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Complete Solutions for All Your Whole House Generator Needs

Whole house generators include complex electrical and mechanical components that take expert service to perform reliably.

Whether you are planning an upgrade or need routine maintenance, you want a team of professionals who understand how these systems work. Our licensed electricians can assist with:

Our team understands the ins and outs of local electrical systems, and we tailor our generator services to your home’s specific needs.

(717) 204-8120


Your Local Whole House Generator Experts

You hope you will never need your whole house generator, but you want to be sure it is ready to perform when you do.

Homeowners trust Haller for our deep roots in the local community and decades of hands-on experience. We understand the unique power challenges in Central and Eastern Pennsylvania, from severe winter storms to summer thunderstorm outages, and customize our solutions to keep your home reliably protected.

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Scheduling Whole House Generator Services Couldn’t Be Easier

Getting generator service from Haller is straightforward, and our team handles the details from the first call to the final walkthrough.

Give us a call or fill out our online form to get started. Our friendly team will gather a few details and help guide you to the right solution for your home.

We offer flexible scheduling options to make it easy to book a time that works for you. Our team will coordinate your appointment and provide clear communication leading up to your service.

A licensed Haller electrician arrives on time, ready to assess your generator and complete the work efficiently. We walk you through the process, answer your questions, and confirm everything is working properly before we leave.

Haller technician greeting woman at her door with a handshake

(717) 204-8120


What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2721 reviews
Wesley arrived at the designated time frame the appointment was made. He answered all are questions and addressed the concerns we had. The HVAC inside system is located in the attic and is not easily accessible. Wesley brought a ladder and was able to get the job done. He was very polite and honest. He also made sure to wear foot coverings while inside the house. A job well done!
Giora Bendor
1 day ago
Checked my instant water heater as part of the maintenance contract.ordered gasket was mishandled causing delay in repair.
Stewart Abowitz
2 days ago
Connor is very knowledgeable of the repair he needed to do.
Mary Wright
2 days ago
Nicholas was knowledgeable, efficient, tidy and punctual. Very easy to work with him.
Donald Humphrey
2 days ago
The service was extraordinary. My service person was polite, informative and customer centric. This person is the type of person you want engaging with people. I also learned some good ac and furnace tips. I give Shane 5 stars….out of 5.
Pat ONeill
2 days ago
Larry knew his stuff!
Sent me pic of technician that would be doing the service. This is great. Work was done professionally and methodically ensure all components inspected and verified.
Alyssa Lewis
3 days ago
Nevin was great and super helpful! Will definitely recommend Haller to family, friends and clients! Thank you!!!
Gus G
3 days ago
The tech was very thorough. Friendly and knowledgeable. Arrived on time.
Lindsey Key
3 days ago
Exceptional service, got us in a timely manner and they were very clear at explaining everything that was being fixed.
Beth Watters
3 days ago
The technicians are very knowledgeable very professional courteous couldn’t ask for any better
Todd Novinger
3 days ago
Nathan was prompt did a great job and had been here previously which was a plus
David Acaster
4 days ago
We had been having air conditioning issues for a couple years where we had to fix it multiple times a year. We discussed the issues with our current air conditioning repair company who said the problem was the ac was getting near end of life and was struggling to keep the house cool when it got hot out. We asked them to give us a quote to replace the system. The person who came out only wanted to sell us on heat pumps and a lower quality air conditioner than what we had. So we contacted Haller to come out to give us a second opinion. One of their sales people ( Alex Steffy) came out looked at our current system and provided us with a variety of options to address our issue. He was very professional knowledgeable and polite. He explained why we had issues and how we should possibly remedy them. He provided 3 separate quotes outlining exactly what what equipment we would be getting and the cost for each option. The installation was done quickly and professionally by two gentlemen. The even offered a 5 year warranty though Haller in addition to the 10 year warranty by carrier. They may be a bit more expensive but I believe the service and care your get from them is worth the extra money.
Dennis Jeff
4 days ago
Excellent efficient service. Pleasant personality.
Leo D'oro
4 days ago
I scheduled a full HVAC inspection and service going into this winter season. Haller tech Shawn arrived on schedule inspected the system and while delivering not the best of news gave me a number of very satisfactory solutions, that was on a Friday, Tuesday the following week the installers arrived. The HVAC installation team, Edwin and Conner were on time, exceptionally courteous, knowledgeable. The entire old system was dismantled, removed and the new system installed. The final price was exactly as quoted by Haller rep. Josh Rivera and the new HVAC system is 100% operational. If you need to work with a professional staff send for Haller.
Terri Armstrong
4 days ago
The guys were wonderful! Kind and very informative. Thank you
Terry Kauffman
4 days ago
When I went to turn on furnace for the year it would not start. Called Haller and Nevin arrived diagnosed the issue and determined it was a board failure. They ordered the part and installed it next day all fully covered by warranty. Excellent work by nevin and the Haller team.
Very professional, pleasant, and efficient. I hope he is sent on my next service.
Keith Belles
5 days ago
The tech Phillip that can to our house for service was so professional and broke down everything very understandably. My system was checked and he gave me peace of mind. If I have any issues ever with my system again I will be giving these guys a call!
Lazer Randolph
5 days ago
Very friendly and efficient.
Addie Bothell
5 days ago
Kenneth performed annual check-up on my AC unit today. Very professional, thorough and informative.
Don Fuhrman
5 days ago
Nicholas from Haller arrived timely, did the plumbing maintenance check. Replaced two water filters and recommended an upgrade on our sanitation UV light (we are on a well). He was polite, efficient, and did everything quickly and neatly. I don't know what more you could want. After years of great service from Haller, Nicholas fell right in line with the great service we expect from Haller.
Ken Patton
6 days ago
The service tech (Westley Walters) was vey professional and through. He explained everything he was doing.
Angel Sample
6 days ago
I'm very satisfied with the service, everything was explained, very professional.
Karen Chesbro
6 days ago
Very fast and efficient service. They came out the same day I called and had our heat pump working

