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Avatar for Eddie's electric
Eddie's electric
5.0(
1
)
Portable Generator - Repair

Serving Thermal, CA and surrounding areas

Approved

Small jobs welcome

Credit card accepted

"Excellent work. From the start he showed professionalism, punctuality, and great attention to detail. The installation was clean, well organized, and working perfectly both indoors and outdoors. He also explained everything clearly and made sure everything was safe and ready to use. I definitely recommend him for any electrical work — reliable service and top-quality results."
Avatar for On-Call Home Repair
On-Call Home Repair
New to Angi
Portable Generator - Repair

Serving Thermal, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Hi, my name is Matthew, and I started On-Call Home Repair back in 2023 with the idea of creating a hub for home repairs, maintenance, and construction. I want to provide all of our customers with excellent service and craftsmanship at a reasonable price. We focus on small to medium sized projects and repairs. If we do not specialize in it, we will refer you to one of our dedicated contractors and trade professionals.

Avatar for HEGGE ELECTRICAL CONTRACTORS
HEGGE ELECTRICAL CONTRACTORS
5.0(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Thermal, CA and surrounding areas

In business since 1988

Free estimates

Warranties offered

"I went with a local company that has been around for decades because I want an installer who will be here when I need service or follow-up in the future. Hegge Electric installed panels, subcontracted roofing preparation and completed all approvals in a timely manner with excellent workmanship. They completely refinished interior walls where drywall had to be removed for conduit, and you can't tell it was ever done! The system works perfectly and we are enjoying our green energy from a local company with a long reputation."
Residential Tesla Wall Connector installation
Commercial EV charger installation
Large custom lighting project
Thermal Club custom light fixture installation.
La Quinta Resort Underground Parking EV Charging Installation

+7

Recommended by94%of homeowners
Avatar for Gil's Electrical Service Inc
Gil's Electrical Service Inc
4.2(
943
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Thermal, CA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"There was an unexpected charge for punching a hole in the drywall and installing a five foot copper wire from nearest light switch box to feed to each of the 4 lights. There was a second upcharge to convert from 6 inch to the modern 4 inch diameter LED lights (expected). Unfortunately one of the workers started his work early failing to understand that 4 inch was to be installed, he cut a hole for 6 inch. Now the drywall has to be patched to close the hole. They were punctual, fast & cleaned up. There is more work to do, ie convert existing 6 inch incandescent down lights on the lower two floors, those total to about 15. This work was done on the third level. I would re-hire if these things were addressed."
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+10

Recommended by76%of homeowners
Avatar for Poillon Electric
Poillon Electric
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Thermal, CA and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"We live in the Joshua Tree area and had a Kohler generator installed in 2021. Unfortunately, by 2025, it had failed. A local electrical contractor inspected it but couldn’t repair the issue, so we turned to the expert—Pete Poillon. I’m incredibly glad we did. Pete promptly diagnosed the problem: the controller board needed replacing. Kohler confirmed the part was covered under warranty, but required us to contact their Rancho Cucamonga service location. That’s when things got costly. They charged $3.95 per mile plus $185 per hour for travel time, bringing the total service estimate to a staggering $1,500–$1,800. In hindsight, choosing a Kohler generator was a major misstep. If we had gone with Generac, warranty service would have been handled locally by Poillon Electric at no extra charge. Lesson learned—we won’t make that mistake"
Response time2 days
Recommended by75%of homeowners
HD Remodeling, Inc.
5.0(
78
)
Portable Generator - Repair

Serving Thermal, CA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"The contractors are truly the best in the business. They came with professionalism and completed the project and all the fixes that were needed quick. The great response time between Greg Serevetas and Nick Serevetas was incredible. I will continue to use this company for the rest of my life and I am thankful for their help.ð ºð ¸ð ºð ¸ð ºð ¸"
a
b
Response time2 days
Recommended by100%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. 

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.

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.

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.

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.

The Thermal, CA homeowners’ guide to generator installs

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