Over 30 Years of

ExperiencE Providing

Prompt HVAC Services

BOOK AN APPOINTMENT

Over 30 Years of

ExperiencE Providing

Prompt HVAC Services

BOOK AN APPOINTMENT

Professional HVAC Services in New Hampshire

Nothing is more annoying than when your climate control breaks down. Scheduling routine mechanical maintenance keeps your HVAC system from failing catastrophically and can also increase its lifespan. A knowledgeable specialist, Jeff Mackay Mechanical provides high-quality, dependable repairs and replacements to keep your heating and cooling systems operating efficiently. Call our highly skilled team in Littleton, New Hampshire, at 603-444-6770 or cell at 603-616-9664 today for a free estimate.

Trusted Heating and Cooling Solutions

Learn more about the more than 30 years of experience-backed HVAC inspection, repair, and installation services in New Hampshire. The skilled specialists at Jeff Mackay Mechanical can evaluate, repair, and replace the climate control systems on your property quickly and affordably.

Prompt and Courteous Technicians

Jeff Mackay Mechanical always provides quick and effective HVAC installation and repair in Littleton, Lincoln, Plymouth, and Hanover, New Hampshire. We offer residential and light commercial heating and cooling services to meet your needs. Our passion is providing exceptional service at competitive prices.

Get a free HVAC service estimate! Call our friendly and knowledgeable HVAC team at 603-444-6770 or 603-616-9664 today.

Our Client Reviews

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    ★★★★★

    Jeff came out to our house to do a routine Furnace cleaning, he discovered that their was a hairline crack and the furnace was unsafe for operation. He handled that news to use very professionally. When we decided to get the furnace replaced, He acted quickly and did all the needed measurements same day. He then had everything ready in under a week for install, came first thing in the morning and got everything in place by noon. I highly recommend using Jeff.


    - Michael D.

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    ★★★★★

    Jeff showed up on time, pinpointed the issue immediately, fixed it and we will be giving him our regular maintenance from now on!  Professional, personable, affordable.  His office staff was also friendly and efficient.


    - Lori N.

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  • Slide title

    ★★★★★

    Jeff has helped us with our furnace and heating three times now and I can't say enough good things about him.  He responds to calls quickly, arrives promptly, and is very professional with his work. We had an emergency furnace leak early on Christmas Eve, and not only did he come to fix it, his pricing was very fair.  We recommend him highly.


    - Christine S.

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  • Slide title

    ★★★★★

    Jeff and John are very knowledgeable, professional, and thorough with their work. It is great to be able to pick up the phone during any type of emergency heating issue and they are there the same day, regardless of what time it is. I would highly recommend Jeff MacKay Mechanical to anyone.


    - Dale P.

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  • Slide title

    ★★★★★

    I had Jeff MacKay Mechanical come install a boiler for me and they produced nothing less than quality work. Jeff was very accommodating and made the installation process simple and quick. Him and his team are very friendly, reliable, and prompt with their service, leaving no mess behind. I would highly recommend!


    - Mike H.

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  • Slide title

    ★★★★★

    Jeff came out to our house to do a routine Furnace cleaning, he discovered that their was a hairline crack and the furnace was unsafe for operation. He handled that news to use very professionally. When we decided to get the furnace replaced, He acted quickly and did all the needed measurements same day. He then had everything ready in under a week for install, came first thing in the morning and got everything in place by noon. I highly recommend using Jeff.


    - Michael D.

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  • Slide title

    ★★★★★

    Jeff showed up on time, pinpointed the issue immediately, fixed it and we will be giving him our regular maintenance from now on!  Professional, personable, affordable.  His office staff was also friendly and efficient.


    - Lori N.

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  • Slide title

    ★★★★★

    Jeff has helped us with our furnace and heating three times now and I can't say enough good things about him.  He responds to calls quickly, arrives promptly, and is very professional with his work. We had an emergency furnace leak early on Christmas Eve, and not only did he come to fix it, his pricing was very fair.  We recommend him highly.


    - Christine S.

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  • Slide title

    ★★★★★

    Jeff and John are very knowledgeable, professional, and thorough with their work. It is great to be able to pick up the phone during any type of emergency heating issue and they are there the same day, regardless of what time it is. I would highly recommend Jeff MacKay Mechanical to anyone.


    - Dale P.

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  • Slide title

    ★★★★★

    I had Jeff MacKay Mechanical come install a boiler for me and they produced nothing less than quality work. Jeff was very accommodating and made the installation process simple and quick. Him and his team are very friendly, reliable, and prompt with their service, leaving no mess behind. I would highly recommend!


    - Mike H.

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