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Avatar for B & Z Electrical Service
B & Z Electrical Service
5.0(
8
)

Serving Langley, SC and surrounding areas

Approved

In business since 1994

Free estimates

Small jobs welcome

"B and Z electrical responded to my house to install a receptacle. The electrician was professional, showed up on time, completed the job promptly, and left a clean work area. I highly recommend B and Z electrical and will use them again for any of my electrical needs."
I can work on anythng!
Response time10 hrs
Response rate100%
Avatar for PALMETTO ELECTRIC GROUP LLC
PALMETTO ELECTRIC GROUP LLC
5.0(
7
)

Serving Langley, SC and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Jackson and Palmetto Electric were quick to address my needs and went above and beyond the scope of the project to help me complete the electrical work and get our TV up on the wall! Thank you!"
7 neighbors recently requested a quote
Avatar for CSRA Professional Electrical, LLC
CSRA Professional Electrical, LLC
5.0(
15
)

Serving Langley, SC and surrounding areas

In business since 2019

Warranties offered

Small jobs welcome

"These fellows worked well together and did great work for us on a couple of occasions, and we had them come back and install a complete new service into the house which gives me peace of mind, since the original service had some age on it. I highly recommend them!"
Breakfast chandelier
Simple fix
A tight spot
The whole problem
Response time5 days
Recommended by100%of homeowners
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Langley, SC and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

Avatar for Canter Power Systems, LLC
Canter Power Systems, LLC
1.3(
18
)

Serving Langley, SC and surrounding areas

In business since 1948

Free estimates

Warranties offered

"It's a family owned business that is fanatically focused on outrageous customer service at every step of the purchase and installation process."
1
Response time2 days
Response rate85%
Recommended by50%of homeowners
Showing 1-10 of 19
Generator Install questions, answered by experts

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.

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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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. 

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.

The Langley, SC homeowners’ guide to generator installs

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