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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.

(717) 204-8120

What Our Customers Are Saying

Learn More About Our 100% Satisfaction Guarantee

4.7
Based on 2533 reviews
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carl hrbac
Inspected and will replace heating system.
Nichole Azpeitia
Thorough, helpful, and efficient.
Kylec
A/C stopped working on a hot day and the prompt service sold me, had a tech at my house a few hours after calling, a simple fix and money well spent
David Guyer
Very prompt, efficient, and the repaired device is working perfectly.
Steve D
Joshua came out for a electrical inspection on our initial contract. He was all business and knocked it out in around 30 minutes. Nice guy…very professional
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.
Nancy Chapman
Systems check up – did a great job very efficiently once arrived. Was a little Kate due to heat wave related emergencies!
Steve Lazun
Jesse is extremely knowledgeable. He diagnosed the problem with my AC that others had missed.
Tom C Reed
We purchased our HVAC system from Haller and also established a service contract. Today, Haller sent Christian to service our unit. He was right on time and quickly performed the checkup. These guys do a good job!
Katherine Eberly
Jesse was personable and professional! More than willing to answer questions and informative during the entire visit!
Mark Schettler
The Haller representative arrived punctually, and completed the inspection of our air conditioning system in a timely fashion. He also took the time to describe what he did, and the functionality of said system. He completed all of this in a very friendly and professional manor.
Karen Bryan
My experience today was great.my technician was prompt, courteous, thorough and extremely professional. I'd certainly recommend.
Kelly Grimes
Ron was excellent
Dave Culbert
These guys came out same day and did an excellent job. Customer service and workmanship is great. I love how they have 24/7 service. Would recommend them to anyone.
Luz N. Pagan Otero
Excellent service!
Ted Foots
Micheal came put and was GREAT! They sent him in a timely manner
Stephen Smith
Colin did a good job. We as yet haven’t solved the problem
Tracy
Jared is very professional, great attitude and attention to detail. Stellar service is always greatly appreciated and highly recommend Haller Enterprises for heating and air conditioning. Thank you for speedy and efficient service!!!
Ed Stone
Phil was very friendly and even enjoyed our two dogs and gave them a lot of love. Work was done effectively both inside and outside.
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.
Domenic Martelli
In an out very professional
Jeannie D'Amico
Don Humenik was our technician. He came with another technician, I think his name was Larry though did not get a last name. I could not ask for a more professional, helpful and friendly experience. We just moved into our house which had one prepaid maintenance visit left from the previous owners. They honored that last maintenance check and so there was no fee to us. That says a lot about how they do business. Because of that, and reinforced by Don and Larry, I signed onto their yearly maintenance agreement. I feel like I finally have a trustworthy, competent, and fairly priced company to work with. Other companies I’ve dealt with in the past have hit one or two of those, maybe good to work with but really expensive. I feel like Haller hits all the marks.
Gale Zorian
Gabe is the best plumber❣️
Saneta DaSilva
Mark was great, had a new toilet and a hot water tank installed,guy know what he was doing Definitely he is a keeper Thanks Mark
Mike Harris
Shane and Matt are two pros who are really good at their job!!! We are very happy with their work…. thank you

Electrical Specials & Discounts

Take advantage of our current offers & coupons!

All Offers

  • $500 OFF

    Electrical Panel Replacement

    Expires:

    06/30/2026

    $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:

    06/30/2026

    $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:

    06/30/2026

    $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 8556 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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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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