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About Donmar Company

HVAC Professionals in Virginia & Maryland

For over 25 years and counting, Donmar Company has been a top HVAC contractor in Virginia and Maryland. We’ve provided service to over 14,000 customers over the years, and our business continues to grow primarily through referrals from satisfied home and business owners.

  • Our business model is simple:
  • Provide excellent service at an affordable price
  • Treat every customer with respect

Our high standards have resulted in recognition from Carrier, and we are proud to be one of their distinguished factory authorized dealers.

Because every home’s heating and cooling needs are unique, we believe in presenting all available options to customers and finding the right comfort solution for their unique needs. Call Donmar Company in Sterling, Virginia at 703.457.8676 or Maryland at 301.250.1899 to learn more.

Our Technicians

Our business is built on professional-quality service, and it takes top-notch technicians to meet our high standards. We hire only trained and licensed professionals who pass full background checks.

As a Carrier Factory Authorized Dealer, the majority of our technicians must hold NATE certification, the HVAC industry’s premier credential. NATE-certified contractors are simply the best at what they do, and we supplement their extensive knowledge with ongoing professional development seminars and workshops.

Because our employees are so vital to our business, we believe in treating them like family. Most of our technicians have been with us for seven or more years. Our management team promotes a drug-free, safe working environment and remains committed to training and caring for all of our staff.

Providers of Affordable Green Technologies

We’re big believers in green technology, energy efficiency, and clean air. Federal tax credits of up to $500 are available for homeowners who upgrade to greener technology, and our experts are ready to help you pick out a system that will qualify. Since the HVAC industry is constantly working to make more efficient systems, we offer plenty of discounts and specials to help our friends and neighbors upgrade at a price they can afford. Our friendly customer service representatives are always ready to discuss your service needs and recommend the best course of action for your home and family.

Contact our Virginia and Maryland HVAC professionals to find out how we can help you breathe easier. Request a service today!