Heating And Air Conditioning Greencastle, PA

Johnston's Heating & Cooling, LLC

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A/C Repair Greencastle, PA

A/C repairIs your air conditioner not working properly? There are several issues that can cause your A/C to malfunction, such as a broken compressor, dirty evaporator coil, low refrigerant level, and more. If you’re not sure about the exact reason why your unit has failed, call in the professionals. 

When you’re looking to repair your A/C unit, Johnston’s Heating & Cooling has got you covered. We’ll thoroughly inspect your system to spot the problem and provide appropriate solutions. No matter what A/C repairs you need, our expertly trained technicians can do the job right. Our years of expertise in the HVAC business have kept Pennsylvania’s residential and commercial owners relaxed and comfortable throughout the year.  Get a free estimate today!

Greencastle A/C Installation

A/C InsulationIs your current air conditioner failing? If it’s summer and you think you need a new A/C installed, look no further than the experts. Before the heat strikes, it’s important to secure an air conditioning system that cools enough.

When dealing with A/C installation, the air conditioning company you choose definitely matters. For professionally-installed A/C unit, Johnston’s Heating & Cooling is the right company to call. With the help of our best-trained technicians, we make sure your cooling system won’t leave you soaked in wet throughout the warm months. The comfort and peace of mind you need is with us. Request a service with us today!

Air Conditioning Replacement

air conditioning replacementCan’t your current air conditioning system keep up with your comfort requirements? Had it received several repairs in a year? When you current A/C unit leaves you dissatisfied and uncomfortable, replacement is the best solution. Replacing your A/C is advisable, especially if you noticed a spike on your energy bills and a decline in your indoor air quality.

Generally, a typical air conditioner can last up to 15 years with regular maintenance. But, if yours has passed this limit and shows odd signs like poor IAQ, you know it’s time to get a new unit. At Johnston’s Heating & Cooling, we offer the best A/C replacement solutions perfect for your home or office. Whether you’re looking for a credible replacement service or a high-efficiency A/C unit, we surely can provide your needs. Contact us to give you a free estimate today!

A/C Maintenance

A/C MaintenanceIt’s easy to neglect about getting your air conditioner regularly maintained, but forgetting to keep it up will surely have negative consequences sooner or later. Not maintaining your cooling system increases the possibility of expensive repairs, premature wear and tear, and other potential problems. Paying attention to its health and efficiency means protecting your hard-earned investment in your air conditioning unit.

Nothing is worse than a broken air conditioner at the peak of the summer months. Setting up a preventive maintenance service saves thousands of dollars for expensive repairs and untimely system replacement. Get your A/C operating in peak condition throughout summer with a specialized maintenance plan coming from the experts.

If you haven’t scheduled a maintenance service yet, now is the time. Give us a call today!

Comfort Controls

Comfort ControlsAlong with high-performance heating or cooling equipment, getting a comfort control system is necessary to properly regulate your indoor temperature. Our residential thermostat and controls are designed to simplify your life without using too much energy in your home. We offer some of the state-of-the-art features on our thermostats, including touch screen controls, Wi-Fi capable control, voice control, optional alerts, and more.

 As a certified YORK dealer, we’re committed to providing products with seamless connectivity and advanced features to conveniently regulate your home’s temperature at the least energy costs. With us, your comfort is under control anytime and anywhere at home. Talk to our pros to learn more about comfort controls.

Greencastle Heater Repair

heater repairIn winter, you rely on your heating system to keep you cozy and comfortable indoors. But when it fails, you’re definitely in big trouble. Every minute that your heater is off, you’re at risk of extreme cold and health problems. The moment you noticed an issue with your heating system, there’s no time to waste for repairs.

Your heater is a complicated machine that requires experienced professionals to know your system shut down. Our technicians can handle both simple and complex repairs on various types of heating systems. Regardless of the issue that you run into with your existing heater, we can detect the problem and solve it right away. Contact us today for more information.

HVAC Tune-up

HVAC Tune-upIdeally, your cooling and heating systems must be examined and serviced at least once a year. Unfortunately, Pennsylvanian homeowners don’t realize the importance of HVAC tune-up until their equipment unexpected failed, leaving them uncomfortable under frigid temperatures.

What goes with a tune-up service is a huge return on your investment. Besides preventing unexpected failure, tune-ups also help your system recover its lost efficiency as it ages and improves your overall comfort. HVAC tune-ups aren’t everyone’s cup of tea, and only an experienced HVAC company should perform it.

Calling Johnston’s Heating & Cooling means you’ll get a comprehensive visual inspection, cleaning, and maintenance services for your HVAC system. Feel free to contact us for residential or commercial HVAC tune-up.



thermostatYour HVAC system works hand-in-hand with a thermostat. Whether your existing thermostat is manually-operated, Wi-Fi enabled, or programmable, it is vital that it is set at the right temperature. Just like your heating or cooling system, thermostats also operate under excessive wear and a lot of pressure. Over time, it might just stop working without notice.

In case you need a new thermostat to monitor and control your home temperature, we have the best options in the market. Choose from our complete line of thermostats suitable for your space. Whether you need a smart, programmable, or Wi-Fi connected thermostat, we have the exact product you need. Schedule a service today!

Our Air Conditioning Brand


YORK’s pledge to create quality products started over 140 years ago. Since then, YORK has heated or cooled some of the world’s most famous buildings, such as the Empire State Building, the English Channel, U.S. Capitol Building and the Sydney Opera House. YORK is committed to bringing their customers the highest quality products.

Local Reviews
for Greencastle, PA

Ivan W.

Ivan W.

Working on a new home in greencastle.with Johnston's Heating&Ac

Near Grant Shook Rd, Greencastle, PA 17225
Greencastle, PA - Working on a new home in greencastle.with Johnston's Heating&Ac
Tom J.

Tom J.

Installing new natural gas lines for a new home construction in Greencastle pa

Near Grant Shook Rd, Greencastle, PA 17225
Greencastle, PA - Installing new natural gas lines for a new home construction in Greencastle pa
Keith M.

Keith M.

New outdoor units for new house in Greencastle

Near Grant Shook Rd, Greencastle, PA 17225
Greencastle, PA - New outdoor units for new house in Greencastle
Keith M.

Keith M.

Replaced capacitor on a Lennox unit in Greencastle , Pa

Near Celestial Terrace, Greencastle, PA 17225
Logan T.

Logan T.

Replaced with new YORK system in Greencastle PA

Near Helens Rd, Greencastle, PA 17225
Greencastle, PA - Replaced with new YORK system in Greencastle PA
Logan T.

Logan T.

New system in Greencastle PA

Near Helens Rd, Greencastle, PA 17225
Greencastle, PA - New system in Greencastle PA
Logan T.

Logan T.

New house in Greencastle

Near Helens Rd, Greencastle, PA 17225
Tom J.

Tom J.

Installation of a new compressor in Greencastle, PA.

Near Hilltop Cir, Greencastle, PA 17225
Tom J.

Tom J.

Installation of a new outdoor unit in Greencastle, PA.

Near Castlegreen Dr, Greencastle, PA 17225
Tom J.

Tom J.

Service request for a family in Greencastle, PA.

Near E Pebblebrook Dr, Greencastle, PA 17225
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Feels like: 60°F
Wind: 3mph ESE
Humidity: 73%
Pressure: 30.22"Hg
UV index: 0
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