Furnace Installation
By Donmar Heating and Cooling
Donmar Heating and Cooling offers professional furnace installation near Sterling, VA. Our skilled technicians assess your needs and install high-quality Carrier systems designed for comfort and energy efficiency all winter long. We take pride in precise installations, ensuring your system operates smoothly and reliably for years to come. Whether you're replacing an outdated unit or installing a new furnace system, rely on us for reliable service and customized solutions to keep you cozy all winter long.
What Does The Process Look Like?

Book an Appointment
Get started by booking a furnace installation appointment with your local Carrier by giving them a call or scheduling an appointment online.

Evaluation & Estimate
A professional technician will evaluate your home’s layout and heating and cooling requirements to recommend the right furnace for you. You’ll receive an estimate that outlines equipment options and prices, ensuring a solution that meets your comfort and budget needs.

Perform Installation
A certified technician will install your new furnace system, ensuring it’s set up for optimal efficiency and performance. From equipment placement to system calibration, they’ll handle every detail of your installation so you can enjoy reliable comfort throughout the year.
Other Services We Provide

Furnace Repair & Service
We provide professional furnace repair and service to keep your heating system operating at peak performance. Our certified technicians can identify problems, perform necessary repairs, and fine-tune your system to keep you comfortable all year long.

HVAC Maintenance
We provide annual HVAC maintenance to keep your heating and cooling system running efficiently year-round. Regular tune-ups help prevent breakdowns, can improve energy efficiency, and extend the lifespan of your heating and cooling equipment.

HVAC System Installation
Let us ensure reliable comfort and energy efficiency for your home with professional HVAC system installation. We offer high-quality Carrier equipment, precise HVAC installation, and customized solutions to meet your heating and cooling needs.
Trusted HVAC Professional in Sterling
Best in Northern Virginia
May 15, 2026
Better heatpump brand and model for a lower price and better service of 8 dealer quotes received. DonMar and Carrier has it all!
Curtis
Expertise (5)
Solve Problems (5)
Service (5)
New Carrier Infinity furnace
May 04, 2026
The team that Donmar sent led by Carlos did a very professional job installing my new furnace. Prompt, clean, thorough and professional. I would highly recommend Donmar in the future.
Bruce
Expertise (5)
Solve Problems (5)
Service (5)
New AC Installation
May 01, 2026
Installation went smoothly, everything looks good, installation team is knowledgeable and courteous. The house after installation was left very clean.
Elena
Expertise (5)
Solve Problems (5)
Service (5)
Yes, DonMar Heating & Cooling
November 18, 2025
Great experience and staff have been with the company for multiple years, are experts, informative, courteous and cleaned-up well, when install was completed.
Chuck
Expertise (5)
Solve Problems (5)
Service (5)
Excellent Service
October 21, 2025
Great experience
Wendell
Expertise (5)
Solve Problems (5)
Service (5)
All Around Excellence
October 13, 2025
Excellent product guidance and installation services at a fair price.
Robert
Expertise (5)
Solve Problems (5)
Service (5)
Outstanding Service!
September 24, 2025
Michael from DONMAR arrived promptly as scheduled to determine the scope of the work and provided a very competitive estimate for the project. Manuel, Brian and Edgar from DONMAR performed the removal of the old system and installation of the new system. They provided OUTSTANDING customer service throughout the project. Specifically, they arrived promptly and briefed me on the plan for the project. They worked diligently during the entire project, kept me well informed of the status, and trained me on the use of the new equipment. They presented a PROFESSIONAL demeanor at all times throughout the job, and the completed installation is OUTSTANDING! I could not be more pleased with the team from DONMAR. Thanks for the OUTSTANDING service!!
Joseph
Expertise (5)
Solve Problems (5)
Service (5)
Overall, a great experience from their sales to the installation team!
August 15, 2025
Edgar and his team are extremely knowledgeable of the Carrier HVAC systems and installed the new system in a very timely matter.
Jerry
Expertise (5)
Solve Problems (5)
Service (5)
Excellent product installation
May 21, 2025
I am happy with the service provided by this dealer
Laurina
Expertise (5)
Solve Problems (5)
Service (5)
Donmar
May 06, 2025
We have been working with Donmar for over 30 yrs and very happy with them. We can always get an appointment in a reasonable time frame.
Cinde
Expertise (5)
Solve Problems (5)
Service (5)
Excellent Customer Service!
