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Avatar for LT Generators
LT Generators
4.3(
82
)

Serving Glendora, CA and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"The crew very polite and informative. The whole house generator installed in one day and my place was left clean. The installation project was done in a cosmetic pleasing manner and no ugly pipes or wires are visible. I was given a detailed cost of the project and kept informed at all times. It was not the lowest bid but the work was excellent and I am very happy with the finished project. The office staff are very helpful and their excellent service and detailed bid is why I chose to go with LT Generator."
22kw Generac Natural Gas Generator
27kw Generac Natural Gas Generator
Kohler Liquid Cooled
27kw Generac Natural Gas Generator
Kohler Air Cooled 20kW

+12

Response time2 days
36 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for PS Electric
PS Electric
5.0(
50
)

Serving Glendora, CA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

"The best price around and the customer service was exceptional. The technician was professional and only took a couple of hours to install. Explained how everything worked and was ready to go!"
Electrical Project
Additional Photos
Additional Photos
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Additional Photos

+21

Response time1 day
8 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Electra-Comm, Inc.
Electra-Comm, Inc.
4.7(
70
)

Serving Glendora, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Ryan, Samantha and Jesus were really easy to work with. They helped me work through installing an EV charging station and to process getting a rebate with LADWP. Ryan helped me understand the process and how the EV install works, plus get permits! I couldn't be happier!"
Solar paneling
Scissor lift
Electrical box and panel
Installing recessed lighting
Response time5 hrs
Recommended by98%of homeowners
Avatar for Albrik Electric Co.
Albrik Electric Co.
5.0(
19
)

Serving Glendora, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"Albrik Electric Co was contracted out as a 3rd party to complete an installation for a business client. The former electrical contractor was let go and Albrik Electric Co stepped in to resume the work. Between the ease of communication, the quality of work, flexibility of work time, and fair pricing, I highly recommend using Albrik Electric Co. We will consider using this company again for future projects."
Response time9 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
18
)

Serving Glendora, CA and surrounding areas

Approved

Emergency services offered

Warranties offered

Offers commercial services

"Sergio did a fantastic job! Very happy with the clean install of my tier 2 charger and he added a plug down below my panel. Would recommend for any sort of EV charging installs! Clear communicator, showed up when he said he would and his services were well-priced!"
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade

+1

5 neighbors recently requested a quote
Martin's Electrical & Lighting Company
4.8(
100
)

Serving Glendora, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"The whole process, from estimate to follow-up service, was superb. There was an issue with the installed timer. A simple request and the replacement was scheduled for replacement within a week at no charge. A request for an upgrade was also done quickly for a small charge. I highly recommend Martin!"
New Samsung Flat Panel!!
 Recess Lights
 Smart Phone this Code for Specials!!!
 Kitchen Lighting
Flat Panel TV

+15

Recommended by98%of homeowners
Avatar for All Electrical Services
All Electrical Services
4.7(
35
)

Serving Glendora, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Upon providing a thorough work order and price detail, Emin and his employees came on time the next day to start the project the whole house grounding and EV charger installation. Employees are certified and very knowledgeable, did a great job overall. Will hire again for future project!"
Additional Photos
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Additional Photos
Additional Photos
Response time8 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for ZERO ELECTRIC
ZERO ELECTRIC
4.9(
10
)

Serving Glendora, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Highly Recommended! We have hired Zero Electric to do several jobs at our apartment complex including installing a generator, EV chargers, new panel, and even installing recessed lighting in the units. They handled all aspects of the projects and had top notch communication throughout. The team has always been quick and professional. We will continue using Zero Electric for our electrical needs."
Additional Photos
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Additional Photos

+1

2 neighbors recently requested a quote
Recommended by70%of homeowners
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Generator Install questions, answered by experts

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.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

The Glendora, CA homeowners’ guide to generator installs

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