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TRUSTED BY MENDHAM, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon42
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Mendham, NJ

*The Angi rating for Generator Install companies in Mendham, NJ 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 Mendham, NJ 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 July 31, 2025

Find Generator install pros in Mendham

Avatar for Green Sun Energy Services, LLC
Green Sun Energy Services, LLC
5.0(
73
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Since I am working at home it was needed. Glen and Chris were awesome to deal with as they walked us through the process step by step and every time they said someone would be here that person was. It was seamless and very easy to work with them and I would Highly recommend them if you are looking for a generator install."
Ruisi
Oceanport
Additional Photos
Additional Photos
Additional Photos

+55

Response time4 days
5 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Kope Electric LLC
Kope Electric LLC
4.9(
97
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Kope Electric just finished installing a Generac generator at my house and their work was top notch. They actually got me in their schedule 1 week early and finished as timely as they said they would. I highly recommend them to anyone interested in a generator."
Bathroom Lighting & Electrical
Bathroom Lighting & Electrical
Bathroom Lighting & Electrical
Bathroom Lighting & Electrical
Additional Photos

+38

Response time2 days
6 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Avatar for Princeton Electrical Makeover LLC
Princeton Electrical Makeover LLC
4.5(
204
)

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Amazing service! They gave the fairest price and came to install it immediately. They were professional and I highly recommend them. I would use them again."
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 by89%of homeowners
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Avatar for RAP Electric Co., Inc.
RAP Electric Co., Inc.
4.6(
137
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Roy is really a prof. He installed two overhead fans and a hanging lamp. The fans had a complicated control system but he was able to get them to work flawlessly. Bonus: he is really a nice person and he cleaned up too! I would recommend his work to anyone."
Response time2 hrs
Response rate93%
Recommended by90%of homeowners
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Avatar for Plesh Electric, LLC
Plesh Electric, LLC
4.4(
111
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Plesh electric did a fantastic job installing our whole house generator. We don’t have natural gas so we had to also had to have a propane tank installed. They did a great job organizing with the propane company and managing the township permits. I highly recommend them."
Outdoor Closed Panel Upgraded
Residential Generator
Outdoor Open Panel Upgraded
Residential Generator
Upgraded Panel Closed

+19

Response time2 days
6 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Guardian Electric, LLC
Guardian Electric, LLC
4.9(
39
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Chris called me back the day I called him. Once my lighting fixture arrived he showed up the next day and installed it. Rate was reasonable compared to other companies. I would use this company again and I would highly recommend them."
Electric Rough-In
New Ceiling Fan Installation
New Service Hook-Up
New Kitchen Renovation
New Switchboard Installation

+44

Response time9 hrs
2 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Anzalone Electric & Lighting, LLC
Anzalone Electric & Lighting, LLC
4.9(
110
)

Serving Mendham, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Scott did an excellent job of installing and outdoor motion light and also a bathroom ceiling light. Everything was done neatly and efficiently."
Finished panel
Electric Tie in
installing breakers
The old mast
Response time8 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Hank's Electrical Contracting LLC
Hank's Electrical Contracting LLC
5.0(
40
)

Serving Mendham, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Henry did an amazing job installing my video door bell . He was very patient helping me set up the WiFi. I would definitely recommend him!"
Response time4 hrs
Response rate86%
3 neighbors recently requested a quote
Request Quote
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Generator Install questions, answered by experts

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

The Mendham, NJ 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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