Ontario Winter Heating Bills 2026: What to Expect and How to Lower Yours Fast

Typical Dec/Jan/Feb bills for a 2,000 sq ft Ontario home, by heat source

A 2,000 sq ft two-storey home with average insulation, a thermostat held around 20 degrees Celsius, and two to four occupants is a fair benchmark for most Ontario suburbs. Your exact numbers will vary with insulation quality, air leakage, window area, and how cold your particular winter is, but these ranges are what a typical Ontario household actually pays across the three winter billing months at 2025-2026 regulated rates.[1][2]

Those gas numbers assume roughly 1,400 to 1,800 cubic metres for the winter quarter at the EGD all-in rate of about 33 cents per cubic metre, plus the $27.69 monthly customer charge.[2] Heat pump numbers assume 3,500 to 5,000 kWh for the quarter blended across ultra-low overnight (3.9 cents/kWh) and mid/on-peak hours, with most of the load shifted to overnight through scheduling.[1]Electric baseboard numbers assume 10,500 to 14,000 kWh for the quarter at the tiered winter rate (10.3 cents/kWh on the first 1,000 kWh per month, 12.5 cents/kWh above that). Oil assumes roughly 600 to 900 litres for the quarter at current wholesale plus delivery.

Two things will not show up in these numbers: the $27 to $29 monthly gas customer charge you pay even if you use zero gas, and the fixed electricity delivery charges (typically $30 to $55/month combined across your utility and regulatory charges) that apply to everyone on the grid regardless of usage. Those fixed costs are why a "cheap" electric baseboard summer bill can still run $60 to $90 before you turn anything on.

Why your bill spikes even with constant usage (HDD math)

Heating degree days (HDD) are the closest thing to an objective measure of how hard the weather worked your furnace. The calculation is simple: for any day, subtract the average outdoor temperature from 18 degrees Celsius. If the day averaged minus 10, that is 28 HDD. Sum a whole month and you get that month's heating load.[7]

The direct consequence: your January bill is typically 15 to 25 percent bigger than your December bill even if your thermostat setting is identical, no one in the house changed habits, and your rates did not move. That is the weather, not your furnace. If your January bill lands in that 15 to 25 percent range above December, the equipment is probably fine. If it is 40 percent or more over December, something else is going on (see the equipment troubleshooting section below).

The same math explains why a mild December (say, 450 HDD) followed by a brutal January (say, 850 HDD) can produce a January bill almost double the December bill without anything breaking. Bills follow degree days almost linearly in a well-insulated home, and super-linearly in a leaky one because heat pumps lose efficiency in deeper cold and gas furnaces run more continuously.[8]

Budget billing / equal billing: Enbridge and utility programs

Every major Ontario utility offers some form of equal payment plan. None of them reduce what you pay across the year, but all of them smooth the Dec-Jan-Feb cash-flow spike across 12 months so the worst month does not hit when holiday spending already has your card maxed out.

• Enbridge Equal Monthly Payment Plan. Enbridge averages your last 12 months of gas usage, divides by 12, and bills that fixed amount. Periodic reviews (usually twice a year) true up any shortfall or credit. No fee to enroll. Available to most residential customers in good standing.[6]
• Toronto Hydro Equal Billing. Same concept on the electricity side. Hydro One, Alectra, Elexicon, Ottawa Hydro, London Hydro, and most other Ontario distributors offer the same product under slightly different names.
• Oil and propane budget plans. Most oil and propane dealers offer pre-buy or monthly budget plans. Unlike Enbridge and the electricity utilities, oil and propane plans sometimes lock in a price per litre for the delivery season, which shifts commodity risk from you to the dealer.

Two things equal billing does NOT do. It does not reduce your total annual cost. And if your home is getting less efficient over time (insulation degrading, old windows, furnace running at 80% AFUE when it used to run at 85%), the plan's annual true-up will gradually lift your monthly amount. Equal billing is a cash-flow tool, not an efficiency tool.

Low-income heat help: LEAP and LIEP eligibility

Ontario runs two distinct low-income programs that people often confuse. They do different things, are administered by different organizations, and are stacked rather than alternatives. If you qualify for one, you likely qualify for the other, and you should apply to both.

LEAP (Low-Income Energy Assistance Program)

LEAP is an emergency, one-time grant for customers who are behind on their electricity or natural gas bill and at risk of disconnection. It is administered through social service agencies, typically the United Way in most regions at 1-855-487-5327. The grant goes directly to your utility to zero out or reduce a past-due balance.[3]

• Up to $650 toward an overdue electricity bill.
• Up to $780 toward an overdue electricity bill if your home is heated with electricity.
• Up to $650 toward an overdue natural gas bill.
• Household income thresholds scale by household size. A family of four with after-tax income up to $65,000 typically qualifies; higher thresholds apply for larger households.
• You can receive LEAP once per utility per year.

