Average Gas Bill in Ontario: Monthly and Annual Costs for 2026

The average gas bill in Ontario for a detached home with gas heating and a gas water heater is roughly $95–$155 a month averaged over a year, or about $1,130–$1,880 annually including HST. A typical home using 2,300 m³ a year at about 45¢/m³ pays close to $1,540 a year, but monthly bills swing from around $50 in summer to $230 or more in January.

These are estimates for an Enbridge Gas residential customer. Your actual cost depends on your rate zone, the quarterly gas supply price, the size and age of your home, and how cold your part of Ontario is.

How much is the average gas bill in Ontario each month?

The table below spreads 2,300 m³ of annual use across the year in a typical pattern for a southern Ontario home. It uses an all-in variable cost of 45¢/m³ (covering gas supply, transportation and delivery) and a fixed monthly customer charge of about $27, an estimate within the usual range. HST of 13% is added.

Month	Use (m³)	Variable cost (× 45¢)	Fixed charge	Total with HST
January	400	$180.00	$27	$234
February	360	$162.00	$27	$214
March	290	$130.50	$27	$178
April	180	$81.00	$27	$122
May	90	$40.50	$27	$76
June	50	$22.50	$27	$56
July	40	$18.00	$27	$51
August	40	$18.00	$27	$51
September	60	$27.00	$27	$61
October	150	$67.50	$27	$107
November	260	$117.00	$27	$163
December	380	$171.00	$27	$224
Year	2,300	$1,035.00	$324	about $1,537

That works out to about $128 a month on average. Summer use is mostly water heating, plus any gas stove, dryer or barbecue line. Winter use is dominated by space heating.

Note: The fixed customer charge and the per-m³ rates are set through Enbridge's rate applications approved by the Ontario Energy Board and change during the year. Check the current figures on your bill and at enbridgegas.com (opens in a new tab).

What changes the bill: a range of homes

Scenario	Annual use (m³)	Rate (¢/m³)	Estimated annual bill with HST	Monthly average
Smaller or well-insulated home	2,000	35	about $1,130	about $94
Typical detached home	2,300	45	about $1,540	about $128
Larger or older, draftier home	2,600	50	about $1,880	about $156

Each row adds a fixed charge of $25–$30 a month (estimate) plus HST. Homes in Ottawa, Sudbury or Thunder Bay, with roughly 4,500 to 5,700 heating degree days compared with about 3,500 in Toronto, will often use more gas than these figures.

How much did the carbon charge removal save?

Before it was removed on 1 April 2025, the federal fuel charge on natural gas was 17.61¢/m³. For a home using 2,300 m³ a year, that was:

• 2,300 m³ × 17.61¢ = about $405 a year
• Plus 13% HST = about $458 a year

That saving is already reflected in current bills. It also narrowed the operating-cost gap between gas furnaces and heat pumps, which we cover in how the carbon charge removal changed heat pump economics.

Why is my gas bill higher than average?

• Weather. A cold January can push use well above a mild one, because heating demand tracks heating degree days.
• Thermostat settings. Keeping the house at 23 °C all day uses noticeably more than 20–21 °C with an overnight setback. See our post on the best thermostat temperature for winter.
• Air leaks and thin attic insulation. Many older Ontario homes have R-12 to R-20 in the attic, well below the R-50 to R-60 retrofit target.
• An older furnace. Mid-efficiency furnaces from the 1990s run around 80% AFUE or lower; new furnaces in Canada must be at least 95% AFUE.
• Gas appliances beyond the furnace. Pool heaters, fireplaces used as decor, and old water heaters add up.
• Estimated readings. If a bill says "estimated", the next actual reading may bring a catch-up charge.

Equal billing and how to read your bill

Enbridge offers an equal billing plan that spreads your estimated annual cost into equal monthly payments, then reconciles the difference. It helps with budgeting but does not lower the total. If your use changes, ask for the installment to be reviewed so you are not hit with a large year-end balance.

Your bill separates customer charge, delivery, transportation, gas supply and any adjustments. For a line-by-line explanation, see understanding your gas bill. To compare with the electricity side of the household budget, see our post on the average hydro bill in Ontario.

Ways to bring it down

1. Use a 2–3 °C setback overnight and when the home is empty; it typically saves roughly 5–10% on heating gas. On the typical home above, that is about $50–$100 a year.
2. Change the furnace filter every one to three months in heating season and book annual maintenance with a TSSA-registered contractor.
3. Air seal and top up attic insulation. The rim joist and attic hatch are common, cheap starting points. See our winter energy savings guide.
4. Lower the water heater setting to about 49–55 °C (120–130 °F).
5. Check program eligibility. Income-eligible Enbridge customers may qualify for free insulation and air sealing through the Home Winterproofing Program. Confirm details at enbridgegas.com.

All costs in this post are estimates for illustration and will vary by rate zone and quarter.