I've been working with Mike for awhile on issues related to residential plumbing. He always meets my high expectations.

They have an awesome commitment to service! Our hot water heater started leaking on Sunday night, so we shut off the water to it and called Duvall at 0900. Jay and TJ were here an hour prior to the earliest time he estimated. [Came at noon and estimated between 1:00-3:00.] Jay called prior to coming to make sure I was still available. Which is more than most companies do, IF they come when they say! I was surprised that he got here so quickly. He could have said I needed a new hot water heater and replaced the entire process, BUT he did only what was needed and saved both time and money for our family! We have used them prior to this for a MUCH bigger job and they were equally qualified for the job. I WOULD RECOMMEND Duvall for ANYTHING that you require in the Plumbing and HVAC area! They are polite, honest, thorough, and clean. You feel safe with them in your home and know the work will be done correctly the FIRST time. Thank you Jay and the Duvall family-owned business for the job!

we have been doing business with this company for years. they are honest and do a wonderful job, always prompt, have never had to wait for a technician to come out, even in several feet of snow when my heat went on the fritz. will give you a very fair price for the excellent work and service they provide. do not hesitate to contact this company. you will not be disapointed! linda and jimi daniels manassas, virginia