OESP (Ontario Electricity Support Program), sometimes called LIEP

OESP is the ongoing monthly credit on your electricity bill for lower-income households. Unlike LEAP, you do not need to be in arrears or facing shut-off. If you qualify, the credit simply appears on every electricity bill as long as eligibility continues. Apply through the Ontario Energy Board's intake process.[4]

• Credit amounts scale with household size and income. Smaller credits for larger incomes within the eligibility band, larger credits for smaller incomes.
• Households with electric heat or electric water heating qualify for enhanced credit tiers.
• Recipients of Ontario Works or ODSP automatically qualify and should contact their caseworker to enroll.
• Eligibility thresholds expanded in 2024, so households that did not qualify before may qualify now.

Free weatherization programs (Enbridge Home Winterproofing and IESO Energy Affordability Program)

Separate from bill credits, two Ontario programs deliver free home upgrades to income-eligible households: the Enbridge Home Winterproofing Program (insulation, draft-proofing, thermostat, water heater wrap for Enbridge Gas customers) and the IESO Energy Affordability Program (free replacement appliances, weather stripping, insulation, cold-climate heat pumps in some cases, for electricity customers). These are coordinated so you do not double-apply, and there is no cost to the homeowner.[9][10]

For a deeper walkthrough of all the low-income energy assistance options and how to apply, see our Ontario Low-Income Energy Help 2026 guide.

Cheapest winter savings (air sealing, setbacks, maintenance)

Not every efficiency upgrade pays back the same way. Here is the realistic ROI ranking for Ontario homes going into or out of winter, sorted by dollar saved per dollar spent.[8]

The biggest wins for the smallest spend

• Thermostat setback. Drop the thermostat 3 degrees Celsius for the 8 hours you are asleep and the 8 hours the house is empty. Typical savings of 5 to 10 percent on heating costs, roughly $35 to $75 on the winter quarter for a gas home, $60 to $130 for an electric baseboard home. Cost: zero if you program your existing thermostat manually, or $0 to $175 for a smart thermostat after the $75 to $100 Ontario HRS rebate.
• Furnace filter change. A clogged filter can cut furnace airflow by 15 to 30 percent, which forces the unit to run longer to deliver the same heat. Costs $15 to $30, saves 3 to 8 percent on heating costs. Change monthly during peak winter. For more on service costs and timing, see our HVAC maintenance cost guide.
• Attic hatch and rim joist air sealing. A $30 weather-stripping kit and $15 of canned foam sealant on the attic hatch and basement rim joists typically cuts heating costs 3 to 6 percent. The attic hatch alone can be the single biggest hole in many otherwise-insulated Ontario houses.
• Annual furnace tune-up. $150 to $300 in Ontario. Keeps AFUE efficiency from drifting down, catches problems before they become emergencies, and is usually required to keep manufacturer warranties valid. One missed tune-up can drop a furnace's real-world efficiency 2 to 5 percent, which more than wipes out the savings from skipping it.

Medium spend, medium payback

• Attic insulation top-up. Most Ontario homes built before 2000 have R-30 or less in the attic. Topping up to R-60 with blown-in cellulose or fibreglass costs $1,200 to $2,500 and typically cuts heating by 10 to 15 percent. The Ontario Home Renovation Savings Program pays up to $1,250 for standalone attic insulation with no energy audit required, which can cover most or all of the cost.[5]
• Basement insulation. Insulating the basement walls typically saves 5 to 15 percent on heating costs in older homes with uninsulated concrete foundations. HRS rebates up to $3,600 apply.
• Duct sealing. Leaky ducts in an unconditioned basement can lose 20 to 30 percent of the heat the furnace produces. Professional duct sealing runs $500 to $1,500 and typically pays back in 3 to 5 winters.

Big spend, long payback (consider only when replacing anyway)

• Window replacement. New ENERGY STAR windows typically save 5 to 10 percent on heating costs but cost $800 to $1,500 per window installed. Payback periods of 15 to 25 years are common. Do this for comfort and condensation control, not strictly for bill savings.
• Furnace upgrade. Replacing a 15-year-old mid-efficiency furnace (80% AFUE) with a 96% AFUE condensing furnace cuts gas usage by about 17 percent (12 percentage points of efficiency difference on the full load). That is real money over time, but only worth doing when the old unit is near end-of-life.
• Heat pump retrofit. Switching from oil, propane, or electric baseboard to a cold-climate air-source heat pump typically cuts winter heating costs by 40 to 60 percent. HRS rebates up to $7,500 for electrically heated homes, up to $2,000 for gas-heated homes.[5] Full analysis in our Ontario electricity rates guide (the electric-side math).

