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Business Details
36 Years
experience
Emergency
services
Trusted Commercial HVAC Services in Gaithersburg, MD
Founded in 1990, Diversified HVAC has established itself as a trusted commercial heating and air conditioning partner in the Maryland, DC, and Virginia business corridors. As a family-owned business, we prioritize core values of integrity, excellence, and community involvement in every service call. Our team of trained technicians delivers specialized business-to-business HVAC solutions, including installation, maintenance, and emergency repair services for commercial properties ranging from schools and medical facilities to retail spaces and server rooms.

With over 30 years of experience, we provide 24/7 service, quarterly maintenance inspections, and customized solutions tailored to meet the unique needs of property managers and commercial clients. Our commitment to quality extends to refrigeration systems, air purification, and energy-efficient technologies, ensuring optimal comfort and operational efficiency for our clients. Headquartered in Gaithersburg, MD, we serve the DMV region with a focus on building long-term vendor relationships and delivering exceptional customer service.
Services
HVAC Service and Repair Commercial HVAC Installation HVAC Maintenance Split AC Units Rooftop Package Units Chillers and Cooling Towers Boilers Water Source Heat Pumps Refrigeration and Ice Machines Exhaust Fans
Details
  • Year established: 1990
Highlights and features
  • We offer 30+ years of specialized commercial HVAC experience.
  • Our team provides 24/7 emergency service and maintenance programs.
  • We specialize in energy-efficient solutions for diverse commercial properties.
  • Our family-owned business prioritizes integrity and personalized service.
  • We service all commercial HVAC equipment types from any manufacturer.
Services
Commercial HVAC Installation
We install comprehensive commercial HVAC systems including split AC units, rooftop package units, and water source heat pumps. Our solutions cater to diverse properties like schools, server rooms, and manufacturing facilities. With expert design and implementation, we ensure energy efficiency and compliance with industry standards while accommodating future expansion needs.
HVAC Maintenance
Our maintenance programs include quarterly inspections, emergency service calls, and customized agreements for commercial HVAC systems. By proactively addressing potential issues, we help property managers avoid costly breakdowns and maintain optimal system performance year-round across Maryland and Virginia.
Chillers and Cooling Towers
We provide installation and maintenance for industrial chillers and cooling towers used in manufacturing, server rooms, and large commercial spaces. Our systems efficiently manage heat removal in high-demand environments, ensuring reliable operation for critical processes in food processing, biotech, and data centers.
Boiler Services
Our boiler services include installation, emergency repair, and maintenance for commercial heating systems. We handle natural gas, propane, and electric boilers, offering retrofitting solutions and routine inspections to ensure safe, efficient operation in warehouses, residential complexes, and industrial facilities.
Server Room Cooling
We design and maintain specialized cooling systems for server rooms and data centers. Our solutions address 24/7 operational demands, humidity control, and scalability needs. By ensuring continuous system performance, we help protect critical technology infrastructure and support lease retention for commercial property managers.
Questions
What commercial HVAC services do you offer?
We provide installation, maintenance, and repair for all commercial HVAC systems including split AC units, chillers, boilers, and server room cooling solutions.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service for commercial HVAC issues across Maryland, DC, and Northern Virginia.
What areas do you service?
We serve the DMV region including Gaithersburg, Maryland, and surrounding areas in Virginia and Washington DC.
Are you a family-owned business?
Yes, we've been family-owned and operated since our founding in 1990.
What types of commercial properties do you serve?
We work with schools, server rooms, retail spaces, manufacturing facilities, and various commercial buildings requiring specialized HVAC solutions.
Do you service all HVAC equipment brands?
Yes, our technicians can maintain and repair commercial HVAC equipment from any manufacturer.
Reviews (4)
Leslie D.
Jun 17, 2021 Report
This company was highly recommended by the general manager of our 170-unit apartment complex. Over the last five years, three of their technicians have come to our apartment to repair our central air conditioning system. They were all excellent. Given the configuration, there is not a lot of space in which to repair the A/C components. Nevertheless, they've managed to do it. They're conscientious, creative problem solvers.
Carla V.
Oct 13, 2017 Report
They are quick to respond but kept adding charges to my quote and changing stories each time I talked to them. Then they made it sound I was one making things up. After me deciding not to use them on the principal of them jacking up the price over $200 of what I originally quoted (and paying a $310 Service call fee) I decided to go elsewhere. I had my unit repaired for under $500. Diversified quoted me $1088 (on top of the $310 Service fee). Chalk it up to experience. I will be more vigilant in the future and NOT go with the company that can get to me the quickest!
Shane R.
Feb 02, 2014 Report
Had a small project of moving a gas exhaust duct a while back. The technician came out and said he would feel bad about charging me to do something so simple. He gave me some simple instructions and I was able to do it after he left. A while later I had an issue with my furnace so I asked him to come out again. He was incredibly professional and very knowledgeable, got my system up and gave me some great tips for maintaining it for the future. If you are looking for a reliable and competent HVAC service, this is it! I will never use anyone else. Top notch!
Maria F.
Jun 22, 2011 Report
Technician was on time, polite, and quickly went to work replacing the motor on the outside coil. Not happy with the undisclosed billing charges, Fuel charge of $14.00 and Travel Charge of $52.50