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

Fairfax, VA Heating & Cooling Services

Maintenance, Repair, & Installation of HVAC Systems

With over two decades in the industry, the team at Donmar Heating & Cooling is a name to reckon with. Our Fairfax, Virginia HVAC services have consistently surpassed the market standards, and our customers keep coming back to us because of the affordability and the expertise we offer.

From emergency repairs and fresh installations to scheduled maintenance and servicing, we offer the simplest way to make sure that your systems are working efficiently. Our exceptional track record have earned us the respect of the industry and innumerable successful projects have left customers happy and satisfied. When you call us, you are guaranteed a swift resolution to your problem!

Do you need one of the following HVAC services at your home?

Providing You With the Best Technicians in the Industry

To enhance your experience with our company, we assure you that we have selected some of the best technicians in Fairfax, VA that not just respect customers, but value their time too. Quick responses to all calls are mandatory, so whether you need a new installation or the old system repaired or replaced, our licensed technicians will be there at the scheduled time. In addition to this, our team is comprised of NATE-certified, insured and licensed professionals with years of experience in the heating and air conditioning industry. The technicians on staff are duly updated and informed about new advancements in technology, methods and products, through workshops and training programs.

We Offer Competitive Prices!

If you are looking for a free quote on new installation or replacement, please call in and we’ll offer competitive prices. With us working on your systems, you can rest easy knowing that the leading Fairfax, VA HVAC experts are at your side.

Call us today in Virginia at 703.457.8676 or in Maryland at 301.250.1899 to request your HVAC service.

Don't Just Take Our Word for It!

See What Our Customers Have to Say About Our Service
  • “Really appreciate your crew. They answered all my questions and concerns, and the work appears to be impeccable!”

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

    Scott H.
  • “I am thankful for Paul’s service and HIGHLY RECOMMEND Donmar Company to anyone with an HVAC issue!”

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

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

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

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

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

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

    Samia K.

Creating Happy Customers Since 1990

Why We Are the #1 Trusted HVAC Company in Northern Virginia
  • Emergency HVAC Services 7 Days a Week

  • NATE Certified Technicians

  • Offering Free Estimates On Replacements

  • Flexible Financing Options

  • Quality Service With Honest Values

  • Affordable Service Management Agreements

  • Over 25 Years of HVAC Experience

  • We Are On Time, Every Time