
AC Repair in Lewiston, Maine
Mini-Split, Heat Pump & Central AC · Diagnosed on the First Visit · Price Before We Start
- 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.
AC Repair for Lewiston Homeowners

When Lewiston homeowners need ac repair, Aces Highlands is the local team to call. We are based at 508 Riverside St Unit 1 in Portland — a short drive from Lewiston in Androscoggin County — so we respond quickly and know the homes, the weather, and the codes in your area.
When the cooling quits during a Maine heat wave, you need a technician who diagnoses on the first visit and quotes before starting. Aces Highlands repairs ductless mini-splits, heat pumps in cooling mode, and central air across Greater Portland.
Most Southern Maine cooling is a ductless mini-split or a heat pump in cooling mode, and failures follow a pattern: a weak capacitor, a clogged condensate drain, a dirty coil, a tripped breaker, or a slow refrigerant leak.
We service every major brand — Mitsubishi, Daikin, Fujitsu, LG, GE, and Hitachi — plus conventional central air condensers paired with a furnace. Our vans carry capacitors, contactors, condensate pumps, and common sensors, so most repairs finish in one visit.
If the unit is past 12 years, runs on phased-out R-22 refrigerant, or needs a compressor, we show you the numbers on replacement — an Efficiency Maine rebate on a new cold-climate heat pump can change that math.
Same-week appointments are the norm outside peak heat waves. Call (207) 670-8616, tell us what the unit is doing, and we will say whether it can wait or needs a same-day visit. Regular maintenance prevents most of these calls.
Why Lewiston Calls Aces Highlands
- Close enough to Lewiston for a fast response, local enough to know the town
- No scare tactics — just an accurate diagnosis and a price that holds
- Most requests land a visit within days, not the following month
- Licensed and insured — neighbors in Lewiston leave us reviews on Google
Lewiston Homes and What They Need
Lewiston's median home was built in 1957, with about 32 percent of the housing stock dating before 1940 and 54 percent before 1960 -- a mill-city profile concentrated in the tenement and triple-decker neighborhoods that grew up around the Bates Mill complex in the late 1800s and early 1900s. That density and age combination means plumbing work in older Lewiston buildings often has to account for shared walls and stacked units, not just a single-family layout.
Heating and Cooling in Lewiston
About 53 percent of Lewiston households heat mainly with fuel oil, 23 percent with utility gas, and 10 percent with electricity, per Census estimates, though Lewiston is not in Summit Natural Gas of Maine's published service area, so that utility-gas share likely reflects an older, more limited local distribution system rather than a modern buildout. Either way, a lot of Lewiston's oil-heated multi-unit buildings are strong candidates for a heat pump retrofit.

Getting to Know Lewiston
Lewiston grew up around Lewiston Falls on the Androscoggin River, which started powering the Bates Manufacturing Company's mill complex in 1852. For roughly three decades, Bates was Maine's single largest employer, and it stayed one of Lewiston's biggest employers well into the 20th century, a scale of industry that shaped the city's dense, mill-town neighborhoods.
The Androscoggin River still forms Lewiston's western border, separating it from twin city Auburn, and the two towns share more than a river: Lewiston draws its water through the jointly run Auburn Water District. That kind of shared infrastructure is common between the two cities, a legacy of how closely their industrial histories are tied together.
Local & Independent — Not a Franchise
Aces Highlands is a locally owned Portland, Maine company serving Lewiston — not a national franchise. Our technicians are not commissioned salespeople and nobody here is required to upsell you anything. Getting invited back is the only metric that matters here.
How Central Air Conditioning Works
- Condenser — outside, rejects heat picked up indoors
- Compressor — pressurizes the refrigerant gas
- Evaporator coil — at the furnace, absorbs heat from indoor air
- Blower — pushes air across the cold coil
- Cool air — delivered through the ducts
Homeowner Guide
Why Central AC Fails Mid-Summer (And What We Check First)
AC failures cluster on the hottest days for a mechanical reason, not bad luck — a system running at its rated limit for hours on end is when a marginal part finally gives out.
Read the Full GuideMore Heat Pumps & Mini-Splits
AC Repair is part of our full heat pumps & mini-splits lineup. Explore the details or browse everything we offer in Lewiston.
