Renovation contractors

The 10 Best Renovation Contractors in Kitchener, ON

Updated 121 firms checked10 ranked

This list ranks 10 renovation contractors in Kitchener, ON. It starts from Google Maps searches for renovation 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 home renovation, 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.

Updated

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: Total Homeworx

Best for smaller repairs and updates

Waterloo Region interior renovation contractor focused on kitchens, bathrooms and basements, and also taking smaller repair jobs.

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Why it ranks here

  • Has been renovating homes for residents of Waterloo Region since 2008.
  • Does most of its work in-house and brings in partner specialists for electrical and plumbing.
  • Also takes on smaller jobs, including drywall, trim, tile and door repairs.
  • Serves Kitchener, Waterloo, Cambridge and Guelph, along with Elmira, St Jacobs, Wellesley and St Clements.

Number 3: 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 4: BathWorX

Best for tub-to-shower conversions

Cambridge bathroom renovation company with a showroom off the 401, doing tub-to-shower conversions, bathtub and shower remodels and full bathroom renovations.

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Why it ranks here

  • Owned by Jake and Brent H., the company has 25+ years of experience.
  • Supplies and installs bathroom products, with a showroom just off the 401 in Cambridge.
  • Offers mobility and accessibility bathroom work alongside its remodels.

Number 5: Superior Finish Contracting

Kitchener renovation contractor focused on basement finishing and kitchen remodels, also doing bathrooms and laundry rooms across Kitchener, Waterloo and Cambridge.

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  • Its own tally lists 255 completed basements, 294 completed kitchens and 896 satisfied customers.
  • Handles full and partial basement renovations, from framing and drywall through flooring, lighting and final finishes.
  • Will work from drawings prepared by a client's own designer or draftsman.
  • Also does laundry room renovations and custom carpentry alongside kitchens, basements and bathrooms.
  • Featured work includes a basement in Waterloo and a kitchen in Ayr.

Number 6: Bathroom Doctor

Kitchener-Waterloo bathroom renovation company that works only on bathrooms, from powder room updates to full ensuite remodels and stand-up showers.

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  • Renovates bathrooms only and has been in business for over 15 years.
  • A typical bathroom project is finished in 15 working days, with a guaranteed start date.
  • Does all work with its own on-site team rather than outsourcing to subcontractors.
  • Owner and president Kal Zeitoun brings over 20 years of experience.

Ranks 07 to 10

Number 7: Ion Contracting

Rated 5.0 out of 5 from 25 Google reviews 226-750-0753CallWebsiteof Ion Contracting (opens in a new tab)

Number 8: ArcoNest Renovations

Rated 5.0 out of 5 from 19 Google reviews 416-887-7655CallWebsiteof ArcoNest Renovations (opens in a new tab)

Number 9: Pioneer Craftsmen

Rated 4.8 out of 5 from 33 Google reviews 519-743-4461CallWebsiteof Pioneer Craftsmen (opens in a new tab)

Number 10: York Custom Renovators

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
02Total HomeworxSmaller repairs and updatesKitchen renovations · Bathroom renovations · Basement renovations · Drywall and trim repairsRated 5.0 out of 5 from 46 Google reviewsKitchener
03Westmount CraftsmenKitchen and ensuite remodelsKitchen renovations · Bathroom renovations · Basement renovations · Full home renovations · Window replacementRated 4.9 out of 5 from 131 Google reviewsKitchener
04BathWorXTub-to-shower conversionsTub-to-shower conversions · Bathtub remodels · Full bathroom renovations · Accessible bathrooms · Shower doorsRated 4.9 out of 5 from 131 Google reviewsBased in Cambridge
05Superior Finish ContractingBasement finishing and kitchen remodelsBasement finishing · Kitchen renovations · Bathroom renovations · Laundry room renovations · Custom carpentryRated 5.0 out of 5 from 25 Google reviewsKitchener
06Bathroom DoctorBathroom and ensuite remodels in Kitchener-WaterlooFull bathroom renovations · Ensuite renovations · Stand-up showers · Powder roomsRated 4.9 out of 5 from 40 Google reviewsKitchener
07Ion ContractingTile-heavy bathroom and backsplash projectsBathroom remodels · Tile installation · Kitchen backsplashesRated 5.0 out of 5 from 25 Google reviewsKitchener
09Pioneer CraftsmenDesign-led kitchen, bath and accessibility renovationsDesign-build · Kitchen renovations · Bathroom renovations · Home additions · Accessible renovationsRated 4.8 out of 5 from 33 Google reviewsKitchener
10York Custom RenovatorsKitchen, bath and open-concept remodelsKitchen and bathroom renovations · Home additions · Basement renovations · Open-concept conversions · Decks and fencesRated 5.0 out of 5 from 19 Google reviewsKitchener

What to check before hiring a renovation 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 removing walls, moving plumbing and adding circuits 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

    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 renovation contractor in Kitchener

The 10 firms on this list fall into 4 groups, read from what each firm's own site says it does and how it is listed on Google.

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 contractors1

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

Home builders1

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

Renovation contractors in Kitchener: common questions

What is the difference between a renovation contractor and a general contractor?

The two overlap. A renovation contractor works on existing homes, while a general contractor may also take on new builds and additions. Many firms do both, so judge them on the projects they show rather than the label.

What is RenoMark?

RenoMark is the renovator program of the Canadian Home Builders' Association. Members agree to a code of conduct that covers written contracts, a warranty on their work and liability insurance.

How do I compare renovation quotes?

Ask each firm to price the same written scope, split into labour, materials and allowances for items you have not chosen yet. A low quote often has small allowances that grow once the work starts.

Can I stay in my home during a renovation?

Often, when the work covers one or two rooms. Full-home renovations, work that shuts off water or power for days, and jobs that disturb older materials such as asbestos in plaster or flooring can make it hard to stay. Ask the firm how it will stage the work and keep a kitchen or bathroom usable.

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 home renovation, removing walls, moving plumbing and adding circuits 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.