7 AM - 5 PM, Monday - Friday

Saturday - Seasonal / Sunday - Closed

7 AM - 5 PM, M - F

Looking for HVAC Service in Hummelstown?

We Provide Quality You Can Feel, & Service You Can Trust

💵 Transparent Flat‑Rate Pricing

🏅 Licensed Technicians

🔄 Proactive Maintenance Plans

🕑 24/7 Emergency Support

★★★★★

5.0 (170+)

Get 24/7 Emergency HVAC Support in Hummelstown PA

Your Hummelstown, PA Family-Owned HVAC Company

At Legacy Comfort Systems we are Hummelstown’s go to company for honest, reliable and efficient HVAC services. As a family owned business we are deeply rooted in the community and treat every home and business like it’s our own.

From hot Hummelstown summers to cold Hummelstown winters our licensed and insured technicians know the local climate and how to keep your indoor space comfortable all year round.

Upfront flat rate pricing and 24/7 emergency service so you can count on us whenever you need us.

See What Our Customers Are Saying

Don’t just take our word for it—hear what satisfied Hershey area residents have to say about their experience with LCS Heating and Cooling:

Jason and his team did a fabulous job converting my electric furnace to a dual fuel furnace. They did not miss a single detail, and swept and vacuumed upon completion. Jason walked me through what they had done and the operation of my new thermostat. They are absolutely great!!!

I recently was in the hospital getting ready for open heart surgery when my wife, who had stopped home to get things needed for a long hospital stay, called me and told me the water heater was leaking. It was later in the day but I called LCS to see what they might be able to do. They were closed but they texted me back anyway. I explained the situation to them and they were very accomodating. They said they could have a new water heater installed the next day. We made arrangements for our daughter to be there and they did in fact show up and install the water heater the next day. I was also able to wait until I got out of the hospital to pay the bill. These guys are just so nice to deal with. Instead of a headache on top of what I was dealing with I got a solution that took care of my problem. I would highly recommend LCS to anyone. You can't go wrong. They know what they're doing and they are very customer centric and just down to earth friendly people. I can't say enough about them.

What an awesome experience with LCS! Jason, Jon and Patrick replaced my new heat pump within a day. They are all very throughly, neat. They also explained all my concerns or questions patiently. This team is the best!

The best service and fair price. Another company tried to rip me off for almost double the price and Jason. Let me know what the price would be from the beginning with no runaround. He treated me like an intelligent human being and I would recommend them to anybody.

LCS did a fantastic job replacing our old oil furnace and central air HVAC systems. From the first visit I could tell Jason knows his stuff. He explained everything in layman’s terms and made sure I understood what was going to happen. After selecting LCS we were pleased in how quickly they were able to get the job scheduled and completed. Our new Heat pump system is so much better than the old oil system. It’s quiet, efficient, and does not have that smell. Jason, Pat, and John worked well as a team each getting their part done and letting me know along the way how the process was going. I am really happy with our choice to go with Legacy Comfort Systems and you will be too.

All‑In‑One HVAC Care for Hummelstown Residents

New AC Installation

We help you select and install the perfect air conditioner to keep your Hummelstown home cool and comfortable all summer long.

AC Maintenance & Repair

Ensure your AC runs efficiently year-round with thorough tune-ups and prompt repairs from our licensed technicians.

Mini Split Installation

Add a ductless mini-split system to efficiently heat or cool any room, even if your home doesn’t have ductwork.

Gas Furnace Installation

We accurately size and install energy-efficient gas furnaces to keep your home warm during Hummelstown’s cold winters.

Gas Furnace Maintenance & Repair

Our experts inspect and service your gas furnace to keep it running safely and extend its lifespan.

Gas Boiler Installation & Replacement

We remove outdated boilers and install modern gas boilers for consistent, reliable heating in your home.

Heat Pump Installation & Replacement

We install and replace heat pumps that provide efficient heating and cooling tailored to Hummelstown’s climate.

Request HVAC Services in Hummelstown, PA

Why Choose Our HVAC Company, LCS Comfort, for Hummelstown, PA?

As your local Hummelstown HVAC experts we show up on time with licensed techs who are fully equipped to fix any heating or cooling problem.

Transparent flat rate pricing means you know the total cost upfront – no surprises. 24/7 emergency service means you can call us anytime you need help.

We stand behind every job with financing options and a satisfaction guarantee so you can be worry free all year long in your Hummelstown home.

How It Works in 3 Easy Steps

Schedule Your Free Quote: Click “Request Service” or call us to book a convenient, no-obligation appointment.
In‑Home Assessment & Proposal: Our licensed technician arrives on time, evaluates your system, and provides clear, flat-rate options customized for your Hummelstown home or business.
Fast Installation & Ongoing Support: Once you approve, we get started promptly—backed by 24/7 emergency service and proactive maintenance plans to keep you comfortable year-round.