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Verified Reviews for Generator Install pros in Tempe, AZ

*The Angi rating for Generator Install companies in Tempe, AZ 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 Tempe, AZ 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 May 22, 2026

Find Generator install pros in Tempe

Avatar for Arizona Backup Power
Arizona Backup Power
5.0(
62
)

Serving Tempe, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"There's a certain comfort knowing you're prepared, and thanks to Arizona Backup Power Company, I have that. The generator they installed works like a charm. Reliable service, awesome team and affordable prices."
Generac 24kw Standby Generator
Generac 24kW backup power
Generac home backup power generator
Standby Generators
Arizona Backup Power Trucks

+15

Response time1 day
Response rate97%
1 neighbors recently requested a quote
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Avatar for T.E.C. Electric, LLC
T.E.C. Electric, LLC
4.8(
50
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Suggested the best solution for our electrical installation. Went out of their way to accommodate this project."
Response time5 hrs
5 neighbors recently requested a quote
Recommended by79%of homeowners
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Avatar for Static Sun Electric and Solar, LLC
Static Sun Electric and Solar, LLC
4.9(
88
)

Serving Tempe, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"The tech installed new bathrooms exhaust fans and new ductwork. He did a great job."
Solar job
Solar Job
EV Charger Flagstaff
Response time1 day
Response rate86%
7 neighbors recently requested a quote
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Avatar for Andrew's Electrical, Inc.
Andrew's Electrical, Inc.
4.8(
26
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"David quoted us a great price for the install. Dustin came out a few days later and did a great looking install and even mounted my charging unit on the wall for us. I recommend Andrew's Electrical."
Response time1 day
Response rate98%
Recommended by96%of homeowners
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Avatar for Sand and Sun Electric, LLC
Sand and Sun Electric, LLC
5.0(
24
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"We found Kelvin on Angiâ s website and he was amazing!!!! We needed a light fixture installed and he took the time to make sure it was done to the highest of standards. He was so pleasant to talk to and explained everything thoroughly as well! We highly recommend Sand and Sun Electric for any electrical needs that you have. He truly wants to help. If we ever need anything else, we will be calling him."
Response time3 hrs
Recommended by95%of homeowners
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Avatar for Grayelectric LLC
Grayelectric LLC
4.9(
21
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Super knowledgable! Very quick, got rite down to business, worked as a team, you could see the a Great working experience between the two techs. They The will be our electrical company for many years to come!"
Response time8 hrs
8 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for VR Electrical Services, LLC
VR Electrical Services, LLC
5.0(
13
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Did what I requested and added some items that weren’t on the quote without additional charge"
Commercial Electrical Installation
Mod Pizza on Verrado
Commercial Electrical rough- in
Commercial Electrical equipment installation
Commercial wiring

+8

Response time7 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Patrick Riley | Isley's Cooling Heating & Plumbing
Patrick Riley | Isley's Cooling Heating & Plumbing
4.2(
230
)

Serving Tempe, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"The installer was professional courteous. Answered all my questions and was very clean after the install of the water heater."
Main Line Dig
Main Line roots stoppage
Waterline repair
Water Heater Install
Tankless Water Heater and Water Purifier

+13

Response time4 hrs
Response rate99%
111 neighbors recently requested a quote
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Avatar for Mister Wright Home Services, LLC
Mister Wright Home Services, LLC
5.0(
6
)

Serving Tempe, AZ and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Had a great experience with this company for an electrical panel upgrade. The owner of the company showed up on time, was friendly, and explained everything in a way that was easy to understand. The work looks great, everything is working perfectly, and they cleaned up after themselves when they were finished. It's nice to find a company that's professional and honest. Thanks for the excellent service!"
2 neighbors recently requested a quote
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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.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Tempe, AZ homeowners’ guide to generator installs

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

See all articles