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From the greenery of spring to the changing of the colors in fall, the splendor of Maine’s four seasons is one of the best aspects of life in New England. But when the seasons come in, they come in like a lion and out like a lamb. Summers can be sweltering, with long heatwaves and humid weather. It’s the worst time of the year for your air conditioner to break down.

No matter if this is your first air conditioning system or a replacement of an older model, your family deserves to have a comfortable home all season long. When air conditioners break, your home becomes hot and humid, which can be unhealthy and hazardous for your family and pets.

Our certified and trained HVAC experts are ready to help you get back to normal when the air conditioning is no longer blowing cold. We are certified to work with several brands in homes with air ducts and ductless homes, and in many cases can complete your air conditioner installation as soon as the next day.

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FAQs

  • Heritage Installs Multiple Types of AC Systems

    No two houses are the same in New England, meaning each space needs a unique air conditioning solution. When you call Heritage for a free consultation, our project managers will work with you to inspect your home and determine the right type of system for your comfort and budget.

  • Heritage works on all major makes and models of home air conditioners, including:

  • How to Choose The Best Air Conditioner for Your Home

    In terms of air conditioners, there is no “one size fits all” solution for every home. All living spaces are unique, and require careful consideration to find the right option to keep you comfortable all summer long. When you call Heritage, we begin with a free consultation to determine which type of solution is right for you. We start by inspecting your home, and recommend several options from there:

    Replace your current AC system: In some cases, it could make sense to replace your current air conditioning unit with something similar. Our experts will come out to your home for free and go through your home to determine if a straight replacement is best, or if you could benefit from a different type of air conditioner.

    Evaluate the size of your home: Not every system is fitted for every home. One of the first things our project managers will consider is the size of your home to see what kind of air conditioner may work best throughout the summer months. In some situations, you might want to use different units for different parts of the home, or create zones with a ductless mini-split system.

    Consider your air conditioning usage: Do you have young people, the elderly, or pets living in your home? If so, you may be running your air conditioning for longer hours throughout the summer months. Based on how much you plan on using your system, we’ll recommend the right one for your anticipated workload.

    Inspect existing ductwork: A central air conditioning system requires your home to have built in air ducts to distribute cold air effectively. However, older homes across New England may not have a central HVAC system already installed and available. If you don’t have existing ducts in your home, a ductless system may be the best solution to keep you cool and comfortable.

    Is energy efficiency important? The more you use your air conditioning system, the more energy you will be using throughout the summer months – meaning your energy costs will rise as well. If you plan on regularly using your air conditioning, our experts can recommend the most energy efficient options and help you determine just how much you could save with a new air conditioner installation.

    Create a solution within your budget: Having a comfortable home shouldn’t require you to break your overall budget. Our project planners and technicians will work with you to find the right solution that keeps your home cool and work within your budget. Heritage also offers financing options to make sure you have everything available to get the system you need.

  • What Are the Signs I Need to Replace My Air Conditioner?

    If you maintain your air conditioner well and replace parts before they fail, a good system can last 15 years or more. However, all mechanical systems are subject to fail over time, and your air conditioner isn’t exempt from the rule. Eventually, it will get more expensive to maintain an old system instead of replacing it with a new unit.

    When it’s time to consider repairing an old system against getting a new one, here are the top four issues to think over:

     

    • Air conditioning system age: The best maintained systems are designed to last up to 20 years. If your air conditioner is getting older (between 10 and 20 years old), you may want to start considering a new unit. Our technicians can test how well your air conditioner is working today, and help you determine if the time is right for a new system.
    • Current air conditioner performance: As air conditioning systems age, they slowly become less efficient and have to work harder to provide the same amount of cooling. Without annual maintenance, this breakdown can happen even faster. If you’re spending more on repairs and energy bills, it could be time for a new AC unit.
    • Repair cost and frequency: Is your air conditioning unit spending more time under repair than it is cooling your home? Even the best maintained units will require more and more work as time goes on, slowly costing you more money between annual service. If the repairman is at your home more often, it could be time for a new unit.
    • Size of your current air conditioning unit: If your air conditioner was designed a generation ago, it might not be powerful enough to keep your whole home cool and comfortable. Heritage can help you find the right sized unit for your home, balancing comfort with efficiency and giving you the best of all worlds.
  • Is it Time to Replace or Repair My Air Conditioner?

