Duvall's Plumbing Heating & Air Conditioning

Name: Duvall's Plumbing Heating & Air Conditioning
Address: 8103-B Centreville Rd, Manassas, VA, 20111, US
Telephone: 703-368-8746
Price range: $
Rating: 4.5

8103-B Centreville Rd
Manassas, VA 20111 703-368-8746

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Price

157 ratings
92% gave a "superior" overall rating
- Prices 18% lower than average
Compare 190 nearby air-conditioning & heating contractors
"We have used Duvall services several times for plumbing repair as well as heating and air conditioning..."
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Prices for Duvall's Plumbing Heating & Air Conditioning

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Consumer Ratings for Duvall's Plumbing Heating & Air Conditioning — 157 Ratings

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Equipment company services/installs:

Humidifiers
Central air conditioners
Electric furnaces
Gas furnaces
Hot water heating systems

Hot water systems pipes & radiators
Heat pumps
Window air-conditioning units
Attic fans

Consumer Comments for Duvall's Plumbing Heating & Air Conditioning

Consumer from DUMFRIES, VA
Aug 22, 2025

We have used Duvall services several times for plumbing repair as well as heating and air conditioning issues. On each visit their technicians did a good job on repairs and took the time to answer questions and fully explain things to us which was very helpful

Consumer from FAIRFAX, VA
Jul 27, 2025

Do not recommend due to lack of quality, accountability, and trust. After a couple of jobs performed in an acceptable manner, I called them for doing maintenance on two HVAC units. Soon after, I noticed that the condensate had starting coming out of secondary drain, went up to the attic and saw that the drain pan was full. Whatever the tech did for 'preventative maintenance', the result was he created a new problem for me. I called Duvall's immediately because I was deeply concerned about it. The tech was very defensive, showed no accountability or concern, and attributed the issue to all non-existent or improbable options, such as – the filter, unit must have frozen, etc. On this call, I had clearly stated that I should not have to pay more to correct this issue which had happened due to the maintenance visit. Couple days later, another tech arrived, promptly diagnosed the main cause of the issue to be due to an incorrect grading of the primary drain causing the condensate to backup in the pan. Yet, I was taken aback at the end of the visit that I would be charged an additional $125 for his trip to address the issue, besides what I had already paid for the initial maintenance visit. Note that this attic unit had been running fine for years till the "maintenance" visit, and the only way the grading would have been messed up would be during the previous "maintenance" visit. After this visit, I wrote a detailed email to Duvall's explaining the sequence of events, how the maintenance visit created a new problem, and my discomfort about being charged and additional $125. Got no response. The second tech, during a follow-up call, wanted to charge me the $125. I again expressed my discomfort with the charge. For most of the 6 minutes of the call, the tech talked over me, got angry, and told me not to call them for any future work. Given this experience I had already lost all trust, not just in their abilities, but also to be accountable to make whole their customers in case of errors.

Consumer from GAINESVILLE, VA
Jun 27, 2025

HVAC not working. Young tech arrived and thought he found issue almost immediately. He double checked with his supervisor. The supervisor had the tech run some more tests but then agreed the tech was correct with his first finding. I was happy the tech was conscientious enough to get a second opinion. He made the fix and HVAC has been good for a month. A pleasant experience with Duvall's. I recommend!

...and 57 more consumer comments for Duvall's Plumbing Heating & Air Conditioning

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