
Tankless Water Heaters in Westbrook, Maine
Endless Hot Water · Space-Saving Design · 20+ Year Lifespan
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Tankless Water Heaters for Westbrook Homeowners

Westbrook 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 Cumberland 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 Westbrook Calls Aces Highlands
- Close enough to Westbrook for a fast response, local enough to know the town
- Diagnostics come first, upsells do not — the invoice matches the quote
- Same-week scheduling for most service calls
- Licensed, insured, and background-checked, with a track record of Google reviews from real jobs
Westbrook Homes and What They Need
Westbrook's housing splits cleanly into two eras. Census estimates put the median home at 1975: about a quarter of units date from before 1940, the old mill-town core along the Presumpscot, while roughly a quarter were built since 2000 as the city grew faster than any other in Maine between 2010 and 2020. Fewer than half of homes are single detached houses, about a fifth of units are in buildings with five or more apartments, and about 6 percent are mobile homes, a higher share than most nearby towns. Neighborhoods such as Cumberland Mills, Frenchtown and Deer Hill carry older two- and multi-family houses, while newer apartments and subdivisions fill in toward Prides Corner and the edges of town. That older half often has aging drain stacks and supply piping, and clearing old drain lines is a routine part of keeping it working.
Water Supply and Drains in Westbrook
Most of Westbrook is on public water and sewer. The Portland Water District supplies water from Sebago Lake and also treats the city's wastewater at the Westbrook Regional Wastewater Treatment Facility, which takes flow from Westbrook and parts of Gorham and discharges to the Presumpscot River; the city's Wastewater Division maintains local collection lines. Under city rules, the service line from the house to the main is the owner's responsibility, and in older neighborhoods those laterals are often decades-old clay or cast iron. The city has also campaigned against wipes and grease in drains, which are frequent causes of backups in older pipe. With low vacancy and many rental units, water heaters in multi-family buildings work hard. A tankless water heater can save space in a crowded basement where gas is available.

Getting to Know Westbrook
In January 2019, a giant spinning disk of ice roughly 300 feet across formed on the Presumpscot River in downtown Westbrook and made headlines around the world — news crews from as far away as Europe and Japan covered it, and it has reappeared in later winters. Westbrook's identity as a mill town goes back much further: the paper mill S.D. Warren bought in 1854 still operates today under Sappi.
Generations of mill workers built Westbrook's neighborhoods, which is why so many local homes are sturdy older houses with aging mechanicals. Panel upgrades, boiler swaps, and heat pump retrofits in that housing stock are some of our most common Westbrook calls.
Local & Independent — Not a Franchise
Aces Highlands answers to Westbrook homeowners directly, not a franchise office somewhere else in the country. Our techs are paid to do the job right, not to upsell — no commission structure pushes them toward extra work. Earning the next call, not hitting a sales target, is the entire business plan.
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 Westbrook.
Tankless Water Heaters DetailsAll Services in WestbrookService Info
Codes & Permits for Tankless Water Heaters in Westbrook
In Westbrook, plumbing permits come from the Local Plumbing Inspector at the City of Westbrook Code Enforcement Department (2 York Street, Westbrook, ME 04092, 207-854-0638). With 20,400 residents, Westbrook is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Fuel oil/kerosene is the dominant home heating fuel (48.9% of occupied units) versus utility gas (19.3%), pointing to meaningful oil-to-gas/heat-pump conversion demand.
- 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 Westbrook
- Most Westbrook homes are on Portland Water District water from Sebago Lake; on a private well, we check the pressure tank and water quality alongside the tankless water heaters.
- Northern Utilities, Inc. d/b/a Unitil reaches parts of Westbrook, 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 City of Westbrook Code Enforcement Department, the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
The city's municipal building on York Street in Westbrook's Cumberland Mills 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.
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!
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!
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 Westbrook
Aces Highlands handles HVAC, plumbing, and electrical for Westbrook homeowners. Here is more of what we do nearby.
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Need Tankless Water Heaters in Westbrook?
Call our Westbrook team or get a free quote. We will get you scheduled and take care of it right the first time.
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