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*The Angi rating for Generator Install companies in Florence, AL 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 Florence, AL 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 March 09, 2026

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Avatar for APS Lighting and Electrical LLC
APS Lighting and Electrical LLC
5.0(
5
)

Serving Florence, AL and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"This is our go to electrical contractor for all of our commerical projects. They communicate clearly, arrive on time, and complete everything efficiently and professionally with quality always in mind. Their attention to detail and reliability always help the projects to run smoothly. Can’t recommend them enough for whatever you need done!"
11 neighbors recently requested a quote
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Avatar for Titan Electrical Contractors, LLC
Titan Electrical Contractors, LLC
5.0(
10
)

Serving Florence, AL and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"Russ from Titan Electrical Contractors, LLC is the best electrician I have worked with over 40 years. He is conscientious and pays attention to detail. He works to satisfied the customer. Displays a great attitude. I highly recommend Russ."
Greenway Chevy
Grace Life Church
Grace Life Church
Greenway CDJR
SKF Bearings

+5

Response time4 hrs
Recommended by100%of homeowners
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Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Florence, AL and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

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Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

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.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Florence, AL homeowners’ guide to generator installs

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

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