Best Solar Companies 2026

Choosing the wrong solar company is a mistake that can follow you for 25 years.

The solar industry is not like hiring a plumber or a painter. The company you choose today will determine whether your system performs as promised next year — and whether someone actually picks up the phone in year 12 when you have a question about your inverter.

There are more than 5,000 solar installation companies operating in the United States in 2026. Most are legitimate. Some are outstanding. A few are predatory.

This ranking cuts through the noise. We evaluated the largest and most widely available solar companies based on four objective criteria: installed price per watt, warranty terms, verified customer reviews, and financial stability.

Here is what we found.

How We Ranked the Best Solar Companies of 2026

Before getting into the rankings, it is worth explaining exactly what we measured and why.

Price per watt: We used national average data from EnergySage’s 2025-2026 Solar Marketplace Report combined with regional installer pricing from NREL. National companies often charge a premium over local installers, and we flag this where it is significant.

Warranty terms: We evaluated three separate warranties — the panel product warranty (covers defects), the panel performance warranty (guarantees output levels), and the workmanship warranty (covers installation quality). These are not the same, and the differences matter enormously.

Customer reviews: We aggregated verified reviews from Google, Yelp, Trustpilot, and the Better Business Bureau. We specifically weighted reviews that mentioned the post-installation experience, not just the sales process.

Financial stability: A solar company that goes out of business cannot honor its 25-year warranty. We assessed each company’s operational history, funding, and business model stability.

The Top Solar Companies in 2026: Overview

Here is a side-by-side comparison of the major national solar companies available to most American homeowners in 2026:

Note: Prices reflect 2026 market averages. Your quote may vary based on location, system size, and roof type.

SunPower: Best Overall for Premium Buyers

SunPower has been the benchmark for residential solar quality since the company was founded in 1985. Their panels consistently rank among the most efficient available to homeowners — their flagship Maxeon line reaches efficiencies above 22%, which is exceptional in the residential market.

What makes SunPower stand out:

SunPower’s most compelling differentiator is their all-in-one warranty. For 25 years, they cover the panels, the inverter, the mounting hardware, and the labor. That is industry-leading, and it matters because most warranty problems occur 10 to 15 years after installation — long after some companies have changed hands or gone out of business.

SunPower uses its own in-house installation teams in some markets and certified dealer networks in others. Quality control is generally high, but it varies by region.

The honest downside:

SunPower is the most expensive national installer in almost every market. Quotes typically run $3.60 to $4.20 per watt, which on a 10 kW system means $36,000 to $42,000 before credits. That is 20% to 30% higher than many competitors.

For buyers who plan to stay in their home for 20+ years and want the absolute minimum risk of performance or service issues, the premium may be justified. For buyers who are price-sensitive or willing to manage some risk, there are better-value options.

Customer review highlights:

• Consistent praise for panel performance and monitoring app
• Complaints sometimes center on long wait times for service callbacks
• Very few reports of panels underperforming production estimates

SunPower rating: 4.8/5

Sunrun: Best for Flexible Financing and Lease Options

Sunrun is the largest residential solar company in the United States by number of installations. That scale gives them access to financing products, installer networks, and partnerships that smaller companies cannot match.

What makes Sunrun stand out:

Sunrun’s strength is financial flexibility. They offer more financing structures than any other national installer — including their BrightSave lease, BrightSave monthly PPA, BrightBuy cash purchase, and BrightAdvantage loan. They also have a strong battery storage offering through their partnership with LG Energy Solution and their own Sunrun BrightBox product.

For homeowners who want solar with minimal upfront cost and are not focused on tax credits, Sunrun’s lease products can be a straightforward path to immediate bill savings.

For homeowners who do want to own their system and capture the 30% federal tax credit, Sunrun’s loan and cash products are competitive.

The honest downside:

Sunrun’s national scale means you are not always getting a local specialist. Customer service experiences are inconsistent across regions, and some customers report difficulty reaching knowledgeable representatives after installation. Their workmanship warranty is 10 years — meaningful but shorter than SunPower’s 25-year coverage.

Customer review highlights:

• Strong praise for the ease of the installation process
• Mixed reviews on customer service responsiveness post-installation
• Generally positive reports on electricity bill savings performance

Sunrun rating: 4.3/5

Tesla Solar: Best for Price-Focused Buyers

Tesla’s solar division — built on the acquisition of SolarCity — is consistently one of the most aggressively priced national installers. Their online-first model, standardized installation process, and massive supply chain give them a structural cost advantage.

