Water Heater Replacement in Wilmington
Get fast, fair pricing from licensed local pros. Typical Wilmington cost: $1.1k – $2.6k installed.
- Tank, gas
- $1.1k – $2.6k
- Tank, electric
- $950 – $2.3k
- Tankless, gas
- $2.8k – $5.6k+
- Heat pump hybrid
- $2.3k – $5.1k
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Water heater replacement cost by type.
Installed prices for Wilmington, adjusted for local labor. Larger tanks and code upgrades move the number up.
Water heater replacement in Wilmington, Massachusetts, typically costs between $750 and $3,700, depending on the type and complexity. With a median home built in 1975, many homes have aging tanks that need replacement, often requiring updates to comply with the Massachusetts State Plumbing Code (248 CMR). Permits are mandatory, and expansion tanks are required on closed systems—a rule in effect since 2010. The cold northern climate means winter inlet water is very cold, which can affect recovery time and efficiency. Heat pump water heaters are a strong fit for this area, offering energy savings and eligibility for a 30% federal tax credit (up to $2,000). Local labor rates reflect the area's high median income of $151,034, and most homes use gas, making gas tank or tankless units common choices.
- Tank, 40–50 gal gasThe default for most US homes$1,100 – $2,600
- Tank, 40–50 gal electricNo venting required$950 – $2,300
- Tankless, gasEndless hot water, higher BTU gas line often needed$2,800 – $5,600+
- Hybrid heat pumpMost efficient, qualifies for federal credits$2,300 – $5,100
- Permit & disposalMost jurisdictions require it$45 – $325
* Cold-region homes may need extra insulation or larger tanks.
Water heaters in Wilmington
U.S. Census ACS- Households
- 9,276
- Homeowners
- 6,800
- 84% own
- Median home value
- $614,500
- Median income
- $151,034
- Median home built
- 1975
- Housing units
- 8,138
With a median home built in 1975, many Wilmington water heaters are at or past their 8–12 year lifespan — a common reason replacements spike here.
What’s different about Wilmington.
Generic cost pages skip the things that actually decide your price and your unit’s lifespan here — local code, water, and the money you can claim back.
Recommended unit for Wilmington
Given Massachusetts’s cold northern climate and gas water heating, heat-pump (hybrid) is the sensible default for most Wilmington homes. Winter inlet water runs cold here, so recovery rate matters — size up a tankless or favor a high-recovery tank. A pro can confirm the right size and fuel for your home.
Sources: Massachusetts plumbing permit and expansion tank requirements (MV Plumbing guide) · 248 CMR 10.14 Water Supply and Distribution System (Cornell LII) · EIA Massachusetts state energy data
What Wilmington code requires
Replacing a water heater in Wilmington follows Massachusetts rules under the Massachusetts State Plumbing Code (248 CMR), a state-specific code. Here’s what applies statewide:
- PermitRequired
Pulled by your licensed plumber; covers gas/venting and the expansion tank.
- Seismic strappingNot required
No state strapping mandate — one less line on the bill.
- Expansion tankRequired on closed systems
Required where a pressure regulator or backflow preventer is present.
- Plumbing codeMassachusetts State Plumbing Code (248 CMR), a state-specific code
- Good to know—
Water heater replacement must be done by a licensed plumber/gas fitter under a permit; expansion tanks required on closed systems since 2010.
Sources: Massachusetts plumbing permit and expansion tank requirements (MV Plumbing guide) · 248 CMR 10.14 Water Supply and Distribution System (Cornell LII) · EIA Massachusetts state energy data
Not sure which rules and rebates apply to your home?
A licensed Wilmington pro will walk you through code, the right unit, and what you can claim back — in one quick call.
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Money back in Wilmington
Massachusetts water heating is mostly gas, which shapes the money back:
- Federal30% of cost, up to $2,000Federal 25C tax credit →
For a qualifying ENERGY STAR heat pump water heater. Claimed on your federal return.
The federal 25C tax credit (30%, up to $2,000 for a heat pump water heater) applies in every state; Massachusetts' main HPWH rebate is the $750 utility-administered Mass Save program, excluded here as utility-only.
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- 1
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- 2
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- 3
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Water Heater Replacement in Wilmington, explained.
What influences replacement cost in Wilmington
Prices vary by unit type: tank gas ($750–$1,850), tank electric ($850–$2,100), tankless ($1,400–$3,300+), and heat pump ($1,700–$3,700). Labor costs are higher due to the area's income level and the need for licensed plumbers or gas fitters. Permit fees add to the total, and older homes (median built 1975) may require additional work like replacing corroded connections or upgrading venting for tankless units. The cold inlet water can reduce the efficiency of tankless heaters, potentially requiring a larger unit, which increases cost.
Common water heater issues in Wilmington
Aging tanks in older homes
Many homes built in 1975 have original or older tanks that are prone to leaks and sediment buildup, requiring replacement.
Expansion tank requirements
Since 2010, Massachusetts code requires expansion tanks on closed systems; older replacements may need this added, increasing cost.
Cold inlet water reducing efficiency
Wilmington's cold winters mean very cold groundwater, which can slow recovery and reduce performance, especially for tankless units.
Water Heater Replacement FAQs — Wilmington
Yes, a permit is required under the Massachusetts State Plumbing Code (248 CMR). The work must be done by a licensed plumber or gas fitter.
Water Heater Replacement near Wilmington
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