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Get matched with top solar panel pros in Castro Valley, CA

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TRUSTED BY CASTRO VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon34
    Verified solar panel services reviews

Find Solar panel pros in Castro Valley

Avatar for ELLISON ELECTRIC AND SOLAR INC

ELLISON ELECTRIC AND SOLAR INC

5.00(
6
)
Approved Pro

ELLISON ELECTRIC AND SOLAR INC

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

Commercial and residential service and installations. Panel upgrades, EV changing stations, solar, service and troubleshooting. Specializing in Electrical services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Ken was great. He installed a 110 outlet under my sink for a dishwasher. Ken also installed a 220v car charger for my Chevy Volt. Clean quick work at a great price."

Jeff B on December 2024

Commercial and residential service and installations. Panel upgrades, EV changing stations, solar, service and troubleshooting. Specializing in Electrical services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Ken was great. He installed a 110 outlet under my sink for a dishwasher. Ken also installed a 220v car charger for my Chevy Volt. Clean quick work at a great price."

Jeff B on December 2024


Avatar for Atomic Telecomm & Electrical Inc.

Atomic Telecomm & Electrical Inc.

4.94(
8
)
Approved Pro

Atomic Telecomm & Electrical Inc.

4.94(
8
)
Approved Pro
Customers say: Quick response
35 years of experience
Free onsite estimate

We can take on a wide range of residential projects to include computer network or wiring, telephone, security system installs and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Job was tough due to small working space. They persisted and got the work done! Appreciated the extra help with cleanup and arranging the dryer for maximum efficiency."

Sheree L on November 2024

We can take on a wide range of residential projects to include computer network or wiring, telephone, security system installs and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Job was tough due to small working space. They persisted and got the work done! Appreciated the extra help with cleanup and arranging the dryer for maximum efficiency."

Sheree L on November 2024


Avatar for EnergyAid

EnergyAid

4.07(
86
)
Approved Pro

EnergyAid

4.07(
86
)
Approved Pro
Customers say: True professional
426 local quotes requested
13 years of experience

EnergyAid is the leading provider of exceptional residential solar service and repair solutions in California. We specialize in meeting the unique needs of homeowners and asset managers in the solar industry. With our unwavering commitment to quality, reliability, and customer satisfaction, we have established ourselves as a leading authority in the field. We service the entire state of California. So no matter where you are located, EnergyAid is ready to deliver prompt and professional service directly to your doorstep. We take pride in employing our own team of highly skilled technicians, guaranteeing consistent workmanship and accountability. Unlike smaller service providers or companies that subcontract their services, we prioritize attention to detail. We ensure that every technician working on your solar system is a trusted EnergyAid employee.

"It would be wise to not sign an agreement nor pay upfront before doing a little research on what the job entails. In haste, I did't do any research before committing to the agreement and paying the full amount. In retrospect, I should have waited until I checked all the angles before committing to the job, I would have save over $700 on this project."

Wen S on August 2025

EnergyAid is the leading provider of exceptional residential solar service and repair solutions in California. We specialize in meeting the unique needs of homeowners and asset managers in the solar industry. With our unwavering commitment to quality, reliability, and customer satisfaction, we have established ourselves as a leading authority in the field. We service the entire state of California. So no matter where you are located, EnergyAid is ready to deliver prompt and professional service directly to your doorstep. We take pride in employing our own team of highly skilled technicians, guaranteeing consistent workmanship and accountability. Unlike smaller service providers or companies that subcontract their services, we prioritize attention to detail. We ensure that every technician working on your solar system is a trusted EnergyAid employee.

"It would be wise to not sign an agreement nor pay upfront before doing a little research on what the job entails. In haste, I did't do any research before committing to the agreement and paying the full amount. In retrospect, I should have waited until I checked all the angles before committing to the job, I would have save over $700 on this project."

Wen S on August 2025


Avatar for SOLARSESAME INC

SOLARSESAME INC

5.00(
5
)
Approved Pro

SOLARSESAME INC

5.00(
5
)
Approved Pro
3 years of experience
Free onsite estimate

At SolarSesame, we believe families deserve true financial security. We spent years helping homeowners save thousands with low, fixed-rate mortgages?but when energy bills started skyrocketing, we saw the same burden return. We knew it was time to step in again. After months of research, we found a better way: solar energy. We took the same heart and passion that built our foundation?and created SolarSesame: a company devoted to turning sunshine into savings and restoring true financial freedom for families.

"Great experience, simple transaction. Quality work with the right price and accountability."

Vikram G on November 2025

At SolarSesame, we believe families deserve true financial security. We spent years helping homeowners save thousands with low, fixed-rate mortgages?but when energy bills started skyrocketing, we saw the same burden return. We knew it was time to step in again. After months of research, we found a better way: solar energy. We took the same heart and passion that built our foundation?and created SolarSesame: a company devoted to turning sunshine into savings and restoring true financial freedom for families.

