Alberta · 16 local services · checked September 28, 2026

Home energy audits and home testing in Lethbridge

Lethbridge gets about 4,274 heating degree-days a year, 19% of its houses were built before 1961, and 21 NRCan-licensed service organizations list its postal codes. Pick a service for the local details.

Energy audits in Lethbridge → All 16 services
A two-storey Calgary house with a double garage under a chinook sky, mountains on the horizon

How Lethbridge is built

Lethbridge's houses by when they were built Ten house shapes, one for each tenth of Lethbridge's 33,945 houses. Before 1961: 19%, 1961–1990: 35%, 1991–2000: 11%, 2001 or later: 35%. Older houses glow hotter.
  • Before 1961 19%
  • 1961–1990 35%
  • 1991–2000 11%
  • 2001 or later 35%
Each house stands for one in ten of Lethbridge's 33,945 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.

Lethbridge at a glance

Climate

Lethbridge gets about 4,274 heating degree-days a year and has a winter design temperature of −26.1°C, according to NRCan's HOT2000 climate data for Lethbridge.

Housing

Of Lethbridge's 33,945 houses (single-detached, semi-detached, row houses and duplexes), 19% were built before 1961 and 54% before 1991, according to the 2021 Census. The typical house dates from 1981–1990.

Heating

In the Lethbridge area, 91% of households heat mainly with a forced-air furnace; natural gas is the main heating energy for 81% of households (Statistics Canada, 2023).

Radon

Health Canada's 2012 survey found 9% of 111 homes tested in the Chinook Regional Health Authority health region above the guideline. The larger 2024 Cross-Canada survey reports 16.8% (1 in 6) of houses at or above the guideline for the Lethbridge, AB (Lethbridge CMA) metro area.

Local service guides for Lethbridge

Energy audits and tests

An energy advisor’s kit on a front-hall bench: infrared camera, pressure gauge with tubing, tape measure, headlamp and a floor sketch

Home energy audit

21 licensed organizations
A red blower-door panel with a large fan fitted into the front doorway of a brick bungalow, a pressure gauge on a stool inside

Blower door test

4,274 degree-days
Hands holding an infrared camera aimed at a ceiling corner beside a frosty window; the screen shows a cold streak

Thermal imaging inspection

4,274 degree-days
A kitchen table with a house floor plan, a laser measure, a tape measure and a laptop showing the plan

Heat loss calculation

Design temp −26.1°C
A duct-testing fan on a basement floor connected by flexible duct to a furnace, a pressure gauge hanging from a joist

Duct leakage testing

91% forced-air
A gloved hand inserting a combustion analyzer probe into a furnace flue pipe in a basement

Combustion safety test

81% heat with gas
A heat recovery ventilator on a basement wall with four insulated ducts running up between the joists

Ventilation and humidity assessment

35% built since 2001
Loose-fill insulation between attic joists, a yellow ruler showing its depth and frost on the roofing nails above

Attic insulation inspection

54% built before 1991
Utility bills and a phone showing a monthly energy-use chart on a kitchen table

Energy bill analysis

City of Lethbridge Electric Utility

Home health tests

A small digital radon monitor on a bookshelf in a finished basement family room

Radon testing

16.8% at or above guideline (2024)
A carbon monoxide alarm on an upstairs hallway wall outside the bedrooms at night

Carbon monoxide testing

Not required (recommended)
A moisture meter pressed into water-stained basement drywall, an air-sampling pump on a tripod nearby

Mold and air quality testing

54% built before 1991
A gloved hand holding a sealed sample bag above vermiculite insulation between attic joists

Asbestos and vermiculite testing

54% built before 1991
A gloved hand swabbing layers of cracked old paint on a wooden window sill

Lead paint testing

19% built before 1961
Filling a water-sample bottle at a farmhouse kitchen tap with the aerator removed, snowy fields and a barn outside

Well water testing

Wells rare

For businesses and buildings

An auditor walking between rooftop heating and cooling units on a snowy commercial roof

Commercial energy audit

0 incentive programs

Who does energy evaluations in Lethbridge

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

Rebates and financing for Lethbridge homes

Provincial Clean Energy Improvement Program (Alberta) Property-tax financing for efficiency and renewable upgrades in participating Alberta municipalities — check your municipality's current intake Open · deadline Federal CMHC Eco Improvement premium refund 25% back on your CMHC mortgage insurance premium after $20,000 of energy renovations Open

Cities near Lethbridge

Calgary177 kmRed Deer296 kmSherwood Park427 kmEdmonton433 kmKelowna475 kmSaskatoon511 km All 70 cities →

Sources

Checked September 28, 2026.

Planning upgrades in Lethbridge?

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