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Avatar for Mister Sparky of Florence
Mister Sparky of Florence
5.0(
16
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Effingham, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"Daniel, their electrician has helped us before. He arrived promptly and after discussing with us our issues went directly to work addressing our problem. He successfully completed his work to our satisfaction, discussed the repairs , and was on his way to his next appointment in a very timely manner. We are extremely satisfied with his work in particular and Mr Sparky in general in addressing our needs. Reliability and competence seem to be their hallmark."
Install - Under Cabinet Lighting
Install - Outdoor Outlets
Install - Outlet Replacements
Install - Outlet
Install - Door Bell

+5

16 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for Swift Services Heating & Cooling, LLC
Swift Services Heating & Cooling, LLC
4.0(
64
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+1 more

Serving Effingham, SC and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"Swift is an efficient and professional service company. They installed my new air conditioner quickly and with no problems. They were on time, and the installers were friendly and courteous. I would recommend them to everyone. I would not use anyone else for my AC service. They are the best!"
Response time10 hrs
65 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for B1 Electric, LLC
B1 Electric, LLC
4.1(
30
)
Fixed Generator - Install

Serving Effingham, SC and surrounding areas

In business since 2016

Free estimates

Small jobs welcome

"Perfectionists, meticulous, cordial, and punctual!!!! Everything installed was done well. One of the installers even corrected electrical mistakes caused by our builder. Intend to hire them again for additional projects and will recommend to other residents in this community."
200A Service Upgrade
200A underground Service with disconnect
Kitchen lighting Project
Outdoor lighting and outdoor 100A electric service
Exterior Ceiling Fan with Leaf Design

+4

Response time4 hrs
Recommended by96%of homeowners
Singleton Electric
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Effingham, SC and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"They were good company. They were really professional. They had a competitive price. They showed up when they said they're gonna be. They were very reliable. The owner was hardworking man and really conscientious. He goes above and beyond. He really cares about his work and his customers."
Recommended by100%of homeowners
Showing 1-10 of 17
Generator Install questions, answered by experts

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Effingham, SC homeowners’ guide to generator installs

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