(609) 799-3434

Whole House Generator Repair Services

If your whole house generator is not performing as it should, address the problem before the next outage hits.

Haller provides dependable generator repair services to identify the issue, complete lasting repairs, and restore your system’s reliability across Central and Eastern Pennsylvania.

A failing battery or electrical connection can prevent your generator from starting when you need it most. We replace worn components and restore proper electrical function so the system runs reliably.

Clogged fuel lines, old fuel, or faulty fuel components affect performance or stop your generator from running altogether. Our team cleans, repairs, and restores your fuel system for consistent power output.

Issues with the starter motor or ignition system make it difficult or impossible for your generator to turn on. We diagnose the root cause and perform precise repairs to get the system running smoothly again.

Malfunctioning controls or sensors lead to inaccurate readings or system shutdowns. We repair or replace these components so your generator operates safely and responds correctly during an outage.

The transfer switch is what moves your home from utility power to generator power during an outage. When it fails, your generator runs but your home stays dark. We diagnose and repair transfer switch issues to restore proper operation.


24/7 Emergency Whole House Generator Service

When Your Generator Fails, We Respond Around the Clock

A generator that will not start during a storm or power outage leaves your home exposed. Haller’s licensed electricians are available 24/7 for emergency generator service across Central and Eastern Pennsylvania, getting your backup power back online as quickly as possible.

(717) 204-8120

4.7
Based on 9623 reviews
powered by Google

Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR

(717) 204-8120

Whole House Generator Replacement Services

Even the best generator will need replacement eventually, especially when it is no longer keeping up with your home’s power needs.

Haller’s generator replacement services make it easy to transition to a more reliable, efficient system tailored to your home.

If your generator needs constant repairs or struggles to stay running, replacement is the more cost-effective option. Ongoing issues leave your home vulnerable during an outage.

A generator that cannot deliver steady, reliable power may not fully support your home when you need it most. Replacing it ensures your essential systems stay up and running without interruption.

Most generators have a limited lifespan, and older systems are more prone to failure and inefficiency. Upgrading to a newer model provides improved performance, reliability, and peace of mind.

If your generator hesitates to start or fails to kick on automatically during an outage, it may no longer be dependable. A replacement ensures your home is protected the moment power is lost.

If your home’s electrical demand has grown since the generator was installed, the system may no longer have the capacity it needs. A properly sized replacement handles your actual load.

Whole House Generator Maintenance

Keeping your whole house generator in top condition is essential for dependable backup power when you need it most.

Haller’s generator maintenance services keep your system running efficiently and always prepared for an outage. Consistent maintenance delivers the following benefits:

Regular testing and service confirm the generator will start and run when you need it, not fail the first time you lose power. 