When a high bill means your equipment is broken

Cold weather explains a lot. Equipment failure explains the rest. Here is how to tell them apart before you call for service.

Signals that point to equipment, not weather

• Year-over-year bill jumped more than 40 percent in the same month at similar outdoor temperatures and unchanged rates. Enbridge bills show your prior-year usage for comparison on the same page as the current bill. If April 2026 use is 50 percent above April 2025 use and rates moved only a few percent, something changed in your house.
• Furnace runs continuously but rooms are still cold. Normal cycle is on for 8 to 15 minutes, off for 10 to 20 minutes. If the burner never cuts out, the unit cannot meet the load. Possible causes: undersized unit (unlikely if it was fine last winter), clogged filter, blocked vent, low refrigerant on a heat pump, failing ignitor or flame sensor on a furnace.
• Short cycling, the opposite problem. Unit turns on, runs 2 to 4 minutes, shuts off, repeats. Usually a dirty flame sensor, failing pressure switch, oversized system, or thermostat placement issue. Short cycling crushes efficiency because the startup phase is the least efficient part of each cycle.
• New noises. Banging on startup (dirty burners, delayed ignition), whistling (duct or filter airflow restriction), grinding (blower motor bearing), or a constant hum that was not there before all point to service.
• Ice on the outdoor heat pump unit. A light frost is normal and gets cleared by the defrost cycle. Thick ice that does not melt indicates a defrost cycle failure or low refrigerant charge. A heat pump that has lost 20 percent of its charge can still run, just badly, for weeks before anyone notices.
• Cold spots by exterior walls that were not there last winter. More often an insulation or air-sealing problem than a furnace problem, but worth an inspection.

What a tune-up actually finds and fixes

A $150 to $300 Ontario HVAC tune-up typically includes filter change, burner cleaning, flame sensor cleaning, blower motor inspection, gas pressure check, heat exchanger inspection for cracks, duct connection inspection, and thermostat calibration. On heat pumps, add refrigerant pressure check, coil cleaning, and defrost cycle verification. The cost of catching a cracked heat exchanger at tune-up (pennies to find) versus an emergency replacement in January ($4,000 to $8,000 furnace replacement at peak season) is the single best argument for booking the tune-up before peak cold rather than during it.

What to do if you can't pay this month's bill

Ontario utilities are regulated. They cannot disconnect service without going through specific steps first, and they cannot disconnect during declared extreme cold events. If you are looking at a bill you cannot pay, here is the order of operations.

1. Call the utility before the due date passes. Payment arrangements and extensions are much easier to get before you miss a payment than after. Ask about splitting the current bill into 2 or 3 monthly installments.
2. Apply for LEAP. United Way at 1-855-487-5327 in most of Ontario, or directly through your utility's website. Grants apply to past-due balances up to $650 ($780 for electrically heated homes), typically processed in 2 to 4 weeks.[3]
3. Enroll in OESP. This does not help the current overdue bill, but it reduces every future bill. Apply online through the OEB, provide household size and income, and the credit appears on your next billing cycle.[4]
4. Ask about Customer Service Deposit refunds. If you paid a deposit when you moved in and have been in good standing for 12 months, ask the utility to return it. This can produce a few hundred dollars of immediate relief.
5. Enroll in equal monthly billing. For next winter. Even if you cannot smooth this January's bill retroactively, starting a plan now means next January does not hit the same way.
6. Apply for free weatherization. The Enbridge Home Winterproofing Program and the IESO Energy Affordability Program both deliver zero-cost upgrades to income-eligible households, permanently reducing future bills.[9][10]

The worst thing you can do is ignore a past-due notice and wait. By the time a utility sends a disconnection notice, options shrink fast. Calling on day one of being behind is free. Being reconnected after disconnection costs $50 to $180 in fees on top of what you owe.

Related guides

Heating costs are one piece of the Ontario energy picture. These guides cover the pieces that connect.

• Ontario Electricity Rates 2026: TOU, Tiered, and ULO (the rate plan choice that matters most for heat pump and electric baseboard households)
• Enbridge Gas Rates Ontario 2026: Full Breakdown (line-by-line explanation of the April 2026 QRAM change on the gas side)
• Ontario Low-Income Energy Help 2026 (deeper dive into LEAP, OESP, and the free weatherization programs)
• HVAC Maintenance Cost Ontario (what a tune-up costs, what is included, and when to book it)

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