8 Best Solar Panel Installers of 2026

1. 1

   Sunrun

   The largest US home solar and battery company by customer count, selling mainly through a no-upfront-cost subscription plan.

   9.0overall

   The largest US home solar and battery company by customer count, selling mainly through a no-upfront-cost subscription plan.

   Best forHomeowners who want solar with little or nothing down and want the installer to own, monitor and repair the system.

   Adoption data

   1,057,695Sunrun reported 1,057,695 subscribers as of September 30, 2026, up 9% from a year earlier.

   Sunrun Inc., Sunrun third quarter 2026 financial results (Form 8-K exhibit 99.1) (2026): “As of September 30, 2026, Sunrun had 1,057,695 Subscribers.”

   Sunrun is the default shortlist entry for most US homeowners because nobody else documents a customer base this large: its third quarter 2026 results list 1,057,695 subscribers, up 9% in a year. Its main product is the Sunrun Subscription Plan, a lease that starts from as little as $0 down and locks in a monthly payment. On that plan Sunrun owns and maintains the system, promises 25 years of free maintenance and repairs, monitors it around the clock and guarantees at least 90% of estimated production, paying the difference if output falls short. Homeowners who prefer to own can buy outright and get a 10-year workmanship guarantee and a 5-year roof penetration warranty instead. The limits are worth reading closely. The maintenance and production guarantee are not offered in Florida, Illinois coverage depends on contract terms, and on a lease Sunrun, not you, owns the hardware. Pricing is quote-only, so get competing bids before you sign.

   Strengths

   • +Largest documented customer base of any US home solar company
   • +Subscription plans cover parts and labor for repairs
   • +Plan transfers to a new owner if you sell the home

   Limitations

   • −Free maintenance and production guarantee are not available in Florida
   • −With a lease you do not own the system
   • −Prices are only available through a personal quote

   SummaryThe safest pick for homeowners who want solar with little upfront cost and long service coverage. Compare its lease payment with a cash or loan quote from a local installer before deciding.

2. 2

   Tesla Solar

   Tesla's home solar business, selling its own solar panels and Solar Roof paired with Powerwall batteries.

   8.6overall

   Tesla's home solar business, selling its own solar panels and Solar Roof paired with Powerwall batteries.

   Best forHomeowners who want panels, roof tiles and battery storage from one manufacturer.

   Adoption data

   46.7 GWhTesla deployed 46.7 GWh of energy storage products in 2025, a figure that covers Powerwall and its larger Megapack batteries; Tesla does not report residential solar installs separately.

   Tesla, Inc., Tesla Form 10-K for fiscal year 2025 (2025): “In 2025, we deployed 46.7 GWh of energy storage products.”

   Tesla is the best known name in home energy and the only company here that makes the panel, the roof and the battery itself. Its 2025 annual report says it began manufacturing a new residential retrofit solar panel in 2025 and started customer deliveries in January 2026, alongside Solar Roof, which builds power generation into glass roof tiles. Both pair with Powerwall, and the same filing reports 46.7 GWh of energy storage deployed in 2025 across Powerwall and Megapack. Tesla sells directly and through channel partners, and it gives retrofit systems separate limited warranties for workmanship and roof leaks. The weak spots are transparency and track record for the new panel. Tesla does not break out residential solar installs, so adoption here rests on its storage scale, and its US solar pricing page blocked our checker, so we could not confirm a current price. Ask for a full written quote and compare it with an installer that uses third-party panels.

   Strengths

   • +Panels, roof and battery come from one manufacturer
   • +Solar Roof is an option for homes that need a new roof
   • +Strong battery business behind the solar product

   Limitations

   • −Its US pricing page could not be checked from our location
   • −Tesla does not publish residential solar install counts
   • −The new retrofit panel only started deliveries in 2026

   SummaryA strong choice if you want a Powerwall and matching solar hardware from one brand, or a solar roof. Confirm the price in writing, since we could not verify it.

3. 3

   Trinity Solar

   A New Jersey solar and roofing installer that ranked first among US residential contractors on Solar Power World's 2026 list.

   8.5overall

   A New Jersey solar and roofing installer that ranked first among US residential contractors on Solar Power World's 2026 list.

   Best forHomeowners in the Northeast and Mid-Atlantic who want solar and a roof from the same crew.

   Adoption data

   137,529.72 kWTrinity Solar installed 137,529.72 kW of residential solar in 2025, the most of any company on Solar Power World's 2026 residential contractor list.

