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Avatar for Trinity Generators & Electrical, Inc.
Trinity Generators & Electrical, Inc.
4.3(
28
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Pennsburg, PA and surrounding areas

Approved

In business since 2009

Emergency services offered

Customers say: True professional

"I had initially gotten a quote for the purchase and installation of my 22KW Generac generator from an electrician. He suggested contacting a Generac dealer to purchase and install my generator. Since I would have to contact a dealer if I had a problem with my generator after installation anyway, it seemed like a good idea. I got a quote from Trinity Generators which was substantially less than my previous quote. Getting the generator from Trinity was an easy choice. They did an outstanding job of installing the generator. Trinity handled all the paperwork and permits all the way to the final inspection of the installation. Trinity sent 4 technicians to install the generator. They started at 9am and finished right after lunch. The installation was fast and neat. They treated the installation as if my home was theirs. They removed all packing material and trash and left my home just as it was before they were there. I couldnâ t be more satisfied and happy with my decision to have them add a generator to my home. 5 Stars!!!!"
Response time2 days
3 neighbors recently requested a quote
Recommended by66%of homeowners
John Gambino Electric
4.8(
253
)
Portable Generator - Install

Serving Pennsburg, PA and surrounding areas

Approved

In business since 1985

Free estimates

Credit card accepted

"So much YES!!! John called me back within one business day of my initial inquiry to give us a quote and explain the generator transfer switch install process. We set an appointment for which Bill showed up exactly on time. He was OUTSTANDING. He explained everything he was planning to do, answered our questions along the way, gave us status updates and even though our house wasnâ t the most cooperative, went above & beyond to put the transfer switch in a spot that was more challenging for him but more convenient for us. Top notch customer service. He walked us through how to work everything and simulated a power outage to ensure it was perfect. And it was. John Gambino Electric has new lifelong customers. Thanks John & Bill!!!"
Response time9 hrs
40 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for DM Electrical Services, LLC
DM Electrical Services, LLC
5.0(
36
)
Generator - Install - For Business

Serving Pennsburg, PA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very professional and friendly, did installation of a ceiling fan and outlets in the basement. Definitely recommend. Will be using him again if we need any electrical work done."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Pro Electrician S Corp
Pro Electrician S Corp
4.3(
224
)
Fixed Generator - Install

Serving Pennsburg, PA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"We had some outlets installed recently by the technician Carlos. Everything has been working great! Carlos is very personable. He took the time to explain the process and answered all of our questions. We will definitely be using the company again for future work!"
320A Electrical Service
320A Electrical Service
320A Electrical Service
320A Electrical Service
320A Electrical Service

+107

4 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Mister Sparky Electric
Mister Sparky Electric
4.4(
324
)
Fixed Generator - InstallPortable Generator - Install

Serving Pennsburg, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"It was my first time hiring this company to work on my air conditioning unit, and I have to say that they did a fantastic job. They re-install a new electrical system and air conditioning unit and the job was well done. They arrived on time, they were professional, knowledgeable about their area of expertise, and they clean up and remove all old appliances. I definitely recommend this company to anyone and everyone. They all did a great job."
 Office
  Office
  Office
113 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Revival Electric
Revival Electric
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Pennsburg, PA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

Revival Electric is a locally owned and operated electrical company providing reliable, high-quality residential and light commercial electrical services. We specialize in electrical repairs, panel upgrades, lighting installations, generators, EV chargers, and whole-home electrical safety solutions. Our focus is simple: safe work, clear communication, and dependable service. We take pride in doing the job right the first time, educating homeowners along the way, and offering long-term solutionsnot quick fixes. Whether you need a small repair or a full electrical upgrade, our licensed electricians deliver professional results you can trust. We also offer preventative electrical safety inspections and service plans to protect your home

 Revival Electric
18 neighbors recently requested a quote
Avatar for Mr. Electric of Reading
Mr. Electric of Reading
5.0(
22
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Pennsburg, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

"Troy did an amazing job on several projects for us. He installed a 220 sub panel box and wired in a new hot tub. Additionally, he wired up our basement during a remodel, same as a new construction build. We hired him back on for the project due to the professionalism and fairness he brought with him on his first job with us. I’m a meticulous guy and picky about how my electrical work looks. Troy came in above and beyond of what I was expecting with his order of neatness and cleanliness when laying his lines. Everything had to be perfect for him and I feel he exceeded what my high expectations were already. I would certainly only consider him for whatever our next electrical project is."
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade

+16

63 neighbors recently requested a quote
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Generator Install questions, answered by experts

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

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.

The Pennsburg, PA homeowners’ guide to generator installs

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