WATER HEATER SERVICES
Tankless Water Heaters in Kennebunk, Maine
Kennebunk, York County
Endless Hot Water · Space-Saving Design · 20+ Year Lifespan
- Google reviews
- Licensed & insured
- Since 2019
Efficiency Maine Registered Vendor- 100% Satisfaction Guarantee
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Tankless Water Heaters for Kennebunk Homeowners
Endless Hot Water
Space-Saving Design
20+ Year Lifespan
Kennebunk homeowners call Aces Highlands for tankless water heaters because we are close by, based at 508 Riverside St Unit 1 in Portland, and out on York County roads every day — we know this area's housing, weather and permit process cold.
Tankless water heaters heat water on demand, providing endless hot water while saving space and energy. Aces Highlands installs propane and electric tankless systems properly sized for your household needs.
A tankless water heater heats water only when you need it, eliminating the standby energy loss of keeping a tank of water hot around the clock. This can reduce your water heating costs by 24-34% depending on your usage.
We install tankless units from trusted brands and ensure proper gas line sizing, venting, and water flow for optimal performance. Electric tankless models may require an electrical panel upgrade to support the higher amperage draw. Not every home is a good candidate for tankless — we evaluate your situation honestly and recommend the best option.
Tankless water heaters last 20+ years with proper maintenance, compared to 10-12 years for tank models. While the upfront cost is higher, the longer lifespan and energy savings make tankless a smart long-term investment for many homeowners. We offer financing to help spread the cost over time.
Why Kennebunk Calls Aces Highlands
- A York County crew that already knows Kennebunk's streets and housing stock
- Diagnostics come first, upsells do not — the invoice matches the quote
- Booking stays quick because we do not overbook the schedule
- Licensed, insured, and background-checked, and reviewed by real customers on Google
Kennebunk Homes and What They Need
Kennebunk has the newest median home of the five York County coastal towns Aces studied, built in 1983, with under 19 percent of units predating 1940 and about 30 percent predating 1960. That newer stock still runs plenty of aging original heating and electrical systems worth a checkup.
Water Supply and Drains in Kennebunk
Public water comes from the Kennebunk, Kennebunkport & Wells Water District, sourced from the Branch Brook watershed, while the separate Kennebunk Sewer District treats wastewater at its own facility on Water Street. On properties outside the sewer district's reach, a sewer line repair is really a septic-system question instead.
Getting to Know Kennebunk
Kennebunk broke off from Wells and Arundel to incorporate as its own town on June 24, 1820; the name comes from an Abenaki word describing 'the long cut bank.' Its Summer Street Historic District, home to the Federal-style Wedding Cake House, was the very first historic district in Maine listed on the National Register of Historic Places.
Kennebunk is also the hometown of U.S. Senator and Secretary of State Edmund Muskie and headquarters to Tom's of Maine. Since December 1893, part of town has been served by the Kennebunk Light & Power District, one of only two municipally owned Light & Power Districts left in the state.
Local & Independent — Not a Franchise
There is no franchise behind Aces Highlands — just a Portland-based crew that works Kennebunk under its own name. Nobody on our crew works on commission, so there is no incentive to sell you more than the job needs. That is how we keep customers calling back, one honest job at a time.
How a Tankless Water Heater Works
- Flow sensor — detects water flow and triggers ignition
- Burner — fires on demand, no standby tank
- Heat exchanger — heats the water as it passes through
- Hot water out — instantly, only when it's needed
- Compact — mounts on the wall, saves floor space
Homeowner Guide
Tankless Water Heaters: Sizing by Flow Rate, Not Gallons
A tankless water heater is sized completely differently from a tank, and misunderstanding that is the most common reason a homeowner ends up disappointed with one.
Read the Full GuideMore Water Heaters
Tankless Water Heaters is part of our full water heaters lineup. Explore the details or browse everything we offer in Kennebunk.
Tankless Water Heaters DetailsAll Services in KennebunkService Info
Codes & Permits for Tankless Water Heaters in Kennebunk
In Kennebunk, plumbing permits come from the Local Plumbing Inspector at the Kennebunk Code Enforcement Office (Community Development Department) (Kennebunk Town Hall, 2nd Floor, 1 Summer Street, Kennebunk, ME 04043, (207) 985-2102 ext. 1303). With 11,820 residents, Kennebunk is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Maine's Mandatory Shoreland Zoning Act applies along the Kennebunk and Mousam Rivers and Kennebunk's Atlantic coastline (Kennebunk Beach, Gooch's Beach, Mother's Beach), restricting structure placement near the water.
- 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 Tankless Water Heaters in Kennebunk
- Kennebunk, Kennebunkport & Wells (KK&W) Water District covers most of Kennebunk (Branch Brook watershed (surface water)) — homes still on a private well get the well and pressure tank looked at as part of the same visit.
- Unitil (Northern Utilities) reaches parts of Kennebunk, so a gas water heater is an option on those streets; propane, electric and heat-pump models work anywhere in town.
- The swap is permitted through the Kennebunk Code Enforcement Office (Community Development Department), the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
Kennebunk's public safety building on Summer Street, near the downtown village center.
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
Google reviews
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.
Malina Foss
3 months ago
I can not recommend Sam and his team enough!! In a world of slow response times and cut corners they went above and beyond in every area, installing a new electrical panel for me. Their attention to detail and love of their craft truly sets them apart from the rest!
