Custom Home Builders in Kingston, Quinte and Southeastern Ontario
Kingston, Belleville, Quinte West, Prince Edward County, Frontenac, Lennox and Addington, Hastings, and Leeds and Grenville.
Established builders who build complete custom homes on your land in Kingston, Quinte and Southeastern Ontario, listed against our published standard.
Builders in Kingston, Quinte and Southeastern Ontario
Every builder below showed dated public activity from November 2024 or later when we checked in November 2026. These are free listings compiled from public information. None of them has been vetted by BuildersOntario.com yet. Any builder can upgrade to a vetted listing: it confirms its HCRA licence and insurance to us, and we research it to make sure it fits.
Areas this region covers
- Kingston
- Frontenac County
- Lennox and Addington
- Hastings County
- Belleville
- Quinte West
- Prince Edward County
- Leeds and Grenville
Building a custom home in Kingston, Quinte and Southeastern Ontario: what is different here
Shallow bedrock
Limestone and granite sit close to the surface on many lots in this region. That can change foundation plans, basement depth and the type of septic system you need.
Septic systems in Ontario
Waterfront everywhere
Lake Ontario, the Bay of Quinte, the St. Lawrence, the Rideau and hundreds of inland lakes mean many custom builds are waterfront, with shoreline setbacks and conservation authority permits.
Buying a waterfront lot · Waterfront cottage build cost calculator
Before you hire any builder
- Look the builder up on the HCRA Ontario Builder Directory. Anyone who builds a new home for you in Ontario must hold an HCRA licence, and the directory shows their licence status and history.
- Ask for at least three recent completed homes you can drive past, and talk to those owners.
- Ask for proof of liability insurance and a WSIB clearance certificate.
- Get the scope, allowances, payment schedule and holdback in a written contract before any deposit.
- Know your all-in budget first. The custom home cost calculator gives you a starting number.
Tell us about your project
Where you want to build, whether you own the land, your budget and your timeline. We send it to up to three builders in Kingston, Quinte and Southeastern Ontario who fit.
About this directory
Who runs this directory: BuildersOntario.com is operated by ICFhome, a custom home builder in Simcoe County and South Georgian Bay. Builders are listed free when they meet our published standard. Payment never decides who is listed. Paid placements are always labelled. How we choose builders.

