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TRUSTED BY OLD TOWN, ME HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon34
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Old Town - 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 Old Town, 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
Avatar for D&J Mechanical
D&J Mechanical
New to Angi
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace+2 more

Serving Old Town, ME and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

D&J Mechanical, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time20 mins
Avatar for Aeroseal and Home Performance
Aeroseal and Home Performance
4.2(
33
)
Air Ducts & Vents - Clean

Serving Old Town, 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 Old Town, 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

While both have advantages, a split system is generally cheaper than a ducted one. Because they are less invasive to install, the labor costs are lower, and they can be more energy efficient. But, a ducted system might be worth the investment if you run it more frequently. 

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.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

The cost of R32 refrigerant is about the same as the cost of R410A refrigerant, the most widely available type of refrigerant today. However, R32 systems use about 20% less refrigerant than R410A systems, making the refrigerant less expensive overall.

The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.

The Old Town, 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.