Heat Pump Installation & Repair

One system that heats and cools your home all year — installed correctly so it actually performs the way it should.

Heat pumps have become one of the most practical and efficient options for home comfort in New England. They heat in the winter, cool in the summer, and when they are properly installed and sized, they do both well. The problem is that heat pump performance is highly dependent on the quality of the installation. A system that is sized wrong or set up incorrectly will struggle in cold weather, run inefficiently, and leave you questioning whether you made the right choice. At Shelly Heating and Cooling, we install heat pump systems the right way — starting with a proper assessment of your home before any equipment is ever selected.

We install and service both ducted and ductless heat pump systems across Winchendon, Gardner, Athol, Fitchburg, Templeton, Ashburnham, and the surrounding communities in Worcester County and Franklin County. Whether you are replacing an aging furnace and AC with a single heat pump system or adding a ductless unit to a room that has never been comfortable, we handle the complete job from start to finish. We also repair existing heat pump systems — diagnosing refrigerant issues, defrost cycle problems, reversing valve failures, and anything else that causes a heat pump to underperform in either heating or cooling mode.

A well-functioning heat pump is one of the most efficient ways to condition a home, and it is an investment worth protecting. Whether you are considering a new installation or your existing system is not performing the way it should, call Shelly Heating and Cooling at (978) 868-3403. We will give you an honest assessment, clear pricing, and work that holds up through every season central Massachusetts throws at it.

What We Offer:

Ducted Heat Pump Installation — We install whole-home heat pump systems that connect to your existing ductwork, replacing or supplementing your current heating and cooling equipment with a single efficient system.
Ductless Heat Pump Installation — For homes without ductwork or rooms that need independent temperature control, we install ductless heat pump systems that provide both heating and cooling without major renovation.
Heat Pump System Replacement — When an existing heat pump has reached the end of its useful life, we remove the old equipment and install a properly sized replacement that performs reliably through all four seasons.
Heat Pump Repair — All Makes & Models — We diagnose and repair heat pump problems including refrigerant leaks, reversing valve failures, defrost cycle issues, compressor faults, and electrical failures across all major brands.
Cold Climate Heat Pump Installation — Modern cold climate heat pumps are designed to operate efficiently even when temperatures drop well below freezing — a real consideration for homes in central Massachusetts and southern New Hampshire.
Refrigerant Service & Leak Repair — Low refrigerant affects both heating and cooling performance. We locate leaks, repair them properly, and recharge the system to the correct specification.
Post-Installation Testing & Seasonal Verification — After every heat pump installation, we test the system in both heating and cooling modes to confirm it is operating correctly before we leave your home.

Why Choose Shelly Heating and Cooling for Heat Pump Installation & Repair

Experience With Both Ducted and Ductless Systems — Heat pumps are not one-size-fits-all. We work with both system types and know the differences in how they are installed, configured, and serviced. You get the right recommendation for your specific home and situation — not just whatever is easiest to install.
Cold Weather Performance Knowledge — Heat pumps in New England face conditions that systems in milder climates never deal with. We understand how these systems behave in cold Massachusetts winters and install equipment that is rated and sized to handle it. That knowledge makes a real difference in how your system performs from December through March.
24/7 Repair Availability — A heat pump that stops heating in January is every bit as urgent as a furnace failure. We are available around the clock for heat pump repairs across Winchendon and the surrounding area. You will reach a real person when you call — any time of day or night.
Honest System Recommendations — Heat pumps are a strong choice for many homes, but not every home. If a heat pump is the right fit for your situation, we will tell you why and give you a clear picture of what to expect. If it is not the best option, we will tell you that too and point you toward what actually makes sense.
Full Accountability as a Local Business — Shawn and Julia Shelly own and operate this business in Winchendon. Every installation and repair reflects directly on their name in this community. When you have a question or a concern after the job is done, you are reaching the owners — not a call center.