AC Repair DetailsAll Services in LewistonService Info
Codes & Permits for AC Repair in Lewiston
In Lewiston, plumbing permits come from the Local Plumbing Inspector at the Planning & Code Enforcement, City of Lewiston (27 Pine Street, Lewiston, ME 04240, 207-513-3000). With 37,121 residents, Lewiston is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Lewiston sits on the east bank of the Androscoggin River at Lewiston Falls (Great Falls), the water power that drew the Bates Manufacturing Company and four other mills starting in 1852; Bates Mill was Maine's largest employer for three decades.
- Anyone who connects or disconnects gauges or adds/removes refrigerant on a heat pump or air conditioner must hold EPA Section 608 technician certification; the credential does not expire once earned. epa.gov
- The electrical circuit that feeds a new heat pump or AC condenser needs an electrical permit, issued by the Electricians' Examining Board or the town's own electrical inspector, before the wiring is installed or altered. maine.gov
- Efficiency Maine offers rebates of up to $9,000 on qualifying heat pumps, but the equipment must be installed by an Efficiency Maine Residential Registered Vendor for the homeowner to receive the rebate. efficiencymaine.com
How Aces Highlands Handles AC Repair in Lewiston
- Because roughly 53% of Lewiston homes are already on heating oil, a AC repair usually means deciding how much of the heating load the new equipment should carry, not ripping out what's there.
- Every outdoor unit we set gets its own permitted circuit before it's wired in, and any refrigerant work is done under our EPA Section 608 certification.
- We flag which Efficiency Maine incentives apply to a AC repair before work starts, since the rebate only applies through a Residential Registered Vendor.
A 19th-century brick textile mill complex lining the Androscoggin River canal in downtown Lewiston, once the city's largest employer.
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 HVAC customers say
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.
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!
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.
AC Repair FAQs
How quickly can you repair my AC in Portland?
Outside of peak heat waves, most cooling repair calls are seen within a few days and often the same week. During a stretch of 90-degree days we prioritize homes with no working cooling at all. Call and tell us what the unit is doing — we will give you a realistic window, not a guess.
Do you repair mini-splits and heat pumps, or only central air?
All three. Most Southern Maine cooling is a ductless mini-split or a heat pump in cooling mode, and those make up the majority of our repair calls. We also service conventional central air condensers paired with a furnace and air handler.
My AC is low on refrigerant — can you just top it up?
A sealed system should never lose refrigerant, so a low charge means a leak. We can add refrigerant to get you through a heat wave, but we will tell you it is temporary. Finding and repairing the leak is the real fix and avoids paying for the same refrigerant every summer.
Should I repair or replace my air conditioner?
Repair a newer system with a single failed part. Replace when the unit is past 12–15 years, uses phased-out R-22 refrigerant, needs a compressor out of warranty, or has needed refrigerant more than one season. Efficiency Maine rebates on qualifying cold-climate heat pumps often tip the decision toward a new system that also heats.
Why does my breaker trip when the AC starts?
Usually a failing capacitor or a compressor drawing too much current on startup — both create a surge the breaker reads as a fault. It can also be a worn breaker or a shared circuit. Stop resetting it repeatedly; each trip stresses the compressor. We diagnose which it is on the first visit.
Do I need a permit for AC repair in Maine?
No. Repairs and part replacements on an existing system do not require a permit. Replacing the outdoor unit or installing a new system does involve electrical permitting and inspection, which we handle in-house as a licensed Maine electrical contractor.
More Services in Lewiston
Aces Highlands handles HVAC, plumbing, and electrical for Lewiston homeowners. Here is more of what we do nearby.
Boiler Installation in Lewiston
Boiler Installation in LewistonBoiler Repair in Lewiston
Boiler Repair in LewistonBoiler Maintenance in Lewiston
Boiler Maintenance in LewistonRadiant Floor Heating in Lewiston
Radiant Floor Heating in LewistonFurnace Installation in Lewiston
Furnace Installation in LewistonFurnace Repair in Lewiston
Furnace Repair in LewistonNeed AC Repair in Lewiston?
Call our Lewiston 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
48Neighbors across the region trust us, including in…
Guides & Tips
8Get expert tips from our writing, including…
Company
8Helpful pages to start with include…
Services
39You can also count on our technicians for…
Get a Quote in Lewiston
Request Service
Fill out the form below to request an estimate or schedule service.
“*” indicates required fields
Need it today?Call (207) 670-8616













