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Jeff Mackay Mechanical

Prompt HVAC services backed by over 30 years of experience.

Top-notch HVAC services in New Hampshire
We offer regular HVAC maintenance to keep our customers comfortable.

Littleton | Lincoln | Plymouth | Hanover

There's nothing more frustrating than when your climate control stops working. Scheduling routine mechanical services not only prevents a catastrophic failure in your HVAC system but can also prolong the lifespan of your units.


Jeff Mackay Mechanical is a skilled professional who delivers high-quality, reliable repairs and replacements to keep your heating and cooling system running smoothly.

Image of a heating, entilating & air conditioning service in Plymouth, NH.
Heating, Ventilating & Air Conditioning Services in New Hampshire
HVAC inspection, repair, and installation backed by over 30 years of experience

Entrust your property's climate control systems to the experienced professionals at Jeff Mackay and get inspection, repair, and replacement done promptly and affordably.

Get a free quote for HVAC service!
Prompt, efficient HVAC repair and installation in Littleton, Lincoln, Plymouth, and Hanover.