Niagara Region's Heating & Cooling Specialists
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Serving all of the Niagara Region:
Welland, Niagara Falls, Port Colborne, St. Catharines, Fort Erie, Thorold, Lincoln, Pelham and more!

See 5-star Reviews From Customers Like You

Amazing service. They came out within a few hours of me calling which is just outstanding. The technician that helped me out was excellent, figured out the issue and resolved it in no time. Very educational and showed me how the furnace works, what to look for, and how to avoid a repeat of the issues. Highly recommend! Could not be happier with the service.

Fil

Fast efficient service. Very knowledgeable and honest as well as reasonable. Thank you for fixing my AC in 30 minutes especially when it’s 90 out there. THANK YOU FOR COMING WITHIN 20 minutes of my call. Best business I’ve dealt with. Very friendly and you didn’t try to steer me the wrong way with price THANK YOU THANK YOU AGAIN Dave Williams.

Diane

I wanted to pass along a thank you note for the fine job you did this past week. You were very professional and patient with me and took the time to explain to me the problem. The work site was very clean after the work was done. I’m very satisfied and would highly recommend this outstanding company to friends and family.

Natalie

Very happy with my experience with Williams Kool Heat. Dave and his team are very knowledgeable and friendly. They were also very efficient and true to their word. I would highly recommend Williams Kool Heat to anyone.

Adam

Very satisfied with my service. My call was returned right away, and I had the option of him coming to fix it in the dark. I opted for early morning, and he fixed it quickly as well as telling me valuable info about my unit. Professional, efficient and friendly.

Miles

Excellent service and very thorough. I was very thankful Dave was able to fix my AC on a Friday night of Canada Day weekend. I highly recommend and will call again for any future issues.

Ty

Excellent company. Dave is a fantastic guy to deal with and super friendly. And they’re response time for me has always been great. I won’t be going to anyone else that’s for sure!

Kyle

Professional. Honest. Responsive. Helpful. Great service. Absolutely the best! I found my new furnace and air repair/service company!

Nicky

My experience with Williams Kool Heat is what everyone should get. They came in assessed my air conditioning problem and fixed what was wrong no upselling. Would recommend them to anyone, plain and simple honest people.

David

Excellent service! Thanks Dave for your prompt and courteous service. The AC was up and running in less than 20 minutes. We would highly recommend Williams Kool Heat for anyone looking for quality service at a fair price.

Joan

Contact Niagara’s 5-Star Rated Heating & Cooling Company

Serving all of the Niagara Region:
Welland, Niagara Falls, Port Colborne, St. Catharines, Fort Erie, Thorold, Lincoln, Pelham and more!

CALL NOW: (866) 351-6948
TSSA, HRAI, Welland Chamber of Commerce

5-Star Rated HVAC Company – Over 30 Years Experience

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Years Experience
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5-Star Customer Reviews
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Satisfied Customers

We understand that malfunctions in your heating and cooling systems can arise unexpectedly and leave you freezing or sweating. Whether you are in need of an emergency service or system maintenance, call Williams Kool Heat Inc for assistance with installation or preventative maintenance cleaning. Our experienced HVAC technicians can provide fast and friendly service, as well as, sales and installation of various types of HVAC equipment to meet your needs and budget.

Available 24/7 for Emergency Repairs

TSSA, HRAI, Welland Chamber of Commerce

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