Emergency Furnace Replacement
You can’t always plan for furnace replacement, and sometimes your system fails without warning.
Haller understands that being without heat in the middle of a Pennsylvania winter is not an inconvenience, it is a situation that needs to be addressed fast.
When a furnace quits on a January night with temperatures dropping into the 20s or during a stretch of sub-freezing weather in February, waiting until morning is not an option. Our HVAC technicians are standing by to respond quickly and restore heat to your home.
Call our team today if you need emergency furnace replacement.
24/7
Emergency Service
54,133
HVAC Systems Serviced
9,325
Drains Cleared
254
Trucks on the Road
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How to Schedule Your Furnace Replacement
Scheduling your furnace replacement with Haller is straightforward and designed around your convenience.
We keep the process clear and direct so you can move from your current situation to a working system without unnecessary delays.
Call us or submit a request through our website to get started. Our staff will gather details about your current system, including its age, fuel type, and how it has been performing. We will get your consultation on the calendar at a time that works for you, whether you are in Allentown, Lancaster, York, or anywhere across our service area.
An experienced comfort specialist visits your home to assess the existing furnace, evaluate the ductwork, and measure what your home actually needs. This means reviewing the current system’s capacity, fuel source, venting, and duct condition alongside your home’s insulation and square footage, because a furnace sized wrong for the home it is heating in a Pennsylvania winter will underperform from day one.
We walk you through replacement options, including efficiency ratings, single-stage and two-stage or modulating configurations, and fuel type considerations. You will receive upfront pricing and clear explanations. There is no pressure to decide on the spot.
Our NATE-certified technicians remove the old system and install your new furnace with a focus on safety and precision. Before we leave, we test the system under operating conditions, verify proper combustion and venting, check airflow throughout the ductwork, and confirm the thermostat and safety controls are functioning correctly. A furnace replacement is only finished when the system has been verified under load.
Call (717) 204-8120 for furnace installation and replacement.
Questions?
Why Homeowners Trust Haller for Furnace Replacement
Replacing your furnace is a significant decision, and you want the right team handling it.
Haller has earned the trust of homeowners across Central and Eastern Pennsylvania through decades of dependable work and a process that keeps you informed at every step.
Our technicians are NATE-certified, and Haller is both a BBB Accredited Business and a Carrier Factory Authorized Dealer. That combination means your replacement is handled by technicians trained to manufacturer standards, working with equipment they know inside and out.
Haller has been working in Central and Eastern Pennsylvania since 1981. Four decades of Lehigh Valley winters, Lancaster County cold snaps, and York and Harrisburg heating seasons have given our team a deep familiarity with what it takes to size, install, and commission a furnace that performs through all of it.
A new furnace is a major investment. Haller offers flexible financing for qualified homeowners so you can move forward with the right system now and manage the cost over time rather than waiting for a full breakdown to force the decision.
Furnace failures do not follow a schedule. Our team is available around the clock, so if your system goes down on a January night in Bethlehem or during a cold snap in Lancaster, you are not left waiting until morning for someone to call you back.
Every replacement follows strict safety procedures for combustion, venting, gas or fuel connections, and electrical setup. We do not consider the job finished until the system has been fully verified under operating conditions.
We keep you informed at every step. You will know what we recommend and why, what the work involves, and what it costs before we begin. No surprises on installation day and no pressure before you decide.
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Protect Your New Furnace with the Home Comfort Club
Now that you have a new furnace, a little routine care goes a long way.
Haller’s Home Comfort Club is designed to protect your home’s HVAC, plumbing, and electrical systems with scheduled tune-ups, priority service scheduling, and exclusive member savings. It is a simple way to stay ahead of costly problems across every system in your home. Contact our team to learn how to sign up.

Home Comfort Club
Maintenance plans starting at
$39 /mo
Schedule Your Furnace Replacement
If your furnace is no longer delivering the comfort and efficiency your home deserves, Haller is here to help.
Do not wait for a breakdown in the middle of winter to make the call. Our team serves homeowners across Central and Eastern Pennsylvania and will guide you through the full replacement process to make sure the right system is installed safely and correctly in your home.
Contact us today to schedule your furnace replacement consultation.
Frequently Asked Questions
How do I know if I should repair or replace my furnace?
Age and repair history are the two biggest factors. If your furnace is under 15 years old and the issue is isolated, a repair usually makes sense. But if the system is 15 to 20 years old, has needed service multiple times in recent winters, and is struggling to keep up during Pennsylvania cold snaps, the math shifts. A furnace that is defaulting to emergency service calls in January is already telling you it cannot do the job on its own. Our technicians will give you a straight answer on which direction makes sense for your specific situation.
How long does a furnace replacement take?
Most furnace replacements are completed in a single day. Our team removes the old system, installs and connects the new unit, verifies combustion and venting, checks airflow, and runs full operational testing before leaving. If the installation involves ductwork modifications, venting changes, or fuel source adjustments, the timeline may vary. We walk you through what to expect before work begins.
What size furnace do I need for my home?
Sizing a furnace correctly requires a load calculation that accounts for your home’s square footage, insulation levels, window placement, and how the existing system has actually been performing through Pennsylvania winters. An undersized furnace will fall short on the coldest nights. An oversized unit will short-cycle, deliver inconsistent heat, and wear out faster. Our comfort specialists do not skip this step. Getting it right on the front end is what determines whether your new system performs the way it should years from now.
Will a new furnace lower my energy bills?
Yes. Modern high-efficiency furnaces operate at efficiency ratings of 95 percent or higher compared to 60 to 80 percent for older units, which means more of every dollar of fuel turns into heat for your home. In Central and Eastern Pennsylvania, where your furnace runs heavily from early December through early March, replacing an aging unit with a properly sized, high-efficiency system typically produces a meaningful and consistent reduction in monthly heating costs across the entire winter.



