Key Takeaways
- The best solar installers in Southern California combine roofing expertise with NABCEP-certified solar installation, protecting your roof at every panel penetration point.
- Homeowners should verify a California C-46 or C-10 license, NABCEP certification, and manufacturer designations like Owens Corning Platinum Preferred before signing any contract.
- Bundling roof replacement with solar panel installation under one crew eliminates coordination problems, reduces long-term costs, and preserves a single warranty chain.
- A no-deposit, pay-upon-completion policy protects homeowners from paying for work that has not been inspected and approved.
- Southern California’s high UV exposure, Santa Ana winds, and Title 24 building requirements make local experience a deciding factor when choosing a solar installation company.
Quick Links
- Why Choosing the Right Solar Installer Matters
- How We Evaluated the Best Solar Installers
- The 5 Best Solar Installers for Southern California Homes
- Comparison Table
- Should You Hire a Combined Roofing and Solar Company?
- What Certifications Should the Best Solar Installers Have?
- Why August Roofing and Solar Stands Out
- People Also Ask
- Frequently Asked Questions
Why Choosing the Best Solar Installers Matters Before You Sign
Finding the best solar installers in Southern California is harder than most homeowners expect. Dozens of companies run ads promising fast installations and low prices, but the real differences surface after the sales call ends. A poorly chosen solar installation company in Southern California can leave you with roof leaks, permit delays, or a system that underperforms for years.
Your roof takes the full force of the region’s climate. Intense UV radiation degrades roofing materials faster than in cooler parts of the country. Santa Ana winds stress panel mounts and flashing at every penetration point. In foothill communities, CAL FIRE ember-resistant roofing requirements add another layer of complexity that many solar-only companies are not trained to handle.
Solar panels are bolted directly to your roof structure and are expected to produce power for 25 years or more. If the installer does not understand how your roof system works at a structural level, you risk leaks at penetration points, voided roof warranties, and expensive repairs down the road.
The right installer evaluates your roof condition first, addresses any issues, and then designs a solar array that works with your roof rather than against it. That sequence matters more than most homeowners realize when they start shopping.
How We Evaluated the Best Solar Installers for Southern California
There is no shortage of solar companies operating across the region. We narrowed the field by focusing on the criteria that directly affect a homeowner’s experience, costs, and long-term satisfaction.
- Roofing and solar expertise: Can the company handle both your roof and your panels with one in-house crew? Separate contractors often create gaps in accountability.
- Local experience: Years of working in Southern California means the installer understands local building codes, utility interconnection with Southern California Edison, and climate-specific roofing requirements under Title 24.
- Certifications and licensing: We looked for a valid California C-46 solar contractor license (or C-10 electrical), NABCEP certification, and manufacturer designations like Owens Corning Platinum Preferred.
- Customer reviews: We reviewed verified feedback on Google, Yelp, and SolarReviews to see how each company performs after installation day.
- Warranty coverage: A strong warranty covers both equipment and workmanship. We checked what each company guarantees and for how long.
- Payment terms: We noted whether homeowners must pay a deposit upfront or can pay after the work is complete and inspected.
Q: Why does it matter if a solar company also does roofing?
A: Solar panels are mounted through your roof membrane. If the installer does not understand underlayment, flashing, and load distribution, penetration points can leak. A company with both roofing and solar expertise protects both systems with one installation.
The 5 Best Solar Installers for Southern California Homes in 2026
1. August Roofing and Solar: Best Overall for Southern California Homes
If you want a single local team to handle your roof and your solar panel installation from start to finish, August Roofing and Solar is the strongest option on this list. Based in Southern California since 1991, the company pairs over 30 years of roofing knowledge with NABCEP-certified solar work.
What separates August Roofing and Solar from most competitors is that panels are installed by trained roofers, not a separate solar subcontractor. This reduces the risk of roof penetration issues, misaligned flashing, or warranty conflicts between two different companies.
August Roofing and Solar holds an Owens Corning Platinum Preferred Contractor designation, TRI certification, and BBB 5-star accreditation. The company carries a 4.9 rating from over 200 Google reviews. No deposit is required. You pay only after your project is complete and you confirm satisfaction.
