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Ductless Mini Split Installation | Just Call Heritage

Mini Split AC System Installation & Replacement Services

If you need a new ductless air conditioner or heat pump, schedule a free consultation with us. After inspecting your home and existing HVAC system, we’ll provide a list of recommended options and their price. In most cases, our installation team can even set up your new ductless system the very next day.

Ductless air conditioners, also known as “mini splits”, are an excellent cooling option for many homeowners in New Hampshire. This is because a significant number of homes in the Northeast don’t have existing ductwork necessary for central air conditioning.

Ductless mini splits are a sleek, versatile alternative to central air conditioning. They don’t need ducts to heat or cool your home, so they can be installed in almost any space — and the configurations are almost endless. So if you’re sick of sweaty summers and loud, bulky window AC units, give Heritage a call! With over 35 years in business, we are the leading mini split service provider in New Hampshire.

JUST CALL HERITAGE (603) 354-0092

FAQs

  • What Are the Benefits of Ductless Mini Split AC Systems?

    Easy Installation
    Mini split systems use less space to fit all of the necessary components of heating and cooling equipment without any ducts. Mini-split systems can be installed in any room as long as the outdoor unit is within a reasonable distance. Outdoor units can be installed on the ground, roof, or mounted to the wall.

    Cooling + Heating
    As a side benefit, all of Heritage’s ductless AC systems double as heat pumps during the colder months, providing heating to your home in outside temperatures as low as -13°F. Even if you already have a furnace or boiler, you’ll be able to heat your home with greater efficiency by using the heat pump instead.

    Zoning Capabilities
    Ductless mini splits can be set up to control the temperature in just one room (single-zone) or throughout your home (multi-zone). Single-zone systems are great for additional rooms or a single area that needs better temperature control. Multi-zone mini split systems are a whole-home alternative to central air conditioning, with the added benefit of room-to-room control and excellent energy efficiency. Zoning can meet everyone’s temperature preferences at once, meaning no more fighting over the thermostat!

    Energy Efficiency & Cost Savings
    Central air conditioning distributes air throughout the whole house, so you have to adjust the thermostat if just one room is too hot or cold. These systems have to work even harder if your ductwork has air leaks or was improperly installed. Mini split systems, in comparison, can reduce energy consumption by 30% simply because they don’t need ductwork.

    Quiet Operation
    Our Mitsubishi mini split systems are some of the quietest air conditioners available on the market. Their ability to operate without noise makes them perfect for bedrooms and other quiet spaces. Central and window AC units simply can’t compare!

    Available Upgrades and Add-ons
    Each indoor unit contains its own local temperature sensor and can be individually controlled from a remote control – or, with the correct upgrade package, your smartphone. If seasonal allergies are a concern, they can also be fitted with enzyme filters that eliminate allergens and irritants inside your home.

  • The Mini Split Installation Process

    During your free initial consultation, one of our friendly HVAC experts will inspect your home and ask some questions about your comfort needs and preferences:

    • What is your current HVAC system? Will this be a replacement or a new installation?
    • Do you have existing ductwork?
    • How often do you use your HVAC system
    • One or multiple zones? How many indoor units?
    • How important is energy efficiency to you?
    • Are you interested in any smart home or indoor air quality add-ons?

    Based on these factors, we’ll recommend some options, answer any questions you have, and provide a quote. We can also help with the financing process and applying for tax credits you qualify for, if applicable.

    In most cases, we can schedule your mini split installation for the next day. Our HVAC team will update you on our arrival and show up on time in Heritage-branded vehicles. Once we get started, the installation process only takes a couple of hours. Multi-zone systems will take a little longer to install than a single mini split.

    When the installation is complete, we’ll clean up the work area and show you how to operate your new ductless mini split. If there are any problems after we leave, you can call the Heritage office, and we will do what it takes to make things right!

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

    Ductless mini split systems are configured with one or more indoor units (evaporators) powered by a single inverter-controlled, variable-speed outdoor compressor. The compressor delivers maximum comfort by speeding up or slowing down to meet your specific needs. By continuously working, the ductless AC unit doesn’t waste energy like other traditional HVAC systems. These systems are also known for being efficient because no energy is lost while transporting air through lengthy ductwork.

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

    The short answer is yes! Even if you have a central cooling system, you can still benefit from a ductless system in areas of your home without existing ductwork such as a new addition, workshop, garage, or finished basement.

    Typically, existing ductwork is not designed to accommodate additions or renovations and therefore is only sized to meet the exact airflow requirements of your existing setup. This makes it either impossible or too costly to add a new “zone” to existing ductwork. In these cases, a mini-split solution may be a better option.

  • Are Mini Splits Good for Heating?

    Yes! Most standard units are effective down to about 35 degrees, or you can upgrade to a Hyper Heat system so you can heat your home all year round, even down to -13°F. And depending on the layout and size of your system, ductless heat pumps can actually heat your home more efficiently than traditional fossil fuel systems like gas or oil, saving you money during the heating season.

  • What Maintenance Do Ductless HVAC Systems Need?

    Ductless AC and heat pumps need annual maintenance just like any other HVAC system. These services give us the chance to clean your system, inspect all components, and make small repairs before they turn into big expensive problems, ensuring that your mini split continues to work throughout the year. HVAC systems that are routinely maintained operate more efficiently, need fewer repairs, and live longer than those that don’t get the same care.

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Mitsubishi Mini-Split Systems

As a Mitsubishi Diamond Dealer, our service technicians at Heritage Home Service are experts at installing and servicing Mitsubishi mini split systems, and they have been our brand of choice for many years due to their excellent value for performance and quality. As a leader in the mini split industry, you can rest assured that you’re receiving the best there is when it comes to ductless systems.

