By Mario Vaghei, General Manager, Aire One Peel Heating & Cooling · Published October 9, 2026 · Facts verified October 9, 2026
This page is for Mississauga and Peel Region homeowners who want their furnace checked before winter: what our yearly maintenance visit covers, who is allowed to do the gas work in Ontario, how a plan compares with a single visit, and when a problem is a repair call rather than maintenance.
On this page
What the visit covers · Maintenance or repair? · Who can do it in Ontario · Plan or single visit · Between visits · Reviews · FAQ
Short answer
Book one professional furnace maintenance visit a year, before the heating season. TSSA, Ontario's fuel-safety regulator, advises having all fuel-burning appliances inspected annually by a TSSA-registered fuel contractor, and Enbridge Gas gives the same advice for furnaces.
Aire One Peel's yearly furnace maintenance is a 21-point inspection with a safety check for gas and carbon monoxide. It is included in all three of our protection and maintenance plans, which start at $10.99 a month plus tax with no term. Call 905-564-8545 to book a visit or ask about a plan.
What the yearly maintenance visit covers
Our annual visit is a 21-point furnace inspection that includes a safety check for gas and carbon monoxide. A complete gas furnace service works through five areas, which is also a fair way to judge any contractor's checklist:
- Safety: the high-limit and other safety controls, the gas piping to the furnace, and a test for elevated carbon monoxide.
- Combustion: the burners and the flame, the flame sensor, and the gas pressure, so the furnace burns the amount of gas it was designed for.
- Venting: the vent connector, the full venting run to its termination outside, and the supply of combustion air.
- Heat and airflow: the heat exchanger, the blower and its motor, the filter, and the temperature rise between the supply and return air.
- Controls: the thermostat and the temperature set points.
Ask for the completed checklist at the end of any visit; the service checklist published by British Columbia's safety regulator includes that step. Why each item matters, and why once a year is the rule, is covered in our guide How often should I get my furnace serviced?
Maintenance or repair? What to book
Maintenance is for a furnace that works. Only the first row of this table is a maintenance call.
| What you notice | What to book |
|---|---|
| The furnace runs normally and its last service was a year ago or more | A maintenance visit, ideally before the heating season |
| The filter is grey or three months old | Nothing: change it yourself (filter guide) |
| No heat, the furnace starts and stops every few minutes, or a burning smell lasts beyond the first minutes of the season | A repair call: furnace repair |
| A carbon monoxide alarm sounds | Get everyone outside first, then call 911 or the fire department from outside (furnaces and carbon monoxide) |
| You smell gas (rotten eggs) | Leave the house; once safely away, call Enbridge Gas at 1-866-763-5427 or 911 |
Who can do furnace maintenance in Ontario
The gas side of a furnace (burners, gas valve, venting, combustion) is work for a gas technician employed by a TSSA-registered fuel contractor, not a homeowner job. TSSA puts it plainly: "Have all fuel-burning appliances inspected annually through the services of a TSSA-registered fuel contractor." Enbridge Gas, which supplies the gas but does not sell or repair furnaces, tells customers to schedule a yearly furnace inspection with a TSSA-registered HVAC contractor.
You can check any company with TSSA's Find a Registered Contractor tool before you book. Aire One Peel is a TSSA-registered fuels contractor and a Carrier Factory Authorized Dealer.
A plan or a single visit
Every one of our heating plans includes the yearly 21-point inspection and the gas and carbon monoxide safety check. The difference is what happens when something breaks:
- Bronze, $10.99 a month: the yearly maintenance visit and cover for Aire One installed accessories such as thermostats and condensate pumps.
- Silver, $19.99 a month: the yearly visit plus parts and labour on furnace repairs up to $750 a year, with no deductible.
- Gold, $28.99 a month: the yearly visit, installed accessories, repairs up to $1,000 a year with no deductible, and 25 per cent off furnace filters and humidifier pads or free delivery.
Prices are plus applicable taxes, the plans have no term, and some conditions apply; the written agreement sets out the exclusions, limits and fees, so read it before you enrol. Plans that also cover an air conditioner, and the full comparison, are on the protection plans page. If you would rather pay per visit, call us to book a single maintenance visit.
Between visits: four jobs that stay yours
- The filter. Enbridge Gas says to change or clean it at least every three months; your owner's manual gives the exact interval for your model.
- Clear space. Keep supply and return registers open and unblocked, and keep storage away from the furnace.
- The vents outside. Exhaust and intake pipes must end outdoors and not be cracked, corroded or blocked; after a snowfall, check that snow or ice has not covered them.
- Carbon monoxide alarms. Test them monthly and replace batteries as needed, following the manufacturer's instructions.
The full pre-season routine is in Furnace ready for winter: 8 easy checks.
What customers say about our maintenance visits
"Very fast and efficient maintenance visit for furnace and A/C. The technician Poya K. was very knowledgeable and friendly."
Eileen G., Google review, October 2026
"Service tech was friendly and efficient. Asked me if I had any questions, and made suggestions that would help me keep my furnace running well."
Frankie I., Google review, October 2026
"He was professional, friendly, and explained everything clearly. He did a thorough job and made sure everything was working properly before leaving."
Dowa D., Google review, October 2026
"prompt, efficient and friendly technician. easy to book a convenient time."
Perry S., Google review, October 2026
We serve Mississauga, Brampton, Etobicoke, Milton, Georgetown, Caledon and Bolton.
Furnace maintenance: frequently asked questions
What does a furnace tune-up include?
A complete gas furnace service checks the safety controls, gas piping and carbon monoxide; the burners, flame sensor and gas pressure; the venting and combustion air; the heat exchanger, blower, filter and airflow; and the thermostat. Aire One Peel's yearly visit is a 21-point inspection that includes a safety check for gas and carbon monoxide.
Can I do furnace maintenance myself?
Partly. Changing the filter, keeping registers and the area around the furnace clear, checking that outside vents are not blocked, and testing carbon monoxide alarms are homeowner jobs. Burners, the gas valve, venting and combustion checks are for a gas technician from a TSSA-registered contractor.
Is a maintenance plan better than a one-time tune-up?
It depends on whether you want repair cover. Bronze ($10.99 a month plus tax) is maintenance only. Silver and Gold add parts and labour on repairs up to $750 or $1,000 a year with no deductible. All three include the yearly 21-point inspection and have no term.
Does furnace maintenance include a carbon monoxide check?
Ours does: every Aire One Peel plan visit includes a safety check for gas and carbon monoxide. It does not replace carbon monoxide alarms; keep certified alarms in the home and test them monthly.
How do I book furnace maintenance in Mississauga?
Call Aire One Peel at 905-564-8545 or request a visit on our contact page. We serve Mississauga, Brampton, Etobicoke, Milton, Georgetown, Caledon and Bolton, and booking before the heating season leaves time to act on anything the visit finds.
Sources and references
- TSSA, Carbon Monoxide, the "Silent Killer": What Ontarians Need to Know this Winter, November 3, 2025.
- TSSA, Find a Registered Contractor.
- Enbridge Gas, Natural gas appliance safety, read October 9, 2026.
- Enbridge Gas, Smell natural gas? What to do right away, read October 9, 2026.
- Natural Resources Canada, Residential furnaces, modified March 19, 2025.
- Technical Safety BC, Information Bulletin: Annual Servicing for Gas Appliances, May 19, 2010 (service checklist used as a reference list).
- Aire One Peel, Protection plans, prices and inclusions as listed on October 9, 2026.