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New England is known for their historic homes with over a century of stories to tell. But many of these spaces lack one key modern amenity: Central air conditioning to keep your home comfortable during the summer months.

For many years, the only solution to beat the heat were bulky and loud window-mounted AC units. While they were effective, they lacked efficiency. Thanks to modern technology, homeowners now have a new option for home cooling: Mini-split air conditioning systems.

Also known as “ductless” air conditioning units, mini split installation is a quiet and efficient way to provide homes with comfort throughout all the seasons. These systems can work in concert throughout your home to provide zone coverage where you spend the most time inside.

Heritage Home Service is the top mini-split installation company in Maine, and one of the few Mitsubishi Diamond Dealers in Southern Maine. If it’s time to upgrade your air conditioning system, call us today for a free consultation about how a mini split air conditioner and heat pump may be the best solution for your home.

JUST CALL HERITAGE (207) 203-4755

FAQs

  • How Do Mini Split Installations Work?

    When you call Heritage to schedule your free consultation, our experienced technicians will inspect your current home in order to understand how a mini split system can work best for you. Some of the questions you can expect includes:

    • What are your current heating and air conditioning systems?
    • Is this replacing an old system or is this a new installation?
    • Is ductwork already installed in your home?
    • How regularly do you run your heating and air conditioning systems?
    • Are you considering a single-zone or multi-zone system?
    • How many indoor units do you anticipate needing?
    • Would you like to add smart home integrations or air quality upgrades?

    With this information, we can create a recommendation for your home, answer your questions, and provide an installation quote on the spot. We can also discuss cost, help you arrange for financing, or guide you through applying for tax credits you could qualify for.

    In many situations, we can schedule your mini split installation as soon as the next day! When you schedule your mini split installation, our team will call before we arrive in fully-stocked vehicles ready to get the job done. A single-zone mini split installation can take as little as two hours, while multi-zone systems may require a little more time.

    Once the installation is complete, we’ll do all the cleaning up and leave your home better than we found it. Our technicians will give you step-by-step instructions on how to use your new mini split system, and only leave once your questions are answered. Should you have any problems after installation, call us back – we’ll do what it takes to make it right!

  • Why Should I Consider a Ductless Mini Split AC System?

    No matter the age of your home, there are several reasons why you should consider upgrading to a mini split air conditioning system.

    Easy to Install
    A mini split system packs all the power of a traditional air conditioning system into a smaller package. Mini splits can be installed in any room of your home within a reasonable distance of the outside unit, creating zones to provide cooling in your common living spaces. Outdoor units can also be installed in many different configurations, including on the ground, on the roof, or mounted to a well.

    Provides Cooling and Heating
    While some mini split systems only provide air conditioning, our preferred units also work as heat pumps to keep your home warm during the cold winter months. Our systems can work at temperatures as low as -13°F, keeping your family safe and comfortable no matter what the weather brings. Mini split systems can also work alongside a furnace or boiler system, giving you more options and greater overall efficiency.

    Create Zones Throughout Your Home
    A ductless mini split system can be set up to run independently to heat and cool one room in a single-zone configuration, or alongside several other units in a multi-zone setup. If you are looking to provide climate control to only one room or an addition to your home, a single-zone setup can provide the right solution without a complicated installation. Should you need a whole-home heating and cooling solution, a multi-zone mini split installation gives you the benefits of room-to-room control and great energy efficiency.

    Cost Savings From Energy Efficiency
    Compared to traditional central air conditioning systems, mini split systems can reduce your energy consumption by up to 30%. A traditional air conditioner works to cool large areas of your home, and can hike your energy bills if there are issues with the unit or leaks in your existing ducts. Because a mini split system doesn’t rely on ducts, they don’t need as much power to keep your home comfortable.

    Quieter Than Window-Mounted Units
    Traditional window-mounted units are often loud, which can be unpleasant in the day and hard to live with at night. A Mitsubishi mini split system is among the quietest and most efficient available on the market today, keeping your family comfortable all season long without the unbearable noise.

    Easy Upgrades and Add-On Units
    Mini split systems are modular and can be upgraded or added to with little difficulty. Both single-zone and multi-zone systems are controllable with remote controls or smartphones, and can be fitted with enzyme filters to reduce allergens in your home. With one system, you can have full control over your comfort no matter where you are.

  • How Are Ductless Mini Splits Different From Other AC Options?

