Top-rated generator install pros.

Get matched with top generator install pros in Jasper, AL

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Jasper, AL?

Select your specific project to find the pro for you.

Find Generator install pros in Jasper

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

Serving Jasper, 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!"
6 neighbors recently requested a quote
Avatar for Reynolds Home Solutions LLC
Reynolds Home Solutions LLC
New to Angi

Serving Jasper, AL and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Reynolds Electrical Services is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n

1 neighbors recently requested a quote
Avatar for Mach 1 Mechanical Services
Mach 1 Mechanical Services
5.0(
4
)

Serving Jasper, AL and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"The seal on the bottom of my garage door had dry rotted. I hired someone to replace it. They bought the part but could not install it. We were expecting a lot of rain, so I needed it done as soon as possible. I called Mach 1 Mechanical. Jason came out the same day. He was very professional and courteous. Jason determined that the part I had was not the correct part. Since it would take time to get the correct part, Jason decided to modify the part I had. He successfully modified and installed the part. There has been zero water entering under the door. Jason went the extra mile and I could not be happier with the job he did. He did it at an excellent price. I would hire him again in a heartbeat."
Truck @ ATV
Generator
Response time2 days
Recommended by100%of homeowners
Avatar for One Source Heating, Cooling and Electrical LLC
One Source Heating, Cooling and Electrical LLC
5.0(
7
)

Serving Jasper, AL and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"We are remodeling a house and they replaced our old unit. They were fast and very professional. They did quality work at a great price. I definitely recommend this company."
100kw Generator
Residential 1
Residential 2
Residential 3
Residential 4

+14

Response time3 hrs
Response rate94%
Recommended by83%of homeowners
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Jasper, 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

Showing 1-10 of 34
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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The Jasper, AL homeowners’ guide to generator installs

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