Providing Home Comfort Services to Our Friends and Neighbors

Heating and cooling service icon for JK Mechanical in Willow Street, PA.
HVAC service icon.

HVAC

We install, maintain, service, and repair a wide variety of residential HVAC equipment and related components. We have access to all major heating and cooling brands so we can recommend the best fit for your home.

Plumbing service icon for JK Mechanical in Willow Street.
Plumbing service icon for JK Mechanical in Willow Street.

Plumbing

A small leak or constant drip can end up costing you big bucks over time. JK Mechanical can maintain your plumbing system so that you enjoy clean water—and no drips! If you need to replace your old pipes or swap out some fixtures, we can do it.

Electrical services icon for JK Mechanical in Willow Street, Pennsylvania.
Electrical services icon for JK Mechanical in Willow Street, Pennsylvania.

Electrical

JK Mechanical provides prompt, professional electrical services when you need it most for your family. Don't get left in the dark—call us right away! We can troubleshoot problems, upgrade your circuit panel, rewire rooms, and tackle any other project to improve your comfort!

Solar installation, repair, and maintenance services icon for JK Mechanical.
Solar installation, repair, and maintenance services icon for JK Mechanical.

Solar

JK Mechanical installs solar panels and services for residential and commercial settings. Installing solar panels can lower energy bills, reduce carbon footprint, and increase home value while benefiting the environment.

Proudly Serving Our Clients Since 1979

JK Mechanical provides a wide range of commercial and residential services in Lancaster County and surrounding areas, offering a trustworthy and convenient source of installation, seasonal maintenance, and repair.

By combining a team of certified plumbing, electrical, heating, cooling, and air quality specialists, we are always the right answer to any challenge.

We make it easy to get the help you need. Targeting comfort, security, and affordability, we handle every project with prompt action, swift turnaround, and lasting results.

Commercial building with solar panels, courtesy of JK Mechanical in Willow Street.
JK Mechanical workers in the 1970s installing their first solar panels for a commercial building.
About-1

Building lifelong relationships with clients by exceeding expectations as an expert in HVAC, Electrical & Plumbing.

Geothermal Services

JK Mechanical taps into the free energy source buried in your backyard. We take advantage of stable temperatures underground, in a pond, or well, to keep you comfortable while minimizing monthly costs. Geothermal heating and cooling operates on electricity but relies on the earth’s thermal energy to maintain perfect year round temperature in the average-sized home for a dollar a day.

Shop Our Filters

Ensure the optimal performance of your HVAC system with our high-quality filters. Simplify the purchasing process by subscribing today to get your filters delivered regularly, right to your doorstep.

What Our Clients Say

“I had Sam and his helper Achilles at my house to replace my hot water heater. Achilles was very quiet but incredibly skilled at his job, and I was impressed with how efficiently he worked. Sam was absolutely wonderful—polite, professional, and extremely knowledgeable. He took the time to explain everything they were doing and made sure I understood the process. If there were a rating system from 1 to 10, I would give them both a 10 without hesitation.”
- Linda C.

“Frank came to our home January 6 2025 to remove the toilet in our small bathroom, so that a new floor could be laid. He pointed out a bad problem with the toilet mounting, and proposed a good way to repair it. We told him to go ahead and he made a very good repair. He was at all times very professional and repectful of both our home and ourselves. We would recommend him to anyone needing plumbing help.”

- Richard P.

JK Alliance Membership Program

JK Mechanical offers reliable, 24/7 emergency commercial heating and cooling service. But like a tune-up and yearly inspection for your car, performing regular maintenance and service on heating, cooling, ventilation,

BETTER COMFORT
& RELIABILITY

PREVENTATIVE
FIXES

SERVICE
DISCOUNT

PRIORITY
SERVICE

REDUCED
OPERATING COSTS

Current Specials

JKM 50 off service-CO
JKM furnace inspection-CO

Our Latest News

What Maintenance Is Needed For a Ductless System?

The Environmental Working Group agrees a well-maintained filtration system may have the greatest impact on your home’s indoor air quality (IAQ).

Keep Reading

5 Things You Should Know About Geothermal Heat Pump Maintenance

According to the US Department of Energy (DOE), there are approximately 50,000 geothermal heat pumps installed in the United States each year.

Keep Reading

How to Lower Your Winter Heating Bill

Heating alone accounts for over 40 percent of the average American’s utility bill, according to a US Department of Energy (DOE) analysis.

Keep Reading

What Maintenance Is Needed For a Ductless System?

The Environmental Working Group agrees a well-maintained filtration system may have the greatest impact on your home’s indoor air quality (IAQ).

Keep Reading

5 Things You Should Know About Geothermal Heat Pump Maintenance

According to the US Department of Energy (DOE), there are approximately 50,000 geothermal heat pumps installed in the United States each year.

Keep Reading
Children playing near a Carrier air conditioning unit in Lancaster, Pennsylvania. JK Mechanical co-op image.
Carrier Factory Authorized Dealer logo.

Turn To The Experts

As a Carrier Factory Authorized dealer, JK Mechanical goes above and beyond in providing exceptional service for your home's heating and cooling systems. Our technicians participate in extensive factory training to ensure that they are experts in all aspects of installation, maintenance, and repairs. We identify and recommend solutions that provide excellent home comfort at a value specific to your needs. Our NATE-certified technicians have passed stringent exams and maintain all required licenses and insurance. With a long history of customer satisfaction, you can trust JK Mechanical to deliver the highest quality and expertise for all your heating and cooling needs.

Join Our Team

Our JK Mechanical team is a hardworking group of certified and trained professionals. We have the highest quality, most skilled technicians in the area. We recruit from some of the top schools in Pennsylvania and are always looking for new talent.

SIGNING BONUS AVAILABLE!

Team of JK Mechanical employees on an HVAC new construction project in Lancaster, PA.
Residential HVAC service vehicle in front of home in Lancaster, PA.
JK Mechanical employee team photo.
JK Mechanical stewardship team photo.

Stewardship

JK Mechanical is proud to be part of the Lancaster County community. Giving back is just one of the ways we show our gratitude and commitment to the community we serve.

See What We’ve Been Up To