Virginia & Maryland Heating, Air Conditioning & Plumbing
Why Choose Donmar? Over 30 Years of Experience and Quality!

Why Hire Donmar Heating, Cooling & Plumbing?

Providing High-Quality Heating, Cooling, & Plumbing Services

Donmar Company was started with three two major goals in mind: to solve client’s problems and improve their indoor comfort. We are proud of the business that we built and we always strive to deliver consistent quality with a personal touch.

The Experience to Help Your Home

We’ve been in the HVAC and plumbing business for 30 years and counting. This experience combined with progressive training on the latest products ensures that our HVAC experts and plumbers are delivering a quality product and service each and every time.

Our experience includes:

  • Assisting over 19,500 clients
  • Writing over 100,000 invoices
  • Performing more than 11,000 new installations

Donmar Company: A Cut Above in the HVAC & Plumbing Industries

We love what we do and it shows in our work. We have little turnover and you will usually see the same technicians year after year keeping your equipment in top shape. Our lead installation foreman has been with us 17 years now. We are a Carrier Factory Authorized dealer and have won the Carrier Presidential award for four years in a row, in both 2014, 2015, 2016 and 2017.

Our goal is to solve your needs with the least amount of fuss as possible:

  • Are always on time
  • Offer all options
  • Deliver quickly so you can get back to your life

Energy Solution to Fit Your Budget

Not every family has several thousand dollars in emergency funds to cover the cost of a replacement HVAC system or to replace burst pipes, so we have special 60-month financing available with approved credit to help spread out the cost. We can offer instant utility rebates rather than having you file for yourself. Service calls are free with repair. Our licensed, insured, and NATE-certified technicians also offer free replacement estimates, and affordable maintenance agreements. We are BBB Accredited business so you can trust that you are getting the system you need at a price you can afford.

Call our HVAC professionals and plumbers today at (703) 457-8676 to schedule your service today.

Don't Just Take Our Word for It!

See What Our Customers Have to Say About Our Service
  • “It is so hard to find a trustworthy AC repair company and I think i have finally found it.”

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

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

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

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

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

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

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

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

    Jeffrey N.

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 with Approved Credit
  5. Quality Service With Honest Values
  6. Affordable Service Management Agreements
  7. Over 30 Years of HVAC Experience
  8. We Are On Time, Every Time
Contact Us Now
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