4.2 
34 *The Angi rating for Heating And Air Conditioning Service companies in Old Town, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Old Town, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on January 19, 2026
Serving Old Town, ME and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"Was nice to hire experienced labor for once. Good experience."
+36
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."
Serving Old Town, ME and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Very friendly and knowledgeable electrician. Would recommend him to take care of any electrical needs."
Serving Old Town, ME and surrounding areas
Approved
In business since 2015
Emergency services offered
Credit card accepted
"Completed work in a timely manner and to my exact specifications. Highly recommended."
Serving Old Town, ME and surrounding areas
Approved
In business since 2000
Free estimates
Customers say: Quick response
"He is truly a great professional"
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.
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."
+13
Serving Old Town, ME and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"Great service, very prompt and was able to fix my electrical issue! Definitely will ask for any future electrical work!"
+2
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!"
+2
Serving Old Town, ME and surrounding areas
In business since 2020
Free estimates
Warranties offered
"Extremely Professionalâ ¦..Very knowledgeable..:It was nice to see a professional take Pride in his workmanship..:Thanks Martin Mechanicalâ ¦."
From average costs to expert advice, get all the answers you need to get your job done.
Get expert insights on radiant heating repair cost, including average prices, cost factors, and ways to save. Learn what impacts your radiant heating repair bill.
HVAC replacement costs depend on a lot of factors, like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
If certain rooms in your home run too hot or too cool, a duct booster fan may help with the issue. Learn the costs to expect from duct booster fan installation.
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.
What is an air source heat pump, and is it right for you? Air source heat pumps are an effective and efficient home climate control solution. Read on for more information.
Your air conditioning unit is a lifesaver during those blisteringly hot summer months, but common air conditioning mistakes may be increasing your energy bill and decreasing overall efficiency. Read on to learn how to avoid them.
