Founded in 1978, GLM Mechanical Services, Inc. is a trusted provider of professional HVAC services in Owings Mills, MD, and surrounding areas. Known for their open, honest estimating and attention to detail, they deliver on time and exceed expectations. Their team holds a level of expertise that is often not found in residential projects. Unfortunately, due to worker safety, they do not offer attic installations during extreme heat. They are proud handlers of Goodman/Amana and Airtemp HVAC equipment. They also accept Visa, Mastercard, and Discover cards for transactions.