11 Best Solar Companies in Castro Valley, CA (Sep 2022 Review)

We analyzed over 1500 solar companies in the nation,
and have selected the top 11 in Castro Valley based on:

  • Customer review scores
  • Solar installers near you
  • Company policies and services offered
  • Accreditations and certifications
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EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated 9/16/2022

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best solar companies in Castro Valley

When choosing between the best solar installers, Castro Valley homeowners have more providers to choose from than ever before, which can be a lot to consider, but we're here to make switching to solar power easier. After 20 years of offsetting your energy costs with a solar panel system, you can save about $33,000 on your electricity bills.

The cost of installing solar panels can vary significantly according to your home's setup and your overall energy needs. Read on to see our picks for the top solar companies in the city, or get connected with a certified solar company near you right away by clicking the button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Technology

The Green Panel

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch Rankings for Solar Companies in Castro Valley

Best Local Installer
ecowatch badge icon
APG Solar logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

APG Solar

  • Pros icon Can browse portfolio on website
  • Pros icon Offers a free quote process
  • Pros icon Educational sales approach
  • Pros icon Custom system designs
  • Pros icon Excellent reputation
  • Con icon Some reported issues with customer services
  • Con icon Some reported communication issues

Services Offered

  • Service icon Solar Batteries
  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: http://www.apgsolar.com
Address: , Atwater, CA 95301-6019
Phone: (209) 358-1468
Outstanding Local Installer
ecowatch badge icon
Extreme Solar Solutions logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Extreme Solar Solutions

  • Pros icon Educational sales approach
  • Pros icon Locally owned and operated
  • Pros icon More transparent pricing than competitors
  • Pros icon Licensing and credentials transparency
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: http://www.extremesolarsolutions.com/
Address: 387 Atwater Blvd, Atwater, CA 95301
Phone: (209) 489-0297
Experienced Installer
ecowatch badge icon
Mid-State Solar logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Mid-State Solar

  • Pros icon Educational sales approach
  • Pros icon Custom system designs
  • Con icon Some reported communication issues
  • Con icon Some reports of long wait times for installation
  • Con icon Some reported issues with customer services
  • Con icon Some reports of high-pressure sales tactics

Services Offered

  • Service icon Solar Batteries
  • Service icon Solar Panels
  • Service icon Commercial Solar Services

Website: http://www.midstatesolar.com
Address: 450 Glass Ln Suite A-1, Modesto, CA 95356
Phone: (209) 551-7880
Outstanding Local Installer
ecowatch badge icon
SunLectric logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

SunLectric

  • Pros icon More transparent pricing than competitors
  • Pros icon Family owned and operated
  • Pros icon Custom system designs
  • Pros icon Can browse portfolio on website
  • Pros icon Licensing and credentials transparency
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Batteries
  • Service icon Solar Panels
  • Service icon Commercial Solar Services

Website: http://www.mysolarcontractor.com/
Address: 247 S Sierra Ave, Oakdale, CA 95361
Phone: (209) 565-4786
Outstanding Local Installer
ecowatch badge icon
Honey's Air & Solar logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Honey's Air & Solar

  • Pros icon Educational sales approach
  • Pros icon More transparent pricing than competitors
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance and Repairs
  • Service icon Solar Panels

Website: https://honeysair.com/
Address: 501 Bitritto Wy, Modesto, CA 95356
Phone: (209) 566-1978
Outstanding Local Installer
ecowatch badge icon
Apex Electric Inc logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Apex Electric Inc

  • Pros icon Can browse portfolio on website
  • Pros icon Educational sales approach
  • Pros icon More transparent pricing than competitors
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance and Repairs
  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: http://www.apexelectric.biz/
Address: 806 Rosina St, Escalon, CA 95320
Phone: (209) 595-1161
Outstanding Local Installer
ecowatch badge icon
Gold Electric Inc logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Gold Electric Inc

  • Pros icon Can browse portfolio on website
  • Pros icon Educational sales approach
  • Pros icon More transparent pricing than competitors
  • Pros icon Custom system designs
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: http://www.goldelectricinc.com/
Address: 821 Murphys Creek Rd, Murphys, CA 95247
Phone: (209) 728-3371
Experienced Installer
ecowatch badge icon
Mid Matthews Construction logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Mid Matthews Construction

  • Pros icon Educational sales approach
  • Pros icon More transparent pricing than competitors
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Panels
  • Service icon Commercial Solar Services

Website: http://www.midmatthews.com
Address: 31 Selene Way, Copperopolis, CA 95228-9396
Phone: (209) 785-8500
Outstanding Local Installer
ecowatch badge icon
Young's Air Conditioning logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Young's Air Conditioning

  • Pros icon Educational sales approach
  • Pros icon Assists with maximizing rebate
  • Pros icon Custom system designs
  • Pros icon More transparent pricing than competitors
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance and Repairs
  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: https://www.youngsair.com/
Address: 25 West G St, Los Banos, CA 93635
Phone: (209) 826-4807
Experienced Installer
ecowatch badge icon
Solaron Pool Heating, Inc. logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Solaron Pool Heating, Inc.