May 02, 2025
We have used Donmar to install new AC, HVAC, and a tankless water heater in our home. They have also conducted emergency plumbing repairs, etc. They are always professional, on time, and have reasonable pricing. We highly recommend them!
Reynaldo
Expertise (5)
Solve Problems (5)
Service (5)
Replaced old hvac in one day
March 27, 2025
I have used Donmar for many years anf am very pleased with their service.
Tauheed
Expertise (5)
Solve Problems (5)
Service (5)
Exceptional service.
June 09, 2024
This company provides exceptional service . Very impressed with their professionalism, expertise, and attention to detail. Great customer service. Their pricing was also reasonable. Highly recommend!
Anne
Expertise (5)
Service (5)
Solve Problems (5)
Wonderful experience
April 12, 2024
When the estimator saw that I had no heat he contacted someone in the office who said a team could come out the next morning. They did exactly that, installing a new heat pump/heater/AC controlled with a nice smart Ecobee thermostat which I can control through my Amazon Alexa system, plus they also installed a new water heater as it was original with the house (40 yrs old). They did some things I hadn't seen before like using sheet metal to create 'pans' under the HVAC and water heater in case there's ever a water leak problem in the future. I also needed them to fix a problem I had with my A/C water discharging right onto my outside wall. They figured out a way to do that without cutting open my finished ceiling which I really appreciated. There are some top level cabinets in my basement which give access above the ceiling and they threaded and secured copper pipe through those, made a 90 degree angle to then thread the pipe to the outside, far enough past my back wall that I don't need to worry about water and mold problems anymore. The only issue I had was that they accidentally installed the enhanced Ecobee thermostat instead of the premium model. I left a message on Saturday and got a call back within an hour (wasn't even an emergency), and they've since come back to my house and replaced the thermostat with the better model. All in all I've been very happy with DonMar and wouldn't hesitate to recommend them to others.
Ron
Expertise (5)
Service (5)
Solve Problems (5)
wonderful
April 11, 2024
wonderful
Demetra
Expertise (5)
Service (5)
Solve Problems (5)
Superior Dealer
March 27, 2024
Experienced technicians who go beyond contractual obligations to satisfy customers with quality workmanship. Donmar is our partner in all our future HVAC sales and service
Rao
Expertise (5)
Service (5)
Solve Problems (5)
Highly recommend
March 01, 2024
Great service, detail oriented, long time customer. I would definitely recommend to anyone!
Elena
Expertise (5)
Service (5)
Solve Problems (5)
Excellent service
March 01, 2024
Exceptional installation team.
Dennis
Expertise (5)
Service (5)
Solve Problems (5)
Probably
January 31, 2024
New Heating \& Cooling installation should have come with a Thermostat,But I replaced it at my Cost of $195.1\-30\-24.
Shaheen
Expertise (5)
Service (4)
Excellent
January 11, 2024
Very professional and helpful
Khalil
Expertise (5)
Service (5)
Solve Problems (5)
Urgent Install Exceeded All Expectations;
December 16, 2023
Lifesaver in the dead of winter to install a new unit the next day.
Patrick
Expertise (5)
Service (5)
Solve Problems (5)
Great Experience
December 09, 2023
My experience with Donmar Heating and Cooling exceeded my expectations. The technician, Edgar was very experienced, professional, and knowledgeable. Edgar was very polite and encouraged my feedback as we discussed the particulars of the install and how best to accomplish same. Donmar assisted with moving heavy objects when necessary to facilitate the installation. Donmar was very respectful of my property and cleaned up very thoroughly when the job was completed. Donmar arrived on time on the scheduled date and completed the work timely. The price was fair, and I was more than satisfied with the process from beginning to end. I have used Donmar in the past and will continue to use them going forward. I have in the past and will continue to recommend Donmar to friends and family.
David
Expertise (5)
Service (5)
Solve Problems (5)
professional and knowledgeable service
November 27, 2023
Very personable and provided excellent explanations
Richard
Expertise (5)
Service (5)
Solve Problems (5)
Professional
November 23, 2023
Fast and Professional!
Ravi
Expertise (5)
Service (5)
Solve Problems (5)
Terrific all around good old-fashioned service often lacking in general in modern times
November 08, 2023
Prompt in responding to referral inquiry. Fair estimates regarding the scope of needed service. Timely in scheduling estimate and follow\-up Installation team arrived well during the 2\-hour window; courteous, professional, friendly, informative, respectful of the property inside and outside, and dedicated to completing the work well. Donmar, from the initial interaction remained aboveboard throughout the process.