    When systems break down over time, conventional thinking suggests repairs may be more cost effective than replacing a new system. As parts start to wear down, replacements get harder to find, and the little problems become much bigger issues, doing simple repairs will eventually erode your budget.

    If your air conditioning unit is experiencing major breakdowns, such as leaking coolant, making more noise than usual, or working harder to keep your home cool all summer long, it might be time to start looking at a replacement option. Heritage’s licensed technicians can come out for a free inspection to determine if there are breaking or other issues with your air conditioner and make recommendations on whether repairs are best, or if it’s time for a replacement. No matter the situation, our technicians will give you an unbiased opinion and present you with multiple options to help you decide the best path to move forward.

  • What Are the Benefits of a New Air Conditioner?

    • Energy efficiency: Newer air conditioners are considerably more energy efficient compared to models that are over ten years old. A new AC system requires less power to cool your home, resulting in lower energy bills throughout the summer.
    • Improved performance: New air conditioning units straight from the factory come with new parts, blowers, and coils, meaning you won’t need to have them serviced as often compared to an older system. You’ll pay less in repair calls which can save big bucks over time.
    • Cleaner air quality: While older air conditioners have one job, a new unit works to remove damaging moisture from the air, provide ventilation throughout your home, and filter the air to make it cleaner. The latest systems can also come with IAQ UV lamps and whole-home dehumidifiers, reducing the amount of mold and other pollutants.
    • Smart home systems: The latest smart home integrations allows you to automate your heating and cooling experiences, as well as control your HVAC system from wherever you may be. Newer air conditioning systems are designed to work with smart home systems, personalizing your comfort and optimizing your energy savings.
    • Rebates and Tax Credits: Cost savings don’t just come from lower energy bills and fewer repair calls. Getting an energy efficient air conditioner, HVAC system, water heater, or other electrical upgrades can help you save money in the form of tax credits and rebates. Our technicians can help you identify which items qualify.

Ductless Air Conditioning Solutions from Mitsubishi

No matter how old your home is, you may be able to benefit from the size and efficiency of a ductless air conditioning unit. Heritage is your Mitsubishi Diamond Dealer, making us the preferred dealer for heat pumps and ductless air conditioners in Maine and throughout New England. Featuring peerless build quality and unmatched performance, Mitsubishi ductless air conditioner provides all the power of a central home cooling system without the size or existing ductwork. Mitsubishi ductless systems are also great for smaller spaces, like a detached home or new additions.

If it’s time to consider installing a new air conditioner, make Heritage Home Service the first call you make. Our highly skilled team comes with decades of experience, so you can rest assured your family will be taken care of completely. Each one of our HVAC service members are licensed and trained on all the latest systems, giving you the advantage of multiple options to make your home as comfortable as possible. No matter what type of system you are considering – central air conditioner, ductless mini split system, or heat pump – our team can install it correctly the first time, and often by the next day

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Financing Made Easy

When you choose Heritage, you can rest easy knowing that we provide straightforward options to help you budget for a complete solution that will last you for decades to come.

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Home Advantage Membership

With Home Advantage Membership, enjoy peace of mind knowing your home’s plumbing, heating, cooling, and electrical needs are handled year after year—hassle-free, with added benefits.

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What Our Customers Are Saying

Anthony was so helpful and professional. He did such a great job installing the lights! Such a nice guy too.

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Caroline D

Caroline D

October 13, 2026

Kyle did an awesome job at finding the real problem and getting me set up with an electrician. He’s very nice and very helpful.

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Dawn Berwick

Dawn Berwick

October 13, 2026

I had a leaking pipe in my home. I called Heritage and Isles arrived. He quickly diagnosed the problem and it was an easy fix. He made some suggestions for future work. Isles your awesome. Thanks again

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Steve

Steve

October 13, 2026

Our technician Stevenson was on time, incredibly friendly and professional. Fixed our problem in under an hour.We love using heritage home services, always responsive and professional, I would highly recommend.

