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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
22 neighbors recently requested a quote
Recommended by86%of homeowners
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
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
Avatar for Honey Electric and Mechanical, LLC
Honey Electric and Mechanical, LLC
4.0(
277
)
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
Avatar for Rowlands Power Solutions
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
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

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.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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.