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Best heating and air conditioning pros near Lewiston, ME

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TRUSTED BY LEWISTON, ME HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon47
    Verified heating and air conditioning services reviews

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

Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Heat Pump - Install or Replace

Serving Lewiston, 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 LaPlante Electric, Inc.
LaPlante Electric, Inc.
4.2(
77
)
Heat Pump - Install or ReplaceHeat Pump - Install or Replace - For Business

Serving Lewiston, ME and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Techs were very nice. Took time to put mats down on my carpets to keep them clean. Explained how to operate the heat pump and gave suggestions on how to make it function most efficiently. Everything was cleaned up before they left, they even vacuumed! So glad I went with LaPlante for my heat pump! Bev"
Mitsubishi Heat Pump
Mitsubishi Heat Pump Condenser
Mitsubishi Ceiling Cassette
Mitsubishi Low Wall Unit
Response time3 days
Response rate90%
45 neighbors recently requested a quote
Avatar for Edge Energy
Edge Energy
5.0(
22
)
Ductless Mini-split Heating System - Install or ReplaceHeat Pump - Install or ReplaceCentral A/C - Install+2 more

Serving Lewiston, ME and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"I had a heat pump system installed this week with 3 heads. Despite bad weather, they arrived on time and installed the system. They were very good at answering questions and respectful of our property. I would recommend them and I have already. Alan"
Stand Mounted Condenser
Little Wing
Westbrook St.
Westbrook St.
Little Wing

+12

Response time1 day
Response rate94%
17 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Yes, high-efficiency models reduce environmental impact with lower energy use.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

You should use a breathable, weather-resistant cover with ventilation. It can be a top cover or a full cover that has mesh to allow airflow. A full, non-breathable cover can cause moisture to build up, leading to rust, frozen parts, and corrosion. A full cover also attracts unwanted critters, such as mice, that can damage the wiring and your unit. If you need to protect your AC unit from falling icicles, choose a sturdy top cover or piece of wood that prevents icicles from damaging your unit.

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

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

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