Service area · Home base
Water Heater Installation & Repair in Merrimack, NH
Merrimack is our home base, and water heaters are all we do. From the older colonials off Reeds Ferry Road to the newer gas-served homes along the Daniel Webster Highway corridor, we know what's in these basements and which unit belongs there.
Call anytime — emergencies get answered, day or night.
(603) 440-8113 A real person answers · Not a call treeMerrimack's Water Heater Specialists
We're headquartered in Merrimack, which means most homes in town are a short drive from our door. When your water heater fails, that proximity is the difference between a cold shower tonight and hot water back the same day.
Older Merrimack homes
Older Merrimack homes in Reeds Ferry, Thorntons Ferry, and the established neighborhoods off Baboosic Lake Road often still run original 40-gallon tanks well past their prime. When we replace one, we right-size the new unit to the household instead of just swapping like-for-like, and we address the aging shutoffs and undersized expansion tanks that usually come with a 40-year-old install.
Newer construction
Newer construction along the Daniel Webster Highway corridor and the south end of town typically has natural gas service, making these homes strong candidates for a high-efficiency Navien or Rinnai tankless system, endless hot water and a smaller footprint in the mechanical room.
Hard water and sediment
Hard water and sediment are worth planning around in Merrimack. Scale is hard on both tank and tankless units, so on hard-water homes we recommend annual flushing and, on tankless installs, a scale-resistant heat exchanger with a service valve kit so future descaling is quick.
Permits & licensing
Every install is pulled to a Town of Merrimack permit and inspected. We're licensed NH Master Plumbers (#3613), and we stand behind the work.
In Merrimack with a dead water heater? Call (603) 440-8113 — same-day service, most days.
The work
What the shop does in Merrimack
Tank at end of life? Right-sized replacement, installed to code, permit pulled — most days, same day.
RepairNo hot water this morning? Diagnosed straight — repaired if it'll hold, replaced only if it won't.
TanklessEndless hot water off the wall — Navien and Rinnai units sized for New Hampshire winters.
Heat pumpTwo to three times cheaper to run, with the NHSaves rebate paperwork handled start to finish.
MaintenanceThe annual flush and anode check that adds years to a tank — cheap insurance against a cold Saturday.
Fair questions
Merrimack questions, answered straight
How fast can you get to a Merrimack water heater emergency?
We're based in Merrimack, so this is our home turf. For a leaking tank or no hot water, we can usually be at your door within the hour. Call (603) 440-8113 and tell us it's urgent.
Does Merrimack water hardness affect my water heater?
It can. Hard water and sediment accelerate scale buildup on the bottom of a tank and around the heating elements, which shortens the unit's life and drives up energy use. On Merrimack homes with hard well water we often recommend an annual flush, and for tankless installs we'll spec a unit with a scale-resistant heat exchanger and, where it makes sense, a pre-filter or softener loop.
What about PFAS in Merrimack — does that matter for a water heater?
PFAS is a drinking-water concern, not a water-heater performance issue, so it doesn't change which unit we install. But we hear about it constantly in Merrimack because of the Saint-Gobain history, and we're happy to point you toward proper point-of-use filtration. Our focus stays on getting you the right, permit-pulled water heater.
Do you pull permits for Merrimack water heater installs?
Yes. A water heater replacement in Merrimack is permitted through the town's Building Department, and as the local licensed shop (NH Master Plumber #3613) we file the application and schedule the inspection ourselves. Being based in town, we know the office and the inspectors, which keeps the sign-off quick.
Nearby
Also twenty minutes out
Cold shower to hot water — one call.
(603) 440-8113You'll talk to the shop. Not a national installer program.
Emergencies · Answered day or night