Central Kentucky county
Heat pump repair and installs in Jessamine County (40356)
Heat pump blowing lukewarm air, or a furnace that won't stay lit out near the Kentucky River? We repair, replace and install heating and cooling across Jessamine County, in town and out in the country.
Short answer: HVAC service in Jessamine County
We repair, maintain and install heat pumps, furnaces and central air across Jessamine County, including Nicholasville, Wilmore and the rural roads toward the Kentucky River palisades. In-town homes may have Delta Natural Gas service and KU power, while farm properties often run heat pumps on Blue Grass Energy lines or propane furnaces. Call (859) 377-8167 any time for a diagnosis and a written price before work starts.
Homes and heating setups from Wilmore to the palisades
Jessamine County grew quickly as Lexington spread south, and the 2020 census counted almost 53,000 residents. Most live in and around Nicholasville (40356), where neighborhoods from the 1970s onward spread out from US-27. Wilmore, home to Asbury University and Asbury Theological Seminary, adds college-town houses and newer infill. Past the city limits, farmhouses and newer homes on acreage stretch toward the Kentucky River, which forms the county's entire southern border.
Delta Natural Gas serves much of Nicholasville, so gas furnaces paired with central air are common in town. Outside the gas lines the picture changes. We see a lot of heat pumps in rural homes, usually with electric strip heat for backup, and propane furnaces where owners prefer a burner. Blue Grass Energy serves much of the countryside, and Kentucky Utilities serves Nicholasville and Wilmore.
City neighborhoods get more detail on our Nicholasville service page, and Wilmore homeowners can read notes on that town. Homes on acreage often have condensers set far from the house, with long refrigerant line sets running between them. Those runs need extra charge matched to the line length and careful attention to oil return, or the compressor wears out early.

Why do rural Jessamine heat pumps and furnaces break down?
Open land, storms and long refrigerant runs put specific stress on equipment outside town. These are the faults we trace most often across the county.
Storm surges on control boards
Spring storms knock power off and on in quick bursts. Heat pump defrost boards and furnace control boards can fail after a surge, leaving the system dead or stuck in one mode.
Heat pumps stuck in defrost
A failed defrost sensor or relay lets frost build on the outdoor coil during freezing rain. The unit keeps running, but warm air never reaches the rooms.
Propane ignition that keeps failing
Propane furnaces need the right gas pressure and a clean igniter. A low tank, a weak regulator or a cracked hot surface igniter will each stop the burner from lighting.
Long line sets with a guessed charge
Condensers set far from the house need refrigerant added for the extra line length. A guessed charge cuts capacity and can starve the compressor of oil.
Debris packed into outdoor coils
Grass clippings, seed fluff and leaves pack into condenser fins on open lots. Airflow drops, pressures climb and the compressor works far harder than it should.
Heat pump, dual fuel or propane on rural Jessamine acreage
Most rural homes in the county land on one of four setups. Each has a place, depending on the house, the ductwork and the fuel on site.
| Setup | Good fit | Watch for |
|---|---|---|
| Heat pump with strip heat | All-electric homes with decent insulation | Strip heat running for hours in cold snaps |
| Dual fuel heat pump and propane furnace | Acreage homes with a propane tank | Correct switchover temperature at the thermostat |
| Propane furnace with central AC | Owners who want burner heat in winter | Tank level, regulator pressure and venting |
| Ductless mini split | Older farmhouses, additions and outbuildings | Indoor head placement and condensate routing |

Driving out to Jessamine farm roads in every season
Most calls in the county start on US-27 heading south from Lexington, then branch onto smaller state roads toward Wilmore, Camp Nelson or the river. Camp Nelson National Monument, about 20 miles south of Lexington, marks the southern stretch of our usual drives, and High Bridge sits on KY 29 about four miles southwest of Wilmore. Long gravel lanes are common out there, so gate details help.
Winter is when rural calls stack up. When freezing rain coats an outdoor coil, keep the thermostat at a steady setting instead of large setbacks, clear snow from around the unit and watch for AUX heat that never shuts off. Our guide to AUX and EM heat explains what those thermostat lights mean. If the house is losing heat fast, call (859) 377-8167 and we will talk through safe steps.
Service calls we take most in Jessamine County
Heat Pump Repair
Many rural Jessamine homes heat with heat pumps, and defrost or charge problems show up fast during freezing rain and cold snaps.
Heat Pump Installation
Replacing an aging heat pump on acreage means sizing it for the house and matching the line set length to the new outdoor unit.
Dual Fuel Systems
Homes with Delta Natural Gas or a propane tank can pair a heat pump with a furnace that takes over on the coldest nights.
Heat Pump Maintenance
Spring and fall visits clear packed condenser coils on open lots and catch weak defrost parts before winter weather arrives.
Emergency HVAC Repair
Rural homes lose heat quickly in a cold snap, so round-the-clock repair matters more where the nearest neighbor is far away.
Neighboring areas around Jessamine County
- Nicholasville 40356
- Wilmore 40390
- Fayette County 40507
- Woodford County 40383
- Mercer County 40330
- All 52 areas

Asked by homeowners in Jessamine County
Can you service propane furnaces on farms in rural Jessamine County?
Yes. We repair and replace propane furnaces on farms and acreage homes across the county. Common faults include low tank pressure, a failing regulator, cracked igniters and dirty flame sensors. If a furnace was converted from natural gas to propane, we also confirm the orifices and gas valve settings match propane before relighting it.
Is a heat pump a good fit for an older farmhouse near the Kentucky River in Jessamine County?
Often, yes, but the house decides. Older farmhouses may have little insulation, small ductwork or no ducts at all. We check heat loss, duct sizes and the electrical service first. For houses without ducts, a ductless system, or a heat pump paired with a propane furnace, can work better than a standard ducted heat pump alone.
Why does my Jessamine County heat pump run constantly in January?
When nights fall into the 20s, a heat pump loses capacity and runs long cycles, which is normal. Constant running with cool air at the registers is not. Low refrigerant, a stuck defrost cycle, a dirty outdoor coil or a failed strip heat element can each cause it, and we test all of them on one visit.
Heating or cooling trouble in Jessamine County?
Call (859) 377-8167 any hour. Tell us what the system is doing and where you are, and we will take it from there.