Yvette
Expertise (5)
Service (5)
Solve Problems (5)
Excellent instillation of a quality product
August 12, 2023
I received bids from four companies and chose Donmar because they provided the best balance of price and service. I was very pleased with the instillation as Bryan and Carlos took obvious pride in their work and included extra electrical work that I was not expecting. The heat pump has worked flawlessly and runs much quieter than the previous unit.
Davi
Expertise (5)
Service (5)
Solve Problems (5)
Donmar Heating and Cooling is a top notch company. Everyone I worked with was professional, knowledgeable and thorough. They walked me through the entire process, communicated clearly and timely, and answered all of my questions.
March 29, 2023
The people at Donmar know what they are doing! Totally professional and easy to work with.
Sharon
Expertise (5)
Service (5)
Solve Problems (5)
Recent service by Donmar Heating and Cooling
March 22, 2023
Professional service
Andy
Expertise (4)
Service (4)
Solve Problems (4)
Easy install and quality product
February 27, 2023
Donmar provided the highest quality unit for the lowest price when my 17 year old system died. No issues with install, scheduling was on my time and they were not late. No issues with the system so far so I strongly recommend them.
Michael
Expertise (4)
Service (4)
Solve Problems (4)
Professional and Dependable HVAC Company
January 19, 2023
I have used DONMAR Heating and Cooling for 8 years. They have always been responsive to our smallest and biggest needs. Their services are First Class, their advice is accurate and very helpful, and their equipment installations at efficient, quick, clean and right on budget/estimate.Having a company like DONMAR available for routine and emergency needs provides a great sense of security.
Mike
Expertise (5)
Service (2)
Solve Problems (5)
Excellent service!
November 03, 2022
Donmar provides excellent service and thehave highest expertise in Northern Virginia. They also clean up after themselves and wear shoe covers in the house.
Annette
Expertise (5)
Service (5)
Solve Problems (5)
Recommend Donmar Heating and Cooling
October 18, 2022
Prompt, courteous, and professional.
Earl
Expertise (5)
Service (5)
Solve Problems (5)
Almost perfect
October 18, 2022
Installed new furnace, didn't connect A/C correctly. Called two days later and they came out and fixed wiring connections.
Anthony
Expertise (4)
Service (5)
Solve Problems (5)
Fantastic experience
October 16, 2022
Donmar and all the technicians were so completely helpful! They were great at diagnosing the problem and the installation of then new system was very smooth.
Kimberly
Expertise (5)
Service (5)
Solve Problems (5)
Above and Beyond
June 21, 2022
Our technician was super cordial and knowledgable
Curtis
Expertise (5)
Service (5)
Solve Problems (5)
Super Job Done
June 18, 2022
I am so glad that we found and worked with this company. They made the job look easy. They solved the problem where another company said impossible. We cannot say thank you enough.
Jing
Expertise (5)
Service (5)
Solve Problems (5)
Excellent Experience
April 04, 2022
In addition to excellent technical expertise, they are honest. Initially, Carrier sent a damaged product and Donmar told us it was damaged and they returned it and ordered another one. They are reliable, courteous, and respectful of the customers property. They provide floor coverings and wear foot coverings to protect your home).
Annette
Expertise (5)
Service (5)
Solve Problems (5)
Simply the best.
March 09, 2022
The installers went above and beyond the call of duty. Just excellent in every regard.
Barry
Expertise (5)
Service (5)
Solve Problems (5)
REVIEW FOR DONMAR INSTALLATION OF HVAC (on 13 Dec 2021) at 1028 N. Liberty Str., Arlington, Va. 22205
December 15, 2021
100% Professional Service.
Kathy
Expertise (5)
Service (5)
Solve Problems (5)
Great job installing HVAC system
August 13, 2021
Donmar Company did a great job installing a new HVAC system in my home. They were quick and very professional. I highly recommend their service.
Chris
Expertise (5)
Service (5)
Solve Problems (5)
New basement Ac and Gas furnace
June 18, 2021
Donmar team did a great job installing a new AC and Gas furnace. Edgar took time to carefully explain new thermostat functions. Very knowledgeable staff.
Phillip
Expertise (5)
Service (5)
Solve Problems (5)
Donmar Heating and Cooling - Outstanding Installation Work
June 17, 2021
Installation of single\-family home system. Technicians were through, professional, and paid attention to detail; all my questions were answered. Could not be more satisfied.