  • Pros icon Can browse portfolio on website
  • Pros icon Educational sales approach
  • Pros icon Excellent reputation
  • Con icon Some reports of long wait times for installation
  • Con icon Some reports of high-pressure sales tactics
  • Con icon Some reported issues with customer services
  • Con icon Some reported communication issues

Services Offered

  • Service icon Commercial Solar Services
  • Service icon Solar Panels

Website: http://www.solaron.net
Address: 3900 Middletown Ct, Campbell, CA 95008
Phone: (408) 292-4328
Outstanding Local Installer
ecowatch badge icon
Element Solar Panel Cleaning logo

Local Service

EcoWatch Rating

star-full star-full star-full star-full star-full

Element Solar Panel Cleaning

  • Pros icon Can browse portfolio on website
  • Pros icon Educational sales approach
  • Pros icon Speedy and efficient installations
  • Pros icon More transparent pricing than competitors
  • Pros icon Excellent reputation
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Solar Services
  • Service icon Solar Roof Shingles
  • Service icon Solar Panels

Website: https://www.elementsolarcleaning.com/
Address: 14850 CA-4 Ste A-140, Discovery Bay, CA 94505
Phone: (408) 422-3809

Solar Company Ranking Methodology


Click here to see a more detailed overview of our solar company ranking methodology.

The Cost and Benefits of Solar in Castro Valley

While solar panels can help save you a decent chunk of change on utility bills over time, it's necessary to consider the startup costs. There are quite a few factors you should take into consideration when determining costs and your potential savings, such as:

  • The type of solar panels you have the money for: This hinges on what your budget is.
  • Whether or not your roof gets a lot of direct sunlight: This, along with the configuration of your roof, affects affect how much energy your solar panels can produce.
  • Your current power bills: Solar panels can significantly reduce, or completely eradicate, your utility bills. In Castro Valley, you can save an average of $88 a month.
  • Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, lets you deduct 30% of the cost of installing your solar panel system from your taxes. Plus, not including incentives, you can save about $33,000 over 20 years on your energy bills.

As a result of solar panels decreasing in cost as well as local and federal solar incentives, they are a cost-effective investment for the majority of homeowners.

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For an idea of both how much you could save and impact the environment by switching to solar power, you can try out the calculator below. You can also view our solar panel cost guide for Castro Valley, CA.

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Solar Incentives in Castro Valley

There are many good reasons why you should switch to solar. One of them includes some government incentives that can help save you some money. These incentives usually consist of cash rebates, tax benefits and/or solar renewable energy credits. They can lower how much you pay for going solar by 26 to 50% in some cases. In the table below, you can find out about the incentives you qualify for near you.

Name Property Tax Exclusion for Solar Energy Systems and Solar Plus Storage System
Website Visit here
More Info Click here

Name Western Riverside Council of Governments - Home Energy Renovation Opportunity (HERO) Financing Program
Website Visit here
More Info Click here

Name Local Option - Municipal Energy Districts
Website Visit here
More Info Click here

Name Self-Generation Incentive Program
Website Visit here
More Info Click here

Name Renewable Market Adjusting Tariff (ReMAT)
Incentive Amount
Website Visit here
More Info Click here

Name LADWP - Feed-in Tariff (FiT) Program
Website Visit here
More Info Click here

Name California Solar Initiative - Solar Thermal Program
Website Visit here
More Info Click here

Name Residential Renewable Energy Tax Credit
Website Visit here
More Info Click here

Environmental Impact of Switching to Solar in Castro Valley

An important reason so many consider switching to solar power is to help reduce their environmental impact. Something many homeowners might be wondering about is how much can they really help save the environment by switching to solar power anyway? In a place like Castro Valley where commute times can be very long, going solar can help help reduce the carbon footprint of driving a lot. Once you go solar, your carbon footprint can be lowered by about 50 pounds a year. Since solar power is plentiful and generates electricity without free from carbon dioxide emissions, installing solar panels is one easy step you can take to help preserve the environment.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Best Regional Coverage

Momentum Solar

★★★★★
4.5

  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best Technology

The Green Panel

★★★★★
4.5

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Castro Valley, CA Solar Company Rankings FAQs

What is the top solar company in Castro Valley?

In Castro Valley, Solar Harmonics is the best local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're planning on installing solar panels on your house.

What are some of the advantages and disadvantages of installing solar panels?

A few of the biggest pros are that it decreases your power bills, it's eco-friendly, and it gives you a decent return on your investment (ROI). The most notable cons are that solar panels don't work as well when there's limited direct sunlight, there is a high upfront cost and solar panels can be an eyesore.

How long does it take for solar to pay for itself?

The average payback period for solar panel installation is about 5.5 years, but the exact period depends on the cost of electricity where you are, incentives and net metering programs.

What is the best kind of solar panel?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. In terms of efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, how much you're willing to spend and desired energy output.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.

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