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    Average homeowner rating
  • Verified reviews icon28
    Verified generator installs reviews

Find Generator install pros in Fair Haven

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

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Glen and his team were prompt and professional during both installation and annual maintenance. We lost power during the last hurricane and the generator worked perfectly. Pricing was very good and Glen was even able to get me an extended warranty (promo from Generac). I would recommend Green Sun."
Ruisi
Oceanport
Additional Photos
Additional Photos
Additional Photos

+55

Response time5 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Kingdom Electric
Kingdom Electric
4.7(
258
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"The initial estimate was very reasonable. Nick showed up, on time, and got right to work relocating several ceiling fans, installing new light fixtures, rewiring outlets, and adding a new outlet. In the end, we were billed less than the original estimate because Nick determined there was a less expensive way to perform some of these services and did not charge us the extra costs. We will definitely be calling Kingdom Electric for any future services we need."
Additional Photos
Response time11 hrs
11 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Watts Good Electric
Watts Good Electric
4.9(
48
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"These guys are great - had a couple of issues and they immediately helped without question; including come to change a manufacturer's defect long after the job was completed at no additional charge. I will be hiring them for any future electrical projects and recommend you do the same!"
Chandelier Installation
Vineyard Vines
Vineyard Vines
Vineyard Vines
Vineyard Vines

+19

Response time8 hrs
Response rate88%
Recommended by97%of homeowners
Avatar for Revolution Electric LLC
Revolution Electric LLC
4.8(
34
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"Revolution Electric updated and reworked all our electric for our 100 year old home remodel. We still had knob and tubes under our plaster walls. They modernized all of our electric from timed lighting indoors and out, full WiFi and boosters, generator installation and even buried our electric lines outside. They are professional, timely, courteous and so easy to work with. They stayed on budget, patiently helped me find cost effective solutions and fully trained me on how to manage all of the systems we installed. I fully would recommend them and rate them a 10 out of 10."
Kitchen
Cooktop Wall
Kitchen
Basement Bar
Exterior New Home

+25

Response time6 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Spartan Home Pros
Spartan Home Pros
5.0(
29
)
Portable Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2023

Emergency services offered

Credit card accepted

"Spartan was very professional and quick to respond at our home in Livingston, NJ. Their team did an amazing job and left the place clean as when they arrived. Would definitely use them again for any electrical services!"
Service upgrades
Service upgrades
EV Charger Installation
Landscape lighting
Landscape lighting

+14

12 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for ILL Electrical Services
ILL Electrical Services
5.0(
10
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+2 more

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Renaldo was professional, came on time and did a great job. He installed 2 ceiling fans , installed multiple gfi outlets and upgraded wiring to the panel box. Wonderful service! He thoroughly explained the job and I will definitely call him again."
100 amp meter replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time7 hrs
Response rate91%
7 neighbors recently requested a quote
Avatar for A Shore Thing Electric, LLC
A Shore Thing Electric, LLC
4.7(
51
)
Portable Generator - Install

Serving Fair Haven, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

"Communicated with Michael through email without any issues. Signed an agreement for work to be done and pricing. Michael scheduled a day and time and arrived exactly at the time he said. He installed two new lights on the front of my house in about an hour. Nice guy! Highly recommend!"
Pharmecutical Cage Panel
Panel Change
125 Amp Panel
Tesla S/X/3 Car Charger
Remote Controlled Ceiling Fan

+22

Response time1 day
1 neighbors recently requested a quote
Recommended by93%of homeowners
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Generator Install questions, answered by experts

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Fair Haven, NJ homeowners’ guide to generator installs

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