For over two decades, Atlantis HVAC Systems Inc. has been the go-to choice for homeowners and businesses in Mississauga looking for reliable heating, cooling, and air quality solutions. We recognize that Mississauga’s weather can swing from icy cold winters to humid summers, and our team is trained to handle it all. Whether you’re near Square One Shopping Centre or closer to the Lake Ontario waterfront, we’re here 24/7 to keep you comfortable.

Licensed & Insured atlantisair

Our Services

Heating Solutions

Heating & Furnaces

From high-efficiency furnace installations to prompt repairs, we ensure your home stays cozy during Ontario’s winter chills.
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Air Conditioning

Keep cool with our expert A/C services, including new installations, preventative maintenance, and emergency repairs.
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Water Heater Solutions

Tank or tankless, our team has the expertise to install and maintain the ideal system for your home’s hot water needs.
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Indoor Air Quality

Breathe easier with our humidifiers, air cleaners, duct cleaning, and germicidal lights to tackle Mississauga’s indoor air concerns.
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Commercial HVAC

Trusted by local Mississauga businesses for installations, troubleshooting, and ongoing service agreements.

Why Choose Atlantis?

20+ Years Serving the GTA:

We know Mississauga homes and commercial properties inside and out.

24-hour emergency service for unplanned breakdowns:

We’re on-call when you need us most.

Licensed & Insured:

Rest assured, our technicians are bonded, fully trained, and T.S.S.A. approved.

Financing & Rebates:

Take advantage of Enbridge or Save on Energy rebates, plus payment plans to fit any budget.

Guaranteed Satisfaction:

We stand by our work and prioritize customer happiness.

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Local Testimonial

Vector

Everything went great and the men were great – All is well!”

Norma B., Mississauga

Frequently Asked Questions

How quickly can you service my broken furnace in Mississauga?

We offer 24-hour emergency service, so you’ll never be left in the cold.

Do you install Lennox air conditioners?

Yes, as a Lennox Premier Dealer, we provide expert installation and ongoing support.

What if my water heater leaks?
Shut off the water supply, and give us a call. We’ll dispatch a technician right away to assess and repair or replace the unit.
Can you help me choose the right HVAC system for my new home in Mississauga?
Absolutely! Our comfort advisors offer free in-home estimates to discuss the best options for efficiency and comfort.
Do you service commercial properties in Mississauga?
Yes. We have extensive experience with commercial and retail HVAC projects, from rooftop units to ductless systems.

Request an Appointment Online

Ready for reliable HVAC services in Mississauga? Give us a call at (905) 845-4009 or request service online. Let’s keep your home or business at the perfect temperature, year-round.