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Best heating and air conditioning pros near Waterville, ME

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TRUSTED BY WATERVILLE, ME HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon36
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Waterville - Updated Nov 2026

Avatar for Dave's Mechanical Maintenance
Dave's Mechanical Maintenance
4.8(
40
)
Ductless Mini-split Heating System - Install or Replace

Serving Waterville, ME and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Before using this company, I did my research. They were the best priced, fastest to get an install and responded quickly. I would highly recommend them if you need a heat pump in the Bangor or Ellsworth area! The Install was so simple and didn't take long at all. Nate made sure I understood how to use it and double checked his work on site. I have been building a house and they were by far the easiest contractors to work with. Their price was almost half of what I was quoted elsewhere.. so I will be having 2 more installed coming up! I also love that they will come back whenever needed and will do all the cleanings themselves. I highly recommend them!"
indoor unit
outdoor unit
outdoor
Response time10 mins
Response rate100%
Recommended by97%of homeowners
Avatar for Heat Pumps of Maine
Heat Pumps of Maine
4.8(
17
)
Ductless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or ReplaceHeat Pump - Install or Replace+1 more

Serving Waterville, ME and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Incredibly professional, always happy to answer questions. Unlike other places that install and you never hear from again, Cam, David, and crew make sure your heat pump stays in tip top shape with yearly cleanings. They even offered to clean a unit that another contractor put in a year prior who refused to come clean it. I got quotes from over 8 different companies for my second heat pump, and Heat Pumps of Maine were a clear step above the rest."
Heat Pump
Heat Pump
Heat Pump
Heat Pump
Response time1 day
Recommended by85%of homeowners
Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Heat Pump - Install or Replace

Serving Waterville, ME and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I needed my water heater changed out so I reached out to swb and Seth was able to give me a same day quote and give me a time frame on when it could be completed. Got done in a timely manner and very professional work. Definitely will keep using this company for future plumbing/hvac needs."
New condensate line property piped into existing house sewer to code
1 1/2” water mains
3 zone heat pump install
Install condensate pump and neutralizer to bring existing boiler upto code.
1 1/2” water mains insulated after we installed them.

+10

Response time1 day
Response rate100%
31 neighbors recently requested a quote
Avatar for McLardy Electric
McLardy Electric
4.8(
29
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - Repair

Serving Waterville, ME and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

With nearly 30 years experience, McLardy Electric proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

Motor rewind
Motor rewind
Motor rewind
Service upgrade
Heating/ac system

+3

18 neighbors recently requested a quote
Recommended by92%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

The decision to put your AC unit on the roof or ground depends on the climate in your area, the roof shape, accessibility, and budget. If you live in a warm climate or don’t have existing ductwork, it’s likely best to stick to a traditional AC unit that sits on the ground. However, if you lack yard space, live in a mild climate, and have easy access to the roof, your home may benefit from a rooftop AC unit. 

You can buy R-22 refrigerant for your home air-conditioning system through your local AC repair specialist, who can also refill your R-22 system as needed. You may find that the cost of R-22 has gone up due to shortages as the EPA banned this refrigerant. Ask your pro to inspect your system for any leaks or issues.

While Freon is mostly odorless, a Freon leak will produce a faint chloroform-like smell. Some people find that Freon's odor has a subtle sweetness to it. Some telltale signs of a Freon leak beyond odor include ice crystals on your evaporator coil, bubbling sounds, and hissing noises.  

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

A dirty air conditioning coil can cause your unit to work overtime, leading to reduced efficiency, higher energy use, more wear and tear, and possible ice buildup. If the coils corrode, refrigerant can leak, causing damage, possible mold growth, and an expensive repair bill. By cleaning your AC coils once a year, you’ll have a more efficient unit that’s likely to last longer.

The Waterville, ME homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.