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TRUSTED BY DAYTON, ME HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon161
    Verified heating and air conditioning services reviews

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

Avatar for HVAC Solutions 207, LLC
HVAC Solutions 207, LLC
4.9(
72
)
Gas Furnace / Forced Air Heating System - RepairOil Furnace / Forced Air Heating System - RepairCentral A/C - Service or Repair+4 more

Serving Dayton, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Ryan responded to my request for a quote and left me a text with all his contact info. I called him and explained my furnace delemma. He scheduled a home visit for the first thing the next day. He called me with an ETA to let me know he was on his way. Ryan greeted me with his business card and went straight to work intensifying the problem and getting the necessary parts to get us back in business. Ryan kepts my wife and I updated on costs and timing every step of the way. Once our furnace was operational again he gave us quotes on updating our 20 year old HVAC system with great options and recommendations. I appreciated that Ryan never spoke down to us or used fear tactics. I would highly recommend HVAC Solutions 207 to do honest, timely and professional work on your home heating and cooling systems."
Install
Install
Response time5 hrs
Response rate96%
12 neighbors recently requested a quote
Avatar for Aire Serv of Southern Maine
Aire Serv of Southern Maine
4.6(
38
)
Central A/C - InstallHeat Pump - Install or ReplaceGas Furnace / Forced Air Heating System - Install+24 more

Serving Dayton, ME and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"These guys are the best! They taught me so much about my home HVAC system, both the pros and cons. They take so much pride in the results they provide it is almost as if they were the ones that installed the system in the first place even though they weren't although i wish they had because we definitely would not be having the issues we are having had these guys been in charge during the installation."
Additional Photos
Commercial Heating and Cooling
Indoor Air Quality
19 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
89
)
Ducts & Vents - Install or ReplaceBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Dayton, ME and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"We have been a Palmer customer for 6 years. The front office and the technicians has always been great to work with. We have been using their AC and Heating Service Plan and on automatic oil and propane fill for years and we have never had an issue. My most recent experience was today for the AC Service Plan. The technician (David) was very polite, experienced, knowledgeable and respectful of our time and home. It’s always a great experience to have maintenance conducted in you home and have the technicians give you expert advice on your heating and AC system. Our AC system is well over 25 years old and still running strong thanks to Palmer. I continue to be impressed with Palmer and will remain a customer for the foreseeable future!"
Additional Photos
Additional Photos
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Additional Photos

+11

1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Northwoods HVAC
Northwoods HVAC
5.0(
6
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+10 more

Serving Dayton, ME and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"Josh installed a new water heater, provided us with instructions on proper use and maintenance and has serviced it since. He is honest, thorough, and trustworthy. He also maintains my dad’s HVAC needs too. He has come out for emergency calls too. Suggest things to prevent future additional repair expenses. His prices are reasonable, especially for the personal, friendly customer service and service provided. I would highly recommend Northwoods HVAC."
Roman Electric Heating and Cooling
3.8(
162
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceThermostat - Repair or Reprogram+2 more

Serving Dayton, ME and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"Mike came out to replace a thermostat on an evening to accomodate my work schedule. Also hired a second time to fix gas leak at my heating unit and replace hardwired smoke detectors. Both times he was clear and communicated when he would be onsite, and was diligent on researching what issues arose in order to complete project, including ordering. Mike was kind and curteous and would gladly use him for future hvac/ electrical needs in the future."
Response time2 days
7 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Heat Pump - Install or Replace

Serving Dayton, 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 Heritage Home Service
Heritage Home Service
4.2(
1,356
)
Gas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - InstallCentral A/C - Install+4 more

Serving Dayton, ME and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"I am a big fan of Heritage. We needed to replace our broken furnace and I got quotes from five different HVAC companies, all of which had many 5-star reviews. Heritage was the best, by far, for a few reasons: Dexter, the HVAC project manager from Heritage, was professional and patient. He answered all of my questions, applied no sales pressure, helped me customize the job to my budget and needs, and even brought us space heaters to keep the house warm since we had no heat in winter. Heritage was one of only two companies to actually take detailed measurements of my home before recommending a furnace size and submitting an estimate. Three of the companies just eye-balled it and recommended furnaces that were twice the size of what Heritage recommended. Some of them told me I had to replace my entire heating and cooling system or I would have major problems (which Dexter debunked). If an HVAC project manager does not bother to measure your house before recommending a furnace size, you should be concerned. Dexter helped me every step of the way with the HEAT loan and furnace rebate process. Dexter worked around my busy work schedule and communicated in person, phone, email, and text, depending on what was best for my workday. After the furnace was installed, the house got uncomfortably dry and we realized we needed to add a whole-house humidifier (which Dexter had recommended originally). Heritage was able to come out the morning after we called and put in a humidifier and the house was comfortable within a day. The Heritage install and service guys (Fran, Bob) were professional, patient, and courteous from start to finish. The installation site was clean and well-labeled. They checked in with me and explained important items along the way. The Heritage office staff are always reachable and helpful with any scheduling, billing, or follow-up questions. The only drawback is they are definitely a premium brand and charge on the higher end for their work. They quoted higher than any of the other four companies. That said, I was able to negotiate the price and I was happy to pay a little extra for a job well done, a strong warranty, and professional service. Honestly, Heritage won me over and I will only use them in the future for my HVAC needs. They were transparent and professional and I never felt like I was getting hustled (unlike a few other big-name brands). Now I recommend Heritage to everyone I know."
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

119 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 174
Heating and Air Conditioning FAQs, answered by experts

It depends on the type of AC unit and the extent of the mold growth. For example, if you have a small amount of mold in your central air conditioner, it’s worth cleaning it to protect your HVAC system and your health. In situations like these, you can often remove the mold yourself in a couple of hours. On the other hand, if you have a portable AC unit with a severe mold problem, it makes more sense to buy a new one. On average, replacing a portable AC unit costs $100 to $500.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

Freon will go in the refrigerant lines near the back of your AC unit. Look for small ports with caps on a thin copper line—the Freon goes into those ports. You are best off hiring a licensed HVAC professional who can complete the job safely and correctly.

The Dayton, 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.