Storage tank
$1,600–$2,400Typical cost, including installation
WATER HEATER REPLACEMENT IN SOMERSWORTH
Somersworth Water Heater
Replacement
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Replacing a water heater in Somersworth.
Yes, Somersworth requires a permit for any new or replacement water heater. The plumbing permit is $10 plus $5 per fixture ($20 minimum). A gas unit also needs a mechanical permit, and a licensed gas fitter must get it. Eversource supplies electricity and Unitil supplies natural gas.
- Permit to replace with the same type
- Yes · City of Somersworth Development Services / Code Enforcement (Building Inspector)
- Permit fee
- Residential plumbing permit: $10 application fee plus $5 per fixture (a water heater counts as a fixture), $20 minimum. Mechanical (gas) permit: $10 plus $8 for every $1,000 of estimated cost, $20 minimum (Chapter 20, adopted 2013).
- Who gets the permit
- An NH-licensed plumber can apply for a plumbing permit, or the owner can if they live in the single-family home. All gas work must be done and permitted by an NH-licensed gas fitter. Somersworth's ordinance says this is stricter than state law, which lets owners who live in the home do their own gas work.
- Electric utility
- Eversource (Public Service of New Hampshire)
- Gas utility
- Unitil
- Water
- City of Somersworth Water Department
- Rebate worth checking
- NHSaves heat pump water heater rebate (Active)
- Typical home
- Built 1967 (median) · 58% owner-occupied
- Companies found
- 4 that advertise water heater work
01 / TYPICAL PRICES
What a new water heater costs.
Know before you call.
Heat-pump tank
$2,500–$5,000Typical cost, including installation
Tankless
$2,400–$5,400Typical cost, including installation
AI equipment illustrations; models vary and images are not to scale. Typical national prices from Home Depot ↗, checked September 28, 2026. The source doesn’t say how many jobs the ranges are based on. These are not Somersworth averages or guaranteed quotes.
Compare what each quote includes.Equipment · Labor · Permits · Old heater removalHow to compare quotes →
What we know about prices in Somersworth
- National installer’s published rangeThe ranges above. Home Depot ↗
- Local permit feeResidential plumbing permit: $10 application fee plus $5 per fixture (a water heater counts as a fixture), $20 minimum. Mechanical (gas) permit: $10 plus $8 for every $1,000 of estimated cost, $20 minimum (Chapter 20, adopted 2013).. City of Somersworth Development Services / Code Enforcement (Building Inspector) fee source ↗
- Local company’s advertised price1 of the companies listed for Somersworth post water heater prices or specials on their websites: Service Experts Heating, Air Conditioning & Plumbing (Somersworth). Each offer has its own conditions.
- Measured local dataNot collected yet, so no Somersworth average is shown.
What can change the price in Somersworth?
A mechanical permit covers all gas work and gas appliance installs past the regulator.
02 / COMPANIES WE FOUND
Who replaces water heaters in Somersworth?
Companies that advertise water heater replacement here, with what their water heater customers say.
Companies we found in our research. They are not Ember & Tank providers or partners. We show selected reviews, not a rating or every review. How we choose reviews →
Service Experts Heating, Air Conditioning & Plumbing (Somersworth)
Lists Somersworth among the areas it serves. Based in Somersworth, NH.
- Tank
- Tankless
- Heat pump
- Repair
Published price: Offer: 'Get Hot Water Today — Or Get $500 Off' (book by 3pm for same-day installation; valid through 10/15/2026). Also water heater lease option (no money down) and 10% military discount. No installed prices published.
What the reviews say
Water heater feedback A Yelp reviewer (2022) praised on-time, friendly crews, clean detailed pipework and an explanation of the system after a boiler and hot water tank replacement.
Worth knowing A Yelp reviewer (2018) said a two-visit gas water heater repair totaled $222.87, with a part billed at about double its retail price and separate service and labor fees for a 15-minute return visit; no company response was visible.
2 water heater reviews read, checked September 30, 2026.
East Coast HVAC
Lists Somersworth among the areas it serves. Based in Dover, NH.
- Tank
- Tankless
- Heat pump
- Repair
- Emergency service
What the reviews say
Water heater feedback A Yelp reviewer (2020) praised the team's communication, scheduling flexibility and respect for the home during a propane on-demand water heater installation.
Worth knowing A Yelp reviewer (Dec 2024) said a $4,100 water heater quote had no itemized costs, and another (2018) said they were told the company was not taking new customers; no company responses were visible.
