16 Best Solar Companies in El Cajon, CA (Jan 2023 Review)
We analyzed over 1500 solar companies in the nation,
and have selected the top 16 in El Cajon based on:
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Customer review scores
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Solar installers near you
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Company policies and services offered
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Accreditations and certifications
Please enter a valid 5-digit zip code!
Updated January 20, 2023
Why you can trust EcoWatch
Best solar companies in El Cajon
Looking for the best solar companies in El Cajon? Installing solar panels is an exciting home addition that many homeowners find rewarding for their wallets, communities and the planet. You may have to spend a decent amount of money upfront for solar panels, but switching to solar will save you money on your utility bills over many years. In fact, you can look forward to saving about $31,000 over 20 years.
In this article, we'll give you a list of the top El Cajon solar installers so you can make the best decision for your home's sustainable energy needs. Interested in knowing how much it'd cost to install a solar system on your roof? Click "get quote" below to get a free, no-obligation quote from a top-rated El Cajon solar installer.
Best National Provider
SunPower
- 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
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best Technology
Tesla Energy
- 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 El Cajon

Renewable USA
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Solar Roof Shingles
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Commercial Solar Services

♻ Long Beach Solar ♻
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Educational sales approach
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Locally owned and operated
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Maintenance and Repairs
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Commercial Solar Services
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Solar Batteries
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Solar Roof Shingles
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Solar Panels

Solar Source, Inc.
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Offers a free quote process
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Educational sales approach
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Has an online quote form
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Family owned and operated
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Excellent reputation
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Some reported issues with customer services
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Some reported communication issues
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Some reports of high-pressure sales tactics
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Some reports of long wait times for installation
Services Offered
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Solar Batteries
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Solar Panels
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Commercial Solar Services

San Diego Solar Inc
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Educational sales approach
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More transparent pricing than competitors
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Custom system designs
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Family owned and operated
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Roof Shingles
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Solar Panels

SolarQuest Inc
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Offers a free quote process
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Educational sales approach
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Excellent reputation
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Some reported communication issues
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Some reported issues with customer services
Services Offered
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Solar Panels
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Commercial Solar Services

Fusion Solar
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Can browse portfolio on website
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Educational sales approach
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Licensing and credentials transparency
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Semper Solaris
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Offers a free quote process
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Solar Roof Shingles

Sun Diego Solar Construction LLC
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Can browse portfolio on website
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Educational sales approach
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More transparent pricing than competitors
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Roof Shingles
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Solar Panels

48Solar & Roofing
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Can browse portfolio on website
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Educational sales approach
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More transparent pricing than competitors
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Custom system designs
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Roof Shingles
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Solar Panels

CM Solar Electric
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More transparent pricing than competitors
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Educational sales approach
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Family owned and operated
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Custom system designs
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Can browse portfolio on website
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Assists with maximizing rebate
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Roof Shingles
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Solar Panels

Sattler Solar Inc
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Can browse portfolio on website
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Offers a free quote process
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Educational sales approach
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Locally owned and operated
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Panels

Solar Energy Business Install and Cleaning Company
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More transparent pricing than competitors
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Educational sales approach
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Family owned and operated
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Can browse portfolio on website
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Assists with maximizing rebate
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Comprehensive service offerings
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Limited information available on website
Services Offered
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Removal & Reinstallation
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Maintenance and Repairs
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Commercial Solar Services
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Solar Batteries
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Solar Panels
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Solar Roof Shingles

HES Solar
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Offers a free quote process
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Educational sales approach
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Assists with maximizing rebate
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Batteries
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Solar Panels
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Solar Roof Shingles

Keegan Electric Solar
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Can browse portfolio on website
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Offers a free quote process
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Some reported communication issues
Services Offered
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Solar Batteries
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Maintenance and Repairs
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Commercial Solar Services
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Solar Panels

Johnson Solar - San Diego County's Best Veteran Owned Solar Installation Company
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels

EZ Solar & Electric
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Educational sales approach
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More transparent pricing than competitors
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Custom system designs
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Solar Roof Shingles
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Commercial Solar Services
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 El Cajon
Solar panels are powered by a free energy source — the sun — but to take advantage of this you first need to pay to set up your panels. There are quite a few factors you should consider when determining how much it will cost and how much you can save, including:
- Energy consumption: Installing solar panels may be an expensive option for households that don't consume a good amount of energy a month.
- Average daily sunlight: Since El Cajon gets lots of sunlight, your solar panel system will most likely be able to produce enough energy to power your whole home, which influences how much your electricity bills will be.
- Incentives: Along with the federal Solar Investment Tax Credit (ITC), which gives you a tax credit currently worth 30% of your overall installation cost, your state or local government may offer additional tax exemptions, credits or rebates that can help you save even more. Aside from incentives, you can save an average of $31,000 over 20 years with your system, too.
- Your household's power bills: Because of high monthly power bills in El Cajon, you could save about $920 a year with solar.
So is buying solar panels worth it? Whether you hope to decrease your electric bills, greenhouse gas emissions or both, solar panels are a solid investment for many El Cajon homeowners.
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Solar Incentives in El Cajon
There are lots of reasons why adopting solar power is beneficial. One of them consists of some government incentives you can take advantage of. Regardless of where you live, you can take advantage of the federal Solar Investment Tax Credit (ITC), which will let you claim 30% of how much you paid for your solar installation on your tax return, reducing the amount of taxes you owe that year. Plus, there may be some local incentives that stack with the ITC too. In our article on solar incentives, you can find out about the incentives you qualify for near you.
Environmental Impact of Switching to Solar in El Cajon
There are a few main reasons why people are considering solar energy: to help their wallet and the environment. A question many homeowners might be wondering about is how much can they really help protect the environment by going solar anyway? One thing to keep in mind is your overall carbon footprint. For example, if you spend lots of time commuting to work and have an electric vehicle, you can use solar energy for your home to power your EV and therefore help offset your carbon emissions. Once you go solar, your carbon emissions can be reduced by about 50 pounds a year. If you want to do your part for the environment, you'll no doubt get that there are many advantages to adopting solar power other than just saving money on bills. You can also help protect the environment, which some would argue is priceless.
Best National Provider
SunPower
- 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
- Great warranty coverage
- Representatives are experts on local policies
- Concierge service ensures steady communication
- Slightly limited service offerings
Best Technology
Tesla Energy
- 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 El Cajon, CA Solar Company Rankings FAQs
Which solar installation company is the best near me?
In El Cajon, Renewable USA is the most reputable local solar company. Our team of experts rates it 5.00 stars, so it's a great choice if you're looking to install solar panels on your home.
What is the negative environmental impact of making solar panels?
Producing solar panels uses chemicals and produces toxic waste that can be bad for the environment, which is the main drawback of solar panels.
Are solar panels worth it?
Solar panels need a considerable upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a collection of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.
What is the best type of solar panel?
The different types of solar panels are monocrystalline, polycrystalline and thin-film. Monocrystalline panels are more efficient but also more expensive. Polycrystalline panels are cheaper but also less efficient than monocrystalline. Thin-film solar panels are flexible, so they can be used where the other kinds can't, such as on curved surfaces or cars, but they are also less efficient. The best one for you depends on your budget, roof configuration and how much efficiency you're looking for.
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.