Annual backflow preventer testing, repair and certification for homes and businesses. Local plumbers serving Dover and Strafford County — open 24/7 with upfront pricing.
(888) 480-9811MJA Plumbing and Heating is the trusted choice for backflow testing in Dover, New Hampshire. Homeowners in Dover and nearby Madbury, Rollinsford, Somersworth rely on our plumbers for same-day service, honest pricing and work that lasts. Annual backflow preventer testing, repair and certification for homes and businesses. Call (888) 480-9811 to schedule backflow testing in Dover today.
Backflow preventers keep contaminated water from flowing back into the public supply, and most towns require annual testing. MJA Plumbing and Heating tests, repairs and certifies backflow assemblies for homes, irrigation systems and commercial properties and files the paperwork.
A real person picks up day or night, and an emergency plumber is dispatched immediately.
You get the price in writing before we start. No surprises on the invoice.
Most repairs finish on the first visit because the parts are already on the truck.
Our plumbers live and work in the communities we serve and know the local water and winters.
Shoe covers, drop cloths and a tidy job site every time.
If a repair we made fails, we come back and make it right.
We can put your property on an annual reminder so you never miss the town deadline.
We provide backflow testing throughout Dover and the neighboring towns of Madbury, Rollinsford, Somersworth, Durham, Newington, Lee.
“We manage a small restaurant and MJA handles all our plumbing. Fast, professional, and they answer the phone.”
Angela D.“Sump pump died during a storm. They replaced it and added battery backup the same afternoon.”
Pete S.“Booked a plumbing inspection before we bought our house. Report was thorough and saved us a big negotiation.”
Jen K.We offer same-day backflow testing in Dover and 24/7 emergency response. Call (888) 480-9811 and we will give you an arrival window right away.
You get an upfront, written price before any work starts. There are no overtime charges for nights, weekends or holidays.
Yes — we cover all of Strafford County including Madbury, Rollinsford, Somersworth, Durham.
Emergency plumbers on call 24 hours a day across New Hampshire. Upfront pricing, same-day service.
(888) 480-9811