Heat. Cool.
Fixed right.
Dupont Heating & Air Conditioning Ltd has worked out of 1400 Dufferin Street since 1964. Furnace, boiler, heat pump and air conditioner installation, repair and maintenance for homes and businesses across Toronto and Oakville — with a 24/7 emergency line answered by technicians, not voicemail.
Furnaces
High-efficiency gas furnace install, repair and tune-ups — sized to your home, quoted in writing.
Air conditioners
Authorized Carrier dealer. Central AC installs and repairs on all major brands.
Heat pumps
Year-round heating and cooling in one system — honest advice on candidacy.
Boilers & radiators
Hydronic boilers for homes and multi-residential buildings, all makes and models.
Ductless mini-splits
Fast installs for additions and rooms without ductwork.
Hot water
Tanks and hot-water heating systems; modern tanks can cut water-heating energy up to 40%.
Custom ductwork
Designed and fabricated in our own shop.
Commercial HVAC
Rooftop units, commercial boilers and hot water for businesses.
24/7 emergency
Nights, weekends, holidays — a technician answers.
Residential
- Installs — written quotes, two or three real options.
- Repairs — diagnostics first, plain-language explanations.
- Maintenance — annual tune-ups that keep warranties valid.
- Rentals & financing — monthly payments, not one big bill.
Commercial
- Boilers — multi-residential to large plants.
- Rooftop units — installed and serviced for retail, office, warehouse.
- Hot water — commercial tanks and heating systems.
- Ductwork — fabricated and installed for proper airflow.
Word of mouth.
"Forty years a customer. Our furnace needed a part — they shut it down safely, ordered it, and had us running the same day it arrived."
Xxxxx xxxx xxxxxxxx xxxxxxx xxxx xxxxxxxx xx xxxxx.
Xxxxx xxxx xxxxxxxx xxxxxxx xxxx xxxxxxxx xx xxxxx.
You call
Describe the problem. We book a visit.
We quote
On-site look, written quote, no pressure.
We work
Licensed techs, drop cloths, walkthrough.
We back it
Workmanship warranty on every install.
| Sample pricing | From | |
|---|---|---|
| Furnace tune-up | Annual visit | $129Sample |
| AC tune-up | Annual visit | $89Sample |
| System replacement | Quoted on-site | $4,900Sample |
Serving Toronto and Oakville and surrounding areas — Etobicoke, North York, Scarborough, Mississauga, Vaughan, Markham, Richmond Hill, Burlington.
Tell us what's
going on.
Do you offer 24/7 emergency repair?
Yes — every day of the year. (555) 010-2030, and a technician answers.
Do you service all makes and models?
Yes. All major brands, plus authorized Carrier dealer installs.
How often should I service my equipment?
Once a year per system — keeps warranties valid and efficiency up.
Can I finance or rent equipment?
Yes. Rentals and financing available.
Do you do commercial work?
Yes. Boilers, rooftop units, hot water and ductwork for businesses.