Independent comparison of the top solar installers in Arizona and California for 2026. We reviewed pricing, warranties, financing options, installation quality, and what homeowners actually report after installation.
| # | Company | Aragon Solar ★ | SunPower | Sunrun | Tesla Solar | ADT Solar |
|---|---|---|---|---|---|---|
| Panel Tier | Tier 1 only | Maxeon (own) | Varies | Tesla/3rd party | Tier 1/2 mix | |
| Own Install Crew | ✓ Always | ✓ Usually | ✗ Subcontracted | ✗ Subcontracted | ✗ Subcontracted | |
| Warranty (panels) | 25 yr | 25 yr | 10–25 yr | 25 yr | 25 yr | |
| Workmanship Warr. | 10 yr | 10 yr | 10 yr | 10 yr | 10 yr | |
| Battery Options | Powerwall + Enphase | SunVault | Varies | Powerwall only | Limited | |
| Leases/PPAs | ✗ Loans only | ✓ | ✓ | ✓ | ✓ | |
| $0 Down Loan | ✓ | ✓ | Limited | ✓ | Limited | |
| Avg Rating | 4.9/5 | 4.6/5 | 3.9/5 | 3.8/5 | 3.5/5 | |
| Price (relative) | Mid-premium | Premium | Mid | Budget-mid | Mid | |
| Available in AZ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Available in CA | ✓ | ✓ | ✓ | ✓ | ✓ |
*Data based on company websites, public reviews, and homeowner reports as of 2026. Some ratings are approximate averages across platforms.
The only major Southwest installer that uses exclusively in-house crews and refuses to offer solar leases. Tier-1 panels, 25-year performance warranty, and 10-year workmanship. Highest-rated in AZ and CA combined.
The gold standard for panel efficiency. SunPower's Maxeon cells consistently outperform standard monocrystalline. Premium price, premium product. Installation quality varies by market since some work is subcontracted.
Streamlined online purchase process and best-in-class Powerwall integration. Tesla's solar panels and roof tiles offer excellent aesthetics and tight app integration. Installation is subcontracted and support quality is inconsistent.
The nation's largest residential solar company by volume. Sunrun's scale gives them competitive pricing but their lease/PPA-heavy model means most customers don't own their systems. Subcontracted installation is the norm.
Palmetto has differentiated with a strong monitoring and ongoing service platform. Their LifePlan subscription model is unique. Installation is subcontracted through a dealer network.
Companies ranked #6–10 (Momentum Solar, Blue Raven, Elevation Solar, ION Solar, Sunnova) are available in some Southwest markets but have lower average review scores and/or more limited AZ/CA service coverage. Contact us for a full comparison specific to your area.
The single biggest predictor of installation quality is whether the company uses their own crew or subcontracts. Always ask directly: "Is the crew that will install my system employed by you?"
Solar leases lock you in for 20 years, transfer complicated, and give your tax credits to the company. Only consider purchase (cash or loan) unless you truly cannot qualify for a loan.
A "25-year warranty" means nothing if the company goes out of business. Ask how long they've been operating. Ask if the warranty is backed by the manufacturer or just the installer.
We'll match or beat any written competitor quote on equivalent equipment. Get your free Aragon Solar analysis and compare side by side — no pressure, no obligation.
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