A Toronto apartment may seem affordable during a viewing but become considerably more expensive once winter arrives. If the tenant pays for heat or electricity, inefficient heating equipment, drafty windows and poor insulation can add an unpredictable amount to the monthly budget.
You cannot calculate future Toronto apartment heating costs simply by looking at the monthly rent. You need to know what type of heating the unit uses, which utilities are included and how effectively the apartment retains warmth.
Before signing a lease, examine the heating system, request previous utility information and look for signs that the apartment may lose heat quickly.
Find Out Who Pays for Heat
Start by asking which utilities are included in the advertised rent. Do not assume that “utilities included” covers heat, electricity and water.
The Ontario standard lease includes a section identifying whether the landlord or tenant is responsible for each utility. Review this section carefully before signing.
A rental listing may describe heat as included while requiring the tenant to pay for electricity. That distinction matters if the apartment uses electric baseboard heaters or another system connected to the tenant’s electricity meter.
Ask the landlord:
- Is heat included in the rent?
- What energy source heats the apartment?
- Does the tenant pay electricity or natural gas directly?
- Is the unit separately metered?
- Are any utility costs divided among several apartments?
- Does the monthly charge change according to consumption?
- Is hot water included?
- Are there equipment rental charges?
Get the answers in writing. Verbal statements made during a viewing may be difficult to verify later if the lease says something different.
Identify the Heating System
The type of heating system can affect both comfort and cost. Common systems in Toronto rentals include:
- Electric baseboard heaters
- Radiators connected to a central boiler
- Forced-air furnaces
- Heat pumps
- Fan-coil units in condominiums
- In-floor heating
Look for long individual heaters installed near the baseboards. These may indicate electric resistance heating, although you should still ask how the system is powered and billed.
Radiators are commonly connected to a building-wide boiler, with the heating cost often incorporated into the rent or building expenses. However, rental arrangements vary, so confirm rather than assuming.
Heat pumps can provide efficient heating and cooling, but their performance and operating cost depend on the equipment, installation, building and weather. Ask whether another heating source is used during especially cold periods.
A fan-coil unit may use centrally supplied hot or cold water while consuming electricity to operate its fan. Find out which portion, if any, appears on the tenant’s utility bill.
Request Previous Utility Bills
One of the most useful questions is whether the landlord or current tenant can provide past utility bills for the apartment.
Request bills covering an entire year if possible, with particular attention to December through March. A summer electricity bill will not reveal the cost of electric winter heating.
When reviewing a bill, check:
- The billing period
- Actual energy consumption
- Whether the reading was actual or estimated
- The total amount after fees and taxes
- Whether the unit was occupied throughout the period
- The electricity pricing plan
- Whether unpaid balances or adjustments are included
A previous bill is not a guarantee of what you will pay. Consumption depends on the number of occupants, preferred temperature, time spent at home and use of appliances. However, it provides more evidence than a general statement that utilities are “not too expensive.”
If no bills are available, treat any cost estimate cautiously.
Look Closely at the Windows
Windows are one of the easiest areas to inspect during a viewing. Older, poorly sealed windows can allow cold air to enter and heated air to escape.
Look for:
- Condensation between panes
- Gaps around frames
- Peeling or damaged seals
- Cracked glass
- Frames that appear warped
- Temporary plastic covering
- Water stains around the window
- Curtains moving when the window is closed
- Significant temperature differences near the frame
Ask whether the windows are single-, double- or triple-pane and when they were installed. Double- or triple-pane windows do not automatically guarantee good performance if the frames or seals are damaged.
Open and close at least one window with permission. It should close fully and lock securely. A window that does not seal properly can be uncomfortable during a Toronto winter.
Check Exterior Doors and Balcony Entrances
Apartments with private entrances, balconies or terraces may lose heat through poorly sealed doors.
Inspect the edges of each exterior door. Look for visible daylight, deteriorated weatherstripping, loose handles and difficulty closing the door.
Sliding balcony doors deserve particular attention because their large glass surfaces and aging tracks can contribute to drafts. Stand near the door for a moment and notice whether the surrounding floor or air feels considerably colder than the rest of the room.
Do not assume the issue can be fixed easily after moving in. Ask whether the landlord will repair a visibly damaged seal before the tenancy begins and obtain the commitment in writing.
Consider the Apartment’s Position in the Building
Two apartments in the same building can have different heating requirements.
A middle unit may benefit from heated apartments above, below and on both sides. A corner unit has more exterior walls through which heat can escape. A top-floor apartment may experience greater exposure through the roof, while a unit above an unheated garage or loading area may have cold floors.
Consider whether the apartment is:
- On the top floor
- On a corner
- Above a garage or commercial space
- Beside an unheated stairwell
- Over a building entrance
- Partially below ground
- Exposed to strong winds
- Surrounded by other occupied apartments
A south-facing apartment may receive useful winter sunlight, although window size, shade and building orientation also affect the result. Sun exposure can reduce heating demand at certain times while contributing to excessive warmth at others.
Inspect Exterior Walls and Floors
During the viewing, notice whether exterior-facing walls feel unusually cold compared with interior walls. Cold surfaces do not prove that insulation is inadequate, but a significant difference may justify further questions.
