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Top-Rated Heating & Air Conditioning in Kitchener-Waterloo-Cambridge

Commercial

BAU Mechanical Inc. commercial services deliver dependable HVAC installation, repair, maintenance, and system upgrades to keep your facility comfortable, efficient, and running without downtime.

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Residential

BAU Mechanical Inc. residential services provide reliable heating and cooling installation, repairs, and maintenance to keep your home comfortable and energy-efficient year-round.

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Refrigeration

BAU Mechanical Inc. provides reliable commercial refrigeration installation, repair, and maintenance to keep your equipment running efficiently and your products protected.

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Gas Piping

BAU Mechanical Inc. delivers safe, code-compliant gas piping installation, repairs, and upgrades to ensure dependable performance for your appliances and systems.

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Welcome to BAU Mechanical Inc., your trusted Kitchener-Waterloo-Cambridge team for dependable HVAC service, maintenance, and repairs. From furnace and AC tune-ups to fast diagnostics and lasting fixes, we deliver year-round comfort with skilled technicians, honest recommendations, and workmanship you can rely on.

Why Choose Us?

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Experienced Technicians: Our skilled technicians bring years of experience and knowledge to every job.
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Comprehensive Services: From routine maintenance to emergency repairs, we've got your HVAC needs covered.
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Timely and Reliable: Count on us for prompt service that fits your schedule, ensuring your comfort is never compromised.
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Customer-Focused Approach: Your satisfaction is our priority, and we go the extra mile to exceed your expectations.

SEE WHAT YOUR NEIGHBORS ARE SAYING ABOUT BAU Mechanical Inc.

mary jane D.
mary jane D.
21:31 04 Mar 26
Great service! Our furnace was not working had... another company in and they could not determine issue said we need new Furnace. Decided to get 2nd opinion and BAU technician came and determined in 5 minutes our filter was clogged due to using humidifiers. Problem resolved. Highly recommend this company.read more
Ethan M.
Ethan M.
19:24 10 Oct 25
These guys are incredible!! Installed everything... for us very quickly and their pricing can't be beat. Highly recommend.read more
Brady P.
Brady P.
18:35 10 Oct 25
Very professional and knowledgeable company, have... used before and will use again on many projects.read more
Kal D.
Kal D.
18:21 10 Oct 25
Had our AC system repaired, the team was prompt... and professional. Would recommend!read more
Sonnarc Homes L.
Sonnarc Homes L.
16:41 07 Oct 25
We've had the pleasure of working with the team... at BAU Mechanical on many past projects, as well as personal home renovation/build projects. They're responsive, efficient, and always able to offer up a solution and stand by their work. We look forward to working with them for many years to come - highly recommend!read more
Chris H.
Chris H.
00:11 04 Oct 25
Would recommend these guys. They came pretty... quick, did a good job and gave me some maintenance tips. Super easy to deal with. Pricing was fair. No complaints at allread more
Kyle G.
Kyle G.
23:25 01 Oct 25
The BAU team is fantastic! Really came through... for my family. We opened our pool this year to find out our pump was done. Responsive, fair, reliable. Would use them again. Highly recommended.read more
Tommy Z.
Tommy Z.
13:59 07 Aug 25
Great service, very reasonable pricing. Fixed the... issue quickly and didn't try to oversell anything. Will be using them for all future needs. Definitely recommend them.read more
ray C.
ray C.
13:08 12 Jun 25
The entire BAU team is very professional and a... pleasure to deal with. The team diagnosed my pool heater; the heater was beyond repair and a replacement was installed and operational within 1 day. Communication skills and their personalities made the entire process comfortable. Will definitely use them again for any hvac needsread more
Shannon H.
Shannon H.
17:40 12 Aug 24
Brad's team was part of our bathroom fan install.... They did an awesome job! They were polite, efficient and clean. Bill did a great job. Highly recommend!read more
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