    Traditional air conditioning units use a single outdoor unit to cool air through a refrigerant chamber while removing moisture. The air is then distributed through a duct system to cool large areas of your home. These systems can work well, but can be inefficient due to duct leaks or outdoor unit breakdowns.

    A ductless mini split system utilizes one or more indoor evaporators to create comfort zones in your home, all powered by a single inverter-controlled, variable-speed outdoor compressor. Unlike a traditional HVAC system, the compressor only works when you turn on the different zones. By working continuously and only speeding up or slowing down when units are on, a mini split system saves you money through efficiency by blowing air directly where you need it without losing energy through the ductwork or other potential leak points.

  • Can You Have Both a Mini Split AC and a Central AC Installed?

    Yes – Many homeowners will use a mini split system alongside a central air conditioning system for the cost benefits and convenience. A single-zone mini split system can add heating and air conditioning to any part of your home. In areas of your home without existing ductwork, such as a garage or any home additions, a ductless system can provide climate comfort without extensive construction or high installation costs.

  • What Maintenance Do Ductless HVAC Systems Need?

    Like other heating and air conditioning systems, ductless mini split systems also need annual maintenance and inspection for repairs. Scheduling an annual service call allows a trained and licensed technician to clean your system, change any necessary filters, inspect the mechanical components, and go through small repairs before they turn into major problems. A well-maintained mini-split system can last 15 years or longer, helping you get the most out of your investment.

Mini Split Installation with Mitsubishi

In over 35 years of business, Heritage has worked with numerous heating and air conditioning systems – and we prefer the manufacturing quality and technology of Mitsubishi. Heritage is your Mitsubishi Diamond Dealer, giving you the assurance that your system will be professionally installed by certified technicians, and will stand by our work to make sure you have a premium ductless HVAC solution for your home and family.

Trust Heritage for Your Mini Split Installation and Maintenance Throughout Southern Maine

As the premier mini split installation company in Southern Maine, trust the expert technicians at Heritage Home Service to keep your family safe and comfortable all year long. Call us today to get your free consultation for your home.

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What Our Customers Are Saying

Todd did a great Job installing electrical outlet for the dryer. Very personable and professional, would recommend him every time. He also showed me how much space I had left on my breaker panel for future use. Thanks Todd!

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Nip Tanner

Nip Tanner

July 3, 2025

Great work and done quickly.

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Ernie Gabriel

Ernie Gabriel

July 3, 2025

The service provided was exceptional, encompassing the entire process from initial appointment scheduling to the completion of the work. Elijah demonstrated punctuality, professionalism, and effectively addressed our requirements. Furthermore, the same-day service delivery was greatly appreciated. We are highly satisfied with the service and commend the team’s performance.

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Penney Small

Penney Small

July 2, 2025

Bryce was very professional, courteous, friendly. He kept us informed about when they will be here, what he was doing, how long they will be. Showed us all the work that was done, and how everything works. Answered all our questions. Very exceptional service. Would recommend to anybody. So very pleased!

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Debra MacKay

Debra MacKay

July 1, 2025

Very knowledgeable and efficient staff. Provided me with great future maintenance tips.

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patrick quinn

patrick quinn

July 1, 2025

I was very pleased with the efficient service today!

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Bruce Dobkowski

Bruce Dobkowski

July 1, 2025

Friendly and competent and they were careful. Good job.

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Eric Evans

Eric Evans

June 30, 2025

Technicians were booked promptly for service and came in the time window and assessed, diagnosed and managed the problem with our heat pumps quickly and thoroughly informed us along the way of what was needed, the cost and tips to maintain better moving forward. We are grateful and thankful for their service. We will be working with Heritage moving forward for all our heat pump needs!

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Kristen Hoglund

Kristen Hoglund

June 26, 2025

Well trained technician

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kirk plender

kirk plender

June 26, 2025

Called on a Thursday with an active leak…actually a drip…found by luck on the cellar floor. Vinny showed up less than 24 hours later, and after diagnosing the issue found the problem. It wasn’t what I thought, but his perseverance paid big time dividends. On a Friday early evening Vinny made a trip to a Home Depot 30 minutes away, and when he returned the problem was solved in 30 minutes. Heritage upgraded our electrical system from 100 amp to 200 amp, and installed a whole house generator for us during the winter, so we were very familiar with the company. I can’t say enough good things about their workmanship, their customer service, and their professional employees. I would be pleased to have Vinny come back should the need arise. He was great!! Dean Wolfahrt 115 Payeur Circle Sanford, ME. 04073

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Dean Wolfahrt

Dean Wolfahrt

June 21, 2025

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