Routine fluid changes, component inspection, and cleaning reduce wear, adding years to the usable lifespan of the generator.

Small issues caught during maintenance do not turn into the failures that leave your home dark during the next storm.

A well-maintained generator delivers clean, consistent power that protects your home’s electronics and sensitive equipment during an outage.

(833) 222-2953


Homeowner greeting Haller technician at the door for maintenance

The Haller Home Comfort Club

Complete Home Protection with One Simple Plan

Generator owners already think differently about their home. You plan ahead, reduce risk, and make sure critical systems keep running when conditions are unpredictable.

Power outages across Central and Eastern Pennsylvania can happen without much warning, and when they do, everything from heating and cooling to sump pumps and refrigeration depends on how prepared you are. A generator covers the outage, but the rest of your home still needs to perform when power is on.

Home Comfort Club supports that same proactive approach by keeping your HVAC, plumbing, and electrical systems on a consistent maintenance schedule. Priority scheduling and member savings make it easier to stay ahead of issues and protect the systems your generator is there to support.


Professional Whole House Generator Installation

Installing a whole house generator is one of the best ways to protect your home from unexpected power outages.

Haller’s generator installation services provide a seamless, stress-free experience while ensuring your system is perfectly matched to your home’s needs.

Standby generators are permanently installed outside your home and automatically turn on when the power goes out. They provide seamless, whole-home coverage without any manual intervention.

These generators connect directly to your home’s natural gas line for a continuous fuel supply. They offer reliable, low-maintenance operation and are a popular choice for long-term backup power.

Propane-powered generators are a great option for homes without access to natural gas. They deliver dependable performance and can be paired with on-site fuel storage for added convenience.

Partial-load generators power essential systems like HVAC, refrigeration, and lighting during an outage. They provide a more budget-friendly solution while keeping your home safe and functional.

Every whole house generator installation includes the transfer switch that safely moves your home between utility and generator power. Our licensed electricians handle the transfer switch installation to code so the system operates safely.

Haller van parked on the street in a local neighborhood

(609) 799-3434

Pennsylvania’s Trusted Generator Pros

Every Haller electrician is fully licensed and trained to meet Pennsylvania electrical codes, which keeps your home and family safe on every job. Safety comes first on every call, from the initial installation to every follow-up service.

We make booking service simple with online forms, phone scheduling, and flexible availability. Our friendly team keeps you informed from first contact through completion.

Power issues do not follow a schedule, and neither do we. Our team is ready to respond quickly to urgent generator concerns across Central and Eastern Pennsylvania.

Four decades of electrical work across the Lehigh Valley, Lancaster County, York, and Harrisburg has given our team a clear understanding of what homes in this region need. That local experience shows up in every job.

Financing options are available for qualified homeowners to make whole house generator investments more manageable. You can enjoy reliable backup power now and handle the cost on terms that fit your budget.

Haller is a BBB Accredited Business, and our licensed electricians meet Pennsylvania’s professional standards. Those credentials reflect how we operate with every homeowner we serve.

Our Home Comfort Club covers your HVAC, plumbing, and electrical systems with annual service, priority scheduling, and exclusive savings. One plan keeps every system in your home protected.


Male Haller tech with tool bag entering residential home smiling.

Schedule Your Whole House Generator Services

A whole house generator is an investment in your home’s comfort, safety, and peace of mind.

With Haller, you can feel confident you are getting the most out of that investment. Contact us today to schedule your whole house generator service across Central and Eastern Pennsylvania.

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Whole House Generator FAQs

How does a whole house generator work?

A whole house generator automatically detects when your power goes out and turns on within seconds. It supplies electricity to your home through a transfer switch, keeping essential systems and appliances running until utility power is restored.

How often should my generator be serviced?

Generators should be serviced at least once a year, or according to the manufacturer’s recommendations. Regular maintenance ensures reliable performance and prevents the unexpected breakdowns that leave your home without power when you need it.

What size generator do I need for my home?

The right generator size depends on your home’s square footage, electrical load, and which systems you want to power. Our licensed electricians can assess your needs and recommend the right option for reliable coverage.

How long do whole house generators last?

With proper maintenance, most whole house generators last 10 to 20 years. Routine service and timely repairs play a key role in extending the lifespan of your system.

Can a generator power my entire home?

Yes, many generators are designed to power your entire home during an outage. Depending on your needs and budget, you can also choose a system that prioritizes essential appliances and systems.

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