Heating and Air Conditioning, Water Heaters, Plumbing
About us
14 employees. No subs. Charges a flat rate. No travel charges. Diagnostic fee applies to repair. Additional hours - Sun for emergency service. May contact through email. Charges a flat rate.
Business highlights
36 years of trusted experience
Services we offer
Residential Heating & Air Conditioning, Hybrid Systems, Geothermal Systems, Air Cleaners, Air Purifiers, Water Heaters, Humidifiers Repair, & Replacement.
Description of Work: Annual service for 2 units in my home. Added 2 pounds of freon.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$885
Terry C.
05/2017
5.0
heating & air conditioning/hvac
+ -1 more
,,
Description of Work: ..
Rating Category
Rating out of 5
Yes, I recommend this pro
Terry C.
05/2017
5.0
heating & air conditioning/hvac
+ -1 more
They were professional.
Description of Work: They installed my unit.
Rating Category
Rating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Ralph S.
04/2017
5.0
heating & air conditioning/hvac
+ -1 more
.
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
Nate R.
08/2016
5.0
heating & air conditioning/hvac
+ -1 more
unknown
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
Margaret Y.
08/2016
5.0
heating & air conditioning/hvac
+ -1 more
.
Description of Work: Donmar installed an entirely new HVAC system with dual duct work for us.
Rating Category
Rating out of 5
Yes, I recommend this pro
Randy B.
06/2016
5.0
heating & air conditioning/hvac
+ -1 more
unknown
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
Diane S.
06/2016
5.0
heating & air conditioning/hvac
+ -1 more
unknown
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
Michael S.
06/2016
5.0
heating & air conditioning/hvac
+ -1 more
unknown
Description of Work: .
Rating Category
Rating out of 5
Yes, I recommend this pro
william H.
06/2016
4.0
heating & air conditioning/hvac, plumbing
+ 0 more
unknown
Description of Work: DonMar came in an repaired my chronically broken upstairs unit. This time it was a clogged pan valve with safety that cut off power to the unit in order to prevent overflow. In general, DonMar always does a good job but I truly wish they would stop selling Carrier which is not a super reliable brand. My Carrier unit is about 5 years old and has issues every summer but somehow DonMar keeps the thing running with little to no support from Carrier.
Rating Category
Rating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$250
demarie J.
02/2016
5.0
heating & air conditioning/hvac
+ -1 more
unknown
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
$400
Al K.
07/2009
5.0
heating & air conditioning/hvac
+ -1 more
Donmar's great. They delivered a very reasonable quote for the top of the line Trane system, and won the bid out of 5 other vendors. They showed up on time and was very professional. The installation went smoothly and haven't had a problem with the system at all.
Description of Work: Fully replaced the upstairs AC system in a dual zone townhome.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$7,500
John H.
05/2009
5.0
heating & air conditioning/hvac
+ -1 more
Donmar showed up and assessed the job and stayed until it was complete. Entire job took about 9 hours with three men. Donmar called to let me know that they would be later than then 7:30 AM start time, but showed up at the rescheduled time.
Description of Work: Replaced entire HVAC system w/top of the line Carrier system 21 seer unit, humidifier, Infinity control system, and variable speed fan. Donmar also moved the location of the condenser to bring it current to code.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$9,300
NANCY T.
03/2009
5.0
heating & air conditioning/hvac
+ -1 more
They were punctual, professional and responsive. I have recommended them to several others.
Description of Work: They replaced my entire system in my home.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$10,000
Steven R.
11/2008
4.0
heating & air conditioning/hvac
+ -1 more
Everything went well. I would certainly consider them in the future.
Description of Work: I called them for an estimate for my furnace.
Rating Category
Rating out of 5
Yes, I recommend this pro
John S.
11/2008
5.0
heating & air conditioning/hvac
+ -1 more
Everything went very well. Their prices were a little high, but I would consider them again in the future.
Description of Work: They repaired a freon leak and fixed a failed capacitor.
Rating Category
Rating out of 5
quality
5.0
value
3.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$450
Response from Donmar Co Inc
ACTUAL REPAIR PRICE WAS $248. CUSTOMER ALSO PURCHASED AN ANNUAL MAINTENANCE PLAN WHICH BROUGHT INVOICE TOTAL UP TO $487.40.
Eveleth B.
11/2008
4.0
heating & air conditioning/hvac
+ -1 more
We called and the estimate was fine. We ended up going with another company that had a better price for what we needed, but we would consider using them in the future.
Description of Work: We contacted them for an estimate.
Rating Category
Rating out of 5
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
JAN A.
11/2008
4.0
heating & air conditioning/hvac
+ -1 more
I believe I was taken advantage of by this company. When checking the unit that was working but not working correctly, the worker drained all of the freon out of the lines, and we could not run the air conditioner because of this. We decided to go with another company, as the price they quoted was extremely high. I found them to be lacking in integrity, and by draining the freon, we were forced to make a repair we otherwise could have waited on. UPDATE: The owner called; concerned we were not satisfied. He generously offered and we agreed upon a partial refund. The owner was very professional, and I told him I will consider using his company for services in the future.
