
Tankless Water Heaters in Eliot, Maine
Endless Hot Water · Space-Saving Design · 20+ Year Lifespan
- Google reviews
- Licensed & insured
- Since 2019
Efficiency Maine Registered Vendor- 100% Satisfaction Guarantee
Current offers & financing
See all coupons →Financing available
Finance up to 100% of your project with low monthly payments through our lending partners. Quick approval, no prepayment penalty.
Tankless Water Heaters for Eliot Homeowners

For tankless water heaters in Eliot, homeowners turn to Aces Highlands: a Portland-based crew (508 Riverside St Unit 1) that is minutes from York County and already familiar with the homes, climate and codes here.
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 Eliot Calls Aces Highlands
- A York County crew that already knows Eliot's streets and housing stock
- Diagnostics come first, upsells do not — the invoice matches the quote
- A short wait for a truck, not a long one — most jobs move fast
- Licensed, insured, and background-checked — neighbors in Eliot leave us reviews on Google
Eliot Homes and What They Need
Eliot's median home was built in 1979, with about a quarter of housing predating 1940, reflecting a town that grew substantially from roughly 2,500 residents in 1950 to over 6,700 by 2020. That range of construction eras means service calls here run from vintage farmhouse wiring to routine work on newer subdivisions.
Water Supply and Drains in Eliot
The Kittery Water District serves part of Eliot, and the town is actively extending municipal water and sewer along the Route 236 corridor; areas outside those extensions are believed to rely on private wells and septic. On a property that is not yet on the extension, plumbing work often starts with confirming exactly what utility, if any, actually reaches the lot.

Getting to Know Eliot
Eliot incorporated as its own town on March 1, 1810, and today borders three New Hampshire communities -- Dover, Portsmouth and Newington -- across the Piscataqua River, along with South Berwick and York on the Maine side. The town is also home to Green Acre, a historic Bahá'í school property.
Eliot's population has grown steadily from around 1,650 residents in 1810 to over 6,700 by 2020, with most of that growth landing in the second half of the 20th century. The town is now extending municipal water and sewer service along the Route 236 corridor under a tax-increment financing district.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Eliot — not a national franchise. Technicians are not on commission, so the recommendation you get is the one your house actually 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 Eliot.
Tankless Water Heaters DetailsAll Services in EliotService Info
Codes & Permits for Tankless Water Heaters in Eliot
In Eliot, plumbing permits come from the Local Plumbing Inspector at the Eliot Code Enforcement Office (Shelly Bishop, Code Enforcement Officer / Health Officer) (1333 State Road, Eliot, ME 03903, 207-439-1813 Ext. 110). With 7,146 residents, Eliot is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Eliot borders the Piscataqua River and Sturgeon Creek (shoreland zoning applies to near-water work).
- 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 Eliot
- Kittery Water District (serves part of Eliot; remainder believed to be on private wells) covers most of Eliot — 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 Eliot Code Enforcement Office (Shelly Bishop, Code Enforcement Officer / Health Officer), the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
A residential stretch of Route 103 in Eliot, near the town's village area.
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.
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
Susan Donegan
3 months ago
We have called Samuel for our electrical needs over the last few years and have always been impressed with professional and courteous attitude — installing extra outlets, installing new lights and ceiling fans, our whole house generator, charger for the electric car, even the hot tub!!! His price was fair, and never disappointed when work was completed.
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 Eliot
Aces Highlands handles HVAC, plumbing, and electrical for Eliot homeowners. Here is more of what we do nearby.
Water Heater Repair in Eliot
Water Heater Repair in EliotPanel Upgrades in Eliot
Panel Upgrades in EliotWiring & Rewiring in Eliot
Wiring & Rewiring in EliotOutlet & Switch Installation in Eliot
Outlet & Switch Installation in EliotLighting Installation in Eliot
Lighting Installation in EliotEV Charger Installation in Eliot
EV Charger Installation in EliotTankless Water Heaters in Nearby Towns
Need Tankless Water Heaters in Eliot?
Call our Eliot 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 ReviewsServices
39You can also count on our technicians for…
Service Areas
48Neighbors across the region trust us, including in…
Guides & Tips
8Get expert tips from our writing, including…
Company
8Helpful pages to start with include…
Get a Quote in Eliot
Request Service
Fill out the form below to request an estimate or schedule service.
“*” indicates required fields
Need it today?Call (207) 670-8616












