Alliance Energy Source Customer Services open 24 hours a day, 7 days a week.
If you have any questions or are experiencing problems with your, furnace, air conditioner, water heater or rooftop please contact Alliance Energy Source Customer Service.

Alliance York Region

Our  Contact Phone:

Customer Service and sales: 905-470-7555

Technical Support and Repair: 416-259-6767



Our Email :



Our Office:

Markham:19-7370 Woodbine Ave., Markham




Toronto | Markham | Richmond Hill | Vaughan | King | Arura | Newmarket | Stouffville | Georgina | East Gwillimbury


Looking for Best HVAC Services:


  • Best Services for Repair and Maintenance

  • Best Equipment and Parts

  • Best Warranty

  • Best Installation

Furnace Installation

Furnace Repair

Furnace Service

Furnace Maintenance

Energy Saving Tips

Choosing a Right and Energy Efficient Heating For your House



Air Conditioning Installation

Air Conditioning Service

Air Conditioning Repair

Ductless Mini splits

Energy Efficient Tips

Choosing a Right and Energy Efficient Cooling For your House


High-Efficiency Package

24 Month 0% Intrest Equal Payments

Offer Ends Feb 31st

You may be eligible for a government rebate and you may also qualify for utility rebates and incentives when you purchase a Lennox® high-efficiency heating or cooling system.


Markham Office

Alliance  independent locations are Premier authorized dealers of
heating, air conditioning products in the following areas:


Toronto | Markham | Arura | Newmarket | Vaughan | Stouffville | Richmond Hill | East  Gwillimbury |Pickering | Ajax  | Whitby | Oshawa | Uxbridge| Brock | Clarington | Scugog | Etobicoke | Mississauga | Brampton |  Caledon


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