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  • Average homeowner rating star icon4.8
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  • Verified reviews icon10
    Verified generator installs reviews

Find Generator install pros in Brookhaven

Avatar for Deshko Services LLC
Deshko Services LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Brookhaven, 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
Avatar for WM Henderson Plumbing & Heating
WM Henderson Plumbing & Heating
4.1(
42
)
Fixed Generator - InstallFixed Generator - Repair

Serving Brookhaven, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Lee Barnes was very knowledgeable explained all aspects of new hvac system install. And answered all our questions. Provided good options and recommendations based on our requirements. promptly scheduled install on our time line. The installation crew was on time and very professional. They made sure the property was kept clean during and after install."
Henderson tech looking at electrical box
5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Horizon Services, LLC (DE)
Horizon Services, LLC (DE)
3.8(
1,298
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Brookhaven, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Experience The Horizon Difference.\n\nOn-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!\n\nHorizon Services is the region's largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.\n

Recommended by89%of homeowners
Avatar for Simmz Electrical
Simmz Electrical
5.0(
1
)
Portable Generator - Repair

Serving Brookhaven, PA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Simmz Electrical was founded by Joe Zita on a simple standard: electrical work should be done right the first time, with clear communication and uncompromising attention to detail.\nAs owner, Joe personally oversees projects to ensure every installation meets code, reflects professional craftsmanship, and leaves your home as clean as it was found. From panel upgrades to full lighting installations, the focus is always long-term reliability, not shortcuts

Jason John
New to Angi
Portable Generator - Repair

Serving Brookhaven, PA and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

Jason John Electrical Services provides premium maintenance and troubleshooting for homes and small businesses. We specialize in diagnosing electrical problems, repairs, outlets/switches, lighting, ceiling fans, and breaker/tripping issues. Customers choose us for fast, reliable scheduling, safety-first workmanship, clean professional finishes, and clear communication from estimate to completion. Service area: Philadelphia and surrounding areas (up to 40 miles). Available weekends and weekdays 9:00 AM–2:00 PM by appointment.

Distribution Panel
Disconnect Switch
3 Phase Distr Panel
Conduit Installation
Electrical Projects

+1

UltraMagnetic Electricians
New to Angi
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Brookhaven, PA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

I have been working in the Electrical field for 16 years. After experiencing many different tasks and challenges, I finally decided to officially extend my services to my community and other surrounding areas. From service entry installation to minor repairs and improvements. No job is ever too big, nor too small.

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Generator Install questions, answered by experts

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

The Brookhaven, PA homeowners’ guide to generator installs

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