Ready For a New Unit?

Find the perfect system for your home, take our quick needs assessment today.

Complete Home HVAC Assessment

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.

See Service

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.

See Service

Refrigeration

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

See Service

Gas Piping

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

See Service

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?

R
Experienced Technicians: Our skilled technicians bring years of experience and knowledge to every job.
R
Comprehensive Services: From routine maintenance to emergency repairs, we've got your HVAC needs covered.
R
Timely and Reliable: Count on us for prompt service that fits your schedule, ensuring your comfort is never compromised.
R
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.

Google
We had an amazing and speedy experience with BAU Mechanical! From the moment we realized we had a problem with our AC Unit, we knew we needed to call in the pros. Tim was my first point of contact. He was friendly and professional from the beginning. He walked me through some troubleshooting over the phone and based on that, explained what was likely the problem and had a service call scheduled for early the next day. Adam was the tech who reached out to confirm his ETA. He was knowledgeable, friendly and prompt! I asked if I could watch what he was doing as he worked and explained, I would never try fixing this on my own, but I like to learn. He was great! He explained what he was doing along the way. Adam confirmed Tim’s suspicions that it was likely the capacitor. He showed me the part, and explained a bit about it. Adam quickly replaced it as he had the part on hand, tested it and, voila—Working AC! Adam also cleaned the filter, and waited a few minutes after I turned it back on to ensure that when I turned it back on, all was working as expected. It was truly great to have such a positive experience with friendly, knowledgeable professionals without feeling any pressure to unnecessarily jump to the conclusion of replace our unit (which was a big worry for us!). Thank you so much Tim and Adam!
Google
Our pool heater stopped working showed error code, we contacted Hayward manufacturer they provided HVAC contacts in our area. We chose Bau as they had reviews regarding pool heaters the others did not. Bau was great they were able to squeeze in service call same day and had parts on hand to repair. They had heater back up and running same day at a reasonable price as our heater no longer had warranty coverage. We highly recommended the company and service tech Ryan really knows his stuff when it comes to pool heaters. TY
Google
Great experience with BAU installing our attic heat pump. Everything went smoothly, very professional crew. Highly recommend.
Google
BAU recently installed our first Air conditioning unit. They were punctual, profession and respectful. Tim was very friendly and not pushy at all. Adam and Bill had the whole unit installed by the time I got home. They were friendly and respectful to my wife and kids and were even done ahead of schedule.
Google
Great experience
Google
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.
Google
These guys are incredible!! Installed everything for us very quickly and their pricing can't be beat. Highly recommend.
Google
Very professional and knowledgeable company, have used before and will use again on many projects.
Google
Had our AC system repaired, the team was prompt and professional. Would recommend!
Google
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!

Our Blog

HELPFUL TIPS FROM OUR TEAM OF EXPERTS