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TRUSTED BY DEDHAM, ME HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon39
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Dedham - 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 Dedham, ME and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"This father/son team is awesome. They extremely professional and knowledgeable. They were on time, fast, efficient, and cleaned up all debris. Nate took care of the paperwork, rebate, and payment through Home Advisor after the install. I highly recommend their service."
indoor unit
outdoor unit
outdoor
Response time10 mins
Response rate100%
Recommended by97%of homeowners
GM Electrical LLC
5.0(
22
)
Electrical Baseboard or Wall Heater - Install

Serving Dedham, ME and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I’ve been living through a full-blown renovation nightmare, and the one bright spot in it all has been my electrician. From day one, he has been professional, reliable, and consistently the most dependable person I’ve worked with during this entire process. He shows up when he says he will, takes the time to explain what’s going on in a way that makes sense, and his work has been nothing short of top-notch. When everything else in a renovation feels chaotic, having someone you can truly count on makes all the difference. If you’re looking for an electrician who actually cares about the quality of their work and their customers, look no further. This is the kind of professional you want on your side."
Response time2 days
5 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Aeroseal and Home Performance
Aeroseal and Home Performance
4.2(
33
)
Air Ducts & Vents - Clean

Serving Dedham, ME and surrounding areas

In business since 2017

Free estimates

Small jobs welcome

"My son's allergies flare up whenever we spend time in our summer house in midcoast Maine. (He is allergic to dust mites.) The house is pretty clean, so I suspected the ducts might be part of the problem. Aeroseal showed me what the inside of the ducts looked like before they started cleaning, and it was shocking! We've only owned the house for three years; I'm willing to bet that the ducts haven't been cleaned in decades. It was money well spent and I am a happy customer."
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 octagon-restoration
octagon-restoration
4.7(
96
)
Air Ducts & Vents - Clean

Serving Dedham, 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 FAQs, answered by experts

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

Your central A/C unit should be professionally serviced and inspected at least once a year to ensure it operates properly and efficiently. This is best done before the peak cooling season. A full-service inspection by a qualified pro will typically include checking safety components for issues like carbon monoxide leaks, verifying cooling components and coolant levels, and inspecting electrical parts like fuses and wiring. Regular servicing enhances efficiency, mitigates potential problems, and maintains optimal performance. Because AC systems contain hazardous refrigerant, professional handling is essential.

In most cases, homeowners insurance will cover an AC replacement if it was damaged due to a covered peril—such as theft, fire, or storms. So, if your air conditioner needs replacing due to regular wear and tear, your insurance company probably won’t pay for a new one. However, home warranties often cover HVAC repairs and replacements.

You can air condition your Arizona room by extending your home’s existing HVAC system or adding a ductless mini-split system. Arizona rooms that have full windows rather than screens only are a better choice for air conditioning—screens will let the cold air out as fast as the air conditioner can make it. 

The cost to replace an AC unit averages around $5,900, with a typical range between $3,900 and $8,020. The final price depends on several factors, including the type and size of the air conditioner, its efficiency rating, your geographic region, and labor costs for installation. Smaller units like portable and window ACs are much less expensive, costing between $90 and $550, compared to central or ductless systems. If your current unit is less than 10 years old, repairing it may be more cost-effective than a full replacement.

The Dedham, 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.