Heating & Cooling Services Calgary Can Rely On

Helping Families Like Yours Love Their Home Environment

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Furnace & AC

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Installation & Repair

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24/7 Emergency Service

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Easy Financing Available

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Trust an Owner-Operator That Cares!

Expert Independent HVAC Contractors

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Heating Services

From minor furnace repairs to complete furnace replacements. We service all makes and models.

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Cooling Services

You guessed it – air conditioner repairs, service, and new air conditioner installation.

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Indoor Air Quality

Humidifiers and air purifiers greatly improve the quality of Calgary’s dry and dusty air.

Providing heating and cooling services for Calgary, including all of its quadrants and surrounding communities.

NE Calgary




Saddle Ridge


NW Calgary

Arbour Lake




Royal Oak

SE Calgary


Lake Bonavista

New Brighton

Quarry Park


SW Calgary






Surrounding Area



High River



Need immediate service? Please call us.

(403) 476-9587

Your Satisfaction is Our Goal

A Sample of our Real Customer Reviews

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"I had a query about a sound I heard with my furnace and David was SO friendly and SO kind! He walked me through a few things I could try and look into myself - learned some things I never knew! He also gave me great information about other products and services available. If you want to work with a great human, call David!"

Sandra McQueen

"I was having problems with the heater in my garage (It wasn't working!) and called on David. He came out within a few days, was on time, and did a great job. He not only fixed the problem but also identified a couple of others and suggested I call the appropriate services so as to prevent future damage to my garage/roof. He did a great job, went above and beyond, and was professional and helpful! I would definitely call on him again for future needs!"

Lorna Stuber

"I used David with Lancelot Furnace for a second on a few of my installs and have had great luck with his quality of work as well as his professional behavior. Would definitely use him again."

Sean Mcquarrie

Book a Service

24/7 Emergency Furnace & AC Service Available

Need immediate service? Please call us.

(403) 476-9587

As Local as It Gets!

Why Choose Lancelot Furnace Ltd. Heating & Air Conditioning?

We'll Treat You Right

Years of working in HVAC and servicing homes and businesses across Calgary have helped us truly understand the level of service and professionalism our customers expect from us – and we’re here to deliver!

Fair & Honest Pricing

Transparency is the name of the game when it comes to building trust.

Our estimates break down all expected parts and labour costs, with no hidden fees.

Expert Installations & Repairs

From small repair work to major HVAC system overhauls, our team of HVAC technicians have the experience, expertise, and know-how to get the job done.

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Easy Financing Available

Finance up to $75,000 with interest rates as low as 8.9% over 25 years. We offer financing for large projects like new furnaces, AC units, heat pumps, air quality control, heated floors, solar panels, window replacements, boilers, hot water on demand, home renovations, and more!

Our Phone Number

(403) 476-9587

Get in Touch

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Proudly Serving

Calgary & Area