Water Heater Replacement in South Yarmouth
Get fast, fair pricing from licensed local pros. Typical South Yarmouth cost: $1.1k – $2.5k installed.
- Tank, gas
- $1.1k – $2.5k
- Tank, electric
- $900 – $2.2k
- Tankless, gas
- $2.6k – $5.3k+
- Heat pump hybrid
- $2.2k – $4.8k
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Water heater replacement cost by type.
Installed prices for South Yarmouth, adjusted for local labor. Larger tanks and code upgrades move the number up.
In South Yarmouth, Massachusetts, water heater replacement costs vary by type and installation complexity. Typical installed prices range from $700–$1,750 for a gas tank unit, $800–$1,950 for electric tank, $1,300–$3,100+ for tankless, and $1,600–$3,500 for a heat pump model. Because many homes were built around 1971, older plumbing and electrical systems may require upgrades, adding to labor time. Massachusetts requires a permit and licensed plumber/gas fitter for replacement; expansion tanks are mandatory on closed systems per the state code. The cold northern climate and winter inlet water temperatures mean efficient units, like heat pump water heaters, can offer long-term savings, especially with the federal 25C tax credit covering 30% of cost up to $2,000.
- Tank, 40–50 gal gasThe default for most US homes$1,050 – $2,500
- Tank, 40–50 gal electricNo venting required$900 – $2,200
- Tankless, gasEndless hot water, higher BTU gas line often needed$2,600 – $5,300+
- Hybrid heat pumpMost efficient, qualifies for federal credits$2,200 – $4,800
- Permit & disposalMost jurisdictions require it$45 – $300
* Cold-region homes may need extra insulation or larger tanks.
Water heaters in South Yarmouth
U.S. Census ACS- Households
- 4,722
- Homeowners
- 3,842
- 47% own
- Median home value
- $430,100
- Median income
- $77,723
- Median home built
- 1971
- Housing units
- 8,117
With a median home built in 1971, many South Yarmouth water heaters are at or past their 8–12 year lifespan — a common reason replacements spike here.
What’s different about South Yarmouth.
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 South Yarmouth
Given Massachusetts’s cold northern climate and gas water heating, heat-pump (hybrid) is the sensible default for most South Yarmouth 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 South Yarmouth code requires
Replacing a water heater in South Yarmouth 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 South Yarmouth 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 South Yarmouth
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.
Ready to get your water heater fixed in South Yarmouth?
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Hot water back in three steps.
- 1
Tell us what’s wrong
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- 2
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- 3
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Your pro confirms the price on-site and gets your hot water back. Most jobs done in a few hours.
Water Heater Replacement in South Yarmouth, explained.
What affects water heater replacement cost in South Yarmouth?
Prices vary based on unit type—heat pump models are more expensive upfront but qualify for federal tax credits. Older homes (median built 1971) may need venting, electrical, or plumbing upgrades, increasing labor. Permit fees and expansion tank installation add $100–$300. Accessibility of the water heater location and whether you switch fuel types also affect the final cost.
Common water heater issues in South Yarmouth
Sediment buildup
Hard water and sediment from older pipes can accumulate, reducing efficiency and causing noise or leaks.
Corrosion from cold water
Cold winter inlet water accelerates tank corrosion, especially in uninsulated basements.
Expansion tank failure
Closed systems require expansion tanks; if not maintained, they can fail, causing pressure surges.
Water Heater Replacement FAQs — South Yarmouth
Yes, Massachusetts requires a permit for water heater replacement. A licensed plumber or gas fitter must pull the permit and perform the work.
Water Heater Replacement near South Yarmouth
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