
Tank Water Heaters in Harpswell, Maine
40-80 Gallon Options · Electric, Gas & Propane · Same-Day Service Available
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- Since 2019
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Tank Water Heaters for Harpswell Homeowners

For tank water heaters in Harpswell, homeowners turn to Aces Highlands: a Portland-based crew (508 Riverside St Unit 1) that is minutes from Cumberland County and already familiar with the homes, climate and codes here.
Traditional tank water heaters remain a reliable and cost-effective choice for many Maine homes. Aces Highlands installs and replaces tank water heaters with clean, professional workmanship and attention to code compliance.
We install electric, natural gas, and propane tank water heaters in sizes from 40 to 80 gallons. We help you determine the right size based on your household water usage, number of bathrooms, and daily hot water needs. Not sure if a tank or tankless water heater is right for you? We can help you decide.
Modern tank water heaters are significantly more efficient than older models. Upgraded insulation, improved burner designs, and electronic ignition systems all contribute to lower operating costs and faster recovery times.
Our installation includes removal of your old unit, proper placement and leveling, all plumbing and gas connections, temperature and pressure relief valve installation, and thorough testing. We handle everything from start to finish.
Why Harpswell Calls Aces Highlands
- Close enough to Harpswell for a fast response, local enough to know the town
- Honest diagnostics and transparent pricing — no upselling
- Booking stays quick because we do not overbook the schedule
- Licensed and insured, with a track record of Google reviews from real jobs
Harpswell Homes and What They Need
Harpswell's housing is almost all detached houses, over 90 percent in Census estimates, spread along Harpswell Neck and Orr's, Bailey and Great Island. Of roughly 4,300 homes, about a third are seasonal, many of them old summer cottages on the water. The median build year is 1979; about one in five homes predates 1940, and roughly half predate 1980, while under a fifth were built after 2000. Many started as summer places and were converted to year-round use, which often leaves shallow crawlspaces, piping in unheated spaces and additions wired and plumbed at different times. Salt air adds its own wear to outdoor equipment and fittings. On older island houses, repiping and plumbing upgrades are often part of making a cottage livable through February.
Water Supply and Drains in Harpswell
Harpswell has no public water or public sewer. Every home relies on a private well and, apart from roughly 96 properties with overboard discharge systems, an individual septic system; the town's own study says public systems are seen as cost-prohibitive because of the jagged shoreline and shallow bedrock. Harpswell has no sand-and-gravel aquifers, so wells draw from fractures in metamorphic bedrock, and yields vary widely even between neighbours. Where fractures connect to the bay, heavy pumping can pull in salt water; one condo complex's well turned salty in 2017. Iron, sulfur and arsenic also occur naturally. Water quality affects plumbing equipment directly, and water heater replacement on a coastal well goes better when salt, iron and hardness are tested and treated first.

Getting to Know Harpswell
Harpswell has more coastline than any other town in Maine — about 216 miles of it, spread across a long peninsula and dozens of islands. It is also home to the Bailey Island Bridge, built in 1927–28 from granite slabs stacked in an open cribwork that lets the tide flow through — the only granite cribstone bridge of its kind in the world.
All that shoreline means nearly every Harpswell home lives with salt air, wind, and weather off the water. We choose equipment and mounting locations accordingly, so systems on Orr's and Bailey Islands last as long as they should.
Local & Independent — Not a Franchise
There is no franchise behind Aces Highlands — just a Portland-based crew that works Harpswell under its own name. Technicians are not on commission, so the recommendation you get is the one your house actually needs. Earning the next call, not hitting a sales target, is the entire business plan.
How a Tank Water Heater Works
- Cold inlet — the dip tube carries it to the tank bottom
- Burner — heats water at the bottom of the tank
- Anode rod — sacrificial rod that fights corrosion
- T&P valve — releases pressure if it builds too high
- Hot outlet — draws the hottest water from the top
Homeowner Guide
Tank Water Heaters: Sizing, Anode Rods & Replacement Timing
Most homeowners replace a tank water heater the day it fails, in a rush. Understanding the parts that actually wear out lets you replace it on your own schedule instead.
Read the Full GuideMore Water Heaters
Tank Water Heaters is part of our full water heaters lineup. Explore the details or browse everything we offer in Harpswell.
Tank Water Heaters DetailsAll Services in HarpswellService Info
Codes & Permits for Tank Water Heaters in Harpswell
In Harpswell, plumbing permits come from the Local Plumbing Inspector at the Town of Harpswell Code Enforcement Office (263 Mountain Rd, Harpswell, ME 04079, (207) 833-5771 (main) / (207) 387-8833 (direct)). With 5,031 residents, Harpswell is required to enforce the Maine Uniform Building and Energy Code (MUBEC). With land area of only about 24 square miles against over 100 square miles of water, an unusually large share of Harpswell's parcels are seasonal/shoreland properties subject to Maine's Shoreland Zoning setback and septic rules.
