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TRUSTED BY FARMINGVILLE, NY HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon15
    Verified generator installs reviews

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

CPT Electric
5.0(
62
)
Fixed Generator - InstallPortable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Customers say: Quality work

"New to the area, I needed a hookup for an emergency generator and EV charger. Cole came to my home, took the time to discuss different options and answer questions, and provided a detailed, written estimate, all the same day as my initial inquiry. The project was completed within a few days. His price was very competitive and his work meticulous. A true professional."
Response time9 hrs
Response rate93%
Recommended by79%of homeowners
Avatar for Morris Electric
Morris Electric
4.9(
30
)
Portable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"He made room in my electrical panel by installing double circuit-breakers to accommodate my home. Based on the work and how they presented themselves, I would recommend them. Very clean and professional, and I would hire them again in a heartbeat. Their price was reasonable, the work was great, and it was an overall pleasant experience."
Lake Ronkonkoma House
Lake Ronkonkoma House
200amp upgrade
200amp upgrade
200amp upgrade

+3

Response time2 hrs
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for DZ Electrical Contracting
DZ Electrical Contracting
4.8(
438
)
Generator - Install - For BusinessPortable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I inquired to Darren about a gen 3 tesla charger installed in my home that was not properly charging, and was overheating. He came, gave me a very informative rundown of what could cause this, different solutions etc. checked my panel, checked my charger, immediately knew and fixed the issue within 10 minutes of being here all while being educational,, pleasant, and professional. This man knows his stuff inside and out 100% and I would reccomend anyone who needs electrical work of any type to reach out to hire Darren and his team. He has earned a customer for life with me."
Response time5 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
DEPENDABLE RENOVATIONS LLC
5.0(
23
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"They showed up on time and went above and beyond the official work estimate making sure the new installed highhats were adjusted to for the brightness we wanted taking the extra time was appreciated"
3 neighbors recently requested a quote
Recommended by91%of homeowners
Wilburforce Electric LLC
5.0(
8
)
Portable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Jack and his crew were extremely knowledgeable, helpful, and a pleasure to work with. From running new wiring into an existing ceiling for ceiling lights, upgrading my elective panel, installing ceiling fixtures, and installing new outlets, Jack and his crew were able to perform the tasks efficiently and Iâ m very happy with the outcome. Wilburforce was also more affordable than other electricians in the area. I would highly recommend this business and I will be using them again."
Response time3 hrs
Recommended by100%of homeowners
Avatar for A/C Performance Power, Inc.
A/C Performance Power, Inc.
5.0(
4
)
Generator - Repair - For Business

Serving Farmingville, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jim, the Owner provided timely, Expert generator repair, to get a 15 year old 30KW generator that hadnâ  t run in years operational in 30 minutes. We were fortunate to find him, and appreciate his skill, integrity...truly a consummate Professional ! 5+ Star recommendation"
Generator repair
Generator repair
Generator repair
Generator repair
Generator repair

+27

Response time9 hrs
Recommended by100%of homeowners
Avatar for Pinnacle Power LLC
Pinnacle Power LLC
5.0(
9
)
Fixed Generator - InstallPortable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Full-service electrical company serving Long Island with reliability, professionalism, and precision for residential and commercial needs.\nSmartHomes, Generators, Renovations, New Construction, EV Chargers & More

Project Photos
Project Photos
Project Photos
Project Photos
Project Photos

+4

Response time5 hrs
Response rate98%
16 neighbors recently requested a quote
Avatar for R.C.K. Electric, Inc.
R.C.K. Electric, Inc.
4.3(
19
)
Portable Generator - Install

Serving Farmingville, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Ryan is awesome! We needed to upgrade our garage electrical + smoke detectors & pool alarms @ our rental property in L.I. (Permit dept requirements) Ryan arrived right when he said he would & he stayed extra to help ADT solve a new thermostat issue. He texted us pics of each repair/replacement he did before he left the property. He gives good & honest advice, & is very easy to work with! Other electricians we contacted for this last minute project didnâ t even bother to get back to us! I highly recommend RCK Electric."
Response time5 hrs
Recommended by93%of homeowners
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Generator Install FAQs, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

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.

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.

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.

The Farmingville, NY homeowners’ guide to generator installs

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