Custom Home Builders in Ontario

Ratings, services and a phone number for every custom home builder in Ontario.

  • Builders sorted city by city
  • Each builder's own website read for the work it does
  • Free to search, free to be listed
1,765
custom home builders
126
cities
1,323
confirmed custom builders
24,728
Google reviews

Find custom home builders in your city

Highest-rated custom home builders in Ontario

Ranked by Google rating weighted by review count, among builders their own website confirms.

Oakville 5.0 (185)

Oakville Home Renovation Contractors by Gracia Makeovers

Gracia Makeovers has been a family owned renovation company in Oakville since 2003, serving Halton, Peel, York, Hamilton and the wider GTA. Kitchens, bathrooms, basements and home additions…

  • Builds custom homes
  • Design and build under one roof
  • Also renovates and builds additions
View listing
Toronto 4.9 (148)

JP Lucky Construction And Roofing

JP Lucky Construction And Roofing is a family-owned Toronto company serving the GTA and nearby cities, with its expertise foremost in framing and custom house carpentry. It offers…

  • Builds custom homes
  • Also renovates and builds additions
  • Handles permits and approvals
View listing
Mississauga 4.9 (147)

Ace Build Contracting

Ace Build Contracting is a Mississauga general contractor that does major renovations, home additions and custom home builds across the GTA, established in 2018. It runs as a…

  • Builds custom homes
  • Design and build under one roof
  • Also renovates and builds additions
View listing
Ajax 4.9 (134)

HH renovation & general contracting Inc.

Custom homes and remodeling go together at HH Renovation and General Contracting, an Ajax contractor serving residential and commercial clients. Home additions, kitchen and bathroom renovations, bedrooms, flooring,…

  • Builds custom homes
  • Design and build under one roof
  • Also renovates and builds additions
View listing
Toronto 5.0 (119)

Astaneh Construction

Astaneh Construction plans and delivers custom homes, full home renovations and major additions across Toronto and the GTA, and has operated since 2013. It is a licensed and…

  • Builds custom homes
  • Design and build under one roof
  • Builds on your lot
View listing

Find custom home builders by city

Towns with fewer than 3 listed custom home builders sit on the nearest city's page.

How listings are vetted

  1. 1

    Start from the record

    Every listing begins as a public Google business record filed as a home builder, contractor or construction company.

  2. 2

    Keep the real ones

    Open businesses with at least one review and a record updated in the past year stay. Duplicates are merged.

  3. 3

    Read the website

    Each builder's own site is read for custom homes, design, lots, teardowns, cottages and permits. The work it names is marked.

  4. 4

    Say when we do not know

    If the site says nothing about a service, the listing shows "not enough info", never a guess.

Google files renovators, framers, realtors and condo sales offices under home builder categories too. We read every business's own website and kept the ones that describe building custom homes, plus the businesses Google files as custom or home builders whose sites say too little to tell. Subdivision sales offices that sell only fixed models are left out.

Tarion registration, HCRA licences and association memberships are shown as each builder states them on its own site. We do not verify them, so check the builder in the HCRA's Ontario Builder Directory before you sign.

Owners can claim a listing to correct details or add photos. A person checks every claim. Published by Trevor Tynes.

How to choose a custom home builder in Ontario

Choosing a custom home builder in Ontario comes down to five checks: the licence, how the warranty covers a home built on your own land, the homes the builder has finished, how they fit your lot and plans, and a contract you understand line by line. The first two take an evening online. The last three take a few weeks of meetings.

Check the licence first

Every builder of new homes in Ontario must be licensed by law, and a builder who builds on land you already own needs both a vendor and a builder licence from the Home Construction Regulatory Authority. Look each name up in the HCRA's Ontario Builder Directory. It shows years active, homes built, any orders, charges or licence conditions, and warranty claim information from Tarion. A builder without a licence shows a warning.

Know how the warranty works on a contract home

Tarion calls a home built on your land under a construction contract a contract home, and advises registering the contract when you sign it. After possession, coverage runs for one year on workmanship and materials, two years on water penetration and the electrical, plumbing and heating systems, and seven years on major structural defects. An owner-built home is not covered, and taking significant control of the build can put coverage at risk.

See the work, then match it to your lot

Ask for homes like yours and walk through one finished house and one job site. Call two or three recent clients and ask what went wrong and how it was handled. Then pick a builder whose usual work fits your project: some design in-house, some build from an architect's plans, some focus on teardowns and infill, others on cottages and waterfront lots. A building permit comes from your municipal building department, and it waits on any zoning change, minor variance or conservation authority approval your lot needs, so ask who handles them.

Reading a listing here

The tiles on each listing show what a builder says on its own website: custom homes, in-house design, building on your lot, teardowns and infill, cottages and waterfront, energy-efficient builds, permits, and more. "Not enough info" means the site didn't say, not that the answer is no. The Tarion and HCRA tile is the builder's own claim, so confirm it in the Ontario Builder Directory. Ratings come from Google, and a 4.8 from 90 reviews tells you more than a 5.0 from three.

Compare quotes on the same plans

Give two or three builders the same plans or written brief and compare itemized quotes line by line. The contract should spell out the cost and the payment schedule, and how changes are priced. The full guide to choosing a custom home builder in Ontario has the questions to ask before you sign, or you can describe your project once and we'll pass it to builders who work your area.

Frequently asked questions

Does a custom home builder in Ontario need a licence?

Yes. Everyone who builds or sells new homes in Ontario must be licensed by law, and a builder who builds a custom home on land the owner already holds must be licensed as both a vendor and a builder by the Home Construction Regulatory Authority. You can check any builder in the HCRA's Ontario Builder Directory.

Is a custom home covered by the Tarion warranty?

A custom home built by a licensed builder under a construction contract is a contract home, and Tarion advises registering the contract when you sign it. After possession the warranty runs one, two and seven years. An owner-built home is not eligible, and an owner who takes significant control of the build can put coverage at risk.

Do I need a building permit to build a custom home?

Yes. A building permit is needed to build a house, and it comes from the body that enforces the Building Code in your area, usually the municipal building department. It is not issued until any zoning change, minor variance or other required approval, such as a conservation authority permit, is in place.

How are builders chosen for this directory?

Every listing starts as a public Google business record. We kept open businesses with reviews and read each one's own website. A builder stays when its website describes building custom homes, or when Google files it as a custom home or home builder and its site says too little to tell.

What does "not enough info" mean on a listing?

It means the builder's website did not say either way, often because there is no website to read. It is not a no. Ask the builder about it on the first call.

Do builders pay to be listed?

No. Every listing is free. Builders can pay for a featured position at the top of a city page, and those positions are marked as featured.

How do I correct or claim a listing?

Use the claim form. A person checks every claim before anything on the listing changes, and an owner can add photos and correct details once the claim is confirmed.