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

“Connor is very professional, courteous, and knowledgeable. He willingly takes time to inform me of what he has done and of any concerns he has with the equipment. We always look forward to his visit. A fine representative for JK Mechanical.”

- Harold S.

“Office prompt courteous efficient – tech’s arrive on time, explained everything, fixed geothermal fault, suggested some other things that might cause future problems, great company.”

- Justin C.

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

Special for  OFF ANY SERVICE HVAC-PLUMBING-ELECTRICAL. Restrictions may apply. Call for more information. Offer expires 6/30/24. GIVE US A RING 717-925-8934.
Special for 0 OFF WATER SOFTENER INSTALLATION SUPPLIED AND INSTALLED BY US! Restrictions may apply. Call for more information. Expires 9/1/24. GIVE US A RING 717-925-8934.

Our Latest News

3 Tips to Getting the Most From Your HVAC Warranty

An HVAC warranty offers you a valuable safety net for servicing and repairing the heating and cooling equipment in your Harrisburg, PA, home.

Keep Reading

Understanding the Upcoming Switch to A2L Refrigerants 

As of January 1, 2025, HVAC manufacturers are required to produce equipment that uses a class of refrigerants known as A2Ls. The specific refrigerant most companies will use is R-454B, also known as Puron Advance. This change is part of a broader effort to enhance environmental sustainability, combat global warming, and improve system efficiency. It will replace the current refrigerant, Puron, in all residential ductless, ducted, and light commercial products. At JK, we understand that any transition can bring about concerns and questions. Our goal is to provide you with clear information on why this switch is happening and to reassure you that purchasing a system and receiving service will proceed as normal. 

Keep Reading

Air Handler Maintenance

All the air in your Pennsylvania home runs through your air handler, and keeping it in tip-top shape has distinct benefits for you.

Keep Reading

3 Tips to Getting the Most From Your HVAC Warranty

An HVAC warranty offers you a valuable safety net for servicing and repairing the heating and cooling equipment in your Harrisburg, PA, home.

Keep Reading

Understanding the Upcoming Switch to A2L Refrigerants 

As of January 1, 2025, HVAC manufacturers are required to produce equipment that uses a class of refrigerants known as A2Ls. The specific refrigerant most companies will use is R-454B, also known as Puron Advance. This change is part of a broader effort to enhance environmental sustainability, combat global warming, and improve system efficiency. It will replace the current refrigerant, Puron, in all residential ductless, ducted, and light commercial products. At JK, we understand that any transition can bring about concerns and questions. Our goal is to provide you with clear information on why this switch is happening and to reassure you that purchasing a system and receiving service will proceed as normal. 

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