contractor in Kitchener

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

    Building permits for homes in Kitchener come from the City of Kitchener, 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 Kitchener

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.

Design-build firms3

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

Renovation companies2

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

General contractors in Kitchener: 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 Kitchener 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 Kitchener?

Building permits for homes in Kitchener come from the City of Kitchener. 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.

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.