Steve Robertson
3 months ago
Where to begin? These guys hooked up a sauna for me and did an amazing job, it was not a small job. Projects big or small, these guys are my go to. Responsive, reasonably priced, and professional. In a world where it is tough to get good service, I'm thrilled to have these guys in my phone.
Ryan Eling
3 months ago
This team was called in by my property management company for where I rent. Elijah and his team were professional, clear speaking. Good communicators gave me the real deal. Didn't give any runaround. I trust them and want to use them for my own projects.
Christian van Loenen
4 months ago
Beyond impressed with Elijah and his team. Professional, communicative, and do great work. HIGHLY recommend. Thank you, Elijah!
Tankless Water Heaters FAQs
Does a tankless water heater really provide endless hot water?
Yes, within its flow capacity. A properly sized unit will run a shower indefinitely without going cold. The limit is simultaneous use — run three showers and a dishwasher at once and you can exceed its flow rate. That is why honest sizing for your household matters more than the brand.
How much does tankless water heater installation cost?
Nationally, installed costs typically run $2,500-$5,500 depending on fuel type, venting, and whether gas lines need upsizing — higher than a tank swap. The offset is a 20+ year lifespan and lower operating costs. We quote your exact price in writing before any work begins.
How long do tankless water heaters last?
Twenty years or more with annual descaling and basic care — roughly twice the life of a tank water heater. The heat exchanger is the key component, and keeping it free of scale is what gets you the full lifespan.
Does Maine’s cold groundwater affect tankless performance?
Yes, and it is the most important local factor. Winter inlet water in Maine can be 30+ degrees colder than in southern states, which reduces a unit’s effective flow rate. We size for Maine winter conditions so your system performs in January, not just on paper.
Will you talk me out of tankless if it is wrong for my home?
Yes — and we do it regularly. As a local company with no sales commissions, we have no reason to push the more expensive option. If your usage, fuel situation, or budget points to a quality tank heater instead, that is exactly what we will recommend.
More Services in Kennebunk
Aces Highlands handles HVAC, plumbing, and electrical for Kennebunk homeowners. Here is more of what we do nearby.
Water Heater Repair in Kennebunk
Water Heater Repair in KennebunkPanel Upgrades in Kennebunk
Panel Upgrades in KennebunkWiring & Rewiring in Kennebunk
Wiring & Rewiring in KennebunkOutlet & Switch Installation in Kennebunk
Outlet & Switch Installation in KennebunkLighting Installation in Kennebunk
Lighting Installation in KennebunkEV Charger Installation in Kennebunk
EV Charger Installation in KennebunkTankless Water Heaters in Nearby Towns
Need Tankless Water Heaters in Kennebunk?
Call our Kennebunk team or get a free quote. We will get you scheduled and take care of it right the first time.
More Ways We Can Help
Google ReviewsService Areas
48We proudly serve communities throughout Southern Maine, including…
Portland, MaineSouth Portland, MaineScarborough, MaineWestbrook, MaineGorham, MaineFalmouth, MaineCape Elizabeth, MaineCumberland, MaineWindham, MaineStandish, MaineGray, MaineNew Gloucester, MaineRaymond, MaineNorth Yarmouth, MaineYarmouth, MaineFreeport, MainePownal, MaineBridgton, MaineBrunswick, MaineHarpswell, MaineAugusta, MaineWinthrop, MaineGardiner, MaineHallowell, MaineTopsham, MaineBath, MaineLewiston, MaineAuburn, MaineLisbon, MainePoland, MaineTurner, MaineSabattus, MaineBiddeford, MaineSaco, MaineOld Orchard Beach, MaineKennebunk, MaineKennebunkport, MaineWells, MaineKittery, MaineYork, MaineBuxton, MaineWaterboro, MaineBerwick, MaineSouth Berwick, MaineEliot, MaineNorth Berwick, MaineLebanon, MaineSanford, Maine
Guides & Tips
8Learn more in our blog, with articles such as…
HVAC & Plumbing BlogWhat to Do When Your Heat Goes Out in WinterWhy Your Heat Pump Is Freezing Up — and How to Fix ItTankless vs. Tank Water Heater: Which Is Best for Your Maine Home?How Much Does a Heat Pump Cost in Maine? (Plus Efficiency Maine Rebates)Heat Pump vs. Furnace: Which Is Right for Your Maine Home?5 Signs Your Boiler Needs ReplacementSigns Your Electrical Panel Needs an Upgrade
Company
8A few more places to begin include…
Services
39Explore the rest of what we do, from…
All ServicesHeat Pumps & Mini-SplitsHVAC ServicesBoilers & Hydronic HeatingFurnace Repair & InstallationResidential PlumbingWater HeatersElectrical ServicesHeat Pump InstallationHeat Pump RepairHeat Pump MaintenanceDuctless Mini-SplitsAC InstallationAC RepairBoiler InstallationBoiler RepairBoiler MaintenanceRadiant Floor HeatingFurnace InstallationFurnace RepairFurnace MaintenanceLeak Detection & RepairFixture InstallationDrain CleaningSewer Line Repair & ReplacementTank Water HeatersTankless Water HeatersWater Heater RepairPanel UpgradesWiring & RewiringOutlet & Switch InstallationLighting InstallationEV Charger InstallationGenerator InstallationElectrical Repair & TroubleshootingEmergency ServicesEmergency Heating RepairEmergency PlumberEmergency Electrician
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