How to start a solar installation business homeowners trust

Solar installation is part electrical contracting, part roofing and part paperwork. A few days of roof work can sit inside weeks or months between signature and power on, because design, permits, inspections and the utility all have a say. Homeowners are also wary, and the FTC's consumer advice on solar tells them never to deal with a company that pressures them for a quick decision or asks them to sign without time to review. A company that does careful work, explains the process honestly and keeps customers informed has room to grow. Here we go through the work, licensing, codes and safety, insurance, gear, pricing, early sales and the calendar.

This guide is general information, not legal, tax, financial or insurance advice. We deliberately say nothing here about tax credits, rebates or incentives; they change often, so check primary government sources directly. Licensing and permitting vary by state, county, city and utility.

What does a solar installation company do?

Most small solar companies do some mix of:

• Residential rooftop systems: site assessment, design, permitting, racking and module installation, inverter and electrical work, inspection and utility interconnection.
• Battery storage: standalone or paired with solar, with its own equipment and code requirements.
• Ground mounts: for rural properties and homes with poor roof orientation, adding trenching and foundation work.
• Service and repair: troubleshooting systems other companies installed, inverter replacements, monitoring problems, and removing and reinstalling panels when a roof is replaced.
• Light commercial: small businesses, farms and multifamily buildings.

Some companies sell and subcontract the installation; others install for sales companies; others do both. Decide early, because your licensing, insurance and reputation depend on who does the work and who owns the customer. Service and repair can be a practical place to start while you build a crew, since it uses the same skills on smaller, faster jobs.

What licenses does a solar installer need?

There is no single solar license that applies nationwide. The SBA's licensing guide says which state, county and city licenses apply depends on what your business does and where it operates. For solar, expect to sort out:

• Electrical licensing. The wiring side of a solar system is electrical work. In many places that means a licensed electrician must do or supervise it, and an electrical contractor license may be needed for the company. Ask your state electrical board how it treats solar wiring.
• Contractor licensing. A general, roofing or specialty contractor license may cover the racking, roof penetrations and structural attachment.
• Solar-specific licenses in states that have created them. California, for example, has a C-46 Solar Contractor classification for contractors who install, modify, maintain and repair thermal and photovoltaic solar energy systems.
• Home improvement or home solicitation registration for companies that sell to homeowners, in states that require it.
• Local permits for building and electrical work on every job, plus inspection sign-off.

NABCEP offers private credentials such as the PV Installation Professional board certification and associate programs. They show training and experience to customers and partners, but they are separate from whatever license your state or city requires. Check our state guides for the agencies involved, then read your state electrical and contractor boards' rules on solar directly.

Which codes and safety rules apply to solar work?

Electrical code. The National Electrical Code (NFPA 70) includes requirements for solar photovoltaic systems and for energy storage systems. NFPA publishes a new edition on a three-year cycle and notes that many states may enforce an older one, while some cities adopt their own locally amended version. Ask your building department which edition applies and design to it.

Fall protection. Rooftop solar is roof work. OSHA's 29 CFR 1926.501 uses 6 feet above a lower level as the threshold for employees on residential construction, who must then be protected by guardrails, safety nets or personal fall arrest systems unless another provision of the rule allows an alternative. Steep and low-slope roofs have their own provisions. Plan anchors, harnesses and training into every job, and price them in.

Utility interconnection. Your local utility decides how a system connects to the grid: applications, equipment requirements, meter changes and permission to operate. Each utility runs its own process. Learn the ones in your service area before you sell, because their timelines become your timelines.

Roof condition. A system on a roof that needs replacement in a few years means paying to remove and reinstall it later. Inspect roofs before you design, and partner with a roofer for jobs that need one first. Our roofing startup guide covers that trade.

What insurance does a solar company need?

