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Otis Mechanical is a heating and cooling company with a 5-star Google rating from 31 ratings. Its Connecticut HVAC licence, number HTG.0405721-S1, is active on the state registry under the holder Otis Mechanical LLC. The company's website names Hartford as its service area and also lists plumbing work such as water heaters, water line installation and shower and tub installation. A 2023 customer who woke up without heat said Dimitri was at the house within an hour, found the issue with the boiler and made the repair while showing exactly what he was doing. In a 2023 review, a customer said Dimitrios had their heating issue diagnosed in minutes and got it up and running in an hour. In a 2022 review, a customer said Dimitrios came out to their home after hours on a 100-degree day and repaired an air conditioning unit they had thought was a total loss. A 2022 reviewer said Dimitri fixed the problem and explained how they could maintain and avoid future problems. A 2026 customer said Otis Mechanical had been fixing their equipment at multiple restaurants for the last two years. In a 2025 review, a customer said they arrived and diagnosed a steam boiler problem quickly, acquired the parts and brought it back to life, all in one day. A 2024 customer said that after a mechanical failure on a Saturday evening, Otis sent a tech down at 7pm to fix their hood system, came out two days later with a brand new motor that was installed in less than an hour, and they were able to open on time.
You guys saved me! Thank you Dimitri and Nickfor you guys helping me with my project. Would highly recommend to anyone with out any hesitation! Again great job guys!
Otis Mechanical LLC Has been fixing my equipment at multiple restaurants for the last two years. Great customer service and quality work.
I was blown away with their response and commitment to our satisfaction! These guys really are professionals and they found every single issue with our equipment. Highly recommended for commercial restaurant equipment repairs.
Very very knowledgeable. Dimitri and his crew know their stuff. Had a problem with a steam boiler, they were able to arrive and diagnose the problem quickly and acquire all the necessary parts to install and bring it back to life again. Also had an electrical problem on some other equipment and they were able to fix it in a snap. All in one day. Experts.
I recently had the pleasure of working with Otis mechanical, and I can’t say enough good things about their service. From the initial consultation to the final repair, every step was handled professionally and efficiently. The technicians were not only skilled but also courteous and respectful of my business. If you’re looking for reliable, honest, and top-notch HVAC professionals, use Otis. They exceeded my expectations, and I wouldn’t hesitate to recommend them to anyone!
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1 change recorded — last scanned Oct 30, 2026.
Typical Connecticut range for this kind of work, from regional averages — not a quote from Otis Mechanical LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,700 – $10,700
Typical HVAC project around $7,700
Water heater delivered and installed the same day5.0
Boiler replacement where Matt ruled out a chimney liner4.6
Water heater repair4.6