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Avatar for Charleston Electric
Charleston Electric
4.7(
359
)

Serving Wando, SC and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Not good, tech said the generator was out of code due to location, did not perform services. He told me office would be in touch they scheduled a quote bid for 9/23/2020 many weeks after tech was here, so after bid it will be one to two weeks before relocation of generator and service. Process is taking way to long I was willing to advance pay if they brought materials on 9/23 and complete proper install. It’s Hurricane season. They also billed me for the maintenance which he could not do because he said it was out of. Code."
20kw Cummins Onan Generator
Electrical Panel Upgrade
Bathroom remodel
20 KW Cummins Onan Generator
12 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for 5 Star Electrical Solutions
5 Star Electrical Solutions
5.0(
21
)

Serving Wando, SC and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"SUBJECT: Letter of Appreciation / Commendation Dear Mr. Brown, This letter is provided to acknowledge the exceptional professional electrical services that you and your assistant provided on Friday, October 16, 2020. Your services were such that I hope you will be able to use this letter as you advertise the availability of your support to clients in the Greater Charleston area. There were several factors that impressed me as you set about proving your bid to provide installation of a new 50 Amp electrical circuit in our home. They included: . Your timely response to my inquiry regarding your availability . Your personal visit to the job site to evaluate the extent of the job’s requirements . Your timely bidding as concerned the cost of the project Once your bid was accepted, you ensured that the work was accomplished in complete compliance with the terms and conditions of our contract. In two words, your work at my home was “totally professional” and I would heartily recommend your services to friends and neighbors. With appreciation for your noteworthy service, I am, Very respectfully, Nicholas N. Chronis PS: I apologize for the late delivery of this letter. It was caused by an unforeseen health situation. Please feel free to use this letter as an endorsement."
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+10

Response time1 day
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for MR. ELECTRIC OF CHARLESTON, SC
MR. ELECTRIC OF CHARLESTON, SC
4.5(
12
)

Serving Wando, SC and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Ryan and Adam did a fabulous job installing a new breaker panel, with generator interlock switch, a power cut-off switch, and house surge protection. We plugged my new portable generator, plugged it in, and simulated a power loss and was able to run everything I needed. Total cost was about $5 to $7K less than a whole house generator, plus we got a new breaker panel bringing everything up to code. On time, on budget. Great job!"
Response time1 day
6 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Cransten
Cransten
4.4(
161
)

Serving Wando, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Hired a professional to install 2 hand rails for my parents. One was installed on the front porch brick steps and one on the back porch brick steps. They arrived on time, installed both handrails quickly and safely. Handrails are sturdy, and now my parents lives are that much safer. Would recommend."
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+18

Response time1 day
Response rate98%
5 neighbors recently requested a quote
Avatar for HLS Technology Solutions, LLC
HLS Technology Solutions, LLC
4.9(
116
)

Serving Wando, SC and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"They did a great job installing my TV . I had a couple of problems from my previous install and they repaired everything for me prior to mounting the new TV. Prices were fair and they were great! Would definitely hire again ."
1
Kitchen LED
1
1
1

+102

Response time4 hrs
Recommended by99%of homeowners
Wadford Water Works, LLC
4.9(
8
)

Serving Wando, SC and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Mr. Wadford was and is very responsive to any query or request. He was always on time as was the installer. He was very patient and thorough in explaining the system operation and Bluetooth software. He insured that I understood everything and answered any and all questions. I have only had the system for a short time but it is performing perfectly. This project is to replace n old system. This new system cost $1500 less than the 20 year old system it replaced. The Wadford Water Works provides a quality system as well as quick, efficient and professional installation. I am thoroughly pleased with my decision with my choice to do business with Mr. Wadford."
Response time2 hrs
1 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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Wando, SC homeowners’ guide to generator installs

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