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Best heating and air conditioning pros near Orrington, ME

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TRUSTED BY ORRINGTON, ME HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon37
    Verified heating and air conditioning services reviews

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

Avatar for MAC Heat Pumps
MAC Heat Pumps
4.6(
33
)
Heat Pump - Install or ReplaceDuctless Mini-split Heating System - Install or ReplaceHeat Pump - Install or Replace - For Business+3 more

Serving Orrington, ME and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"The crew sent was on time, professional, friendly, efficient, clean and organized. The electrician was the first to arrive and installed the new breakers to the panel and installed the wire for the condenser unit and the wall mounted blowers. The crew installed two power head blowers, one for a large sunroom and another for the living room. The heat pumps are nearly silent yet powerful enough to do the entire first floor of our 3000 sq foot home. The entire install was done in one day and we were thrilled with the result. The estimator who came out took pictures and helped decide what the best options were according to our wishes and needs. This is what this company specializes in and they have it down to a science."
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance

+36

Response time1 day
Response rate93%
4 neighbors recently requested a quote
Avatar for Dave's Mechanical Maintenance
Dave's Mechanical Maintenance
4.8(
40
)
Ductless Mini-split Heating System - Install or Replace

Serving Orrington, ME and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"We have 2 heat pumps which we have serviced every 2 years. I was going to call the company that had installed our heat pumps until a friend told me that Daveâ s Mechanical Maintenance had installed his heat pump and had done a great job. I called Daveâ s and scheduled an appointment for service. Dave Curtis came to our house on the day scheduled and he arrived on time. He was very efficient and cleaned and service both units. One unit had not been functioning at full efficiency but Dave diagnosed and fixed the issue in no time. I highly recommend, if you need service or need a new heat pump installed, calling Daveâ s Mechanical Maintenance. They are efficient, friendly and provide exceptional customer service at a very reasonable price."
indoor unit
outdoor unit
outdoor
Response time10 mins
Response rate100%
Recommended by97%of homeowners
On The Hill Plumbing LLC
New to Angi
Heat Pump - Install or Replace

Serving Orrington, ME and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time2 days
8 neighbors recently requested a quote
Avatar for Wide Horizons HVAC/R
Wide Horizons HVAC/R
4.2(
65
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+3 more

Serving Orrington, ME and surrounding areas

In business since 2020

Emergency services offered

Warranties offered

"Joseph responded to our call within minutes and arrived within 2 hours. Our AC unit needed to be replaced. The unit was ordered, expedited, and arrived on time. Joseph arrived on time and installed unit in record time! He was polite, knowledgeable, and the area was clean and ready to cool our house in 2 hours. I would highly recommend Joseph for all HVAC projects."
Response time1 day
Response rate90%
Recommended by89%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

For the most part, you should leave your AC fan in “auto” mode so that it only runs during a heating or cooling cycle. Keeping it in this position uses less energy, which equals lower utility bills. However, there are some situations where it’s better to leave your AC fan on, including if you have allergies or there are lots of people in your home.

Here’s the cost formula to find out how much it’ll cost you to run a window air conditioner in your home:  Watts * (hours used) / 1,000 * (Local kWh) = daily cost of running a window unit. If you need help calculating the cost of running your window AC unit, consult an AC repair or installation pro for an accurate estimate.

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

The Orrington, 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.