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Alex Alessi

Alex Alessi

October 13, 2026

We’ve lived in our 100 year old house for nearly 25 years. During that time, as expected, we have had our share of urgent plumbing issues that needed repairs. This past weekend, we had a larger issue that really was an emergency situation. Jordan came on Sunday to assess the issue, helped remediate it to make the leak slow down until Monday, at which time he and his colleague Taevon came back during the time they scheduled in the morning, and diligently worked to replace large sections of pipe in our basement. They were courteous, professional, and were clearly motivated to finish the work. They went above and beyond expectations, and because of them, I will absolutely not hesitate to call them for the next projects that are coming. Finally, the price was very fair and they didn’t charge any emergency or off hours fees for coming on Sunday and completing the work during a holiday on Monday. When you have a tough situation on a weekend, finding a great plumber is a tough task. We are thrilled this worked out the way it did. Best plumbing experience I’ve had. Thank you!!!

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Greg Palmer

Greg Palmer

October 13, 2026

I had 4 plumbing problems, and I was concerned at least one could turn into a big deal since this is a multi family condo building. But all of it was fixed by Heritage quickly and painlessly and I was so relieved. That was a few weeks ago, and none of those issues have recurred

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Jinny Porter

Jinny Porter

October 13, 2026

Nick came to my home to worked on the furnace. He made sure I understood what was wrong with it and what was done to fix it. He was very professional. Made sure if I had any questions I knew where to call. I felt very secure in the work he did. Nick also made sure to clean up the area he was working in. I would definitely recommend Heritage Home Service, They stand behind their work.

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Erin Malcolm

Erin Malcolm

October 13, 2026

We’ve had Heritage do jobs for us across 2 different homes. Central air installation, furnace replacement, and electrical panel replacement. Everyone we’ve ever talked to or has come to our home to do work have been great and professional people. Always clean work and never make you feel like you’re paying for things you don’t need. They always prove their main goal is to give the customer what they want, what they need, and that the work is done correctly. Great financing options as well. We recommend Heritage to friends and family and will probably never go elsewhere for any future work we might need.

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Mac M

Mac M

October 12, 2026

I don’t think I could of had a more pleasant experience, water heater went out on me. The office person I dealt with was great. The technician was awesome. The work was great. The option for financing was nice if we had needed it

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Power Phone

Power Phone

October 12, 2026

Heritage is amazing and extremely professional. They keep you updated on arrival time and send a photo of the technician coming to your home. Derek fixed the leak in the basement, replaced plumbing under the kitchen sink and replaced our leaky tub spout. Derek and his assistant were very professional and courteous. The materials used are fantastic quality. They left our home spotless where they did their work. Very happy with everything , highly recommend Heritage.

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Potto Gold

Potto Gold

October 12, 2026

Frequently Asked Questions

  • What types of air conditioning systems does Heritage install in Maine?

    Heritage installs central air conditioning systems, ductless mini-split systems, and heat pump systems for Maine homeowners. Our HVAC technicians will assess your home’s layout, existing infrastructure, and cooling needs to recommend the most effective and efficient solution.

  • How do I know what size AC system my home needs?

    The right AC size depends on your home’s square footage, insulation levels, window count and orientation, ceiling height, and local climate. An oversized system cycles on and off too frequently, while an undersized system runs constantly without adequately cooling your home. Heritage performs a thorough load calculation to determine the correct size for your home.

  • Can Heritage install central air in a home that does not have ductwork?

    Yes. If your Maine home does not have existing ductwork, Heritage can install a ductless mini-split system that provides efficient cooling without ducts. If you prefer central air, we can also discuss options for installing new ductwork, though a ductless system is often more practical and cost-effective for homes without existing ducts.

  • How long does an air conditioning installation take?

    A standard central AC replacement typically takes one day. New installations that require ductwork, electrical upgrades, or other modifications may take longer. Ductless mini-split installations are usually completed in one day. Heritage provides a clear timeline during your estimate.

  • Does Heritage offer financing for AC installations?

    Yes. Heritage offers financing options to help Maine homeowners invest in a new air conditioning system. We provide upfront pricing and flexible payment plans so you can enjoy improved comfort without a large upfront expense.

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