Top Solar Installation Companies in the USA

A typical 6 kW–10 kW residential solar system installs for $15,000–$30,000 all-in in 2026, which works out to roughly $2.50–$3.50 per watt of DC capacity for premium-tier equipment and $2.10–$2.80 per watt for value-tier equipment. Battery storage adds $10,000–$16,000 for a single 10–13 kWh unit. The federal Section 25D residential solar tax credit expired on December 31, 2025, so homeowners who buy a system in 2026 cannot claim the 30% federal credit on their personal tax return. Third-party-owned systems (leases and PPAs) may still benefit from the commercial 48E credit through the system owner. State rebates, utility performance-based incentives, property-tax exemptions, and net metering remain widely available and continue to drive most of the post-incentive savings — ask each bidder to model your specific utility and ZIP code rather than a national average.

Physical installation of a residential PV system usually takes 1–3 days on the roof for a 20–30 panel array. The full timeline from contract signing to utility Permission to Operate (PTO) typically runs 4–12 weeks: 1–3 weeks for engineering and structural review, 1–4 weeks for permit issuance from the local Authority Having Jurisdiction, the install itself, then 1–6 weeks of utility interconnection review and inspection. Battery storage and main service panel upgrades add 1–4 weeks. Clear weather, an existing roof in good condition, a permit-friendly jurisdiction, and a cooperative HOA shorten that window significantly; high-volume utility queues and structural engineering exceptions can extend it to 16 weeks or more in dense metros.

Most US homes need a 6–10 kW system to offset 80–100% of annual electricity use, but the right size for you depends on five factors: your last 12 months of utility kWh consumption, your roof orientation and pitch, your shading profile during peak generation hours, your local net-metering policy (full retail, net billing, or avoided cost), and whether you plan to add an EV, heat pump, or pool heater within the next five years. A reputable installer will model your usage with NREL PVWatts, Aurora, or Helioscope using your actual utility interval data and roof scan rather than a sales-team rule of thumb. Oversizing past 15% of actual usage wastes capital under most modern net-metering structures.

Yes — every solar install requires at minimum a building permit, an electrical permit, and a utility interconnection approval. Many jurisdictions also require a structural review (especially for older roofs or unusual rafter spans), a fire-department setback review, and an HOA architectural approval if you are in a covenanted community. A reputable installer pulls every permit on your behalf as part of the contract and is named on the electrical permit as the responsible licensee. Never accept an offer where you are required to handle permits yourself: the licensee on the permit is the party financially responsible for code compliance, and homeowner-pulled permits leave you exposed if anything fails inspection.

Owned residential solar systems typically transfer with the home and can add 3–4% to resale value in most US markets, according to multiple appraisal studies including the LBNL Solar Premium research. Buyers usually love the system because it lowers their operating costs. Leased systems and PPAs are more complicated: the buyer must qualify with the lessor and assume the contract, or you must buy out the remaining balance before closing. Disclose your system type, monitoring credentials, warranty paperwork, and any active loan or lease as early as possible in the listing process. Many real estate agents now require a solar disclosure form at listing.

Filter our directory to your state and to Solar Installation, then sort by review count and rating. Look for NABCEP PV Installation Professional certification on at least one crew member, a current state contractor license verifiable at your state licensing board, at least $1M in general liability insurance plus workers' compensation, a documented 10+ year workmanship warranty, and at least 25 verified independent reviews. The Verified and Premier Verified badges on Top Solar Services indicate we have personally confirmed each of those items within the past year. You can also use Get Matched to receive up to five competitive quotes from local installers with a single form — free of charge.

Reputable installers bundle three distinct warranties, and you should require all three in writing before signing. First, the panel manufacturer warranty — typically 25 years on power output, guaranteeing the panel will still produce at least 85% of nameplate after 25 years. Second, the inverter warranty — 10–12 years for most string inverters, 20–25 years for microinverters like Enphase IQ8 and many DC optimizers. Third, the installer's own workmanship warranty — should be 10 years or longer and must cover both labor and roof penetrations, because that is where field issues actually occur. Ask whether the workmanship warranty transfers to a new homeowner if you sell, and whether the manufacturer warranties remain in force if the installer goes out of business.

Confirm your roof has at least 10 years of useful life remaining — if it does not, replace the roof first or use a single integrated contractor for both. Clear attic access along the planned wiring path. Document the existing roof condition with high-resolution photos so any post-install dispute has a baseline. Check your main electrical service panel: panels older than 30 years, with capacity under 200 amps, or with deferred-maintenance issues often require an upgrade for $1,500–$3,500. Notify your HOA if you have one and confirm any architectural review requirements. Trim trees that will shade the array within the next 5 years. Finally, gather 12 months of utility bills so the installer can model your real usage rather than estimate it.