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Old or Inefficient

Heating and Cooling System?

Upgrade to comfort without compromise with
a new HVAC system from CPI Mechanical Services.

FREE In-Home Estimate

Enjoy the Warmth

of a New Fireplace.

Offering the quality, service, and delivery you expect from White Mountain Hearth products including indoor and outdoor fireplaces, inserts, logs & burners, cast iron stoves, and mantels.

Heating Oil, Propane and Diesel

Order Fuel Now! Use our MyFuelPortal to order fuel now, for existing and new customers!

Heating, Ventilation and Air Conditioning

We have made it our goal to provide the best heating and cooling products to deliver the ultimate in home comfort.

Full-Service Plumbing

From water heaters and boiling systems to tub, shower, bathroom and kitchen fixtures, we are here for all installation and repair needs.

Fireplaces and Stoves

We offer expert installation of cast iron stoves and gas fireplaces. We also have outdoor living solutions such as fire pits, fireplaces and gas grills.

For Emergency Services Call 717.245.2382

Contact Us

Have Questions? Get In Touch!

Whether you’re looking for automatic or will call delivery of Heating Oil, Propane and even Diesel, a monthly budget payment plan, or solutions for your HVAC, Plumbing and Fireplace needs, we’re here for you. As always, we offer free estimates and are happy to service your home or office in Carlisle, Boiling Springs, Mt. Holly Springs, Gardners, Mechanicsburg, Newville, Shippensburg or Shermans Dale and throughout Central PA.

HVAC, Plumbing, Heating Oil and Propane Services

Carlisle Petroleum Inc. has proudly served the Greater Carlisle Area since 1982 as a family-owned business. We provide heating oil, diesel fuels and propane to local homeowners, businesses, and farmers. We also provide heating, air conditioning, hearth and plumbing services and installation. In 1992 we renamed our service division CPI Mechanical Contractors and then have since gone back to our roots as Carlisle Petroleum Inc. With a new generation of leadership for the company in 2024 the service and installation division will be CPI Mechanical Services along with Carlisle Petroleum Inc serving our heating oil, diesel, and propane customers. You will notice a few changes; a new CPI Mechanical Services logo, new truck graphics and our building has received a facelift. New services are in the planning stages with details becoming available this fall/winter.

Customer Reviews

Had a new HVAC system installed. Very professional and very nice installers. I am very pleased with the new install. Would highly recommend Carlisle Petroleum for your needs.

Ann SantaiSatisfied Customer

Tristan did a fantastic job of cleaning our furnace and air conditioning systems. He arrived right on time, was personable and informative about what he was doing, and conducted himself in a very professional manner. He spoke highly of CPI and told me it was a very good place to work. When I asked him about his training, he said CPI paid to send him to school. All in all, it was a very positive experience. I would recommend Tristan and CPI to anyone.

Barbara G.Satisfied Customer

What do you do on a 90degree day and your rather old AC unit decides to stop working?? Call Carlisle Petroleum!! Technician was here by 8am…found the problem…resolved the problem and by 11am our house was on its way to being cool again??? Big Shout Out of “Thank You” to Mike, the Service Technician ??

Beverly Klein
Beverly KleinSatisfied Customer

The entire experience with Carlisle Petroleum Inc was phenomenal from start to finish. Andy came to our home and was thorough with his explanation of the HVAC systems and install process. Once we decided to proceed, Andy was prompt getting it scheduled. The team that arrived to do the installation (Jim, Tristan and Andy) were considerate, professional and knowledgeable.They worked together efficiently and were very considerate of my home during the process. They even cleaned up all of the debris and insulation that had fallen onto my floors. I would most definitely recommend this company and its team members.

A Beecher
A BeecherSatisfied Customer

Our heat pump was showing signs of age so we had CPI come out for a review of our entire system, and since the prices seemed reasonable, we decided to replace our 30+ year old oil furnace at the same time. The crew showed up as scheduled with enough resources to finish both jobs in one day. We're very pleased with the efficiency of the crew and the product quality. Both units are much quieter and more energy efficient.

Ron Freed
Ron FreedSatisfied Customer

From meeting with Mike the President, to working with Amber the office manager, and all the employees who did the job, we experienced nothing but complete satisfaction and excellent customer service from CPI for our new furnace and air conditioning. Highly recommended!!

Hope Miller
Hope MillerSatisfied Customer

We have been customers of CPI for many years. Their service has always been prompt and professional. Their response time in addressing any area where assistance has been requested has always met and often exceeded expectations. The recent installation of our new air condition unit could not have been a more positive experience. The installers worked in excessive heat to promptly install the new inside and outside equipment and to remove and clean all work areas upon completion. They were informative, making certain there were no unanswered questions or concerns.

Leslie Weaver
Leslie WeaverSatisfied Customer

Great company to work with. My wife and I are very happy with our new central air conditioning. Everyone was polite and professional and answered all of our questions. We very glad that we went with Carlisle Petroleum inc for our air conditioning needs. Great job!!!

Mike Morris
Mike MorrisSatisfied Customer

We recently upgraded to a new natural gas-fired furnace to replace our older unit. Mike from CPI came to our home to assess how to more evenly heat/cool our three levels of living space with a single-zone H/VAC system.We followed his recommendation and two of his professional staff installed our new unit, including cutting new vents and intake, within half a day. They were professional, clean, courteous, quiet, and efficient. They took the time to link our new thermostat to our WIFI and showed us how to operate the controls from wall unit or electronic device.They measured the air-flow at every heat/ac register in the house to do their best to provide comfort on each floor.CPI installed the original unit when the home was built nearly 20-years ago and have maintained our system ever since. They are easy to work with, offered flexible financing, and back up their work.

Michael Martin
Michael MartinSatisifed Customer

Great experience with this company when looking to install central air for our older Victorian style home. From the start they were quick to respond to our questions, and provide estimates. Once given the green light their timelines were right on. We were particularly impressed with the workers who were polite and considerate. We found them by accident and their name belies all the services they provide. We will definitely look to them again in the future.

Paul Remy
Paul RemySatisfied Customer

News & Events

Latest News

Maintaining Your Air Conditioner

Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

Our Budget Payment Plan

Heating your home can be a significant expense and we want to help make it less stressful.

Types of Home Heating

New furnace standards are currently under development by the U.S. Department of Energy, and are due to be finalized in the spring of 2016. The current furnace standards have not been updated since 1987.

Looking for financing?

Special Financing Available.

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