Charles
Expertise (5)
Service (5)
Solve Problems (5)
New install
June 17, 2021
Excellent
Susan
Expertise (5)
Service (5)
Solve Problems (5)
Great service
April 27, 2021
Installation went without any problems And according to schedule We received detailed explanation
Galina
Expertise (5)
Service (5)
Solve Problems (5)
Great Service
April 22, 2021
High quality service. The new HVAC install went great. Great communication and very responsive to customer needs
Jonathan
Expertise (5)
Service (5)
Solve Problems (5)
A+
April 08, 2021
Edgar was great. Very polite, professional, and explained everything perfectly. Highly recommend.
Adam
Expertise (5)
Service (5)
Solve Problems (5)
Fast and professional
February 11, 2021
Donmar was able to remove my old system and install the new system within one day, even though the location and size of the old system were difficult to manage. They were very professional and did not try to up\-sell me on unnecessary add\-ons
Michael
Expertise (5)
Service (5)
Solve Problems (5)
Donmar did a great job, on short notice, at a fair price.
January 26, 2021
great Tech's \- knowledgable and helpful!
Tom
Expertise (5)
Service (5)
Solve Problems (5)
Great Service
December 21, 2020
Great, reliable company! They came and replaced an air handler the next day with excellent service! Careful , clean, considerate of owner's property. I highly recommended and I will never call another A/C company again!
Elena
Expertise (5)
Service (5)
Solve Problems (5)
Wonderful Experience
December 14, 2020
Great service. Edgar came to my house to install the new system. He was wonderful: courteous and explained everything, answered all of our questions before, during and after the installation.
Martin
Expertise (5)
Service (5)
Solve Problems (5)
Great Service
November 24, 2020
Excellent service! I highly recommend this company
Chang
Expertise (5)
Service (5)
Solve Problems (5)
DON MAR COMPANY
November 24, 2020
Don Mar has always responded quickly to my service issues. The tech, Javier, who installed my Carrier furnace and air conditioner was great! I have confidence in him and he's always able to resolve/solve a problem. I am very pleased with this HVAC company.
Patricia
Expertise (5)
Service (5)
Solve Problems (5)
Donmar Heating and Carrier: Good Experiences.
October 05, 2020
We have been dealing with Donmar in two homes over the past 15 years and have always had good experiences with their professional staff. This installation was no exception and neither was the one several years ago when we had to replace our attic heat exchanger. Both were change of equipment to Carrier and we couldn't be more pleased.
George
Expertise (5)
Service (5)
Solve Problems (5)
Installation of new heat pump for AC.
October 05, 2020
Professional and Efficient!
Robin
Expertise (5)
Service (5)
Solve Problems (5)
HVAC Replacement
October 04, 2020
The technicians arrived on time and started installation immediately. They finished around 4PM without any issues. They are absolutely professionals.
Ramoncito
Expertise (5)
Service (5)
Solve Problems (5)
Very Professional
August 25, 2020
They are very professional. Diagnosed the problem, presented options and then tackled a tough job very professionally. They covered the entry way, stairs and floor with tarps to make sure there would be no damage in removing the old unit.
George
Expertise (5)
Service (5)
Solve Problems (5)
Replace Older HVAC System
August 22, 2020
I have been a customer of Donmar for 1.5 years (mostly service). They have been excellent. Now I have had them replace my entire system. Again excellent work.
Robert
Expertise (5)
Service (5)
Solve Problems (5)
Outstanding Service!
July 23, 2020
Great service by Donmar. Completely satisfied. Professional, competent, cordial. Great experience. Very pleased.
Brian
Great
July 20, 2020
Highly Recommend
Scott
Expertise (5)
Service (5)
Solve Problems (5)
Excellent service from Donmar Heating and Cooling
July 06, 2020
Great experience all around with staff and the service they provided from initial visit with estimate, follow\-up with email and phone calls, and installation of both new A/C and gas furnace. Will highly recommend this company to everyone I know.
Candy
Expertise (5)
Service (5)
Solve Problems (5)
DONMAR
June 24, 2020
Needed a new unit "now" and they were the only dealer that could respond in a very timely manner. Washington Checkbook had their 4\-star listing.
Alfred
Expertise (5)
Service (5)
Great Experiece With Donmar
June 23, 2020
Very professional. On time. Worked well on a very hot day. Delivered as promised. Thanks.
Jack
Expertise (5)
Service (5)
Solve Problems (5)
Carrier System Installation
June 08, 2020
Extremely knowledgeable, considerate, and professional. We experienced no problems whatsoever and the installation was seamlessly performed. Highly recommended.
