We called in the morning to have some minor work done and Tom was on site that afternoon. He was very thorough and conscientious in the diagnosis and repair of the issue. And, no surprises in the invoice. Very impressed with the service.

Awesome customer service (Lilliana is the best) and technical support. Jordan and Tom are the current techs that provided service but all members of the team are polite and take pride in their work. Highly recommend ATS.

It is hard (if not impossible) to find standup and honest trades for home repair or improvement. ATS Mechanical lead me through complete AC replacement with upgrades in 2021 and warranty service on multiple issues since; including a complete replacement of my outside unit more recently. They stand behind their work and they hold their providers to stand behind their products. I have recommended them to numerous friends and will continue to do so. Nothing but good things to say!

Second service on our A/C , just a checkup to make sure all is running smooth. Tom , the Tech did a great job of checking thing and explaining all that was done . Also I wanted surge protectors added to each areas in and out side. Done in sort time . All is running great all so balanced the air flow. Tom , ATS did a great job .

Our existing AC system was very old and no longer worked efficiently - it couldn't keep up with Houston heat (house was built in the 1960s, and the system was ~20 years old). We got quotes from three reputable AC companies, but ATS Mechanical's approach differed from the others. In addition to taking an unhurried assessment of our current system and the layout of the house and attic, Barry (owner) sat down with us for nearly 45 minutes to ask questions about our needs, goals, and budget. His recommended solution was an entire replacement of the attic unit, the outside compressor, all-new ductwork, an additional return in our master bedroom, a new vent fan/heater in the guest bathroom, and an up-to-date smart thermostat. Also at Barry's recommendation we got new insulation blown into the attic. Not only did all this work come at a favorable price relative to the competition, but Barry's thoughtfulness about the design inspired our confidence. The results? Even better than expected: our house is cooler, the humidity is lower, and our bills are less expensive than before the replacement. We are loving the variable-speed compressor that we got. The outside/inside differential in temperature is dramatic. All the work was done as promised: efficiently but with an eye towards detail. I've never been so satisfied with a home maintenance project. If you need expert analysis of your existing system and are considering a major replacement, I highly recommend you talk to Barry at ATS Mechanical.