Before any work begins, August provides a free Roof Health Evaluation with photo documentation so you can see the actual condition of your roof. That diagnostic-first approach eliminates guesswork and helps you understand whether your roof needs attention before panels go on.
August Roofing and Solar Benefits
- Roof and solar under one crew: Panels are installed by experienced roofers, reducing leak risk and eliminating coordination between separate contractors.
- Free Roof Health Evaluation: A full inspection with photo documentation before recommending any work.
- No deposit, pay upon completion: You pay nothing until the project is finished and inspected.
- Owens Corning Platinum Preferred status: Only a small percentage of roofing contractors earn this designation, which includes enhanced manufacturer warranty options.
- SolaRoof bundling program: Homeowners who need both a new roof and solar can bundle both projects under one contract.
Pros
- Combined roofing and solar expertise with dedicated in-house crews
- Over 30 years of local Southern California experience with verified certifications
- No money down with a pay-upon-completion guarantee
Cons
- Service area is focused on Southern California, so homeowners outside the region need to look elsewhere
- As a locally operated company, project scheduling may vary during peak demand seasons
- The company focuses on residential projects, so commercial property owners may need a different contractor
2. NRG Clean Power: An Established Installer With a Price-Match Policy
NRG Clean Power has been in the solar business since 1987 and operates across California. The company offers a price-match guarantee, meaning if you find a lower quote elsewhere, NRG will match it.
NRG focuses on solar panel and battery installations, including Tesla Powerwall systems. Installation is handled by subcontracted crews in most areas. The company assigns different coordinators at each phase of the project, which can streamline communication for some homeowners but create gaps for others.
NRG Clean Power Benefits
- Price-match guarantee: NRG will match a lower quote from another installer.
- Battery backup options: Installs Tesla Powerwall and Enphase battery systems alongside solar panels.
- Multi-stage project tracking: Assigns coordinators at each phase and offers an app for monitoring progress.
Pros
- Offers a price-match guarantee on solar installations
- Installs multiple battery brands including Tesla Powerwall
- Has operated in California since 1987
Cons
- Installation is subcontracted to third-party crews, which can affect consistency
- Multiple project coordinators can lead to communication gaps between phases
- Does not offer in-house roofing services, so a separate contractor is needed for roof work
3. AMECO Solar: A Family-Owned Company With Solar and Roofing Since 1974
AMECO Solar has been installing solar systems since 1974, making it one of the longer-running solar companies in California. The company also offers roof replacement services. AMECO holds a 4.56 rating from over 120 reviews on SolarReviews.
AMECO handles permitting, inspection scheduling, and incentive paperwork on behalf of homeowners. The company uses a combination of in-house staff and subcontracted installation crews for project execution.
AMECO Solar Benefits
- Decades of experience: Over 50 years in the solar industry.
- Solar and roofing under one contract: Can coordinate both roof replacement and panel installation.
- Permitting and incentive assistance: Files permits and helps homeowners apply for available tax credits and rebates.
Pros
- Over 50 years of experience in the solar industry
- Offers combined roofing and solar project coordination
- Handles permitting and rebate paperwork
Cons
- Uses subcontracted crews for installation, which has led to some inspection failures noted in reviews
- Communication during the project has been a recurring concern in customer feedback
- Does not hold manufacturer certifications comparable to Owens Corning Platinum Preferred status
4. Semper Solaris: A Veteran-Owned Company With Solar and Roofing in Select States
Semper Solaris was founded in San Diego in 2012 and is a veteran-owned business. The company offers solar installations, roofing, battery storage, and HVAC services. Semper operates in California, Texas, and Florida and reports over 10,000 systems installed.
Semper Solaris is a certified Tesla Powerwall installer and holds NABCEP certification with an A+ BBB rating. However, Semper does not offer its own workmanship warranty. Instead, it passes through manufacturer equipment warranties only, which means installation-related issues may not be covered.
Semper Solaris Benefits
- Veteran-owned company: Operates on military values of integrity and service.
- Multiple home services: Covers solar, roofing, batteries, and HVAC.
- Tesla Powerwall certified: Authorized installer of Tesla’s home battery product.