   Solar Power World, 2026 Top Residential Solar Contractors (2025): “1 Trinity Solar 45 New Jersey Installer Rooftop 137,529.72 137,529.72”

   Trinity Solar is the biggest residential installer that reports its numbers to Solar Power World. The trade publication's 2026 list ranks it first in the residential market with 137,529.72 kW installed in 2025, more than double the next company. Trinity says it has installed on more than 140,000 homes over 30 years. Its main draw is doing roofing and solar under one contract, which helps when an older roof would otherwise need to be replaced before panels go on. It covers the system with a 25-year warranty for maintenance, monitoring, repairs and replacements, assigns a Project Concierge to each job and says installs take 1 to 3 days. Payment is flexible: lease or PPA, a $0-down loan, or cash. Leases, PPAs and loans come from partner lenders, and Trinity says it does not push one option over another. The catch is geography, since it serves nine states from Ohio to Massachusetts. Pricing is by consultation only.

   Strengths

   • +Largest residential installer on Solar Power World's 2026 list
   • +Roofing and solar handled by one company
   • +Trinity says it does not push one payment option over another

   Limitations

   • −Serves nine states, mostly in the Northeast
   • −Leases and loans come from third parties, not Trinity
   • −No published prices

   SummaryThe top choice for Northeast homeowners, especially if the roof needs work too. Outside its nine states, look at a national provider.

4. 4

   ION Solar

   A Utah-based residential installer operating in a dozen states, ranked second on Solar Power World's 2026 residential list.

   8.3overall

   A Utah-based residential installer operating in a dozen states, ranked second on Solar Power World's 2026 residential list.

   Best forHomeowners in the Mountain West, Midwest and East Coast states ION serves who want no upfront cost.

   Adoption data

   56,430.60 kWION Solar installed 56,430.60 kW of residential solar in 2025, second on Solar Power World's 2026 residential contractor list.

   Solar Power World, 2026 Top Residential Solar Contractors (2025): “2 ION Solar 70 Utah Installer Rooftop 56,430.60 56,430.60”

   ION Solar is a less familiar name with real scale. Solar Power World's 2026 residential list places it second, with 56,430.60 kW installed in 2025, and ION says it has completed more than 85,000 installs since it started in 2013. It sells in a dozen states, from Oregon and Nevada to Virginia and Massachusetts. ION handles financing, design, permits and installation, and its FAQ says there is no out-of-pocket cost to start, through third-party ownership and financing options. Systems use microinverters on each panel, and ION favors black-on-black panels arranged in clean rows, which matters to owners who care how the roof looks. Every customer gets an operations team and weekly check-ins. The trade-offs: its locations list does not include California, Texas or Florida, the 4.5-star rating comes from its own site, and it publishes no prices. Get its quote alongside one from a national company.

   Strengths

   • +Second largest residential installer on Solar Power World's 2026 list
   • +No out-of-pocket cost to start
   • +Weekly progress updates during the project

   Limitations

   • −Locations list omits California, Texas and Florida
   • −Prices only by quote
   • −Ratings figure comes from ION's own site

   SummaryA well-run option if you live in one of its 12 states and want no upfront cost. Confirm the financing terms, since the zero-cost start depends on the plan you sign.

5. 5

   Palmetto

   A clean energy company that sells solar through its Palmetto Energy Plan subscription (LightReach) and has local partners install it.

   8.2overall

   A clean energy company that sells solar through its Palmetto Energy Plan subscription (LightReach) and has local partners install it.

   Best forHomeowners who want to buy solar power on a subscription rather than own panels.

   Palmetto answers the question of who the best energy provider for solar is in the most literal way. With its Palmetto Energy Plan, sold under the LightReach name, Palmetto owns the system and you pay a monthly rate for the power, with no upfront cost and no maintenance to handle. Palmetto says these plans can cut monthly energy spend by up to 20%, carry a 90% performance guarantee and include 25 years of free maintenance. It is also unusually open about terms: its buy-solar page compares the subscription (25 years, no processing fees), cash (three upfront payments and a 2.9% processing fee) and loans (5 to 25 years at 3.99% to 11.99% APR). An online calculator gives an instant quote from your last bill. The trade-off is that Palmetto's advisors design the system and then connect you with local pros to install it, so crew quality depends on the partner. Palmetto does not publish a customer count, so we scored adoption conservatively.

   Strengths

   • +Energy Plan has no processing fees
   • +Clear published comparison of subscription, cash and loan terms
   • +Instant online quote from your energy bill and address

   Limitations

   • −Installation is done by local partner companies
   • −Palmetto does not publish a customer count
   • −Not available in every state

   SummaryThe best fit for homeowners who want solar power on a subscription with clear terms. Ask who the local installer will be before you sign.

6. 6

   Solar Energy World

   A Maryland installer founded in 2009 that ranked fourth among US residential contractors in 2026 and does all work in house.

   8.2overall

   A Maryland installer founded in 2009 that ranked fourth among US residential contractors in 2026 and does all work in house.

