Water heater replacement in Dover, NH
We replace tank and tankless water heaters throughout Dover and the rest of Strafford County. One call gets you the installed price, the permit, the haul-away, and a New Hampshire-licensed installer — not a lead form sold four times.
What a changeout looks like in Dover
Most Dover homes we quote have basement installs — that is what our estimators run into here week after week. Dover runs on soft water that is easy on a tank but rough on the old galvanized nipples at the top of it. Winter groundwater arrives near 40°F, so a tank that felt fine in September can run short in January — the same unit simply has more work to do. Cold winter inlet temperatures mean a 50-gallon tank behaves like a 40 in January.
Every quote starts with three questions: gas or electric, how many gallons, and where the unit lives. Those three answers decide the price far more than the brand on the box. If you want the full breakdown before you call, the cost page lists every line item we charge for, and the tankless page covers the sizing math.
Dover water heater questions
How much does water heater replacement cost in Dover?
A standard 40- or 50-gallon tank changeout in Dover typically lands at $1,450–$2,450 installed, including the unit, labor, permit, and haul-away. A condensing tankless conversion runs $3,800–$5,900 because it adds venting and usually a gas-line or electrical upgrade. Your exact number depends on fuel type, where the unit sits, and which code items your inspector requires.
Can you replace my water heater today in Dover?
Usually, yes. It is one of the busiest dispatch areas in the state, so there is usually a truck within a short drive. Calls placed before early afternoon most often get a same-day window; later calls get first slot the next morning. Standard 40- and 50-gallon gas and electric tanks are stocked, so we are not waiting on a supplier for the common sizes.
Is a permit required in Strafford County?
Cold winter inlet temperatures mean a 50-gallon tank behaves like a 40 in January. We pull the permit under the installing plumber's license and schedule the inspection, so the paperwork closes properly and shows up clean when you sell the house.
Should I switch to tankless in Dover?
Tankless is doable in Dover, but cold winter inlet water cuts a unit's usable flow substantially. We size for January or steer you to a high-recovery tank instead of selling you a unit that struggles for four months a year.
What if my tank is leaking right now?
Shut the cold-water valve on top of the heater, kill the gas or the breaker, and call us. Water pouring from the tank body cannot be repaired — the glass lining has failed — so replacement is the only fix. We keep emergency slots open across New Hampshire for exactly this call.
Included on every job
- Flat installed price quoted before the truck rolls — no hourly surprises
- Permit pulled and inspection scheduled under a licensed local plumber
- Old unit hauled away and disposed of, including the pan and fittings
- Code items priced up front: expansion tank, pan, drain line, shutoff valve
- New Hampshire permit filing and inspection handled for you
Talk to a real dispatcher
Hot water back in Dover today
Tell our dispatcher the fuel type and the gallon size on the label. You get a flat installed price for Dover on that call — no visit required to quote it.