Description of Work: They came out and drained a clogged line in our air conditioning unit. They checked two units, one of which had a damaged valve but was working.
Rating Category
Rating out of 5
quality
3.0
value
3.0
professionalism
4.0
responsiveness
4.0
punctuality
3.0
Response from Donmar Co Inc
CUSTOMER NEVER CALLED TO INDICATE ANY DISSATISFACTION WITH THE SERVICE. WE DID NOT CREATE THE PROBLEM HERE, ONLY REPORTED IT. ANY CUSTOMER THAT IS NOT 100% SATISFIED WITH OUR SERVICE WILL GET A FULL REFUND, WE JUST NEED TO KNOW ABOUT IT.
Anne O.
11/2008
5.0
heating & air conditioning/hvac
+ -1 more
We were very happy with them. We have used them several times, and we have never had any problems with their service.
Description of Work: They serviced our furnace.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
Sue B.
05/2008
5.0
heating & air conditioning/hvac
+ -1 more
Prior to lengthy trip out of town, I heard water drip in the closet that houses furnace/blower for AC unit. Donmar technician arrived at appointed time (3 hour window), determined AC needed coolant and heating unit may soon need a pump replaced. Turned off valves to pump since heat isn't needed in summer, putting off pump repair or replacement to later in the year. Honored "coupon" when I mentioned Angie's list in phone call to set up appointment even though I had no printed coupon.
Description of Work: Technician checked the furnace in the closet for source of water leak.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$233
Jo T.
05/2008
4.0
heating & air conditioning/hvac
+ -1 more
The service manager (Mark) was on time and very professional in describing the proposal and service/products outlined and recommended. The installation crew was on time and very conscientious. The crew chief kept me informed of their progress and any issues that required my attention and/or input. The only issue we had was that they forgot to turn the gas (heat) back on after installation. They needed to come out an additional time to rectify the situation.
Description of Work: Install new air conditioner condenser and evaporator coil, replace base pad, supply duct transition, remove/disconnect old condenser and coil assembly.
Rating Category
Rating out of 5
quality
4.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$4,350
John S.
11/2007
5.0
heating & air conditioning/hvac
+ -1 more
The service tech was on time and appeared to be competent.
Description of Work: Yearly maintenance service on furnace and humidifier.
Rating Category
Rating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$128
Robert T.
07/2007
5.0
heating & air conditioning/hvac
+ -1 more
Even though it was the summer, the work was completed two days after, I called it in. The installers were professional, neat, courteous and hard working, since the project took 7 hours to complete in a very hot attic. They left everything in perfect working order.
Description of Work: Replace an old heat pump, which consists of going into the attic and removing & replacing an air handler, then replacing the outside heat pump unit, testing and balancing, putting in a new thermostat and making sure all items run properly.
Rating Category
Rating out of 5
quality
5.0
value
4.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Yes, I recommend this pro
$6,500
Mark K.
06/2007
5.0
heating & air conditioning/hvac
+ -1 more
Beautifully done. I was given a 3 hour window on a date that I chose. The tech called to say when he would arrive and was right on time. He diagnosed the problem within moments, gave me an estimate and fixed the problem in a very short amount of time. He then checked both the indoor and outdoor units to make sure everything else was working properly, noticing that the indoor is 25 years old and the outdoor was 6 years old and the cheapest one I could buy at the time. Instead of pushing me to buy a complete new system right away, he said we could keep it until something truly breaks down and can't reasonably be repaired. In all, the tech was at my house for less than 30 minutes and charged exactly what was quoted.
Description of Work: My A/C was not cooling the house and the outdoor unit didn't appear to be functioning properly. Turns out the outdoor unit needed a new capacitor.
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Heating and Air Conditioning,
Water Heaters,
Plumbing
FAQ
Donmar Co Inc is currently rated 4.7 overall out of 5.
Sunday: 9:00 AM - 5:00 PM
Monday: 7:00 AM - 10:00 PM
Tuesday: 7:00 AM - 10:00 PM
Wednesday: 7:00 AM - 10:00 PM
Thursday: 7:00 AM - 10:00 PM
Friday: 7:00 AM - 10:00 PM
Saturday: 7:00 AM - 5:00 PM
Donmar Co Inc accepts the following forms of payment: American Express,Check,Discover,Financing Available,MasterCard,PayPal,Visa
Yes, Donmar Co Inc offers free project estimates.
Yes, Donmar Co Inc offers eco-friendly accreditations.
Yes, Donmar Co Inc offers a 10% senior discount.
No, Donmar Co Inc does not offer emergency services.
Yes, Donmar Co Inc offers warranties.
Donmar Co Inc offers the following services: Residential Heating & Air Conditioning, Hybrid Systems, Geothermal Systems, Air Cleaners, Air Purifiers, Water Heaters, Humidifiers Repair, & Replacement.
Duct cleaning.
Contact information
22821 Silverbrook Center Dr Ste 130, Sterling, VA 20166