General contractors

The 10 Best General Contractors in Hamilton, ON

Updated 85 firms checked10 ranked

This list ranks 10 general contractors in Hamilton, ON. It starts from Google Maps searches for general contractors and related building work in Hamilton: 85 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

Zzone Homes

Best overall

Hamilton design-build renovation company doing kitchens, bathrooms, basements, full-home remodels and custom cabinetry in Hamilton and Burlington.

Updated

Why it ranks here

  • Has renovated Hamilton homes since 2005 and cites over 20 years of experience.
  • Is a member of the National Kitchen & Bath Association (NKBA).
  • Keeps design, custom cabinetry and construction under one roof.
  • Earned Best of Houzz recognition for service across 2018 to 2020.
  • Has held Baeumler Approved listed contractor status since 2019.
  • Portfolio work includes a complete home remodel in Ancaster, an ensuite bathroom renovation and basement finishing.
Bathroom renovations · Full home renovations · Kitchen renovations · Custom cabinetry · Home additions Stoney Creek
Visit website Call 905-906-9152
5.0 from 78 Google reviews

Redhill Design & Build

Best for design-build projects

Hamilton design-build contractor focused on commercial builds such as restaurants and retail stores, which also renovates kitchens, bathrooms and full homes.

Updated

Why it ranks here

  • Concentrates on commercial builds, with restaurants, franchises, retail stores and dental offices among its project types.
  • Projects in its portfolio include a gas station retail build in Milton and a franchise restaurant in Toronto.
  • Describes a track record in construction spanning over 20 years.
  • Works across Hamilton and the Greater Toronto Area, naming Toronto, Mississauga and Brampton among the places it serves.
Commercial construction · Design-build · Full home renovations · Kitchen renovations · Bathroom renovations Hamilton
Visit website Call 905-510-4989
5.0 from 65 Google reviews

Karar Renovations

Best for drywall, flooring and painting

Hamilton and Niagara renovation contractor finishing basements and renovating kitchens and bathrooms, plus drywall, flooring and painting.

Updated

Why it ranks here

  • The company owner is personally involved on every job site, including where subcontractors work.
  • Takes on full home renovations, basement finishing, bathroom remodels and kitchen upgrades.
  • Works across Niagara Falls, St Catharines, Welland and the communities in between.
Basement finishing · Kitchen renovations · Bathroom renovations · Drywall and plaster · Flooring and painting Hamilton
Visit website Call 289-887-9409
5.0 from 55 Google reviews

Chermark Renovations

Best for load-bearing wall removals

Hamilton renovation contractor handling additions, structural changes, kitchens, bathrooms and legal basement suites in Hamilton and nearby towns.

Updated

Why it ranks here

  • Founded in 2009, it cites over 15 years of renovation work in Hamilton.
  • Handles structural renovations, including load-bearing wall removal and framing.
  • Converts basements into legal basement apartments and secondary suites, taking care of design and construction.
  • Works in Hamilton, Binbrook, Stoney Creek, Ancaster and Caledonia, plus nearby communities.
  • Its portfolio covers additions, attics, covered porches and decks alongside kitchens, basements and baths.
Home additions · Structural renovations · Kitchen renovations · Basement suites · Bathroom renovations Hamilton
Visit website Call 289-880-9535
5.0 from 55 Google reviews

Building Dreams Contracting

Hamilton design-build firm doing custom homes, full-home renovations, additions, kitchens and custom cabinetry across Burlington, Oakville, Ancaster and Niagara.

Updated
  • Backs its work with a two-year written warranty that covers materials and labour.
  • Clients get daily progress updates through BuilderTrend while the build is under way.
  • Runs each job in five phases, with plans, 3D renderings and material selections settled before building starts.
  • Designs indoor and outdoor custom cabinetry as part of its design-build work.
  • Its portfolio includes a custom home in Ancaster, a condo renovation in Burlington and a full-home renovation in Oakville.
  • Serves Hamilton, Ancaster, Burlington, Oakville, Niagara and the GHA from 3 locations.
Custom homes · Full-home renovations · Home additions · Kitchens and bathrooms · Custom cabinetry Hamilton
Visit website Call 289-903-0213
5.0 from 52 Google reviews

Waffles Construction

Hamilton general contractor on James Street South doing kitchens, bathrooms, basements, additions, custom homes and commercial renovations.

Updated
  • Has more than a decade of residential and commercial construction work in the Hamilton area.
  • Manages each stage with its own team rather than passing jobs to a rotating set of subtrades.
  • A project manager coordinates the trades on each build, and every job closes with a walkthrough and a completed punch list.
  • Serves homeowners and businesses in Hamilton, Stoney Creek, Burlington, Ancaster and Dundas.
Kitchen renovations · Bathroom remodels · Basement finishing · Home additions · Commercial renovations Hamilton
Visit website Call 905-379-9233
4.9 from 117 Google reviews

Ranks 07 to 10

Newfore

Hamilton renovation company doing basements, kitchens, bathrooms, additions, garden suites and custom builds across the GTHA, from Toronto to St Catharines.

4.9 289-201-7888CallWebsite

TradeMaster Hamilton

Hamilton-Burlington general contractor doing kitchen, bathroom and basement renovations, plus structural work and smaller repairs such as drywall patching.

4.9 905-512-3599CallWebsite

Oakville Renovation

Greater Toronto Area general contractor doing kitchen and bathroom remodels, additions, new construction, outdoor carpentry and project management.

5.0 647-839-1378CallWebsite

North Ridge Renovations

Hamilton renovation contractor handling kitchens, bathrooms, basements, full-home projects and commercial interiors across the Greater Hamilton Area.

5.0 289-808-1396CallWebsite

Compare the firms

FirmBest forServicesGoogle ratingArea
01Zzone HomesRenovations with in-house design and cabinetryBathroom renovations · Full home renovations · Kitchen renovations · Custom cabinetry · Home additions5.0Stoney Creek
02Redhill Design & BuildDesign-build projectsCommercial construction · Design-build · Full home renovations · Kitchen renovations · Bathroom renovations5.0Hamilton
03Karar RenovationsDrywall, flooring and paintingBasement finishing · Kitchen renovations · Bathroom renovations · Drywall and plaster · Flooring and painting5.0Hamilton
04Chermark RenovationsLoad-bearing wall removalsHome additions · Structural renovations · Kitchen renovations · Basement suites · Bathroom renovations5.0Hamilton
05Building Dreams ContractingDesign-build custom homes and major renovationsCustom homes · Full-home renovations · Home additions · Kitchens and bathrooms · Custom cabinetry5.0Hamilton
06Waffles ConstructionRenovations run by an in-house teamKitchen renovations · Bathroom remodels · Basement finishing · Home additions · Commercial renovations4.9Hamilton
07NewforeComplex renovations and garden suitesCustom builds · Home renovations · Basement renovations · Kitchen renovations · Garden suites4.9Stoney Creek
08TradeMaster HamiltonKitchen and bath jobs led by the ownerKitchen renovations · Bathroom renovations · Basement renovations · Structural work4.9Hamilton
09Oakville RenovationRenovations needing a hired project managerKitchen remodelling · Bathroom remodelling · Home additions · Project management · Outdoor carpentry5.0Hamilton
10North Ridge RenovationsHomes and commercial interiorsKitchen renovations · Bathroom renovations · Basement renovations · Full-home renovations · Commercial interiors5.0Hamilton

What to check before hiring a general contractor in Hamilton

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

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

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 companies4

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

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.

General contractors3

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

General contractors in Hamilton: 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 Hamilton 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 Hamilton?

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

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