Water Heater Replacement in Medford
Get fast, fair pricing from licensed local pros. Typical Medford cost: $1.3k – $3.1k installed.
- Tank, gas
- $1.3k – $3.1k
- Tank, electric
- $1.1k – $2.8k
- Tankless, gas
- $3.3k – $6.6k+
- Heat pump hybrid
- $2.8k – $6.1k
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Water heater replacement cost by type.
Installed prices for Medford, adjusted for local labor. Larger tanks and code upgrades move the number up.
In Medford, Massachusetts, where the median home was built in 1943, many homeowners face water heater replacement due to aging systems. With cold northern winters and cold inlet water, a heat pump water heater is a strong fit, offering efficiency and eligibility for the federal 25C tax credit (30%, up to $2,000). Local installed pricing for heat pump units ranges from $2,000 to $4,400, while tank gas runs $900–$2,200. Permits are required under the Massachusetts State Plumbing Code (248 CMR), and expansion tanks are mandatory on closed systems since 2010. Licensed plumbers or gas fitters handle the work, ensuring compliance with local codes.
- Tank, 40–50 gal gasThe default for most US homes$1,300 – $3,100
- Tank, 40–50 gal electricNo venting required$1,100 – $2,800
- Tankless, gasEndless hot water, higher BTU gas line often needed$3,300 – $6,600+
- Hybrid heat pumpMost efficient, qualifies for federal credits$2,800 – $6,100
- Permit & disposalMost jurisdictions require it$55 – $375
* Cold-region homes may need extra insulation or larger tanks.
Water heaters in Medford
U.S. Census ACS- Households
- 24,699
- Homeowners
- 13,520
- 51% own
- Median home value
- $669,600
- Median income
- $114,863
- Median home built
- 1943
- Housing units
- 26,761
With a median home built in 1943, many Medford water heaters are at or past their 8–12 year lifespan — a common reason replacements spike here.
What’s different about Medford.
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 Medford
Given Massachusetts’s cold northern climate and gas water heating, heat-pump (hybrid) is the sensible default for most Medford 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 Medford code requires
Replacing a water heater in Medford 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 Medford 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 Medford
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 Medford, explained.
What Affects Water Heater Replacement Cost in Medford
In Medford, the age of homes (median built 1943) can complicate installation, potentially increasing labor costs. The type of unit chosen—tank gas, electric, tankless, or heat pump—drives price differences, with heat pump units being more affordable long-term due to rebates. Permit fees and expansion tank requirements add to the total. Winter inlet water temperature is cold, which may affect heat pump efficiency, but the federal tax credit helps offset upfront costs.
Common Water Heater Issues in Medford
Aging Infrastructure
Many Medford homes built before 1950 have outdated plumbing or electrical systems that may need upgrades during replacement.
Expansion Tank Requirement
Since 2010, Massachusetts requires expansion tanks on closed systems; older homes may lack them, adding to replacement costs.
Permit and Code Compliance
Water heater replacement in Medford requires a permit and must follow the Massachusetts State Plumbing Code (248 CMR), which can delay projects if not planned.
What to Expect During Water Heater Replacement in Medford
A licensed plumber or gas fitter will first obtain a permit from the city. They will disconnect the old unit, install the new one, and ensure an expansion tank is present if needed. The job typically takes 4–8 hours. After installation, the plumber will test the system and provide an upfront cost estimate. Be prepared for potential minor modifications to accommodate newer units in older homes.
Water Heater Replacement FAQs — Medford
Yes, a permit is required under the Massachusetts State Plumbing Code (248 CMR). Your plumber will typically handle the permit process.
Water Heater Replacement near Medford
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