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Virginia Office


Maryland Office

Montgomery County HVAC Company

Consistent Service & Customer Care with a Personal Touch

At Donmar Company, we have been providing the highest-quality HVAC services to Montgomery County and Northern Virginia for more than two decades, and have the wealth of experience, knowledge, skills, and tools to effectively assist you. Our business is dedicated to the 100% satisfaction of each customer, and committed to consistent quality-of-workmanship with a personal touch.

Whether you are looking for brand-new installation, regularly scheduled maintenance to keep your system functioning well throughout the year, emergency repair, or anything in between, we are your one-stop HVAC shop!

Some of the advantages of choosing us for your Montgomery County HVAC needs include:

  • A BBB-Accredited with more than 25 years of experience in the HVAC industry
  • A comprehensive range of services to meet all your HVAC needs
  • NATE-certified technicians who are highly knowledgeable in repair, maintenance, and installation methods
  • A Carrier Factory Authorized Dealer that has won the Carrier Presidential Award for two years in a row in 2014 and 2015
  • Free replacement estimates
  • Participation in utility rebate programs of PEPCO and Dominion Power
  • A track record of successfully completed projects, as seen through numerous excellent reviews on Home Advisor and Customer Lobby
  • Special Financing Options with Approved Credit

Call Us Now to Get Your Free Estimate!

Each customer and each HVAC system that we serve in Montgomery County is unique, and has unique needs. We fully understand this, and custom-fit each of our services to ensure that you get the specific and quality care you deserve. For the latest and greatest products, techniques, and customer care, we are the place to go.

Contact Donmar Company now in Virginia at (703) 457-8676 or 301-250-1899 for Maryland residents.