Virginia & Maryland Heating & Air Conditioning
Make the Call for Comfort Your One-Stop Shop for Everything HVAC!

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 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.

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.

Don't Just Take Our Word for It!

See What Our Customers Have to Say About Our Service
  • “I am thankful for Paul’s service and HIGHLY RECOMMEND Donmar Company to anyone with an HVAC issue!”

  • “Your customer service is outstanding and everyone that I spoke to or met in person speaks to the nature of your company.”

  • “Really appreciate your crew. They answered all my questions and concerns, and the work appears to be impeccable!”

    Jeffrey N.
  • “Great company — replaced my furnace very efficiently and effectively. ”

    Chris C.
  • “We've been pleased with the units, but its your employees that have made the real impression - they've been uniformly fantastic!”

  • “Donmar Company defines customer service excellence to a higher level.”

    Scott H.
  • “This company is very attentive to the customer and respond to their concerns quickly.”

    Natalie M.
  • “It is so hard to find a trustworthy AC repair company and I think i have finally found it.”

  • “They are honest and straightforward with their recommendations and always give us various options. ”

    Samia K.

Request a Service Today!

We're Prepared to Handle Any HVAC Issue in Your Home
  1. Emergency HVAC Services 7 Days a Week
  2. NATE Certified Technicians
  3. Offering Free Estimates On Replacements
  4. Flexible Financing Options
  5. Quality Service With Honest Values
  6. Affordable Service Management Agreements
  7. Over 25 Years of HVAC Experience
  8. We Are On Time, Every Time
Contact Us Now
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