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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 Castine, 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
On The Hill Plumbing LLC
New to Angi
Heat Pump - Install or Replace

Serving Castine, 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
7 neighbors recently requested a quote
Avatar for Aeroseal and Home Performance
Aeroseal and Home Performance
4.2(
33
)
Air Ducts & Vents - Clean

Serving Castine, ME and surrounding areas

In business since 2017

Free estimates

Small jobs welcome

"I called David Athas for a quote to get a dryer vent installed. He called me back the same day and set an appointment for the next day. He arrived on time and gave me several different options on where I could install the vent. He recommended someone to do the plumbing. Both men were professional, on time and completed the work as promised. I would recommend David 100% Vent and ductwork do not come up as an option as to job done, which is why I had to pick handyman however David is in fact a HVAC vent and duct professional."
Insulation/vapor barrier
Insulation/vapor barrier
Insulation/vapor barrier
Insulation/vapor barrier
Insulation/vapor barrier

+13

Response time2 days
Recommended by87%of homeowners
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 Castine, 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
Avatar for octagon-restoration
octagon-restoration
4.7(
96
)
Air Ducts & Vents - Clean

Serving Castine, ME and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I called Octagon the day after we had an upstairs water leak. The next day, Octagan had scheduled a technician to assess the damage and set up the mitigation solutions to dry out the damage before mold could set in. Everyone from Octagon was friendly, professional and very responsive. If you need a fast, reliable and effective response, you will find it with Octagon!"
Water extraction.
Octagon vehicles
Drying structure damaged by water.
MOLD REMEDIATION
Dirty air duct.

+2

Response time6 hrs
Response rate100%
Recommended by90%of homeowners
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Heating and Air Conditioning questions, answered by experts

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

No, you should not run an air conditioner with a Freon leak. If you think your AC unit is leaking refrigerant, shut it off immediately. When you keep using a leaky air conditioner, it could damage the unit and release more refrigerant. After turning off the AC, have an HVAC pro come take a look at the unit.

Ceiling fans can be a great way to cool your home without the expensive utility bill of running an air conditioner. Plus, ceiling fans can sometimes run in both directions, pushing hot air down in winter and pulling cold air up in summer. With that said, air conditioning might be the only thing that helps if you live in a very warm climate.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

The cost to replace an AC evaporator coil is typically between $600 and $2,500, with an average cost around $1,300 to $1,350. The price of the coil itself can range from $550 to $1,100, depending on the brand, size, and style, with professional labor adding around $700. Replacing a condenser coil is generally less expensive, costing about $800. Because this repair involves handling refrigerants, it requires a licensed AC professional. Regular inspections, which cost between $200 and $600, can help prevent costly coil replacements.

The Castine, 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.