Mitsubishi mini splits can provide zoned or whole-home heating and air conditioning. These systems utilize a wall-mounted indoor unit that’s connected to an outdoor condenser through a direct line, using no ducts and making your life easier! Our ductless HVAC products are highly customizable, allowing you to choose the number of individual units and control zones you want in your home.

No Ductwork? No Problem! Count on a Mini-Split System by Heritage to Keep You Cool

Whether you’re looking to cool your entire home or just a room, Heritage can provide you with a solution to meet your needs. Contact us today to schedule a free estimate for a mini-split system that is right for you.

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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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$99

Drain Camera Inspection

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Up to

$1000

System Buy Back Program

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10% OFF

Indoor Air Quality Products

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Easy Payment Plans

0% for 60 Months Financing

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10% OFF

Sump Pump Replacements

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$50 OFF

whole home surge protection

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Generator Estimates

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What Our Customers Are Saying

Robert August was great. Super nice and was very good at telling me that he was doing and very knowledgeable. I would highly recommend Heritage Home Service!

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andrew rodrigue

andrew rodrigue

June 25, 2026

I had a great experience with Heritage. Nicholas came out to service my mini splits and was very professional, knowledgeable, and efficient throughout the entire visit. He took the time to make sure everything was working properly and was courteous and easy to talk to. I really appreciated his attention to detail and excellent service.

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Ashlei Shireling

Ashlei Shireling

June 25, 2026

Heritage provided great services, from emergency weekend diagnostics, to full system replacement and full duct cleaning after install. Ill be using them again in the future and recommending them to others.

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Jim Byrne

Jim Byrne

June 25, 2026

Great communication from all technicians. On time, they paid extra attention to keeping the work areas inside and outside clean and organized. They were all Very professional and well trained at their jobs.

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Edward Minerowicz

Edward Minerowicz

June 24, 2026

Jim was exceptional, he explained everything very well, knew what the problems were and got them resolved quickly. I would recommend him every time. Thank you

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Clayton Hartnett

Clayton Hartnett

June 24, 2026

Good morning. I recently had service done at my house. I would just like to say a few words about the two electricians who came for that service call. Bryce was the best! They were polite and professional. They diagnosed the issue using a great deal of skill and expertise. They kept me informed every step of the way, and I am more than satisfied with my results! I really have nothing but wonderful things to say about you and your company. I will only use you in the future, and will heartily recommend your company to others. Thank you so much and have a great day!

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Mobyblz Patsjam99

Mobyblz Patsjam99

June 24, 2026

William was exceptional and knowledgeable. We are in the process of selling our home and purchasing a new home. He walked us through the issues with our current plumbing problem. He also provided us with invaluable information on our new home which has a septic system. I would definitely recommend William to anyone looking for plumbing needs.

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Andrea Mason

Andrea Mason

June 24, 2026

called Heritage Home Services expecting a repair and maybe a mild headache. Instead, they showed up on time, knew exactly what they were doing, and somehow made home maintenance feel less painful than assembling IKEA furniture. The technician was professional, friendly, and explained everything in a way that didn’t require an engineering degree. The work was done quickly, cleanly, and without any surprise drama—which, if you’re a homeowner, you know is basically a miracle. My house is happier, my stress level is lower, and I’m pretty sure even my thermostat is smiling. If home service companies had a Hall of Fame, Heritage Home Services would have a plaque near the entrance. Highly recommend them to anyone who enjoys competent service, fair treatment, and not having to watch YouTube tutorials to fix everything themselves.

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Family clenord

Family clenord

June 24, 2026

Ryan O’Connor of Heritage Home Service did a marvelous job installing a smart leak detector on my cold water line. It required some “creative” piping. When he was done, the site was immaculate.

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Ralph Verni

Ralph Verni

June 23, 2026

I just wanted to leave a review for Jason M. Jason was amazing, super friendly and knowledgeable- you really couldn’t ask for a better experience. He took the time to explain everything and I really appreciate the superior service. It is people like Jason M who make me happy with my decision to use Heritage!

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Trevor Daigneault

Trevor Daigneault

June 23, 2026

Frequently Asked Questions

  • What is a ductless mini-split system and how does it work?

    A ductless mini-split consists of an outdoor compressor unit connected to one or more indoor air handlers, delivering heating and cooling without the need for ductwork. Each indoor unit is controlled independently, allowing you to set different temperatures in different rooms or zones.

  • Why are ductless mini-splits a good choice for New Hampshire homes?

    Ductless mini-splits are ideal for New Hampshire because modern models provide efficient heating even in sub-zero temperatures, they eliminate energy losses from ductwork, and they are perfect for heating additions, garages, or older homes without existing ducts.

  • How many indoor units do I need for my home?

    The number of indoor units depends on how many rooms or zones you want to heat and cool independently. Heritage performs a load calculation and discusses your comfort goals to recommend the right configuration, whether it is a single-zone system or a multi-zone setup.

  • How long does a ductless mini-split installation take?

    A single-zone ductless mini-split installation typically takes one day, while multi-zone systems may take 1 to 2 days. The installation requires only a small 3-inch hole through the wall for the refrigerant line, making it far less invasive than installing traditional ductwork.

  • Are there rebates for ductless mini-split installation in New Hampshire?

    Yes, ductless mini-split heat pumps often qualify for utility rebates, federal tax credits, and manufacturer promotions, especially high-efficiency cold-climate models. Heritage will help you identify and apply for all available incentives to lower your out-of-pocket cost.

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