- Maine's 2021 energy code (IECC, part of MUBEC) requires insulation with an R-value of at least R-3 on 3/4-inch and larger hot-water piping inside conditioned space, and on recirculation piping, piping outside conditioned space, and buried piping. maine.gov
- A propane or natural gas-fired water heater installation or connection requires a Maine Fuel Board Propane and Natural Gas Technician license. mainelegislature.org
- Maine's adopted plumbing code (2021 Uniform Plumbing Code) requires every water heater's potable-water connections and temperature/pressure relief valve to meet UPC installation requirements, including a proper gravity discharge line. up.codes
- Every Maine municipality must annually appoint at least one Local Plumbing Inspector (LPI), who does not have to live in that town, to issue plumbing permits and enforce the state's plumbing rules and Subsurface Wastewater Disposal (septic) rules locally. mainelegislature.org
How Aces Highlands Handles Tank Water Heaters in Harpswell
- Most Harpswell homes are on No public water district; private wells water from Private individual wells — no town-wide municipal or district water system was found for Harpswell; on a private well, we check the pressure tank and water quality alongside the tank water heaters.
- We permit the replacement at the Town of Harpswell Code Enforcement Office, route the T&P relief valve to a code-compliant discharge, and handle gas hookups under our Fuel Board license.
A 1757 meetinghouse on Harpswell Neck Road, one of the oldest surviving public buildings in the town.
Street View © Google
Why homeowners choose Aces Highlands
We show up when we say
We show up on time, as promised, and complete the work with clean professionalism.
Pricing upfront, before work starts
Honest diagnostics and a clear price before any work begins — no surprises on the invoice.
Done right the first time
HVAC, plumbing and electrical done right the first time — backed by our workmanship guarantee and 100% satisfaction guarantee.
Locally owned in Portland, Maine · Serving Greater Portland and Southern Maine since 2019
What Water Heaters customers say
Nichole A
a year ago
Highly recommend! Cannot thank them enough for fixing my water heater. Elijah is very reliable and communicative. No hassle, no phone tag, transparent with cost and quick to repair the issue. I know who to call if I need help again!
Ruth Kirkwood
3 months ago
This company is excellent. They quickly and efficiently repaired the kitchen faucet that was loose.
John Walton
5 months ago
I've had three HVAC issues over the past two years. Each time I call, Elija or the office picks up the phone, and my problem is fixed in 24 hrs. Their solutions always feel correct and honest. I cannot recommend them more.
Adam Ayan
10 months ago
Elijah and Highlands Heating & AC were super helpful! Boiler failed over the weekend and Elijah was very responsive and helpful, getting us up and running right away. I would recommend him at HH&AC highly!
Justin Funk
a year ago
We highly recommend Highlands Heating & AC. They are extremely responsive, knowledgeable and do great work. Our boiler stopped working and Elijah was quick to respond after hours on a Friday. He installed a new boiler and heat pump hot water heater.
Tom
14 Aug 2024
He was very friendly. He gave me an honest explanation on why I shouldn't recharge my A/C unit and what he suggested made much more sense. He really took care of everything. He is very professional, always called me with updates. 5 stars is not enough — I give this company 10 stars.
Tank Water Heaters FAQs
How long does a tank water heater last?
Typically 10 to 12 years. Regular maintenance — flushing sediment and replacing the anode rod — can extend that, while hard water and neglect shorten it. If your heater is past 10 years old, it is smart to plan the replacement before it fails.
What size water heater do I need for a family of four?
A 50-gallon tank is the usual fit for a family of four, though a fast-recovery gas or propane unit can sometimes do the job at 40 gallons. Heavy hot-water habits — long showers, big soaking tubs, back-to-back laundry — may call for 60 gallons or more. We size it from your actual peak usage.
Can you replace my water heater the same day?
In many cases, yes. We stock and source common tank sizes quickly, and a standard like-for-like replacement typically takes two to four hours once we are on site. Call (207) 670-8616 in the morning and there is a good chance you have hot water again by evening.
Is it worth switching from electric to gas or propane?
If your home already has gas or propane service, switching can mean faster recovery and lower operating costs. If it does not, the cost of adding fuel lines usually outweighs the savings. We give you a straight answer for your specific home — not a one-size-fits-all pitch.
Will you pressure me toward a more expensive tankless unit?
No. As a local Portland company with no franchise quotas, we recommend tankless only when it genuinely fits your home and usage. For many Maine households, a well-installed tank heater is the right value — and we will say so plainly.
More Services in Harpswell
Aces Highlands handles HVAC, plumbing, and electrical for Harpswell homeowners. Here is more of what we do nearby.
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Call our Harpswell team or get a free quote. We will get you scheduled and take care of it right the first time.
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