How Saint John is built
- Before 1961 34%
- 1961–1990 44%
- 1991–2000 9%
- 2001 or later 13%
Getting your usage history in Saint John
Most of Saint John is served by Saint John Energy for electricity and Liberty Utilities (Gas New Brunswick) for natural gas.
- Saint John Energy: Not verified: the sjenergy.ca site failed TLS verification from our fetcher. Ask the utility about an online account or 12-month history. Link
What the analysis shows
Saint John gets about 4,580 heating degree-days a year, a measure of how much heating its climate needs, and its winter design temperature, the cold day heating systems are sized for, is −22.5°C. Those figures come from the climate data for Saint John in HOT2000, the home-energy software Natural Resources Canada (NRCan) gives energy advisors. Weather-normalizing your bills against those degree-days separates heating from baseload (lights, appliances, hot water), so you can see how much of the bill a heating upgrade can actually touch, and compare a mild year with a harsh one fairly.
Atlantic Canada Maritimes and Newfoundland
What this means in Saint John’s climate
Damp, windy, icy winters and costly oil: switch to heat pumps, seal, test for radon.
Atlantic winters are wet, windy and icy rather than extremely cold, and summers are mild. Heating oil is still common and its price rose sharply in 2026, while heat pumps already heat many homes. An EnerGuide evaluation here should plan the move off oil, seal wind-driven leaks, fix moisture before insulating, and include a radon test.
- Plan your move off oil. Oil prices rose 65% to 81% in a year, and corrosion is a leading cause of oil tank leaks. Cold-climate heat pumps can be up to three times as efficient as oil heating. Ask: Ask the advisor to note your oil tank's age and condition, and to size a cold-climate heat pump with a backup plan.
What else homes in Saint John need →
Sources for this climate guide · checked October 26, 2026
- National Building Code of Canada 2020, climate data (NRC)
- Canadian Climate Normals 1991–2020 (ECCC)
- Keeping the Heat In (NRCan)
- Heat pumps, Canada Greener Homes (NRCan)
- Heat pump basics (NRCan)
- Heating and Cooling With a Heat Pump (NRCan)
- Primary heating systems by household, Table 38-10-0286-01 (Statistics Canada)
- Household heating oil prices, Table 18-10-0001-01 (Statistics Canada)
- Electricity price comparison, April 2025 (Hydro-Québec)
- Prevent oil tank spills (Government of Nova Scotia)
- Canada's top weather stories of 2019 (ECCC)
- Canada's top weather stories of 2022 (ECCC)
- Canada's top weather stories of 2023 (ECCC)
- 2024 Cross-Canada Survey of Radon Exposure
- Guide for Radon Measurements in Homes (Health Canada)
- Conditions for thermal scans, ASTM C1060 summary (Cx Associates)
- Canada's top weather stories of 2018 (ECCC)
- Canada's most impactful weather stories of 2024 (ECCC)
NRCan-licensed service organizations serving Saint John
A service organization is a company that Natural Resources Canada (NRCan) licenses to deliver EnerGuide evaluations; its registered energy advisors do the home visit. Bring 12 months of bills to any of these organizations' evaluations; the advisor's model uses them as the baseline for projected savings.
- Enercheck Solutions
- Homesol Building Solutions
- RU-Green Energy Solutions
- ThermalWise Green Building Cooperative
Programs in Saint John
Energy bill analysis in Saint John: common questions
How do I download my energy usage in Saint John?
Saint John Energy: Not verified: the sjenergy.ca site failed TLS verification from our fetcher. Ask the utility about an online account or 12-month history. Link
What is Green Button?
A standard format for downloading your own energy data. Ontario electricity utilities have been required to offer Green Button Download My Data since November 1, 2023.
Why weather-normalize bills?
A cold winter raises heating bills even if nothing about the house changed. Normalizing to degree-days lets you compare years fairly and measure real savings.