   Best forMid-Atlantic and Florida homeowners who want an in-house crew and a long warranty.

   Adoption data

   40,955.28 kWSolar Energy World installed 40,955.28 kW of residential solar in 2025, fourth on Solar Power World's 2026 residential contractor list.

   Solar Power World, 2026 Top Residential Solar Contractors (2025): “4 Solar Energy World 89 Maryland Installer Rooftop 40,955.28 40,955.28”

   Solar Energy World is a Maryland installer that has grown into one of the largest in the country: Solar Power World's 2026 residential list ranks it fourth, with 40,955.28 kW installed in 2025, and the company cites more than 30,000 customers and 700,000 panels installed. It serves Maryland, DC, Delaware, Pennsylvania, Florida, New Jersey and Virginia, and it says its operation is 100% in house, so the same company sells, installs and services the system. Its Zero-Down Solar Lease asks $0 upfront for panels and installation, and the newer Savings+ lease offers a 25-year or 5-year rate lock with full maintenance and the right to prepay or buy out early at prices set on day one. Owners can also buy with financing. The 30-year warranty is the longest we found in this ranking. Coverage is the limit: outside its seven states and DC you will need another installer, and whether you can lease depends on your state.

   Strengths

   • +All work done by its own staff
   • +30-year warranty is the longest listed here
   • +Lease includes early buyout pricing set on day one

   Limitations

   • −Serves seven states and DC
   • −Leasing and ownership options vary by state
   • −No published prices

   SummaryA strong regional pick with an in-house crew and a 30-year warranty. The Savings+ buyout terms make its lease easier to exit than most.

7. 7

   SunPower

   The former Complete Solaria, which bought the SunPower brand and Blue Raven Solar in 2024 and now installs under the SunPower name.

   8.0overall

   The former Complete Solaria, which bought the SunPower brand and Blue Raven Solar in 2024 and now installs under the SunPower name.

   Best forHomeowners who want a high-efficiency panel from a public company that installs nationwide.

   SunPower today is not the company that went bankrupt in 2024. Complete Solar bought the brand, the Blue Raven Solar installer and other assets that year, and Complete Solaria later renamed itself SunPower Inc. Its headline product is the Monolith panel, which SunPower says uses heterojunction cells, fades about 0.25% a year and holds about 96% of rated power at 140°F. Batteries come from Enphase. Payment options include cash, $0-down loans through lending partners, and leases or PPAs where your state allows them. The warranty package is weaker than the leaders: installation quality is guaranteed for ten years, but hands-on service coverage lasts two years, after which you pay any manufacturer claim fees. Its quarterly filing also shows residential installation revenue falling in 2026 on lower volumes. SunPower does not publish a customer count, so we scored adoption conservatively. It is a fair option where Blue Raven used to operate, but compare warranties carefully.

   Strengths

   • +Monolith panel holds about 96% of rated power at 140°F, per SunPower
   • +Includes the former Blue Raven Solar installation business
   • +Public company with SEC filings you can read

   Limitations

   • −Residential installation revenue fell in 2026, per its 10-Q
   • −Service coverage lasts only two years
   • −After two years, you pay manufacturer claim fees

   SummaryWorth a quote for its Monolith panel and national reach. Its two-year service window is short, so weigh it against installers that cover 25 years.

8. 8

   Freedom Forever

   A California-based residential installer that sells through independent authorized dealers and installs in more than 25 states.

   7.7overall

   A California-based residential installer that sells through independent authorized dealers and installs in more than 25 states.

   Best forHomeowners outside the big regional installers' footprints who want a production guarantee.

   Freedom Forever is one of the broadest-reaching installers in the country. Its state page lists active installation in 27 states plus Puerto Rico, from Washington and California to Maine and Florida, with more marked as coming soon. Its main promise is a 25-year production guarantee: if the system produces less than Freedom Forever said it would, you get a check for the difference, on top of the equipment warranties. Systems are monitored around the clock once they are on, and customers can choose equipment from Qcells, Trina Solar, SolarEdge, Tesla and Enphase. The Aura financing plan offers monthly payments with an option to take ownership later. The weak point is the sales model. Freedom Forever sells through a network of Independent Authorized Dealers, so the person quoting you is often not a Freedom Forever employee, and the company publishes no customer or install counts. We scored adoption conservatively for that reason. Ask who your dealer is and get the guarantee terms in writing.

   Strengths

   • +Widest state coverage of any installer here
   • +Production guarantee on top of equipment warranties
   • +Choice of several panel and battery brands

   Limitations

   • −Sales run through independent dealers, so experience varies
   • −No published install or customer counts
   • −No published prices

   SummaryA reasonable option where few large installers operate, with a solid production guarantee. Vet the dealer as carefully as the installer.

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