Look for:
- Peeling paint
- Bubbling plaster
- Dark marks in corners
- Water staining
- Persistent condensation
- Musty odours
- Recently repaired sections
- Gaps around pipes or vents
These conditions may indicate moisture, air leakage or maintenance problems. They should not be treated merely as evidence of higher heating costs.
Basement apartments require additional attention. Ask about insulation, past moisture problems, ventilation and whether the floor above or surrounding foundation walls feel cold.
Make Sure You Can Control the Temperature
Ask whether the apartment has its own thermostat and whether the tenant can adjust it.
In some older buildings, heat is controlled centrally. One apartment may become too warm while another remains uncomfortable. Residents sometimes open windows during winter because they cannot reduce the heat, which wastes energy even if the cost is included in the rent.
Check:
- Where the thermostat is located
- Whether it appears functional
- Which rooms or zones it controls
- Whether each baseboard heater has a separate control
- Whether management controls the building’s temperature
- Whether supplemental heaters are needed
Ask the current tenant, when possible, whether temperatures remain consistent throughout the apartment. A landlord may know how the system is designed, but the occupant may have more direct experience with cold bedrooms or uneven heating.
Ask Whether Portable Heaters Are Commonly Used
A portable space heater in a bedroom or beside a desk may indicate that the main heating system does not warm the apartment evenly.
The presence of one heater does not necessarily mean there is a serious problem. Someone may prefer one room warmer than the rest. Still, ask why it is there and whether it is used regularly.
Relying on several portable electric heaters can increase electricity consumption. It can also point to drafts, inadequate heating equipment or poor heat distribution that should be investigated.
Never use an oven or cooking appliance to heat an apartment.
Pay Attention to Heating Equipment Condition
Heating equipment should appear secure and maintained. Look for visible damage, rust, unusual staining or blocked vents.
Do not place your hands inside equipment or attempt to dismantle anything during a viewing. Instead, ask:
- When was the system last serviced?
- Has it required recent repairs?
- Does every room receive heat?
- Are filters replaced regularly?
- Who should the tenant contact if the heat fails?
- Is there an emergency maintenance number?
Furniture should not block radiators, baseboard heaters or vents. If the unit is occupied during the viewing, existing furniture placement may reveal whether the system has enough clearance to operate properly.
Understand Toronto’s Minimum-Temperature Rule
The City of Toronto requires qualifying rental units to be maintained at a minimum indoor temperature of 21°C between October 1 and May 15 when heat is supplied at the landlord’s expense.
This rule addresses the minimum indoor temperature; it does not mean that heating is free. The lease determines whether heating or the energy used to operate the system is included in the rent.
The City provides current information about indoor temperatures in apartment units.
If an occupied apartment is consistently below the required temperature, the tenant should record indoor readings and notify the landlord or property manager. Current enforcement information can be obtained through the City or 311.
Consider Your Own Heating Habits
Previous utility bills are only a starting point because residents use heat differently.
Your costs may be higher if you:
- Work from home every day
- Prefer temperatures above 21°C
- Heat every room continuously
- Frequently open windows
- Live with young children or older adults
- Use portable heaters
- Have more household members
- Use heated floors or other electric equipment
Someone who leaves for work each morning may consume less energy than a person home throughout the day, depending on the heating system and thermostat settings.
Include a winter utility allowance when calculating your monthly expenses in Toronto. Base your budget on cold-weather bills rather than averaging only the lowest months.
Compare the Complete Housing Cost
An apartment with lower rent is not necessarily less expensive overall.
Compare the expected monthly cost using:
Rent + heat + electricity + water + equipment charges + tenant insurance
For example, an apartment with heat included may have a higher advertised rent but a more predictable winter budget. A cheaper unit requiring the tenant to pay for electric heat could cost more during colder months.
Also consider whether the apartment requires furniture, window coverings or other initial purchases. The guide to furnishing a Toronto apartment without a car can help estimate those setup expenses.
Questions to Ask Before Signing the Lease
Use these questions during the viewing or application process:
- Is heat included in the rent?
- What type of heating system does the apartment use?
- Which utility accounts must the tenant open?
- Can I see the previous 12 months of utility bills?
- Does the apartment have a separate meter?
- Can the tenant control the thermostat?
- Have the windows or exterior doors been replaced?
- Are any rooms difficult to keep warm?
- Are portable heaters normally required?
- Who maintains and repairs the heating equipment?
- Are there additional equipment or utility charges?
- Will the utility responsibilities appear clearly in the lease?
Document the answers, particularly any promise to repair windows, seals, thermostats or heating equipment before move-in.
When your tenancy eventually ends, keep these records with the other materials described in the guide to documenting a Toronto rental before leaving.
Inspect the Apartment With Winter in Mind
The best time to identify heating problems is during cold weather, but many renters must view apartments in spring or summer. When the system cannot be tested under winter conditions, place greater importance on utility bills, window condition, heating type and information from the current occupant.
No individual sign proves that an apartment will be costly to heat. However, several warning signs together—tenant-paid electric heating, damaged windows, exposed walls and unavailable past bills—should lead you to budget cautiously or investigate further.
Note: Heating costs and municipal requirements may change. Confirm utility responsibilities in the lease and review current information from the City of Toronto, the Landlord and Tenant Board and the applicable utility provider before renting.