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(717) 204-8120

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Schedule Today

24/7 Emergency Service

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Whole House Generator Services in Pennsylvania

Power outages can happen without warning, leaving your home without the power you rely on for daily life.

A whole house generator keeps your home protected no matter what the weather brings. Haller Enterprises has supported homeowners across Central and Eastern Pennsylvania since 1981, and our team makes it easy to enjoy uninterrupted power and complete peace of mind with professional generator installation, repairs, and maintenance.

Call or schedule generator services online today!

Haller always has your back!

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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:

Generator

Backup Generator Repair

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Backup Generator Maintenance

Maintenance

Backup Generator Installation

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Electrical

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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Emergency Service

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Call (717) 204-8120 for a generator installation.

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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.

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(717) 204-8120

What Our Customers Are Saying

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4.7
Based on 2586 reviews
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John Moquin
Excellent service!
Efficient and knowledgeable
Janet Neville
Christian arrived on time, gave an estimate of service, and completed the job efficiently. He made a friend with my dog also.
Susan
Total A/C and Heat Pump system installed. The techs were very knowledgeable and answered all our questions. They were tidy and efficient. Explained operations of all units installed.
Luisito Honrade
We have a good experience with Mark. He’s been very helpful/supportive to us and he was able to give us option and listen to our concerns.
Jean Smith
Very professional and tells you exactly what is going on. Highly recommend.
Nikki Dysart
Ben was helpful and knowledgeable.
Eric Moore
Had our power lines to the house taken down during a big storm, the folks at Haller were great at getting out quickly to check out the damage and give us an estimate to repair. We put a down-payment down to reserve service, ended up not needing them, and they promptly refunded our payment with zero fuss. Good experience, I recommend them
Jean Porterfield
7/9/26 Carl Horning was magical as usual. Brilliant, all knowing, covers every base and has an unbelievable skill base that can’t be compared to.
Donald Palmer
Technician knowledgeable and professional. Completed work effiently and in a timely manner. Found issue after going through some steps to eliminate potential issues. Technician explained issue and what to watch for regarding it happening again.
Donald Humphrey
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.
Marc Paul
Nate was very nice to work with and very professional.
Tate Hammer
Repair man was amazing nice and kind , unfortunately it was on the 4th of July and the rates were a lot higher ! But the repair man was great would highly recommend
Terry Kauffman
Excellent experience with Shane Keifer on water heater installation. In addition a shout out to Amanda for helping get us booked in a very timely and friendly manner.
Linda Carlson
Christopher is wonderful and came out quickly . He is very professional and friendly. He took care of my central air and resealed the unit in the house. Closed the vents that are not being used to keep the cold air where I needed it. I would ask for Christoper the next time I had an issue.
M.A. M.
Haller is best.
Patricia Barconey
The technician, Adam, was excellent. He explained what the problems were, and showed me the problems on my outdoor fan. He was very patient and polite. I am hard of hearing, so he spoke louder. He fixed everything, and thought of solutions that had not been mentioned to me before – like using a 2" filter instead of a 1" filter to possibly cut down on filter changes (since I cannot change them myself). He also explained how the $24/month plan worked, and set me up for that when I decided to go with it. He answered all my questions. Adam is an excellent Haller employee.
Danel Hodgson
Prompt competent, courteous service
peter shu
Tech Nevin top notch w/ customer service. Extremely thorough.
MatthewF
Adam B was really amazing to have service my AC unit. He explained things thoroughly and completed everything in a timely fashion. Future services will request him.
Lance Eisele
Excellent service
Doug Phillips
Service tech, Phil R. arrived as scheduled, diagnosed the problem quickly and replaced the part on the spot. Thank you Phil for your professionalism and your kind, personable service.
Chatty Reprado
He did an excellent job. 👏 He is very friendly and kind.
Daryl Black
My air conditioner was repaired by Neffsville, but it failed again in just over a month. When it stopped working, I was told it would be four days before they could come back out (it’s 101 degree outside!).

I called Haller Enterprises instead, and they had a technician at my home within 24 hours. Jesse B. was knowledgeable, professional, and took the time to explain the issue and the repair. He diagnosed the problem quickly and completed the repair efficiently.

The difference in responsiveness and overall service was night and day. Based on my experience, I highly recommend Haller Enterprises for your HVAC needs. Thank you, Jesse, and the Haller team, for taking great care of us!
Steph Hilsher
Adam B. came out on an extremely hot day and got the air fixed up and running well as soon as they got my call. He was very polite and friendly and explained everything he needed to do. I would highly recommend the company.
Tom
Very courteous and explained what was going on very well.

Electrical Specials & Discounts

Take advantage of our current offers & coupons!

All Offers

  • $500 OFF

    Electrical Panel Replacement

    Expires:

    07/31/2026

    $500 OFF – Electrical Panel Replacement

    *Only on qualifying equipment. One per customer. Cannot be combined with any other offer or discount. Must be presented at time of service. Residential Only.

  • $500 OFF

    Kohler Generator Install

    Expires:

    07/31/2026

    $500 OFF – Kohler Generator Install

    *One per customer. Qualifying Kohler equipment only. Cannot be combined with any other offer. Must be presented at time of service. Residential Only.

  • $500 OFF

    Main Electrical Panel Upgrade

    Expires:

    07/31/2026

    $500 OFF – Main Electrical Panel Upgrade

    *One per customer. Cannot be combined with any other offer. Residential only. Must be presented at time of service.

  • 10% OFF

    Any Service Work for Seniors & Veterans

    10% OFF – Any Service Work for Seniors & Veterans

    *Cannot be combined with any other offer or discount. Residential only. Excludes new equipment install. Must be presented at time of service.

  • $50 OFF

    Any Repair

    $50 OFF – Any Repair

    *Call 888.565.0546 to redeem. One per customer. Residential only. Not to be combined with any other offer. Must be presented at time of service.

(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 8871 reviews
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Carrier Residential Factory Authorized Dealer
North American Technician Excellence - NATE - Certifying the Finest in HVACR

Call (717) 204-8120 for a generator installation.

Questions?

(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.

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Financing Options

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

Home Comfort Club

Maintenance plans starting at

$39 /mo

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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

Call (717) 204-8120 for a generator installation.

Questions?

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.

Pennsylvania Locations
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Quality, Friendly Service in Central & Eastern PA

(717) 204-8120

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.

Generator Information Request Form

Please submit the form below and a customer service representative will contact you shortly with more information about a backup power generator.

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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