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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon34
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Find Generator install pros in Dresher

Avatar for Murray Brothers Electric, Inc.
Murray Brothers Electric, Inc.
4.6(
42
)
Fixed Generator - Install

Serving Dresher, PA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Nick Murray, one of the Murray brothers, replaced a circuit breakers panel in the basement and installed a full house generator with switch panel on my house. Nick did a great job! Very professional and courteous. I would definitely recommend this company for electric works."
Response time1 day
4 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 Dresher, 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

5 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Michelbacher Contracting, LLC
Michelbacher Contracting, LLC
4.8(
9
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Dresher, PA and surrounding areas

Approved

In business since 1992

Free estimates

Customers say: Quality work

"Dave and his guys did a great job, as always. He came out next day. Fixed an outdoor outlet by my pool and installed a Ring flood light and camera for my side yard. Done within an hour at a very reasonable price. Can't recommend them enough."
Master Suite  rough in
Master Suite
roughed in bath
Finished bath
Relaxing Tub area

+4

Response time1 day
6 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for AMF Electric, LLC
AMF Electric, LLC
5.0(
3
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Dresher, PA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Highly recommend AMF for all your electrical needs. The whole crew were very professional. Took the time to explain everything from existing issues they found and the steps they would take to repair. They had to move some furniture and other things and paid close attention to detail while cleaning up after themselves and putting everything back exactly how it was. Top notch craftsmanship"
Additional Photos
Additional Photos
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Additional Photos

+7

10 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

The Dresher, PA homeowners’ guide to generator installs

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