"Great experience, simple transaction. Quality work with the right price and accountability."

Vikram G on November 2025


Avatar for Payless Water Heaters & Plumbing Inc

Payless Water Heaters & Plumbing Inc

4.21(
121
)
Approved Pro

Payless Water Heaters & Plumbing Inc

4.21(
121
)
Approved Pro
Customers say: Super punctual
132 local quotes requested
21 years of experience

Payless Water Heaters provides Same day water heater Installation & Repair services. We also can install a New Tankless Water Heater the same day. We understand how important hot water is to your daily routine - Our team has over 30 years of combined industry-leading experience, which gives us greater insight into locating root problems and providing customized solutions. Unlike some technicians, we carefully survey the unit before starting any repairs. This allows us to accurately address the issue and create lasting solutions. As a Family owned and Locally operated business, we have deep roots in the community. Our mission is simple - provide the ultimate customer experience. This means always being on time, being professional, and being available, With upfront, honest pricing, and no extra charge for nights or weekends - If you're ready to get started, call (888)461-8249 if you need some help.

"Better than excellent. David was great. He explained all options, answered questions, completed the job faster than expected, and when it is time to replace my heater I will call on David and only David."

Georgia T on September 2025

Payless Water Heaters provides Same day water heater Installation & Repair services. We also can install a New Tankless Water Heater the same day. We understand how important hot water is to your daily routine - Our team has over 30 years of combined industry-leading experience, which gives us greater insight into locating root problems and providing customized solutions. Unlike some technicians, we carefully survey the unit before starting any repairs. This allows us to accurately address the issue and create lasting solutions. As a Family owned and Locally operated business, we have deep roots in the community. Our mission is simple - provide the ultimate customer experience. This means always being on time, being professional, and being available, With upfront, honest pricing, and no extra charge for nights or weekends - If you're ready to get started, call (888)461-8249 if you need some help.

"Better than excellent. David was great. He explained all options, answered questions, completed the job faster than expected, and when it is time to replace my heater I will call on David and only David."

Georgia T on September 2025


Avatar for Solar Technologies

Solar Technologies

4.86(
7
)
Approved Pro

Solar Technologies

4.86(
7
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
78 local quotes requested

Go solar with your local solar company in the San Francisco Bay Area! We Know Solar! Solar Technologies has installed more than 6,000 solar energy systems with our own certified, in-house crews. $0 down leasing options available, finance to own or purchase recommended. Go solar at no cost and save money every month. Call (831) 713-1935 for a FREE Quote.

Go solar with your local solar company in the San Francisco Bay Area! We Know Solar! Solar Technologies has installed more than 6,000 solar energy systems with our own certified, in-house crews. $0 down leasing options available, finance to own or purchase recommended. Go solar at no cost and save money every month. Call (831) 713-1935 for a FREE Quote.





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Solar Panels questions, answered by experts

Homeowners replace their solar panels after 25 years. That said, you don’t necessarily need to replace them at the 25-year mark. You’ll notice a declining ability to produce electricity over time. Most homeowners spring for a replacement when they notice their energy bills creeping up to regular levels or when solar panel repairs are extensive, frequent, and no longer economical.

Yes, you should tell your home insurance company about your solar panels. Even if you believe they’re covered by your existing policy, installing a solar panel system is a significant change to your home. This can affect coverage and premiums. By discussing your new solar panel installation with your insurance provider, you can be sure you have enough coverage and that the policy completely covers the panels against damage.

  • Installing a new electrical meter box

  • Replacing your meter base

  • Replacing your service entrance cable 

The cost to install or upgrade an electrical meter box ranges from $100 to $650, including $50 to $250 for the unit. The meter base passes the power from your electric company to your panel. The cost to replace a meter base is roughly $50 to $250. 

Service entrance cables are electrical cables with multiple wires, bringing power from electrical companies to residential buildings. The cost to replace a service entrance cable ranges roughly from $1,000 to $1,500.

Learn about common solar blockers in your area to determine how often you should wash solar panels and the best cleaning method:

  • Soot: If you have a fireplace, soot can disperse and accumulate on the solar panels.

  • Debris, dirt, and leaves: These natural elements require light cleaning. Being close to trees or living in a desert area can cause more of these to accumulate.

  • Pollen: Areas with a high pollen count require more frequent solar panel cleaning, and sticky plant material requires a deeper cleaning.

  • Bird droppings: Bird droppings are binding and more difficult to remove. Keep this in mind if you live near a lot of surrounding trees. 

It’s possible to install solar on a tar and gravel roof, but it’s far from the best roofing material for solar. Solar installations require roof penetrations, and although your solar installer will seal the holes, they still increase the risk of roof leaks. Flat roofs are already more likely to leak than sloped roofs, and adding solar will only make leaks more likely.

The Castro Valley, CA homeowners’ guide to solar panel services

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

What do you need done? We’ll find top pros.
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