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Avatar for Wadford Water Works, LLC
Wadford Water Works, LLC
4.9(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Bonneau, SC and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"The installation personal was on time and very respectful and professional. Mr Darrel Watford was very kind and patient when explaining how the system works and the process that I need to know how to maintain the system. He was very kind to explain the app slso. Thank you all. God bless."
Response time2 hrs
Recommended by88%of homeowners
Avatar for W&W Electrical Services LLC
W&W Electrical Services LLC
4.9(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Bonneau, SC and surrounding areas

In business since 2021

Offers commercial services

"John and his crew are fantastic! Highly professional and thorough in all they do. John also found a couple of things that needed to be fixed and did so as he completed the job we hired him for. Fair prices and excellent work! I highly recommend him and will call again in the future when the need arises! Thanks John!"
Response time5 hrs
Recommended by100%of homeowners
Avatar for Generator Supercenter of Charleston
Generator Supercenter of Charleston
1.8(
3
)
Fixed Generator - Install

Serving Bonneau, SC and surrounding areas

In business since 2010

Free estimates

Warranties offered

Generator Supercenter is your area leader for all of your fixed generator needs. We know that customer service is key to a job well done, and ours is the best around. When you want top quality work at an always fair price, call the professionals at Generator Supercenter.

Generac 22kW
Mobile Link™
Generac 26kW
Generac 24kW
Generac 26kW

+1

Response time3 days
Recommended by33%of homeowners
Patrick J. Driscoll
2.7(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Bonneau, SC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

State Certified Master Electricians. Licensed with the SCLLR board of contractors as an EL2. Over 30 years experience in the Lowcountry. We are local, always have been.\nLighting, outlets added, panel work and breaker replacement, ceiling fans installed, outdoor / security lighting installs and surveys, appliance hookups and repairs and more. Any electrical issue handled fast and professionally at an affordable price.\nServing Summerville, Ladson, parts of North Charleston, Goose Creek and Moncks Corner and interesting projects outside our territory.\nResidential, Commercial and light Industrial. Bonded and insured. Checks & Credit cards accepted.

Recommended by100%of homeowners
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Generator Install questions, answered by experts

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

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.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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 Bonneau, SC homeowners’ guide to generator installs

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