
Tankless Water Heaters in Saco, 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 Saco Homeowners

Saco sits in York County, part of the territory Aces Highlands covers out of 508 Riverside St Unit 1 in Portland every week — so a call for tankless water heaters gets a technician who already knows the local housing and codes, not a first-timer.
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 Saco Calls Aces Highlands
- Close enough to Saco for a fast response, local enough to know the town
- You get the real problem and a firm number, not a pitch for extras
- Most calls get on the schedule the same week you reach out
- Licensed, insured, and background-checked, and reviewed by real customers on Google
Saco Homes and What They Need
Saco's housing stock is newer than many of its York County mill-town neighbors: the median home was built in 1982, and only about 22 percent of units predate 1940, with roughly 32 percent predating 1960. That newer mix is one reason we see more calls for routine system upkeep here than for full rewiring jobs.
Water Supply and Drains in Saco
Saco shares its public water system with Biddeford: the Maine Water Company's Biddeford-Saco Division draws its entire supply from the Saco River. The city's own Water Resource Recovery Department treats wastewater at a plant on Front Street, licensed for more than 4 million gallons a day. On riverfront and Camp Ellis properties, a sewer line inspection is a smart step given how much the shoreline here has shifted over the decades.

Getting to Know Saco
Saco was settled in 1631 and cycled through a few names over the centuries, including Winter Harbor and Pepperrellborough, before settling on Saco in 1805 and becoming a city in 1867. It elected its first female mayor, Jodi MacPhail, in November 2023.
The city's York Manufacturing Company, once a major textile employer, closed for good in 1958, and Saco has grown well beyond its mill-town roots since -- it's now part of the Portland-South Portland-Biddeford metro area and home to Thornton Academy and Ferry Beach State Park.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Saco — not a national franchise. Nobody on our crew works on commission, so there is no incentive to sell you more than the job needs. Getting invited back is the only metric that matters here.
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 Saco.
Tankless Water Heaters DetailsAll Services in SacoService Info
Codes & Permits for Tankless Water Heaters in Saco
In Saco, plumbing permits come from the Local Plumbing Inspector at the Saco Code Enforcement Department (300 Main Street, Saco, ME 04072, (207) 284-6983). With 20,819 residents, Saco is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Saco's Camp Ellis Beach has experienced significant, well-documented erosion linked to a 19th-century Army Corps of Engineers jetty built at the mouth of the Saco River.
- 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
- Replacing or installing a water heater is plumbing work that falls under the town's Local Plumbing Inspector permitting and inspection process. 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 Saco
- Most Saco homes are on Maine Water Company – Biddeford & Saco Division water from Saco River (shared surface-water source with Biddeford; the same system also supplies Old Orchard Beach and the Pine Point area of Scarborough); on a private well, we check the pressure tank and water quality alongside the tankless water heaters.
- Unitil (Northern Utilities) reaches parts of Saco, 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 Saco Code Enforcement Department, the relief valve gets a proper gravity discharge line, and any gas connection is made under our Maine Fuel Board license.
Saco's city hall on Main Street in the downtown commercial district, a short walk from the Saco River falls.
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 Saco
Aces Highlands handles HVAC, plumbing, and electrical for Saco homeowners. Here is more of what we do nearby.
Water Heater Repair in Saco
Water Heater Repair in SacoPanel Upgrades in Saco
Panel Upgrades in SacoWiring & Rewiring in Saco
Wiring & Rewiring in SacoOutlet & Switch Installation in Saco
Outlet & Switch Installation in SacoLighting Installation in Saco
Lighting Installation in SacoEV Charger Installation in Saco
EV Charger Installation in SacoTankless Water Heaters in Nearby Towns
Need Tankless Water Heaters in Saco?
Call our Saco 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 ReviewsCompany
8Learn more about how we work, starting with…
Services
39Our team also covers related services across Greater Portland, such as…
Service Areas
48You will find our trucks in communities including…
Guides & Tips
8We share practical advice on our blog, including…
Get a Quote in Saco
Request Service
Fill out the form below to request an estimate or schedule service.
“*” indicates required fields
Need it today?Call (207) 670-8616












