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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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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 2564 reviews
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Pamela Shenenberger
Vincent replace our water heater with a tankless one. He is a extremely polite gentleman and explained all things very well. He work long and hard and did a couple extra jobs while here. I would not hesitate to ask for him for anything else needed. Thank You Vincent
Daniel Snyder
Daniel diagnosed the problem quickly and explained everything well.
Charles Sloden
Nevin was courteous, professional and got right to work. Haller's employees always are. Nevin is the kind of employee who relates well to Haller's cusomers..
Donald Lowell
The technician Nicholas showed up on time as all Haller technicians do! We needed a leak fixed under our kitchen sink and a new faucet installed. The leak was coming from the garbage disposal and asked him if it could be taken out and replace just with plumbing for that side of the sink. He gave me great prices and performed the work in about three hours and was very thorough and cleaned up all the way out to the front door.
Andrew Witzel
Update 1/2026: I continue to be impressed with Haller and their professionalism and capability. They take the time to explain what's going on and why something should or shouldn't be replaced. The One Call Club continually pays for itself every year!
We have had our system (installed by Haller) for a few years now and use the annual maintenance contract. The last three visits from Haller have been by the same gentleman and he's been absolutely fantastic to work with. He has taken the time to explain options, why something should or shouldn't be addressed immediately and has answered every single question I've had about our system. I'm curious about mechanicals and ask a LOT of questions so it takes a little to get through the answer sometimes. They have always been professional and respectful of my home and cleaned up after they were completed their work. I have recommended Haller to several of my family and friends because its rare that a company is always this easy to work and deal with. I'm going to be a long term customer for sure and am happy I decided to go with Haller for my HVAC installation. Thanks for the awesome experience!!
Timothy McFarland
Experience in 2026 for electrical:
Haller came out and helped me with an electrical issue I had. They came in the evening, patiently described my issue and helped me understand my electrical box. I appreciate the help Jason B. Gave us!

This is an experience for Haller in summer of 2020:
I have a heat pump. It sucks and blows, I know, I’ve heard the jokes.

But we had an issue recently where our heat worked but our AC only blew hot air. Steve Wakefield, one of the techs from Haller, came out to see what the problem was. He spent several hours with me helping me understand the issue and informed me that the best option would be to replace the unit.

One thing I need to mention — this was a second opinion. The first HVAC company told me that it was busted and the only option was a full install, so I was quoted for a price between 8k – 10k for a heat pump install. Normally a fullInstall would be necessary, but Steve, who provided me with my second opinion, was able to call a supplier right at my house and confirm that they had my outdoor unit in stock and it was compatible with the basement unit.

I then got a quote for a full install just in case; they did everything virtually due to COVID, but it was so seamless. The full install option would be $600 less than the competitor with additional services included!

I have been amazed by Haller’s service and Steve’s desire to really go the extra mile to help me understand my decision.
Robert Taltoan
He was on time,he let me know exactly what he was doing. He'd showed me what the problem was and what could happen. He was very thoughtful and informative and of course very friendly. Yes, I would recommend him to my home 🏡. That's why I like having Haller Enterprise for my home needs.
Claude Brogunier
Would like to give positive comment to Jessee and Austin- your two technicians who did a great job on problem-solving our AC unit recently
Daniel McIlroy
Ken was excellent including his explanations!
Mitchell Mondo
My service tech was very knowledgeable and did an excellent job explaining my system and the condition it is in. He was very professional and friendly.
Kenneth Blessing
Outstanding….best technician yet!
thomas Schneider
Did a great job on our AC installation
Iris Tatar
We had annual maintenance performed on our air conditioning and then had to make a call later in the week for our garbage disposal. Both times our technicians, Brayden and Trenton, were polite, professional, on time, and efficient. Even the receptionist was on point with our issue, courteous, and a pleasure to speak with.

Each technician provided follow-up advice and key things to be watchful of. We are beyond pleased with the services Haller provides as well as their staff and technicians. The service fee is reasonable and the maintenance contract we have for our A/C is a cost saver.
Larrimore Anderson
Gabe from Haller Enterprises arrived promptly when scheduled. He listened carefully to my questions/concerns and then made an honest effort to find answers/solutions. Although no immediate resolution to the main issue was found, Gabe promised to continue his search on his own and contact me promptly when he had success.
Andrew Peterman
I used Haller Enterprise to replace some plumbing and was very pleased.
The Inn at Centre Park
Needed emergency service and they were there within a few hours. Great service. Friendly and efficient.
Bryan Shade
Brandon did a great job replacing a shower valve. He also cleaned up after the job was complete. We will definitely use Haller in the future.
Cheryl Caruso
Excellent Service. Pleasant technician!
Erin LMartin
Christopher is my maintenance tech who comes out twice a year. He does a great job and is always honest and clear. Appreciate his patience as I do have 3 dogs and he is always accomodating. Thanks!
Adam Clark
My AC stopped working on a Saturday evening. The repairman was here in under an hour. The condensate pump had failed. He replaced it and was on his way in under 30 minutes. He asked management if the service call fee could be waived since the annual maintenance had recently been done and that lowered the bill by $200. This is a high character company with customer oriented employees. Five stars.
James Nixdorf
Nevin is top tier. Comes up with solutions and executes a plan like if it was his own home. Very dedicated for a successful outcome at a fair cost.
Mark Dunkum
Haller diagnosed the issue with my whole-house water filtration system quickly. It was repaired quickly as well. Friendly service person who explained the issues and solution to me. I already had their service plan for one hvac system, so I converted to a whole home plan to cover the water and upstairs hvac as well.
nicholas A
Great service with great advice. I was very happy with my experience and maintenance.
Phil was awesome.
Cara Tiedeken
A technician by the name of Hunter came out to fix our air conditioning unit. He was very thorough and informative. He was able to diagnose the issue quickly and efficiently. We were very pleased with his service.
Marty Murphy
Fixed our heat pump. Nevin was professional and courteous.

Electrical Specials & Discounts

Take advantage of our current offers & coupons!

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  • $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

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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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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.

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(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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We’re Here to Help!

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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