Ontario · 16 local services · checked September 28, 2026

Home energy audits and home testing in Hamilton

Hamilton gets about 3,449 heating degree-days a year, 34% of its houses were built before 1961, and 25 NRCan-licensed service organizations list its postal codes. Pick a service for the local details.

A Victorian red-brick semi-detached house with a front porch in autumn

How Hamilton is built

Hamilton's houses by when they were built Ten house shapes, one for each tenth of Hamilton's 167,240 houses. Before 1961: 34%, 1961–1990: 35%, 1991–2000: 10%, 2001 or later: 21%. Older houses glow hotter.
  • Before 1961 34%
  • 1961–1990 35%
  • 1991–2000 10%
  • 2001 or later 21%
Each house stands for one in ten of Hamilton's 167,240 houses (single-detached, semi-detached, row and duplex), drawn by when it was built. The glow shows the usual pattern: older houses tend to be leakier and less insulated. Snowfall scales with heating degree-days. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

Hamilton at a glance

Climate

Hamilton gets about 3,449 heating degree-days a year and has a winter design temperature of −15.6°C, according to NRCan's HOT2000 climate data for Burlington Piers.

Housing

Of Hamilton's 167,240 houses (single-detached, semi-detached, row houses and duplexes), 34% were built before 1961 and 69% before 1991, according to the 2021 Census. The typical house dates from 1971–1980.

Heating

In the Hamilton area, 75% of households heat mainly with a forced-air furnace; natural gas is the main heating energy for 65% of households and electricity for 20% (Statistics Canada, 2023).

Radon

Health Canada's 2012 survey found 5% of 100 homes tested in the City of Hamilton Health Unit health region above the guideline. The larger 2024 Cross-Canada survey reports 12.0% (1 in 8) of houses at or above the guideline for the Hamilton, ON (Hamilton CMA) metro area.

Communities around Hamilton

Hamilton's pages cover the whole City of Hamilton, including Alberton, Ancaster, Binbrook, Copetown, Dundas, Freelton, Hannon, Jerseyville, Lynden, Millgrove, Mount Hope, Rockton, Sheffield, Troy and Waterdown.

The organizations and professionals listed for Hamilton may or may not travel to every community, so ask when you call.

Area guides for the surrounding region, with every town and hamlet listed: Niagara Region area guide (Niagara Falls, Welland, Fort Erie, Grimsby and more); Haldimand County area guide (Caledonia, Dunnville, Hagersville and more).

Local service guides for Hamilton

Who does energy evaluations in Hamilton

25 NRCan-licensed service organizations list Hamilton postal codes. See the list with phone numbers and coverage →

Ontario directory: verified advisor profiles for Hamilton, with prices where published.

Rebates and financing for Hamilton homes

Cities near Hamilton

Planning upgrades in Hamilton?

Tell us where you are and what you’re planning. We’ll connect you with a registered service organization for your area — no spam, no shared lead lists.