WATER HEATER SERVICES
Tankless Water Heaters in Kennebunkport, Maine
Kennebunkport, York County
Endless Hot Water · Space-Saving Design · 20+ Year Lifespan
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- Licensed & insured
- Since 2019
Efficiency Maine Registered Vendor- 100% Satisfaction Guarantee
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Tankless Water Heaters for Kennebunkport Homeowners
Endless Hot Water
Space-Saving Design
20+ Year Lifespan
Need tankless water heaters in Kennebunkport? Aces Highlands runs out of 508 Riverside St Unit 1 in Portland and covers York County routinely, which means a technician who already understands the area's homes and permit process shows up, not a stranger learning it on the job.
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 Kennebunkport Calls Aces Highlands
- We run trucks through Kennebunkport and the rest of York County routinely, not occasionally
- You get the real problem and a firm number, not a pitch for extras
- Same-week scheduling for most service calls
- Licensed, insured, and background-checked, with a track record of Google reviews from real jobs
Kennebunkport Homes and What They Need
Kennebunkport's median home was built in 1982, with about 13 percent of units predating 1940 and 29 percent predating 1960 -- a mix of early-1900s shingle-style cottages in the Cape Arundel Summer Colony Historic District alongside newer coastal construction. Those older cottages are prime candidates for a heat pump retrofit that extends comfortable use into the shoulder seasons.
Water Supply and Drains in Kennebunkport
Public water comes from the Kennebunk, Kennebunkport & Wells Water District, drawing from the Branch Brook watershed, while sewage is collected and treated by the town's own Wastewater Department at a plant on Recreation Way -- a town department rather than a separate district, unlike some of its neighbors. That town-run system runs nearly 100,000 feet of gravity sewer and dozens of pump stations.
Getting to Know Kennebunkport
Kennebunkport was first incorporated in 1653 as Cape Porpus, renamed Arundel in 1701, and finally took its current name in 1821 to reflect a growing shipbuilding and trading economy. Walker's Point, the Bush family's summer estate here, has hosted world leaders including Margaret Thatcher and Mikhail Gorbachev.
Cape Porpoise remains a working fishing harbor village within the town, keeping its own restaurants, church, library and commercial fleet. The Cape Arundel Summer Colony Historic District, running from Chick's Creek to Walker's Point, is full of early-1900s shingle-style summer cottages that still define much of the town's coastline.
Local & Independent — Not a Franchise
There is no franchise behind Aces Highlands — just a Portland-based crew that works Kennebunkport under its own name. Every technician is paid to solve the problem in front of them, not to hit an upsell quota. 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 Kennebunkport.
Tankless Water Heaters DetailsAll Services in KennebunkportService Info
Codes & Permits for Tankless Water Heaters in Kennebunkport
In Kennebunkport, plumbing permits come from the Local Plumbing Inspector at the Town of Kennebunkport Planning and Development Department (Code Enforcement Office) (6 Elm Street, Kennebunkport, ME 04046, (207) 967-1602 (Code Enforcement Officer); (207) 967-4243 (Town Office main)). With 3,684 residents, Kennebunkport is under the 4,000-resident line at which Maine requires a town to enforce MUBEC. Home to Walker's Point, the Bush family's summer estate, within the Cape Arundel Summer Colony Historic District of early-1900s shingle-style cottages running from Chick's Creek to Walker's Point.
- Replacing or installing a water heater is plumbing work that falls under the town's Local Plumbing Inspector permitting and inspection process. mainelegislature.org
- 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
- 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 Kennebunkport
- Kennebunk, Kennebunkport & Wells Water District (KKW) covers most of Kennebunkport (Branch Brook watershed, a groundwater-fed aquifer/stream system on the Kennebunk/Wells town line that has supplied the district for over 100 years) — homes still on a private well get the well and pressure tank looked at as part of the same visit.
- The swap is permitted through the Town of Kennebunkport Planning and Development Department (Code Enforcement Office), the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
Kennebunkport's compact downtown commercial square, lined with shops beside the Kennebunk River.
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.
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.
Jacqueline Vogeley
2 weeks ago
Great experience! Open, honest and efficient 🙌🏽 Job well done
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 Kennebunkport
Aces Highlands handles HVAC, plumbing, and electrical for Kennebunkport homeowners. Here is more of what we do nearby.
Water Heater Repair in Kennebunkport
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Outlet & Switch Installation in KennebunkportLighting Installation in Kennebunkport
Lighting Installation in KennebunkportEV Charger Installation in Kennebunkport
EV Charger Installation in KennebunkportTankless Water Heaters in Nearby Towns
Need Tankless Water Heaters in Kennebunkport?
Call our Kennebunkport team or get a free quote. We will get you scheduled and take care of it right the first time.
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39You can also count on our technicians for…
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
Service Areas
48Neighbors across the region trust us, including in…
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
8Get expert tips from our writing, including…
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
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8Helpful pages to start with include…
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