Business Details
19 Years
experience
Emergency
services
Trusted HVAC Services in Mississauga
At Coretemp Heating & Air, we leverage over 30 years of industry expertise to deliver flawless installation, repair, and maintenance of residential HVAC systems across Mississauga, Oakville, Milton, Georgetown, and Burlington. Founded in 2007 by Richard Payer, our family-owned business prioritizes customer education and satisfaction, ensuring homeowners receive tailored solutions without unnecessary upselling. Our team of fully licensed, certified, and insured technicians meets or exceeds Ontario regulatory standards, including TSSA licensing, Skilled Trades Ontario certification, and WSIB insurance.We specialize in air conditioning, furnace systems, tankless water heaters, and high-quality HVAC accessories, all backed by manufacturer warranties and factory-trained expertise. With 24/7 emergency service availability, a 5-star Google rating, and a 99% satisfaction score on HomeStars, we guarantee reliable, transparent service. Our commitment to excellence is reflected in our 100% satisfaction guarantee, refusal to use subcontractors, and dedication to using only products we trust in our own homes.
Services
Air Conditioner Repairs
Furnace Maintenance
Tankless Water Heaters
HVAC Accessories
24/7 Emergency Service
Details
- Year established: 2007
Highlights and features
- We offer 30+ years of HVAC experience with factory-trained technicians.
- Our team is fully licensed, certified, and insured for safety and compliance.
- We provide 24/7 emergency services for urgent HVAC needs.
- Satisfaction guaranteed on every project with no subcontractors used.
- We install quality products trusted in our own homes with strong warranties.
Associations and certifications
- TSSA licensed
- Skilled Trades Ontario certified
- ODP certified
- WSIB insured
- Lennox
- RUUD
- Rinnai
What people say
5-star Google rating
Quick repairs
Certified technicians
24/7 availability
Satisfaction guaranteed
Services
Air Conditioner Repairs
Our licensed technicians provide 24/7 emergency air conditioner repairs, ensuring rapid resolution for faulty systems. Using factory-trained expertise, we service all brands and models, prioritizing energy efficiency and longevity. Customers benefit from transparent diagnostics and durable solutions tailored to their home's cooling needs.
Furnace Maintenance
Preventative furnace maintenance optimizes system performance and extends equipment lifespan. Our technicians conduct comprehensive inspections, cleaning, and adjustments to ensure safe, efficient operation. Homeowners receive actionable advice to avoid costly breakdowns during peak winter months.
Tankless Water Heaters
We specialize in Rinnai tankless water heater installations and repairs, offering endless hot water with energy-efficient technology. Our experts size systems precisely for household demand, ensuring compact, durable solutions that reduce utility costs while maintaining reliability.
HVAC Accessories
Enhance indoor air quality with HEPA filters, smart thermostats, and humidifiers from trusted brands. Our accessories integrate seamlessly with existing systems, improving comfort and efficiency while meeting rigorous performance standards for residential environments.
24/7 Emergency Service
Critical HVAC failures demand immediate attention. Our round-the-clock emergency service guarantees prompt technician dispatch for furnace or AC failures, minimizing discomfort. Rapid response times and after-hours availability ensure peace of mind for urgent heating or cooling needs.
People
Richard Payer
Owner and Founder
With over 30 years in HVAC, Richard Payer established Coretemp in 2007 after gaining hands-on expertise as a technician. He personally oversees projects, prioritizing customer education and ethical recommendations while maintaining family-run business values.
Questions
What HVAC services do you offer?
We provide air conditioning, furnace systems, tankless water heaters, and HVAC accessories with installation, repair, and maintenance services.
Are your technicians certified?
Yes, all technicians are TSSA licensed, Skilled Trades Ontario certified, and factory-trained for major brands.
Do you offer emergency services?
Yes, we provide 24/7 emergency HVAC repairs for urgent heating or cooling needs.
Which areas do you serve?
We serve Mississauga, Oakville, Milton, Georgetown, Burlington, and surrounding areas in Ontario.
Is financing available?
Currently, we do not offer financing options but provide transparent pricing with no hidden fees.
What guarantees do you offer?
We guarantee 100% satisfaction with all projects and back installations with manufacturer warranties.
Reviews (7)
Andrew McConnell
Jan 26, 2022
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
We replaced our furnace with Coretemp in 2013. Since then they have been reliable in both yearly service and emergencies. The furnace went out late last night. They helped me get it going this morning over the phone and we're here in under an hour to put a permanent fix in place. All on Saturday morning. I can't recommend them enough.
We replaced our furnace with Coretemp in 2013. Since then they have been reliable in both yearly service and emergencies. The furnace went out late last night. They helped me get it going this morning over the phone and we're here in under an hour to put a permanent fix in place. All on Saturday morning. I can't recommend them enough.
Steve Carreira
Jan 01, 2022
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Had reliance come to my home when I had my furnace break. Gave me a run around about needing a new furnace. Called Richard and was blown away with the help and guidance he provided and next day my furnace was fixed and no new furnace was needed. Would def recommend to anyone I know !
Ariella F.
Nov 30, 2021
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My furnace stopped working on the first colder Friday evening of the year. I was desperate to find someone who could help me quickly since I have a small infant at home. Richard saw that I phoned and phoned me back, almost immediately. He talked me through my concern and even though I'm quite far from his regular area, he came over and had my furnace back in working order within hours. I've been able to count on Richard and his associates to be friendly, helpful, dilligent, and trustworthy over the last ten years. Thank you for helping me out, yet again!
Kin Kuok
Nov 13, 2021
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We just moved in a house and think it is better to have the furnace checked. My friend recommended CoreTemp to us. While it takes 2 weeks to book our first appointment, Erik from the company is very nice explaining the details of the visit. I would like to say a big THANK YOU to his service, attitude and the knowledge that we learn from him.
Jan Jean
Sep 16, 2021
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My husband and I are very happy that we went with Coretemp Heating and Air to replace our AC.
Richard and Eric were punctual, friendly, professional and extremely knowledgeable. What really stood out for me was how they respected my home as if it was theirs. Without me even asking, they removed their shoes upon entering my house. We live in a townhouse and unfortunately there is no direct access to our backyard... so they had to bring the dismantled AC (which had been leaking oil) through my house. They carefully brought it thru the house without any problem. They were very quick... everything
Richard and Eric were punctual, friendly, professional and extremely knowledgeable. What really stood out for me was how they respected my home as if it was theirs. Without me even asking, they removed their shoes upon entering my house. We live in a townhouse and unfortunately there is no direct access to our backyard... so they had to bring the dismantled AC (which had been leaking oil) through my house. They carefully brought it thru the house without any problem. They were very quick... everything
Eddie K.
Sep 11, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Core temp installed a Lennox Furnace for us about 5 years ago and have been back a few times for maintenance matters. Richard is very responsive, and Erik has always done quality work when he has come for maintenance. Friendly service and reliable. Highly recommended!
Core temp installed a Lennox Furnace for us about 5 years ago and have been back a few times for maintenance matters. Richard is very responsive, and Erik has always done quality work when he has come for maintenance. Friendly service and reliable. Highly recommended!
David Lui
Aug 10, 2021
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Our hot water tank was leaking and we called Richard (the owner) on a Saturday and he picked up right away. By Monday morning he was at our house with a quote and a solution. By Wednesday it was all perfectly installed and he fixed all the other things wrong in our furnace room!! All I can say is what a professional and clean, clean, clean!! Amazing and thank you Richard, I have my HVAC guy for life!