Pros
- Offers solar, roofing, battery, and HVAC services in one company
- A+ BBB rating and NABCEP-certified technicians
- Veteran-owned with a community giving program
Cons
- Does not offer a workmanship warranty on labor, only manufacturer pass-through warranties
- Some customers have reported project timelines extending well beyond initial estimates
- Available only in California, Texas, and Florida
Q: What is the difference between a workmanship warranty and a manufacturer warranty?
A: A manufacturer warranty covers defective panels or inverters. A workmanship warranty covers the installation itself, including how penetrations, wiring, and mounts were done. Without a workmanship warranty, you may be responsible for labor costs to fix installation errors even if the equipment is covered.
5. Tesla: A Nationally Recognized Brand With Solar Panels and Battery Storage
Tesla offers solar panels, the Solar Roof product, and the Powerwall battery. Installations are available in all 50 states through an online ordering process with a virtual home assessment instead of an in-person site visit.
Tesla’s inverter operates at 97.5% efficiency. The company offers a 10-year workmanship warranty plus a 25-year panel performance guarantee. Tesla uses third-party installers in most markets, so your experience may vary by region.
Tesla Benefits
- Powerwall battery: Tesla’s 13.5 kWh home battery is one of the most widely installed energy storage products.
- Solar Roof option: Solar shingles that replace your entire roof while generating electricity.
- Nationwide availability: Available in all 50 states with an online ordering process.
Pros
- Offers solar panels, Solar Roof, and Powerwall battery systems
- Available in all 50 states with online ordering
- Inverter efficiency rated at 97.5%
Cons
- Uses third-party subcontractors for installation, and customer service quality varies by region
- Wait times for installation can reach several months to over a year
- Does not offer in-house roofing services, so roof condition must be addressed separately before panel installation
Comparison Table: Best Solar Installers for Southern California
| Installer | In-House Roof + Solar | Owens Corning Platinum | NABCEP Certified | No Deposit Required | Workmanship Warranty |
|---|---|---|---|---|---|
| August Roofing and Solar | Yes | Yes | Yes | Yes | Yes |
| NRG Clean Power | No | No | Not confirmed | No | Limited |
| AMECO Solar | Partial (subcontracted) | No | Not confirmed | No | Limited |
| Semper Solaris | Partial | No | Yes | No | No (pass-through only) |
| Tesla | No | No | Not confirmed | No | Yes (10 years) |
Should You Hire a Combined Roofing and Solar Installation Company in Southern California?
Your roof is the foundation of any solar installation. If your roof has damage, worn flashing, or aging materials, installing panels on top of it creates a problem you will eventually pay to fix. A combined roofing and solar company evaluates your roof condition first and addresses issues before panel installation begins.
Southern California’s climate makes this evaluation especially important. The region’s high UV index degrades roofing materials faster than cooler climates. Santa Ana winds stress panel mounts and the flashing around roof penetrations. In foothill communities, CAL FIRE requires ember-resistant roofing materials that not every solar-only installer is trained to work with.
According to the U.S. Department of Energy, California leads the country in residential solar capacity. Choosing a company with both roofing materials knowledge and solar certification helps protect that investment over its full 25-year lifespan.
When one crew handles both your roof and your panels, you get one point of accountability, one warranty conversation, and no finger-pointing between separate contractors if something goes wrong.
Q: What happens if I install solar on an old roof and the roof fails later?
A: You will need to pay to have the panels removed, stored, the roof replaced, and the panels reinstalled. This typically adds $3,000 to $5,000 or more to the total cost. Having your roof evaluated before solar installation avoids this scenario entirely.
What Certifications Should the Best Solar Installers Have?
At a minimum, your solar installer should hold a valid California contractor’s license. A C-46 license covers solar energy system installation. A C-10 license covers electrical work. Both are issued by the California Contractors State License Board (CSLB), and you can verify any contractor’s license status in about two minutes through the CSLB online database.
Beyond licensing, NABCEP certification (North American Board of Certified Energy Practitioners) is the most widely recognized industry credential for solar professionals. NABCEP confirms that the installer has passed rigorous technical testing and follows established standards for system design and installation.
For roofing, look for manufacturer-specific designations. An Owens Corning Platinum Preferred Contractor must meet quality benchmarks and maintain verified customer satisfaction scores. This is not a purchased badge. It requires ongoing performance reviews.
August Roofing and Solar holds both NABCEP and Owens Corning Platinum Preferred certifications, along with TRI certification and BBB 5-star accreditation. That combination of solar and roofing credentials under one company is uncommon in this market.