Kevin
Expertise (5)
Service (5)
Solve Problems (5)
HVAC Replacement
June 07, 2020
Fair pricing, Ease of scheduling, Technicians were on time, respectful of COVID precautions and did an outstanding job. Follow\-up questions were addressed courteously and promptly. We will use Donmar for our future heating and cooling needs.
David
Expertise (5)
Service (5)
Solve Problems (5)
Great service
March 30, 2020
Fast, good and reliable service.
Darlene
Expertise (5)
Service (5)
Solve Problems (5)
Happy customer... great HVAC system... nicest installers/technicians
February 28, 2020
I was sick with worry about the expense and the installation was complicated due to this being a condo and a very old building with tricky plumbing involving domestic water (Triple State) and mechanical water (Noyes NAC). But the Donmar folks were skilled at working with these other folks. Edgar in particular is outstanding... Such a nice person and made me feel confident the job would be done correctly.
Lisa
Expertise (5)
Service (5)
Solve Problems (5)
Very satisfied
February 07, 2020
Donmar technicians were on time, very courteous, knew their stuff, and cleaned up after the job.
Bob
Expertise (5)
Service (5)
Solve Problems (5)
Heat & Cooling
November 21, 2019
Awesome company, service and staff
Joseph
Expertise (5)
Service (5)
Solve Problems (5)
Install
November 15, 2019
Consummate professionals! Will continue to recommend their services. Experts in their field of industry. Thank you!
Sophia
Expertise (5)
Service (5)
Solve Problems (5)
Fast, Professional, and Friendly
August 15, 2019
The crew installed 2 units in less than 6 hours. All were very knowledgeable and friendly. Couldn't be happier.
Joe
Expertise (5)
Service (5)
Solve Problems (5)
Professional & Reliable Company
August 02, 2019
Prompt service and excellent care! Provided us with options and allowed us the opportunity to make an educated decision! Will continue to be a customer for many years to come!
Sophia
Expertise (5)
Service (5)
Solve Problems (5)
Donmar plumbing
July 28, 2019
This is the second home at which Donmar plumbing has installed a Carrier system. This job was complex and during a heat wave. Donmar plumbing was incredible and conducted a great installation.
Jonathan
Expertise (5)
Service (5)
Solve Problems (5)
DonMar Company Heating & Cooling
July 25, 2019
Great experience overall with DonMar Company Heating \& Cooling
Jeff
Expertise (5)
Service (5)
Solve Problems (5)
quick and professional
July 20, 2019
very quick turn around. installers were very professional and did a wonderful job.
G
Refreshing that customer service still exists!
July 06, 2019
Javier and Rob were punctual, respectful of the house, and very thorough. It was impressive they never seemed irritated by my endless of list of questions and tendency to follow them around trying to learn something.
Krystal
Expertise (5)
Service (5)
Solve Problems (5)
Excellent installation
June 01, 2019
Nicely done
Clifford
Expertise (5)
Service (5)
Solve Problems (5)
Excellent service
May 03, 2019
Technician was very professional and polite.
Dennis
Expertise (5)
Service (5)
Solve Problems (5)
HVAC techs installed new dual-zone Carrier systems, these guys are great!
April 30, 2019
Javier (Lead), Robert and Carlos came to our place around 8am to install 2 Carrier Comfort 14 SEER\-rated HVAC systems along along air handler/coil system replacement, very professional and courteous, all finished by 4pm. They were very transparent in what they were doing and gave me the briefing for the work done, certain things to keep up with, includes a 1 yr service contract and they filled out the registration paperwork and submitted for the warranty coverage. I definitely recommend them!
Nick
Expertise (5)
Service (5)
Solve Problems (5)
Excellent
April 27, 2019
The installer was very polite and knowledgeable
Sherry
Expertise (5)
Service (5)
Solve Problems (5)
Organized and Efficient!
April 26, 2019
I?m so happy we chose to get our HVAC system changed with Donmar. They made it easy by answering questions in a way I could understand and explaining the process. My technician Javier was incredibly professional, on time and took time to answer more questions we had about the system. I?m very impressed with Donmar and they have gained me as a loyal costumer.
Eliexer
Expertise (5)
Service (5)
Solve Problems (5)
Donmar, fair and professional
April 24, 2019
Have used Donmar for more than 26 years!
Rodrick
Expertise (5)
Service (5)
Solve Problems (5)
Job well done
February 12, 2019
Technition was very polite and experienced.
David
Expertise (5)
Service (5)
Solve Problems (5)
