We've been keeping Lancaster County homeowners warm since 1997. Whether your furnace needs emergency repair, a complete replacement, or regular maintenance to stay dependable, J&G Heating & Air Conditioning brings nearly three decades of real-world expertise to every job.
Every furnace situation is different. Whether you need emergency repair because your heat just went out, a replacement quote for an aging system, or routine maintenance to avoid a breakdown this winter, our team will listen to what’s happening and explain your options clearly—with no pressure to buy bigger than you need.
We understand that not everyone feels comfortable with furnace talk. Our technicians explain things in plain language, answer questions without judgment, and never recommend more than you actually need. You’ll get a written estimate before any work begins, and you can always get a second opinion if you want one.
We serve homeowners across Lancaster County, from Ephrata to Denver, Columbia to Lititz, and throughout Lancaster itself. We’re based in nearby Conestoga, which means quick response times for emergency calls and local expertise in how Lancaster County homes are built, how our climate challenges furnaces, and what solutions work best in our region.
Every furnace service we do follows the same proven process—designed to deliver accurate diagnosis, honest recommendations, and professional workmanship. Tap any step below to see exactly what happens.
When you call, we ask key questions: Is it completely out? Cycling on and off? Making strange noises? Producing less heat than usual? We dispatch a NATE-certified technician who arrives ready to listen to what you’re experiencing and inspect the system in detail. For emergency calls, we prioritize and aim to arrive the same day—most urgent calls are handled that way. For routine maintenance or non-emergency repair, we schedule at your convenience, often within a day or two.
Once we diagnose the problem, we explain it in plain language—no jargon, no pressure. If the repair is straightforward and worth doing, we’ll quote it for you. If the furnace is aging, parts are hard to find, or repair costs are climbing toward replacement price, we’ll show you replacement options with honest comparisons. We don’t decide for you—we give you the information to make a confident choice.
Our technicians follow the equipment manufacturer’s specifications exactly—every step. For repairs, we use quality parts matched to your system’s age and model, never cutting corners with the cheapest option. For installations, we size the furnace to your home’s actual heating load (not just pick the biggest available), prepare ductwork properly for airflow, and seal every connection.
Before we leave, the system runs through a complete test cycle. You’ll hear it start, feel the heat begin moving through your home, and see us verify that your thermostat controls it properly. We provide a written service record and walk you through any settings or seasonal maintenance that keeps the system running strong and efficiently.
After the work is complete, we stay reachable. If you have questions or concerns in the days following a repair or installation, you can reach us directly—not a voicemail or answering service, but someone who can help. We also recommend annual maintenance tune-ups before winter to keep your furnace efficient and prevent mid-season breakdowns when you need the heat most.
We believe every homeowner in Lancaster County deserves access to reliable heating and cooling — regardless of budget. That’s why J&G Heating & Air Conditioning partners with trusted financing providers to offer flexible payment plans that fit your financial situation. Whether you’re replacing an aging boiler, upgrading to a high-efficiency air conditioning system, installing a high-efficiency heat pump, or investing in a new generator system, financing allows you to enjoy the comfort you need today while spreading payments over time.
Our team will walk you through every available option during your free estimate, helping you understand monthly payment amounts, interest rates, and approval requirements. We want the financial side of your project to feel just as comfortable as the temperature in your home.
As an authorized Wells Fargo financing partner, J&G Heating & Air Conditioning offers a range of credit options to help you manage the cost of your new heating or cooling system. With competitive rates and flexible terms, qualifying homeowners can enjoy convenient monthly payments that fit comfortably into their household budget.
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Through our partnership with PowerPay, we provide another trusted financing pathway for Lancaster County homeowners ready to upgrade their home comfort. PowerPay’s streamlined application process and flexible repayment plans make it easy to get started on your project without delay.
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GoodLeap offers flexible financing options and competitive rates, making it easy for homeowners to invest in high-efficiency heating, cooling, and generator systems. With a simple application process and a variety of repayment terms, upgrading your home comfort doesn’t have to mean a large upfront cost.
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When you join one of our maintenance programs, you’ll receive scheduled tune-ups performed by our NATE-certified technicians who know your system inside and out. We’ll clean critical components, check refrigerant levels, inspect electrical connections, test safety controls, and ensure everything is operating as it should.
Regular maintenance doesn’t just prevent breakdowns — it also helps lower your energy bills and protects your manufacturer warranty coverage. It’s one of the smartest investments you can make in your home’s comfort and your family’s safety.
Whether your furnace won’t start, runs inefficiently, cycles on and off constantly, or you’re ready for a new high-efficiency system, J&G Heating & Air Conditioning is ready to help. Our NATE-certified technicians bring nearly 30 years of real-world experience in Lancaster County. Our family ownership means we stand behind every job—you’re not dealing with a national chain; you’re working with neighbors who live here and care about your comfort.
For emergencies, contact us now and we’ll dispatch a technician the same day. For routine maintenance or replacement estimates, pick a time that works for your schedule and we’ll call to confirm. We’ll explain every option, answer all your questions, and never pressure you toward a choice you’re not ready for.
For when something stops working or isn’t performing right—emergency and scheduled repair.
Furnace RepairWhen it’s time for a new system and you want to understand your options.
Furnace InstallationTo keep your system ready every fall and prevent winter emergencies.
Furnace MaintenanceOne system to handle both heating and cooling with excellent efficiency.
Heat Pump RepairHydronic heating repair, installation, and maintenance for radiator systems.
Boiler Repair
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