Family owned and operated, Zimmerman Plumbing and Heating has been located in downtown Mechanicsburg, PA since 1980 – serving the Greater Harrisburg / Central Pennsylvania area
Zimmerman Plumbing, Heating & Air Conditioning is a family owned and operated residential service company focused on the value of doing the best possible work on every job. Located in downtown Mechanicsburg, PA, and service most of the Greater Harrisburg area. We’re members of the Air Conditioning Contractors of America (ACCA), a Mitsubishi Diamond Elite Dealer, and Carrier Factory Authorized Dealer. Our HVAC technicians are NATE Certified and trained regularly through dealer and manufacturer programs. Locally, we belong to the Mechanicsburg, West Shore and Carlisle Chambers of Commerce, and support many other great, local organizations throughout our community. We do our best to support fellow, local businesses who we’ve established relationships with as often as possible.
“Our company continues to remain small enough to provide our clients with a personal experience, and still, large enough to give the peace of mind of a professional solution to home comfort.”
-Earnie Zimmerman, President
Earnie Zimmerman, born and raised in Mechanicsburg, started the company to support his young family in 1980. The company’s foundation was laid on his hard work, integrity and community involvement set forth by his parents and early plumbing mentors. Dedication to his customers through all hours of the night and any day of the week, as well as his personal attention to detail, has allowed for the Zimmerman name to spread throughout the community and the company to grow.
In 1987 the business settled in its current location, 110 East Allen Street in downtown Mechanicsburg, in an old flour mill. Earnie’s devotion has stayed constant to his employees as the company has continued to grow and more services are continuously being offered, such as heating and air conditioning years ago. The company has always supported fellow, local businesses and been avid in community involvement.
A once one-man operation, the business currently employs more than 40 great people. The values still stay true, just like Earnie’s devotion to his company and community. You will still find him on-site inspecting installations, quoting estimates and generally running a tight ship.
At Zimmerman Plumbing, Heating and Air Conditioning, our goal is to make your home safe and comfortable. We strive to provide the Harrisburg area with the best temperature control and plumbing systems. We offer a wide range of quality services to keep your home running optimally and cost-effectively. Our general service categories include:
We offer a one-year warranty on ALL parts and labor on every service.
Performance Guarantee – If a new comfort system does not keep you comfortable within one-year of installation we will make unlimited attempts to fix the problems up to and including replacement of your system with a new comparable system absolutely free!
100% Money Back Guarantee – If, for any reason, you are not satisfied with your new comfort system within one-year of installation, we will do whatever it takes to make you satisfied, including replacing it with an equal value system or removing your system and refunding 100% of your investment.
We back all of our major system installations with a standard 2 year Zimmerman Plumbing, Heating and Air Conditioning labor warranty. We also offer 10 and 12 year labor warranties on all new comfort system installations.
Family owned and operated, Zimmerman Plumbing and Heating has been located in downtown Mechanicsburg, PA since 1980 – serving the Greater Harrisburg / Central Pennsylvania area
We stand behind our work by offering a 1-year guarantee on parts and labor installed by us. HVAC systems installed by Zimmerman come with up to a 12-year parts and labor warranty. Within the first year of an HVAC system installation we will make sure it is working as intended – up to a full system replacement if it cannot be corrected.
Our warehouse and trucks are fully stocked with OEM parts and filters for standard repairs. We send appointment reminders and call when our technicians are heading to your home.
We provide emergency technical service to your home 24 hours a day, 7 days a week, 365 days a year.
We are a fully licensed, bonded, and insured contractor. All of our technicians are background checked and drug tested.
We follow best practices in all of our services. Staying up to date through contractor resources, industry standards, and building codes. Some noteworthy examples include, grounding gas lines, installing low-level CO detectors during furnace installations, and using OEM parts for all of our work.
Our standards are high, and we expect the best from our team. Newly hired technicians are provided with a thorough training regimen to learn our standards and expectations. We even provide apprenticeship programs. Continuing education for our team is critical to keep up with industry standards, equipment advancements, and certifications like NATE and Master plumbing licenses.
We focus our efforts almost entirely on the pre-existing homes of the Central PA area – even specializing in historical homes.
It is important that you know who is in your home. Our technicians drive vehicles that are clearly identifiable and wear uniforms with name badges.
Besides the finished product, we expect to leave your home as it was found or better. We utilize drop cloths and shoe covers to protect your flooring. Upon completion our work area is cleaned and vacuumed if necessary.
Donating goods and services, sponsorships, and on-going community focused programs have allowed us to give back to the community that supports us.
The last thing you want is for your air conditioning to stop working in the summer or for your heating system to lose heat in the winter. No matter your HVAC brand, Zimmerman Plumbing, Heating & Air Conditioning can provide a variety of services to get everything in working order. We’ll quickly assess your system for repairs and recommend a fix that will fit your needs and budget. Whether you have a blown fuse or warm air flowing through your ductwork, we can help.
We also offer regular maintenance plans that help prolong your equipment’s life and avoid costly repairs down the road. When we come for a planned visit, we’ll look at your HVAC system and determine how to make it run cleaner, more efficiently and last longer. Our experienced team members will talk to you about any problems you’re experiencing, such as high utility bills, uneven temperatures or loud noises coming from your HVAC system. When we’re done servicing your equipment, you’ll feel confident in its ability to keep your home warm and cool all year long.


Trust the Experts at Zimmerman
After choosing an HVAC system, you also need to work with a company that can install, maintain and service that brand whenever you need help. Zimmerman Plumbing, Heating & Air Conditioning has over 40 years of experience handling all variety of HVAC brands.
Whether you’re installing a brand new HVAC system or you need quick and reliable repairs, you can trust our team. We provide high-quality parts and products, as well as a warranty on all the work we do for you. The sooner you work with us on regular maintenance for your HVAC system, the longer life you can get out of your equipment. We understand different brands inside and out, so we can help you avoid potentially costly repairs and keep your equipment running safely and efficiently.
If you need emergency service, you can count on Zimmerman to provide it. You won’t need to worry about enduring a cold or warm home when your HVAC system stops working. Plus, you will have the confidence of a professional organization standing behind our work.