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Avatar for Mr. Electric Of Birmingham
Mr. Electric Of Birmingham
4.7(
42
)
Fixed Generator - InstallFixed Generator - Repair

Serving Westover, AL and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I am very happy with the service we received from Mr. Electric. We replaced all of our old smoke detectors, installed a new ceiling fan, repaired a bad breaker and got an overdue tune-up on our breaker panel. They are easy to schedule an appointment with and they arrived on time! They are very professional. We will definitely use them again."
company Truck
Generators
Generators
panel upgrade
panel update

+18

Response time5 hrs
26 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for SB Electric, LLC
SB Electric, LLC
5.0(
38
)
Portable Generator - Install

Serving Westover, AL and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"Scott is a fantastic, highly experienced electrician. He has helped us install a microwave and repair breaker switches, and he is fully capable of tackling complex work in older homes. He is always punctual, professional, and stays right on schedule. Highly recommended!"
Kitchen remodel
Kitchen remodel
Kitchen remodel
Kitchen remodel
Kitchen remodel

+21

31 neighbors recently requested a quote
Recommended by18%of homeowners
Avatar for APS Lighting and Electrical LLC
APS Lighting and Electrical LLC
5.0(
5
)
Fixed Generator - Install

Serving Westover, AL and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I called APS about getting a standby generator for my home, and the whole experience was great from the start. They took the time to explain everything in a way that actually made sense and walked me through what to expect instead of just trying to sell me something. What really stood out to me was how thorough they were. They noticed my gas meter was undersized for what I already had and helped get that addressed with the utility company before it became a bigger issue. That?s the kind of thing most people probably wouldn?t even know to ask about. Their pricing was competitive, communication was easy, and everyone I dealt with was professional and knowledgeable. The 10-year warranty being included was a nice bonus too. Overall, I felt like they genuinely cared about doing the job right. I?d absolutely use APS again and would recommend them to anyone looking for electrical work or a home generator."
28 neighbors recently requested a quote
Avatar for Reynolds Home Solutions LLC
Reynolds Home Solutions LLC
New to Angi
Generator - Install - For Business

Serving Westover, 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

2 neighbors recently requested a quote
Avatar for Dunn's HVAC, Plumbing & Electrical
Dunn's HVAC, Plumbing & Electrical
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Westover, AL and surrounding areas

Approved (Corporate)

In business since 2014

Free estimates

Emergency services offered

At Dunn's Heating, Cooling, Plumbing, and Electrical, we know how hard it is to find a Dependable company you can trust. The time-consuming effort can be frustrating and overwhelming. We believe what matters is getting back to what’s important to YOU, so we provide dependable service Dunn right! Dunn's Heating, Cooling, Plumbing, and Electrical is built upon honesty, integrity, and trust. \n\nWe are your local choice for all your HVAC repair, installation, and service needs. We are proud to serve Anniston and Pelham, AL, as well as the surrounding cities. We are family-owned and also family-operated. As a local business, we care about and are invested in the well-being of our community and its future.

13 neighbors recently requested a quote
Avatar for THM Electrical and Maintenance Services, LLC
THM Electrical and Maintenance Services, LLC
4.9(
17
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Westover, AL and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"THM Electrical was very easy to work with. Very professional and price was exceptionally reasonable. Very knowledgeable towards work and what needed to be done. Compared to other electricians who gave estimates, THM saved me thousands of dollars and did a great job.. I highly recommend."
Response time2 days
Response rate86%
Recommended by93%of homeowners
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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

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.

The Westover, AL homeowners’ guide to generator installs

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