Commercial HVAC/R

in the Baltimore Metro and Surrounding Areas

Our Services

Aerial view of a building with surrounding parking lot, several parked cars, trees, and nearby street with a few vehicles.

Preventative Maintenance

Ensure your commercial HVAC/R systems operate efficiently year-round with Kelly Mechanical Services’ comprehensive preventative maintenance program. Our expert technicians provide scheduled maintenance tailored to the unique needs of your business, keeping your heating, cooling, and refrigeration systems running at peak performance.

Construction workers installing a large metal ventilation or air handling unit on a flat rooftop, some workers are gathered around the unit and others are working nearby.

Installations and Repairs

Trust Kelly Mechanical Services for professional installations and reliable repairs of commercial HVAC/R systems. Our experienced technicians are dedicated to delivering high-quality solutions that ensure your business remains comfortable and operational.

Workers in high-visibility vests and hard hats operate a crane lifting large rooftop equipment on a commercial building under a clear blue sky.

Large Scale Projects

When your project demands heavy lifting and precision, Kelly Mechanical Services has the expertise and equipment to handle even the most challenging large-scale HVAC/R installations and upgrades. From towering rooftops to expansive facilities, we bring innovative solutions and a skilled team to get the job done right.

About us

Kelly Mechanical Services was founded in 2008 by Michael T. Kelly after spending 25 years in the HVAC industry. He resides in Harford County, Maryland with his wife Lois and his two dogs. We, at Kelly Mechanical Services, believe in providing honest, intelligent, high-quality service and preventative maintenance to the businesses we serve. Our job is to keep your business working. 

Testimonials

  • I called and the receptionist (Emily) set me up for an appointment the next day. They came and fixed the problem [&] the serviceman (Jeff) was very nice. I would recommend this company to everyone.

    Ricky W.

  • I have had nothing but great experiences with Kelly Mechanical. They’ve accomplished everything we’ve asked of them. Something that I did notice while their technicians were working is that they do not shy away from working as a team. They call and assist each other when necessary. Most importantly they have integrity. I had a nice call with Mike and Jared and they laid it out straight to me. We can either continue to repair a failing appliance or move on. They could have easily taken advantage of us and pushed for repair after repair, but they treated us with respect.

    Jonathan P.

  • I've used KM for over 20 years for residential and business. Fair and honest!

    Ryan K.

Contact Us

Hours
Monday–Friday
8am - 4:30pm