Top-rated generator install pros.

Get matched with top generator install pros in Mariposa, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Mariposa, CA?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Mariposa, CA

*The Angi rating for Generator Install companies in Mariposa, CA 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 Mariposa, CA 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 July 12, 2026

Find Generator install pros in Mariposa

Avatar for Clear Horizon Home Solutions, Inc.
Clear Horizon Home Solutions, Inc.
4.3(
214
)

Serving Mariposa, CA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Luis, did a wonderful job installing a retaining wall, pavers, laying sod and river rock edging for us. We are very satisfied with how lovely everything looks."
1
2
3
Kitchen Remodels
2

+2

Recommended by82%of homeowners
Request Quote
Avatar for All Gen Services, LLC-Unlicensed Contractor
All Gen Services, LLC-Unlicensed Contractor
5.0(
1
)

Serving Mariposa, CA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

Protect your home from the risks caused by sudden power outages with a generator from Generac, the industry leader, installed by the experts at All Gen Services LLc. In the event of a power failure, these reliable systems automatically start up, supplying electricity to your home until the local power utility restores service. Permanent installation of a standby generator is not a do-it-yourself project. All Gen Services LLc has factory-trained technicians who meet Generac's high standards for service and customer satisfaction. Our service professionals meet warranty conditions, ensure safe and proper operation, and are always here to provide Emergency Assistance, 7 days a week. We dispatch technicians quickly, and our team is equipped to resolve most repairs right then and there.

Response time6 days
Request Quote
San Diego Pro Electric LLC
5.0(
1
)

Serving Mariposa, CA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

San Diego Pro Electric LLC is committed to excellence in every aspect of our\nbusiness. We uphold a standard of integrity bound by fairness, honesty,\nand personal responsibility. Our distinction is the quality of service\nwe bring to our customers. Accurate knowledge of\nour trade combined with ability is what makes us true professionals.\nAbove all, we are watchful of our customers' interests and make their\nconcerns the basis of our business.

Response time5 days
Recommended by100%of homeowners
Request Quote
Jesus Cortez Electric - Unlicensed Contractor
New to Angi

Serving Mariposa, CA and surrounding areas

In business since 2005

Free estimates

Credit card accepted

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

Response time50 mins
Request Quote
ARC ELECTRIC
New to Angi

Serving Mariposa, CA and surrounding areas

In business since 2023

Free estimates

Offers commercial services

We work extremely hard for the owner and our company strives to take care of all our client's\nunique needs and always have the owner's best interest at heart. We are very detailed and\nmeticulous in our work. Our long-term vision is for us to become your go to Contractor with\ncapabilities to do multiple types of projects.\nCall us today youÂLOLl be relieved you did. Thank you

Request Quote
Omar Gomez Electric - Unlicensed Contractor
New to Angi

Serving Mariposa, CA and surrounding areas

In business since 2018

Free estimates

Omar Gomez Electric 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.

Request Quote
Showing 1-10 of 13
Generator Install questions, answered by experts

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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 Mariposa, CA 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