Furnace Installation and Services



Furnace, Boiler, Rooftop





Alliance HVAC Air condition and cooling system contractor



Air Conditioner, Ductless, Rooftop



Hot Water Tank and Tankless Water heater installation contractor



Tankless Water heater, Tank Water heater



INDOOR AIR QUALITY installation Humidifiers, programmable thermostats, HRV



Humidifiers, programmable thermostats, HRV



Best Price Furnace - Boiler - Air Conditioner - Water Heater Service & Installation Toronto & GTA

Same Day Emergency Heating and Furnace Service - No Diagnostic Charge
Furnace and AC Ontario
Rebates 2019, Ask us for more info

Alliance Energy Source as a Lennox Premier Dealer and HVAC Contractor, supplier/installer specialized in furnace repair. We carry all major brands including York, Lennox high efficiency new Furnace Installation, new Boiler, Water Heater & new Air Conditioner.  Contact us for affordable quote & price, Rental/Financing with high quality service from professional technicians for residential and commercial uses. If you are looking for HVAC company near me, furnace cost or you need a furnace replacement, you are in the best place. We are specialized in:


Lennox High Efficiency Furnace & Air Conditioner Installation by knowledgeable technicians

All our Heating & AC Products are highly energy efficient, which are not only high quality but also save energy which saves you dollars. Our knowledgeable and licensed technicians are always ready to respond to any service call



Our Service Location Cities


Markham, AjaxNorth YorkThornhill, Mississauga, Toronto, Brampton, Scarborough, Oakville, Aurora, Richmond Hill, Milton, Newmarket, Etobicoke, Burlington, Concord Vaughan




Superior HVAC Service


We are proud to be a Lennox Premier Dealer  and our goal is to deliver a level of comfort and service that exceeds customer expectations. Because Lennox Premier Dealers understand that actions speak louder than words, instead of just talking quality, they practice it through listening and responding to your comfort needs.

We started our family business operation in the early 2000. Over the years it has grown up into one of the most well known & established company providing people with quality products & solutions for heating and Air conditioning services in the GTA. We are your single source for all of your Heating & Air Conditioning needs.


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That's Why the People Normally
Chose Us!

  • Very knowledgeable, licensed Technicians
  • We are an award winning company.
  • 100% Customer Satisfaction Guarantee.
  • Punctuality & Professionalism.
  • Price Guarantee.
  • Honesty and Reliability.
  • We honor all manufacturers parts warranties.
  • Senior Discounts.
24/7 Furnace Air Condition Emergency service call

Call Alliance HVAC for Furnace repair

Lennox Premier Dealer HVAC

Alliance HVAC Replace your Lennox Furnace and AC With High Standards

Furnace Air Conditioner discount coupon



Find additional savings on many sales and services at ALLIANCE. Browse our online coupons and simply print the ones you need.

Furnace Air Conditioner zero interest financing



ALLIANCE  makes home comfort affordable for customers on all budgets. Apply for financing and get fast approval using our easy online form.

Furnace - Boiler - Air Conditioner - Service - Repair - Troubleshooting



Having trouble with the heating or cooling systems in your home?ALLIANCE has the answers!

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      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| Whitchurch-Stouffville | Clarington | Scugog | Etobicoke | Mississauga | Brampton |  Caledon


      Copyright @ 2019. ALLIANCE ENERGY SOURCE. All Right Reserved