What makes Tesla Solar stand out:

Tesla’s pricing is genuinely lower than most national competitors. Quotes in the $2.50 to $3.20 per watt range are typical for their standard offerings. The Tesla app and energy ecosystem — particularly if you also have a Powerwall 3 or a Tesla vehicle — are well-integrated and genuinely useful.

For buyers who prioritize getting the most solar capacity for the lowest installed cost, and who are comfortable with a more self-service ownership experience, Tesla delivers real value.

The honest downside:

Tesla Solar’s customer service record is the most polarizing of any company on this list. Positive reviews highlight smooth, professional installations. Negative reviews — which are not rare — describe difficulty reaching anyone after installation, long wait times for service, and limited local presence in some markets.

Their sales process is entirely online, which works well for buyers who prefer researching and deciding independently. It works poorly for buyers who want to ask questions and build a relationship with a local salesperson before signing.

Customer review highlights:

• Price is consistently praised as the strongest selling point
• Post-installation service complaints appear more frequently than competitors
• Powerwall integration is highly rated by battery buyers

Tesla Solar rating: 3.9/5

ADT Solar: Best Warranty Value

ADT Solar — the solar division of the ADT security brand — offers one of the strongest warranty packages available from a national installer.

What makes ADT Solar stand out:

ADT’s workmanship warranty is 25 years — matching SunPower and far exceeding the 10-year coverage most competitors offer. For homeowners who have seen what can happen when a solar company goes under and cannot honor its installation warranty, this is meaningful.

ADT’s parent company provides financial stability that many pure-play solar companies cannot claim. You are not betting your 25-year warranty on a startup’s continued existence.

Pricing is moderate — typically $2.80 to $3.50 per watt — placing ADT comfortably between Tesla’s low end and SunPower’s premium range.

The honest downside:

ADT Solar operates in fewer markets than SunPower, Sunrun, or Tesla. Availability varies significantly by state. Their installation volume is lower, meaning individual crews may have less collective experience than teams at higher-volume installers.

Customer review highlights:

• Warranty length is the most frequently cited positive factor
• Sales process described as low-pressure and informative
• Service response times are above average compared to national competitors

ADT Solar rating: 4.1/5

Blue Raven Solar: Best Customer Service Experience

Blue Raven Solar was acquired by SunPower’s dealer network and operates primarily in the central and western United States. They have built a strong reputation specifically for customer service quality.

What makes Blue Raven stand out:

In markets where Blue Raven operates, they consistently earn the highest customer service scores among national competitors. Their sales process is consultative rather than high-pressure, and their installation timelines are among the most reliable in the industry.

Their pricing — typically $2.70 to $3.40 per watt — is competitive without being the cheapest option available.

The honest downside:

Geographic availability is limited. Blue Raven does not operate in all states, and their service quality can vary between markets. Check availability in your specific area before investing time in the quote process.

Blue Raven rating: 4.4/5

Why Local Solar Installers Often Beat the National Names

Here is a fact that does not get enough attention in solar content: local and regional solar installers frequently outperform national brands on both price and customer satisfaction.

The EnergySage Solar Marketplace consistently shows that local installers quote 10% to 15% lower prices than national companies on comparable systems. And because local companies depend on community reputation to generate referrals, they tend to invest more in post-installation service quality.

The main risks with local installers are:

• Longevity: Will they be in business in year 12 when you need warranty service?
• Consistency: Quality varies significantly from one company to the next
• Financing options: Local installers may have fewer financing products available

The solution is straightforward: vet local installers carefully. Check how long they have been in business. Read reviews specifically about post-installation service, not just sales. Ask who services their installations if the company were to close.

Many experienced solar buyers ultimately choose a well-reviewed local installer with strong references over a national brand — and pay thousands less for equivalent or better quality.

Red Flags That Eliminate a Solar Company Immediately

Knowing what to run away from is as important as knowing what to seek out.

Do not work with any installer that:

• Requires you to sign the same day with a “today only” discount. Legitimate companies do not pressure you. This tactic is specifically designed to prevent you from getting competing quotes.
• Cannot provide a copy of their contractor’s license upon request. Every solar installer must be licensed by the state. Verify the license number with your state licensing board.
• Cannot tell you who manufactures the panels. Vague answers like “premium panels” or “Tier 1 equipment” without specific brand names are a warning sign.
• Gives you a verbal quote without a written breakdown. Every cost, every component, and every warranty should be in writing before you sign anything.
• Has unresolved Better Business Bureau complaints involving unfinished installations, warranty denials, or billing disputes.
• Offers a deal that seems too low to be real. A quote of $1.80 per watt from a company you cannot verify means something is wrong — with the equipment, the warranty, or the installation quality.

