SunPower - Best Overall
SunPower's Maxeon panels deliver up to 22.8% efficiency, which is among the highest available for residential use. The company backs every system with a 25-year "Complete Confidence" warranty covering panels, inverters, and labor -- meaning one call handles any issue for two and a half decades. SunPower operates through a certified dealer network rather than direct crews, so installation quality depends somewhat on your local partner. That said, the vetting process is strict, and customer satisfaction scores remain consistently high. The premium price is real, but you get the best power-per-square-foot ratio on the market, which matters if your roof space is limited.
Check price on Amazon →Find the best company to buy solar panels from in 2026. We compare pricing, warranties, efficiency ratings, and customer support across top solar providers.
Switching to solar is one of the highest-impact home upgrades you can make in 2026. With panel efficiency climbing and installation costs falling, the main challenge is no longer the technology — it’s choosing the right company to handle the purchase, installation, and long-term service. This guide breaks down the five providers worth your money. | Company | Best For | Rating |
| — | — | — |
| SunPower | Premium efficiency | 4.9/5 |
| Sunrun | No upfront cost | 4.7/5 |
| Tesla Energy | Tech-forward buyers | 4.6/5 |
| ADT Solar | Value-focused buyers | 4.5/5 |
| Momentum Solar | Regional flexibility | 4.4/5 |
How we evaluated these
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
The shortlist
| Pick | Best for | Score | |
|---|---|---|---|
| SunPower - Best Overall | Check price | ||
| Sunrun - Best for Zero Upfront Cost | Check price | ||
| Tesla Energy - Best for Smart Home Integration | Check price | ||
| ADT Solar - Best Value with Strong Warranty | Check price | ||
| Momentum Solar - Best Regional Installer | Check price |
Each pick, examined
SunPower - Best Overall
SunPower's Maxeon panels deliver up to 22.8% efficiency, which is among the highest available for residential use. The company backs every system with a 25-year "Complete Confidence" warranty covering panels, inverters, and labor -- meaning one call handles any issue for two and a half decades. SunPower operates through a certified dealer network rather than direct crews, so installation quality depends somewhat on your local partner. That said, the vetting process is strict, and customer satisfaction scores remain consistently high. The premium price is real, but you get the best power-per-square-foot ratio on the market, which matters if your roof space is limited.
Sunrun - Best for Zero Upfront Cost
Sunrun is the largest residential solar installer in the United States and specializes in lease and power purchase agreement (PPA) models. You pay nothing upfront and simply pay a fixed monthly rate for the electricity generated -- often lower than your current utility bill. Ownership transfers to you at the end of the term or you can buy out the system at a discounted price. If you prefer to own from day one, Sunrun also offers traditional purchase financing. Customer support is responsive, and the monitoring app gives real-time production data. The main trade-off: you won't capture the full federal tax credit under a lease arrangement.
Tesla Energy - Best for Smart Home Integration
Tesla's solar roof tiles and conventional panel products integrate seamlessly with the Powerwall battery and the broader Tesla app ecosystem. If you already own a Tesla vehicle or plan to add home battery storage, the integration is genuinely convenient -- charge scheduling, grid export control, and energy monitoring all live in a single app. Pricing is competitive, and Tesla runs a fully direct installation model, so there are no third-party crews. The drawback is customer service responsiveness; some buyers report long waits for post-install support. Panel efficiency sits around 19.8%, which is solid but trails SunPower.
ADT Solar - Best Value with Strong Warranty
ADT Solar (formerly Sunpro Solar) brings the ADT brand's customer service infrastructure to residential solar. Systems use Tier 1 panels from manufacturers like LG and REC, and the company offers a lifetime workmanship warranty alongside the standard 25-year equipment coverage. Pricing is generally 10-15% below the national average for comparable equipment, making it a strong value pick. ADT Solar operates in over 20 states, so availability may vary. Financing options are flexible, including solar loans with competitive APRs. The monitoring portal is functional but not as polished as Tesla or SunPower's apps.
Momentum Solar - Best Regional Installer
Momentum Solar covers the Southeast, Southwest, and Mid-Atlantic regions and has built a reputation for fast installation timelines -- often completing projects within four to six weeks of contract signing, compared to the industry average of two to three months. Panel efficiency is respectable at 19-20%, using modules from Hanwha Q CELLS and similar Tier 1 brands. The company provides a 25-year production guarantee and handles all permitting in-house. If you are in a covered state, Momentum is worth getting a quote from, especially for competitive pricing on standard roof configurations.
Buying considerations
What to consider
Start with three quotes minimum -- solar pricing varies by 20-30% between installers in the same market. Verify that your installer is NABCEP-certified and that the equipment uses Tier 1-rated panels from manufacturers with a 10-plus-year track record. Check the warranty structure carefully: panel warranties, inverter warranties, and workmanship warranties are separate documents. A "25-year warranty" that only covers panels but not labor is not the same as a true comprehensive warranty. Also confirm who performs the installation -- some national brands subcontract to local crews with inconsistent quality. Finally, model your payback period using your actual utility rate and local sun hours before signing anything.
What to consider
Solar is a long-term investment, so the company's financial stability matters as much as the panel specs. For more on home energy upgrades, see our guide to [best compact air purifiers](/articles/best-compact-air-purifier) for indoor air quality and our [best compact battery charger](/articles/best-compact-battery-charger) roundup for backup power essentials. You can also review how we evaluate products at [/methodology](/methodology).
Questions answered
SunPower consistently ranks at the top for residential solar due to its Maxeon cell technology, 25-year comprehensive warranty, and strong installer network. Sunrun is a strong pick if you prefer a lease or power purchase agreement with no upfront cost. The best choice depends on your budget, roof type, and whether you want to own or lease your system.
A typical residential system (6-10 kW) costs between and before the federal tax credit, which covers 30% through 2032. After incentives, most homeowners pay to. Leasing options through Sunrun or Tesla Energy can reduce upfront costs to near zero, though you won't own the panels.
