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Hoehn's Electrical Service
3.7(
3
)
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Knox, PA and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"Very pleased with the finished work. Donny did a great job with everything, he really knows what he is doing. Put a new service entrance in, new breaker box in the basement, fixed up an old dryer plug and some new wiring. I have a few other smaller projects and he will be my go to guy. Thanks again Donny."
Response time1 day
Recommended by100%of homeowners
Avatar for Gravatt Glass & Electric
Gravatt Glass & Electric
5.0(
50
)
Fixed Generator - Install

Serving Knox, PA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Gary came on Saturday to repair our generator. He was excellent on his knowledge of Generac generators. We really are impressed by his excellent work quality. Very thankful to him for coming on his off hours."
20 kw Generator - Pitts.
 14 kw Generator - Pitts.
 Customer with 8kW - Butler, PA
 20 kw - Conway, PA
 Our Work Van

+8

Recommended by100%of homeowners
Avatar for H&L Precision Services
H&L Precision Services
4.5(
21
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Knox, PA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Prompt, professional and very knowledgeable. Fixed a problem we had with our Bose home theater even though it was originally installed by Bose technicians (found that it was not installed properly) Also installed a Visio smart TV. Everything works perfectly. Very happy with the service."
 3 phase hydraulic pump install
 So you don't like Windows 8?
 Old #8 wire at the controls
 TV Mount with level
 The old heavy fixture

+31

Recommended by100%of homeowners
John Secrist Electric
New to Angi
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Knox, PA and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We offer over 40 years of experience in the electrical industry. We take on a wide range of\nelectrical projects to include full installation for additions and remodels as well as wiring and\npanel upgrades and a variety of other jobs. We're committed to providing a personalized service\nfor each individual project we take on & look forward to building strong, long-term relationships\nwith our clients and guarantee your satisfaction.

J Biernesser Electric
New to Angi
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Knox, PA and surrounding areas

In business since 1998

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

NG Electrical
4.0(
1
)
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Knox, PA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

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.

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

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.

The Knox, PA homeowners’ guide to generator installs

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