Cornwall HVAC Professional

Professional HVAC advice
from the experts you trust

We’re here to give you clear and trusted HVAC info so you can make a more informed choice for comfort of your home or office.

We sell, repair and maintain Heating, Cooling and Ventilation systems for your home or office in Cornwall and S.D. & G. We’re the area’s only authorized Lennox Partner giving us access to high-quality and reasonably priced equipment so we can be sure to find the right unit at the right price for you.

Let's Get Started


Our team are all certified, licensed, insured and highly-trained experts.

Emergency Calls

Our customers get 24/hr emergency response service day or night.

Fair prices

Get great pricing and flexible terms to fit any job and budget.

Hear from our Happy Customers

Superior service! Had the office follow up on my Lennox rebates when they hadn’t gone through. Nice to see service past just the install of the equipment! Thanks!!

Rob Merriman, from Cornwall

The team at Tartan were great to deal with. Would highly recommend to anyone requiring installations or service!

Ian Henderson, from Ottawa

On this horribly Hot Day……Tartan were over in about 20 minutes after we called, to get our AC working. THANK YOU!!!!!

Monique Williams, from Cornwall (via Facebook)

Ask a Question, Get a Quote, or just say Hi!