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

Chantilly, VA HVAC Repair, Maintenance, & Installation

Quality Service for Any Season

If you have been looking for quality service or repair on your HVAC unit in the Chantilly, VA area, you are in the right place! At Donmar Heating & Cooling, we have more than two decades of experience installing, repairing, and maintaining heating and air conditioning systems.

Our services ensure that your varied heating and cooling requirements are optimized for the different seasons. We work to make sure that you and your family is warm in the winters, while staying in pleasantly cool homes during the sunny summer days.

Some of the HVAC services that we offer to customers in Chantilly, VA include:

  • Replacement, installation and maintenance of heaters and furnaces
  • Air conditioner repair and installation
  • Calculating the load requirements for new installations
  • Humidifiers, heat pumps and air purifiers repair and installation
  • Preventive maintenance

Save Energy & Maximize Efficiency!

To enhance and optimize the efficiency of your heating and cooling systems yet reduce your utility bills, our technicians can calibrate your air conditioning and heating units to reduce power consumption but increase the capacity of the systems. We understand that no two systems are the same, and that is why we customize to fit your requirements.

Additionally, when you need a new HVAC system installed, we don’t look at it as making a sale, but rather ensure you get the right size and capacity system that can improve energy efficiency while meeting your home’s unique heating and cooling needs. We take you step by step through the entire process of accurately calculating the consumption and then selecting the best HVAC system that fits your budget, while considering the consumption requirement. After that, our technicians will check the system, calibrate it to maximize efficiency, and reduce the energy consumption. Finally, we will offer you tips for maintaining it well and ensuring that it lasts for years to come.

An Effective & Low-Priced Annual Maintenance Program

Our low-priced annual maintenance program is aimed to encourage you to sign up and enjoy repair-free heating and cooling throughout the year. We offer this program for a price that suits all budgets and requirements. Our technicians complete all preventive maintenance services twice a year, including once in the fall and then again in spring. With this program, you can take away the hassle of repairs and replacements while enjoying long-lasting indoor comfort.

Authorized Carrier Factory Dealer With NATE-Certified Technicians

As an authorized Carrier Factory dealer, we have constantly met high brand loyalty and quality requirements, while providing stellar customer service. With experience working on all types of Carrier products, we know the level of service that your Chantilly, VA HVAC units need. In addition to this, our dynamic technicians are all NATE-certified. This is the highest accreditation, and a prestigious honor, given to experts in the HVAC industry.

We use our skills, as well as the best tools and equipment in the industry, to ensure that your home has clean, quality indoor air, and optimized temperatures during all seasons!

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

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

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

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

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

    Samia K.
  • “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!”

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

    Jeffrey N.
  • “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