Q: How do I verify a solar installer’s California license?
A: Visit the California Contractors State License Board (CSLB) website and search by company name or license number. The database shows license status, classification, bond information, and any complaints on file. This check takes less than two minutes.
Why August Roofing and Solar Stands Out Among the Best Solar Installers
August Roofing and Solar is the only company on this list that pairs in-house roofing crews with NABCEP-certified solar installation under one local operation. That dual expertise eliminates the coordination headaches that come with hiring separate roofing and solar contractors.
The company protects homeowners with a no-deposit, pay-upon-completion policy. You do not hand over any money until the project is finished and you have confirmed you are satisfied. That level of financial commitment to homeowner confidence is uncommon in the construction industry.
With over 30 years of local experience, Owens Corning Platinum Preferred Contractor status, and a 4.9 Google rating from hundreds of verified reviews, August Roofing and Solar delivers credentialed, transparent service. The company’s SolaRoof bundling program allows homeowners who need both a new roof and solar panels to complete both projects under one contract, simplifying the process and protecting long-term performance.
If you are comparing the best solar installers for Southern California and want a company that understands your roof as well as your electrical system, August Roofing and Solar belongs at the top of your list.
People Also Ask
What is the best solar company in Southern California?
The best solar company depends on whether you need roofing work alongside your panels. For homeowners who want both services under one crew, August Roofing and Solar offers NABCEP-certified solar installation combined with Owens Corning Platinum Preferred roofing expertise. For panel-only installations, NRG Clean Power and Tesla are also widely used options.
How much does solar installation cost in Southern California in 2026?
The average cost of a residential solar system in Southern California ranges from $15,000 to $30,000 before the federal tax credit. The 30% Clean Electricity Investment Tax Credit can reduce that cost significantly. Final pricing depends on system size, panel brand, and whether roof work is needed before panels are installed.
Is it worth getting solar panels in Southern California?
Southern California receives over 280 sunny days per year, making it one of the strongest regions in the country for solar energy production. Most homeowners see a return on investment within 6 to 10 years. Net metering through Southern California Edison allows you to receive bill credits for excess energy your system produces.
Do I need to replace my roof before installing solar?
If your roof is more than 15 years old or shows signs of damage, replacing it before solar installation is typically the smarter financial decision. Removing and reinstalling panels later for a roof replacement adds $3,000 to $5,000 or more in extra costs. A free roof evaluation can help you determine whether replacement is needed first.
Frequently Asked Questions
How do I choose between the best solar installers in Southern California?
Start by verifying the installer’s California contractor license through the CSLB database. Then check for NABCEP certification and manufacturer designations like Owens Corning Platinum Preferred. Read verified customer reviews and ask whether the company uses in-house crews or subcontractors. A company that handles both roofing and solar reduces coordination risk and simplifies warranty coverage.
How long does a residential solar installation take in Southern California?
Most installations take one to three days once permits are approved. The permitting process itself can add several weeks depending on your local jurisdiction. August Roofing and Solar manages the full permitting and inspection process on behalf of homeowners.
What is the federal solar tax credit for California homeowners in 2026?
The federal Clean Electricity Investment Tax Credit allows qualifying homeowners to deduct 30% of their solar system cost from federal taxes. This applies to both solar panels and battery storage systems installed alongside them. Credit amounts depend on your specific system configuration, so discuss the details with your installer and a tax professional.
Why does roofing expertise matter when choosing the best solar installers?
Solar panels are mounted directly to your roof structure through penetrations in the roofing membrane. If the installer does not understand flashing, underlayment, and structural load distribution, you risk leaks and damage that may not appear for months or years. A company with roofing expertise protects your roof’s integrity throughout the solar installation process.
Can I bundle a roof replacement with solar installation to save money?
Yes, and it is often the most cost-effective approach. Completing both projects at once saves you from paying for two separate mobilizations and avoids the expense of removing panels later for a roof replacement. August Roofing and Solar’s SolaRoof program is designed for homeowners who need both services under one contract.
Ready to see what your roof and solar options look like? Schedule a free evaluation with August Roofing and Solar, or call (805) 519-8099 to speak with a team member who can walk you through the process.