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

Sterling, VA HVAC Sales & Servicing

Getting the Job Done Right to Your Complete Satisfaction

At Donmar Heating & Cooling, we are the top name in HVAC sales and servicing in the Sterling, VA area. As one of the top HVAC contractors, we are committed to providing high quality heating and cooling services to our communities, and have been doing so for more than 25 years. From installation on your system to major repairs to minor maintenance, we carry all the tools and skill to get the job done right the first time to your complete satisfaction.

Our Sterling HVAC team can provide installation, repair, and maintenance service on all of the following products:

A Customer-Centered Focus

Customers are at the heart of everything we do, and all of our employees are focused on a customer-centered approach that is professional and courteous. Our technicians are NATE-certified, licensed, and trained to work effectively on all HVAC systems. We ensure that each project is handled with care through prompt dispatch, thorough inspections, and timely service.

Though each technician is certified and licensed, we also ensure that all of them are duly trained on the new systems and latest updates to keep abreast of the changing technology.

Contact Us Today for More Information on Our Services!

Let us help create the highly functioning and efficient HVAC system that you need in your Sterling, VA home. Our technicians can install the highest-quality products and make effective repairs with the in-depth professional knowledge needed to make sure that this goal becomes a reality.

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

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

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

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

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

    Natalie M.

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