• General liability with completed operations, for roof leaks around penetrations, electrical faults and property damage that may surface after the job.
• Workers' compensation for crews, which the SBA lists as required for businesses with employees. The SBA adds that insurance laws differ from state to state; check yours, and ask your agent how roof work is classified.
• Commercial auto for trucks and trailers hauling modules and racking.
• Equipment and inland marine coverage for inventory and tools in transit or stored on job sites.
• Bonds where your state or locality requires them for licensing, and performance bonds on some commercial work.

Workmanship warranties you offer are promises you must keep for years. Make sure your insurance, your reserves and your contracts line up with them. Certificates and endorsements are explained in our contractor insurance guide.

What equipment and vehicles do solar installers need?

• A truck and an enclosed or flatbed trailer sized for modules, racking and inverters.
• Ladders, a ladder hoist or material lift for getting modules onto the roof.
• Fall protection: roof anchors, harnesses, lifelines and rope grabs.
• Cordless drills and impact drivers, torque wrenches set to manufacturer specifications, and roof flashing tools.
• Electrical test equipment: multimeter, clamp meter, insulation tester, and a solar-specific meter or I-V curve tracer as you grow.
• Site assessment tools: shade analysis app or device, measuring tools, a camera, and design software.

Distributors carry modules, inverters and racking, and some offer training on the equipment they sell. Choose a short list of components you know well, so your crews install them the same way every time and your service work stays predictable.

How do solar installers price systems?

Installers commonly quote both a total price and a price per watt of installed capacity, which lets buyers compare proposals of different sizes. Whatever you quote, break it into lines the homeowner can follow:

Build your prices from real costs: equipment, labor hours, engineering, permits, the time your office spends on paperwork, warranty reserves, overhead and profit. Our pricing guide explains the method. Price service and repair visits separately, with a diagnostic fee and flat rates for common tasks.

Keep your proposals plain. Show production estimates with the assumptions behind them, avoid promising savings or payback, and send customers to their utility and to primary government sources for anything about rates or incentives. If you sell in the customer's living room, the FTC's Cooling-Off Rule typically reaches any sale of $25 or more that you close in the buyer's home. Under 16 CFR 429.1, the buyer has three business days to cancel (the deadline is midnight of the third), and you must explain that right orally at signing and provide a written notice of cancellation. Some states add their own home solicitation rules. None of this is legal advice; a local attorney should review your contract.

How do you get your first solar customers?

If you buy solar leads, ask whether each one is exclusive or shared, because a shared lead goes to more than one company and you are competing from the first minute. Buyers who become referral sources tend to arrive through trust instead: a neighbor's system, a roofer's recommendation, a website that answers their questions without pressure.

• A website that explains your process step by step: assessment, design, permits, installation, inspection and permission to operate, with realistic timelines and what the homeowner needs to do at each step. Add pages for battery storage, service and repair, and each area you serve. Our solar websites follow that plan.
• A Google Business Profile with photos of finished arrays, clean conduit runs and tidy equipment walls.
• Roofers and electricians who get asked about solar and want a partner they trust.
• Service customers. Some owners can no longer reach the company that installed their system. Fixing it earns trust and referrals.
• Past customers. Annual check-ins and monitoring alerts bring referrals and battery add-ons.

Between signature and power on, customers judge you by communication. A CRM that tracks every permit, inspection and utility milestone and updates the homeowner automatically keeps that trust. The solar industry page describes the site, phone and project tracking setup we build for installers.

How seasonal is solar installation?

• Northern states: snow and ice limit roof work in winter, so installs concentrate in spring through fall while sales and design continue year-round.
• Sun Belt: installation runs most of the year, with summer heat limiting roof hours and storm seasons adding repair work.
• Everywhere: permit and utility backlogs can matter more than weather. Track them by jurisdiction.

Use slower install months for service work, training and following up on proposals.

See our guides to starting an electrical contracting business and starting a roofing business for the trades solar draws on, or browse the start a company hub for the rest. When your licenses are in hand, ask for a free launch plan: the site, phone line and project CRM to start with, in order.

Frequently asked questions