What to Ask Every Solar Company Before You Sign

These seven questions give you the information you need to compare companies fairly:

1. What is the total installed cost, itemized by component?
2. What panel brand and model are you installing, and what is the efficiency rating?
3. What inverter type are you installing, and what is the warranty?
4. What is your workmanship warranty, and who backs it if your company closes?
5. How long has your company been installing solar in this area?
6. Can you provide three local references with contact information?
7. What is your estimated timeline from signed contract to system going live?

A company that answers all seven questions confidently and in writing is a company worth considering. A company that deflects, generalizes, or pressures you past these questions is not.

The Smart Way to Compare Solar Quotes in 2026

Getting quotes from multiple companies is not optional — it is the most important financial step in the entire solar process.

But the traditional approach — calling five companies individually, sitting through five separate sales presentations, and trying to compare five different quote formats — is exhausting and inefficient.

The better approach is to use a quote aggregation platform that sends your information to multiple licensed installers simultaneously and delivers standardized quotes you can actually compare side by side.

EnergySage is the leading platform for this in 2026. Homeowners who use it receive an average of 3 to 7 quotes within days of submitting their information. The platform requires all quotes to include consistent data points, which makes comparison straightforward.

[LINK: EnergySage – compare solar quotes]

The average homeowner who uses a multi-quote platform saves $5,000 to $10,000 compared to accepting the first quote received. On a $25,000 system, that is a 20% to 40% savings — before any tax credits.

Solar Company Comparison: Final Rankings

Overall score weighs price (25%), warranty (25%), customer service (30%), and financial stability (20%).

Our Recommendation: The Two-Track Approach

After analyzing all the data, here is the strategy most homeowners should follow in 2026:

Track 1 — Start with a quote comparison platform.
Submit your information to EnergySage or a similar service and collect quotes from both national companies and local installers in your area. Do this first, before you commit to any company or any conversation.

Track 2 — Evaluate the quotes you receive.
Use the criteria in this article to compare the quotes. Look beyond the bottom-line number. Evaluate cost per watt, panel brand, inverter type, and warranty terms side by side.

If a national company like SunPower or ADT Solar quotes you competitively and earns strong local reviews, they may be the right choice. If a local installer comes in significantly cheaper with excellent references, they may be the better call.

The right answer depends on your specific market, your roof, and your priorities. The right process is always the same: get multiple quotes, ask the right questions, and never sign under pressure.

Frequently Asked Questions

P: What is the best solar company in the United States in 2026?
R: SunPower leads for premium quality and warranty coverage. For value and customer service, Blue Raven Solar and ADT Solar are strong alternatives. Local installers often offer better pricing with comparable quality — always compare at least three quotes before deciding.

P: How do I verify if a solar company is legitimate?
R: Verify their contractor’s license with your state licensing board, check their Better Business Bureau rating, read reviews on Google and Trustpilot, and ask for local references. Any company that cannot or will not provide these items should be crossed off your list immediately.

P: Is it better to go with a national solar company or a local installer?
R: Both can be excellent. National companies offer brand recognition, structured warranty backing, and financing options. Local installers often offer better pricing and more personalized service. The key is vetting the specific company — not just the category.

P: What solar panel brands should I look for in 2026?
R: Tier 1 panel manufacturers with strong track records include REC Group, Panasonic, SunPower (Maxeon), Qcells, Canadian Solar, and Jinko Solar. Ask your installer specifically which brand and model number they are proposing, then research it independently.

P: How many quotes should I get before choosing a solar company?
R: A minimum of three quotes is strongly recommended. Getting five or more is even better if you have the time. Homeowners who get multiple quotes consistently save thousands of dollars compared to those who accept the first offer.

P: Does the solar company’s warranty really matter?
R: Absolutely. The distinction between a 10-year and 25-year workmanship warranty is enormous. A roof penetration leak, an improperly wired connection, or a mounting failure that appears in year 14 is covered under a 25-year workmanship warranty and not under a 10-year one. Always compare warranty terms alongside price.

P: What happens to my warranty if the solar company goes out of business?
R: For panel warranties, the panel manufacturer is the ultimate backstop — which is why buying Tier 1 panels from financially stable manufacturers matters. For workmanship warranties backed only by the installer, a company closure can leave you without coverage. Ask your installer how workmanship warranty claims are handled if the business is sold or closes.