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Avatar for John Gambino Electric
John Gambino Electric
5.0(
24
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

With over 35 years of experience, the master electrician team at John Gambino Electric are more than qualified to take care of all your electrical needs - and much more! From whole house rewiring projects to installing your new, shiny appliance, no job is too big (or too small) to handle. \n\nExpert precision and craftsmanship, paired with a courteous and respectful company policy, we stay flexible to get the job done without disturbing your daily life schedule and leave your home just as clean as we found it - sometimes cleaner! Our professionally licensed team communicates with you during the whole process to assure the project is done on time, on budget, and most importantly, done right! Call us today at (484) 994-1030

Electrical
Electrical
Electrical
Additional Photos
Additional Photos

+4

Response time1 day
23 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for BRAD BROWN ELECTRIC
BRAD BROWN ELECTRIC
4.8(
253
)
Portable Generator - Install

Serving Valley Forge, PA and surrounding areas

Approved

In business since 2006

Emergency services offered

Warranties offered

"From scheduling through installation had an excellent experience. This was a surprisingly pleasant morning with not only highly-competent and professional electrical services rendered, but done so by two gentlemen operating swiftly and politely with integrity. I would use them again in a heartbeat and absolutely recommend their services."
Recessed Lighting
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time7 hrs
Response rate100%
Recommended by98%of homeowners
Avatar for Synergy Power Systems, Inc.
Synergy Power Systems, Inc.
5.0(
10
)
Generator - Install - For Business

Serving Valley Forge, PA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"My mother used this company for her generator installation and recommended them to me because she loved them so much. I also ended up hiring them. All went well as expected, start to finish the crew as awesome. No regrets."
Reading Area
Chester County
Denver Pa
Generator Installed
Generac Generator Installed

+10

Response time1 day
Recommended by100%of homeowners
Avatar for GenShield LLC
GenShield LLC
5.0(
7
)
Fixed Generator - Repair

Serving Valley Forge, PA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in generator service and repair and provide unmatched customer service! You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

8 neighbors recently requested a quote
Avatar for Mr. Electric Of Lancaster County
Mr. Electric Of Lancaster County
4.8(
102
)
Fixed Generator - InstallGenerator - InstallGenerator - Repair - For Business

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Mr. Electric's technician arrived right on schedule to install an outdoor receptacle. He quickly got to work, installed the outlet, checked it and showed me the work. He left the area tidy and neat. I was so pleased with the work that I had him replace an outdoor light with a motion detector. Without a doubt, I would call Mr. Electric again. The price was fair and the work performed was excellent.
"
60 kW Briggs Generator Install
Ceiling Fan Install
Baseboard Heater Install
Full Electrical Wiring
Ceiling Fan Install

+28

11 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Mister Sparky Electric
Mister Sparky Electric
4.4(
324
)
Fixed Generator - InstallPortable Generator - Install

Serving Valley Forge, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"Jason installed doorbells at 2 doors. There were no functioning doorbells when I purchased this house 5 years ago. Various contractors warned me of the difficulty and expense of hardwired installations, making me put off the project. Wireless doorbells were unreliable. I was encouraged by James, who did my annual electrical maintenance, and scheduled the work for me. Jason did a fantastic job by creative thinking to avoid the difficulties I'd previously been warned about. He did the job quickly, neatly, and very successfully. I am thrilled to have working doorbells for the first time in 5 years!"
 Office
  Office
  Office
195 neighbors recently requested a quote
Recommended by90%of homeowners
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Showing 1-10 of 194
Generator Install questions, answered by experts

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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 Valley Forge, PA homeowners’ guide to generator installs

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