Get matched with top generator install pros in Griffin, GA

Q: How long can a whole house generator run?

• <div><p>As long as they have enough fuel, whole-house generators can run for weeks at a time (400 to 500 hours) without suffering too much wear and tear. However, this type of extensive use isn&rsquo;t ideal if you want to extend the life of your generator.</p><p>Two important points. First, some generators may need you to periodically check oil levels every day or so and refill as necessary for safe operation. Second, if your generator uses a fuel tank, keep it regularly full so it doesn&rsquo;t suddenly shut off. Many backup generators can run through a full tank in a day when they are powering large portions of a home.</p></div>

Q: What size generator does my house need?

• <div><p>You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. </p><p>A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you&rsquo;ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.</p></div>

Q: Do you need a permit to install a whole-house generator?

• <div><p>In many cases, you&rsquo;ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.</p></div>

Q: How long does it take to set up utilities?

• <div><p>Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.</p></div>

Q: What can I run on different generator sizes?

• <div><p>Here&rsquo;s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home&rsquo;s power is still on.</p></li></ul><p></p></div>

Enter your zip and get matched with up to 5 pros

Verified Reviews for Generator Install pros in Griffin, GA

*The Angi rating for Generator Install companies in Griffin, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Griffin, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on January 14, 2026

Reviewed in August 2025
They were great, they arrived as discussed reviewed what we needed to be examined and discussed our options, they generated the required documents we needed in a timely manner and fashion and within a few days.
Builtwell Engineering n Inspection Services, Inc.
Request a quote
Reviewed in July 2025
Efficient, timely, and professional from start to finish! The estimate, installation, and clean up exceeded our expectations. This business is aptly named and their expert installation warrants an A++ !!!
A+ Flooring
Request a quote
Reviewed in February 2025
I was pleased with installation. The install was timely and professionally done.
S & S Fencing
Request a quote
Reviewed in January 2025
They were kind and help moving things around my garage and home !!!!!!!!
All My Sons Moving & Storage
Request a quote
Reviewed in June 2024
I highly recommend this company. Work was done in a very timely manner and clean up was great. Robby was also very informative on my questions about installing a gas-powered emergency generator. I will do business with this company again!
Manross Gas Works LLC
Request a quote
Reviewed in February 2024
Professional, considerate and friendly service. Clear and open communication, transparent process and pricing, and quality work. I have nothing but great things to say about my experience - happy with the result, excellent work overall.
SKA Electrical LLC
Request a quote
Reviewed in November 2023
Perfect, cane in looked at everything and install
Henry County Electric
Request a quote
Reviewed in November 2023
I had a great experience with Katie and Anthony. Katie was very helpful with understanding exactly what I needed at the time. Anthony was very knowledgeable and eager to provide me with the best possible service to satisfy my needs. I would recommend A-Tow Plumbing to everyone.
A-Total Plumbing
Request a quote
Reviewed in February 2023
The team at GFS responded quickly to come check out my floor support/bouncy floor issues and give me a quote. They were able to fix the issues and now the floor is as good as new. 5 stars for this team!
Georgia Foundation Solutions
Request a quote
Reviewed in November 2021
we would like to use them in the future.
Freeman Services
Request a quote