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TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon60
    Verified generator installs reviews

Find Generator install pros in Mountainside

Avatar for Green Sun Energy Services, LLC
Green Sun Energy Services, LLC
5.0(
73
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Mountainside, 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
Avatar for Plesh Electric, LLC
Plesh Electric, LLC
4.4(
111
)
Fixed Generator - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"We have hired Plesh Electric to install a fixed generator. Plesh Electric called us to set up an appt the same day we were on Home Advisor. They came the next day to do a property survey and we received a proposal the very next day. They have not started the work yet BUT I can say that I am very impressed with Lisa their office manager. Customer Service is rare these days and so far in this process she has quickly applied for permits and submitted application to PSE&G. She has kept me up to date and I very much appreciate it. I am looking forward to their guys doing a quality job. Stay tuned!"
Outdoor Closed Panel Upgraded
Residential Generator
Outdoor Open Panel Upgraded
Residential Generator
Upgraded Panel Closed

+19

Response time2 days
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
202
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Yes. On initial install technicians discovered new programmable thermostat was defective. Installed a temporary replacement and next day installed the permanent thermostat and walked us through setting up app and Siri and Alexa ."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+93

8 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for JDP Electric, LLC
JDP Electric, LLC
5.0(
14
)
Portable Generator - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Jeff came out to to some repairs and install new outlets. While here he also installed a ceiling fan for me. Excellent work, reasonable price, cannot praise him or his work enough. Highly recommend!"
Chandelier
Recessed Lighting
Floor Lighting
Panel Upgrade
EV Car Charger

+11

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Spartan Home Pros
Spartan Home Pros
5.0(
21
)
Portable Generator - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2023

Emergency services offered

Credit card accepted

Spartan Home Pros is a licensed electrical contracting company serving Central New Jersey. We specialize in residential electrical services including panel upgrades, new circuit installation, EV charger installation, electrical repairs, and diagnostics. Our team of experienced electricians is committed to delivering reliable, professional service with clear communication and attention to detail. We proudly serve homeowners across Middlesex, Somerset, Union, and Monmouth counties, and we stand behind our work with a dedication to customer satisfaction.

Service upgrades
Service upgrades
EV Charger Installation
Landscape lighting
Landscape lighting

+14

118 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Transform Electric, LLC
Transform Electric, LLC
5.0(
14
)
Fixed Generator - InstallPortable Generator - Install

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Ken and his team from Transform Electric were terrific! Ken immediately contacted me and was able to come and give me an estimate right away. We started the project a few days later. I had four rooms that needed new recessed lighting installed. The team came on time and started working. They were very professional and reliable. They moved all my furniture and covered what was necessary. When it was all done, everything looked great and I was very pleased with the outcome. They also cleaned up after they completed the job. Overall they did a fantastic job and I would definitely recommend them to others!"
Recommended by92%of homeowners
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Showing 1-10 of 132
Generator Install questions, answered by experts

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 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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The Mountainside, NJ homeowners’ guide to generator installs

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