3 water heater reviews read, checked September 30, 2026.
Dry Air Systems
Lists Somersworth among the areas it serves. Based in Newburyport.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Mr. Rooter Plumbing of Greater New Hampshire
Lists Somersworth among the areas it serves. Based in Manchester, NH.
- Tank
- Tankless
- Repair
- Emergency service
What the reviews say
We haven’t found reviews that mention this company’s water heater work yet.
Order: companies based in Somersworth first, then companies whose water heater reviews we’ve read. Each group is alphabetical. These businesses are not our employees or vetted partners and do not receive requests from Ember & Tank. We haven’t checked their license, insurance or quality of work. NH OPLC license lookup ↗.
See before-and-after replacement examples from independent companies →
HOMES IN SOMERSWORTH
What Somersworth homes are like.
1967Median year built
64%Built before 1980
58%Owner-occupied
21%Heat with utility gas
45%Single-family homes
About 64% of homes were built before 1980. Older homes often have older venting, smaller closets and shutoff valves that should be checked before install day.
U.S. Census Bureau, American Community Survey ACS 2024 5-year ↗ (2020-2024). Heating fuel is what homes use to heat the house. It often, but not always, matches the water heater’s fuel.
LOCAL CONDITIONS
What’s different in Somersworth.
Licensed gas fitter required, even for homeowners
In Somersworth, all gas work must be permitted and done by an NH-licensed gas fitter. The city notes this is stricter than state law, which lets owners who live in the home do their own gas work.
ENERGY & WATER
Who supplies Somersworth homes.
Energy
- Electric: Eversource (Public Service of New Hampshire)
- Gas: Unitil
Eversource: Communities we serve ↗ · Unitil: Service Areas ↗
Water
City of Somersworth Water Department
REBATES & CREDITS
Rebates for Somersworth homes.
For Eversource (Public Service of New Hampshire) and Unitil customers in Somersworth. Ask installers for the price before rebates, then check with the program that you qualify.
- NHSaves heat pump water heater rebate ↗Active$900 for a new ENERGY STAR heat pump water heater up to 85 gallons (UEF 3.30 or higher for integrated units, 2.80 or higher for split-system or 120-volt models).
- Federal Energy Efficient Home Improvement Credit (25C) ↗EndedCovered improvements made through December 31, 2025.
Checked September 30, 2026. Who qualifies and the conditions: New Hampshire rebates · How to check an incentive.
PERMITS & LICENSING
Permits and licenses in Somersworth.
Permits and who issues them
Somersworth lists 'Water Heaters, New or Replacement' as work that needs a permit. Plumbing needs a plumbing permit, and installing any gas appliance needs a mechanical permit. Apply through the SmartGov online portal. The owner or contractor schedules the inspections.
We didn't find a Somersworth contractor license.
City of Somersworth Development Services / Code Enforcement (Building Inspector) ↗ · City of Somersworth: What Needs a Permit? ↗ · Somersworth Chapter 20 Building Codes (adopted 9/16/2013) ↗ · NH RSA 153:36 Exceptions (mechanical licensing) ↗
Check the installer’s license
Ask for the license number and search it yourself on the NH OPLC license lookup ↗. A listing on Ember & Tank is not a license check. New Hampshire licensing explained →
NEARBY CITIES
Compare places near Somersworth.
| City | Distance | Permit to replace | Fee | Electric |
|---|---|---|---|---|
| Dover | 5 mi | Required | $6 | Eversource (NH) |
| Rochester | 5 mi | Required | — | Eversource (NH) |
| Durham | 8 mi | Required | $50 | Eversource (NH), New Hampshire Electric Cooperative (NHEC) |
| Portsmouth | 14 mi | Required | $75, | Eversource (NH) |
| Hampton | 22 mi | Required | $60 | Unitil, Eversource (Public Service of New Hampshire) |
| Derry | 32 mi | Required | $35 | Eversource (Public Service of New Hampshire), Unitil |
COMMON QUESTIONS
Somersworth water heater questions.
Does a water heater replacement need a permit in Somersworth?
Yes. The city lists new or replacement water heaters as work that needs a permit.
Can I do the gas hookup myself?
No. Somersworth requires a licensed gas fitter for gas work, which is stricter than state law.
What does the plumbing permit cost?
$10 plus $5 per fixture, $20 minimum. A gas unit also needs a mechanical permit: $10 plus $8 for every $1,000 of cost, $20 minimum.
More guides: New Hampshire water heater replacement · All local guides