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    Average homeowner rating
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Verified Reviews for Generator Install pros in Langhorne, PA

*The Angi rating for Generator Install companies in Langhorne, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Langhorne, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on February 03, 2025

Top-Rated Generator install pros in Langhorne - Updated Nov 2026

Avatar for Princeton Electrical Makeover LLC
Princeton Electrical Makeover LLC
4.5(
210
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Langhorne, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Brian was awesome and fast and courteous. Princeton Electrical was easy to communicate and negotiate with, and offers a fair price for their labor. Had a Level 2 EV charger installed from my townhouse basement to my garage in a few hours without problems."
Tesla in charging status
Wiring Tesla Wall Connector
Full installation
Connection in the panel
Additional Photos

+26

Response time2 days
21 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for GJC Electric, LLC
GJC Electric, LLC
5.0(
16
)
Fixed Generator - InstallPortable Generator - Install

Serving Langhorne, PA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"They went out of their way to find the bulbs I needed, purchased and installed them."
Automatic transfer switch / meter
portable 10 kw
22 kw generator
22 kw generator
400 amp automatic transfer switch

+43

Response time10 mins
Recommended by100%of homeowners
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Avatar for Murray Brothers Electric, Inc.
Murray Brothers Electric, Inc.
4.6(
42
)
Fixed Generator - Install

Serving Langhorne, PA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Nick Murray, one of the Murray brothers, replaced a circuit breakers panel in the basement and installed a full house generator with switch panel on my house. Nick did a great job! Very professional and courteous. I would definitely recommend this company for electric works."
Response time1 day
4 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Star Bright Electric
Star Bright Electric
5.0(
39
)
Portable Generator - Install

Serving Langhorne, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Exceptional customer service - not only did they install the fixtures, but also troubleshoot and fixed wiring issues left by previous contractor. Will hire again for any future projects."
Our Trucks
Response time11 hrs
Response rate99%
1 neighbors recently requested a quote
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Avatar for Honey Electric and Mechanical, LLC
Honey Electric and Mechanical, LLC
4.0(
276
)
Fixed Generator - Repair

Serving Langhorne, PA and surrounding areas

Approved

In business since 1987

Free estimates

Credit card accepted

"They were easy to deal with. I?d definitely recommend. Not only they served my HOT TUB they also served my Whole House Generator. I like a small family business."
Hot tub services
Response time4 hrs
66 neighbors recently requested a quote
Recommended by71%of homeowners
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Rowlands Power Solutions
5.0(
4
)
Fixed Generator - InstallFixed Generator - Repair

Serving Langhorne, PA and surrounding areas

Approved

Offers commercial services

Customers say: Quick response

"Mr. Rowland installed a light post as well as a century floodlight on the side of my house. He also installed LED energy efficient lights in my basement. The installs were all clean and well done. Not to mention the price was very reasonable. Without a doubt, I would absolutely hire or recommend him for future work."
Recommended by25%of homeowners
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Avatar for A. F. L. Electric, LLC
A. F. L. Electric, LLC
4.5(
8
)
Fixed Generator - Install

Serving Langhorne, PA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"The quality of work was poor, some of switches do not work, some of the electric outlet did not work. I contacted the service provider but never heard back from them. The service provider did the bare minimum to complete the job. The quality of the hardware installed is as bad as it can be. It would have been nice if he gave us a few options, showed us what he was going to install but he did not. We got what he chose for us.
"
9 neighbors recently requested a quote
Recommended by71%of homeowners
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Avatar for AMF Electric, LLC
AMF Electric, LLC
5.0(
3
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Langhorne, PA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"The gentlemen who performed the service were courteous and professional. They left the area as clean as when they started. I highly recommend AMF Electric!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

10 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Deshko Services LLC
Deshko Services LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Langhorne, PA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We had personal EV charging station installed by this business' technician. He is very professional, explained all options how to get wires from main electric panel to the other side of the house where it would be convenient for us to charge the car. Provided all required materials and get job done fast and safely, made sure everything works properly."
2 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Langhorne, PA homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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