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Trinity Electrical Specialist
5.0(
7
)
Portable Generator - Install

Serving Williamson, GA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Michael Matthew’s Sr came to work on my electrical problems. I had two rooms without power and outlet problems. Mr. Matthew’s was very professional and concerned about my problems. He stayed until all problems were resolved. Michael was very knowledgeable and took the time to answer all my questions. He was friendly and worked hard. I will not use anyone but Michael with my electrical problems. Great work."
Response time2 hrs
Response rate100%
Recommended by71%of homeowners
Avatar for All Pro Generator Service & Repair, LLC
All Pro Generator Service & Repair, LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Williamson, GA and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Ashley made the process painless and easy. He communicated with me throughout the entire repair and even took the time to answer my questions as well. I’ve since added them for my annual maintenance to keep my generator working every time we need it."
Cleaning a residential generator.
The owner (Ashley) in front of the Atlanta Falcons head coach's home after repairing his generator and transfer switch
This generator is now serviced and spotless and ready for the next storm.
Recommended by100%of homeowners
Qualified Electric Specialists, Inc.
4.2(
223
)
Generator - Install - For Business

Serving Williamson, GA and surrounding areas

In business since 2008

Free estimates

Warranties offered

"Started out rocky. We were supposed to have work done on a Saturday and a tech called me 4-5 times on Saturday pushing the appointment back until he eventually canceled and rescheduled for Monday. He wasted our time and day. Monday came and tech Chris Melton and his assistant showed up on time and began working. He installed recessed lighting for us and he did exactly what we asked for. They did a great job. I will use them again if needed, but I will only request Chris M."
Spivak house
Spivak house
Spivak house
Spivak house
Spivak house

+1

Recommended by93%of homeowners
Avatar for Masters Generator and Electrical Service
Masters Generator and Electrical Service
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Williamson, GA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

Masters Generators & Electrical Service, has been illuminating the metro Atlanta region and its surrounding counties since 2017. With a legacy rooted in over 40 years of electrical contracting experience, our expertise shines through in every project. Specializing in electrical wiring installation, we cater to both residential and commercial sectors, offering tailored solutions for new constructions as well as remodels. Our commitment to excellence is unwavering, and our goal is clear: to deliver top-tier electrical services that align with the needs of the cost-conscious customer. As we continue to grow and evolve, our dedication to integrity, safety, and quality remains at the forefront of our operations.

Response time2 hrs
Recommended by50%of homeowners
Avatar for Premier Generators
Premier Generators
3.0(
10
)
Fixed Generator - Install

Serving Williamson, GA and surrounding areas

In business since 1994

Free estimates

Emergency services offered

Power outages don't have to disrupt your life. Founded in 1994, Premier Generators has been the Southeast's trusted Generac dealer for over 30 years. As a top Generac partner trusted by thousands of homeowners, we deliver factory-certified home standby generator installations that provide reliable safety and security when you need it most.\n\nOur certified technicians bring unparalleled service quality, ensuring your generator automatically kicks in during outages to keep your home powered. Whether you need whole-home backup or essential systems coverage, we tailor power solutions to your specific needs using natural gas or propane systems.\n\nWhat started as a commitment to providing reliable backup power solutions has grown into the region's leading authority in home standby generator sales and installations. Choose Premier Generators for dedicated satisfaction, certified excellence, and peace of mind that your family stays comfortable and secure no matter what.

Response time9 hrs
Lance Electric, Inc.
4.6(
24
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Williamson, GA and surrounding areas

In business since 2003

Free estimates

Warranties offered

"Very happy with our decition to go with Lance Electric. I would highly recommend this company to anyone. They are the first guys I will call again when I need electrical work done again.They wired my entire basement, very professional all the way. Good job to all. Douglas M Walkler"
 20KW generator
 Custom home on High Falls Lake
 20KW generator
 Recessed lights
 Automatic transfer switch on right

+4

Recommended by100%of homeowners
Showing 1-10 of 20
Generator Install questions, answered by experts

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.

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.

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

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.

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.

The Williamson, GA homeowners’ guide to generator installs

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