A solar company sits on both sides of the certificate. Homeowners, HOAs, building owners, lenders and tax equity investors require a COI from you, and when you hire roofers, electricians and trenching crews, you have to prove they carry the coverage your contracts and their work demand. COISoftware reads every certificate with AI, checks general liability, completed operations, workers compensation and auto against what you require, and confirms additional insured status. Upload a COI above to see it read in seconds.
Last updated July 2026
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A roofer, an electrician and an equipment supplier carry different risk, so solar companies require different coverage by trade. These are common starting points, not legal or insurance advice.
| Trade or party | Coverage commonly required | Why the solar company verifies it |
|---|---|---|
| Roofing and mounting subcontractors | General liability with completed operations, workers compensation, additional insured | Roof penetrations create leak and fall exposure that surfaces after the job is done |
| Licensed electricians | General liability, workers compensation, additional insured | Panel and interconnection work is a fire and shock exposure the electrician should own |
| Trenching and site crews | General liability, workers compensation, auto | Excavation and equipment on site create property and injury claims |
| Equipment and module suppliers | General liability with products liability | A defective panel or inverter is a product exposure separate from the install |
| Engineering and design vendors | Professional liability, general liability | A design or stamping error is covered by professional liability, not general liability |
Set requirements to your own contracts, licensing rules and state law. Coverages shown are common starting points, not legal or insurance advice.
Solar work puts crews on roofs, ties equipment into a building electrical system, and leaves an array that has to perform for decades. That means the coverage a solar company relies on is not just general liability, and the parties it depends on, roofing subs, licensed electricians, trenching crews and equipment suppliers, each create their own exposure. A generic certificate check misses the coverages a solar claim actually turns on.
A roof penetration that leaks months after the array is energized is a completed operations claim, not an ongoing operations one. A certificate that shows healthy general liability but no products and completed operations coverage leaves the exact loss solar work is known for underinsured, which is why completed operations has to be verified specifically.
A subcontracted roofer drilling into a customer roof creates a property damage and a fall exposure a plain certificate can hide. Confirming the roofing sub carries general liability and workers compensation, with the solar company and the owner named as additional insured, keeps that risk with the party doing the work.
Tying a system into a building panel and the grid is licensed electrical work where a mistake causes fire or shock. A certificate from a subcontracted electrician needs current general liability and workers compensation, and the utility interconnection or PPA agreement often requires proof of coverage before the system can be energized.
Homeowners, HOAs, commercial building owners, lenders and tax equity investors on larger projects all require the solar company to furnish a certificate, often naming them as additional insured or loss payee. Producing the right certificate for each party on time is its own tracking problem, and a wrong or late COI can hold up a closing or an interconnection.
A residential installer routing dozens of jobs through subcontracted roofing and electrical crews faces certificates that cancel mid term, not just at renewal. A crew that was compliant at onboarding can be uninsured by the time it climbs the next roof unless coverage is monitored continuously.
One subcontractor is manageable by email. A roster of roofing subs, electricians, trenching crews and equipment suppliers, spread across residential jobs and a commercial project, is where renewals slip and a roof leak exposes a certificate that lapsed weeks earlier.
The certificate a subcontractor sends at onboarding is a snapshot from that day, not proof of coverage through a multi week install. Confirming that every roofer, electrician and crew bought the right coverage, including products and completed operations, kept it current, and named the solar company and the owner as additional insured is repetitive, rules based work across a changing roster. That is what software handles well. Certificate of insurance management software reads every certificate, checks it against each contract, and flags anything short, expired or missing before a crew mobilizes.
COISoftware reads every subcontractor certificate, checks it against your contracts, confirms completed operations and workers compensation are in place, and gives you one view of insurance compliance across every crew and project.
Upload a certificate from a roofing sub, electrician, trenching crew or equipment supplier and the AI pulls the insurer, policy numbers, coverage types, limits, effective and expiration dates and additional insured status, even from scans and phone photos.
Set products and completed operations as a required coverage, and every certificate is checked for the coverage a roof leak or system failure claim actually needs, not just the ongoing operations line a generic review stops at.
See whether the solar company, the owner and the lender are named as additional insured on the subcontractor policy, so the status your contract, interconnection or financing requires is verified rather than assumed before work starts.
Flag when a subcontracted roofer or electrician is missing workers compensation for crews at height or auto for vehicles on site, so you never mobilize a crew that is short on the coverage the work demands.
Track every subcontractor across every job in one dashboard, filter by project or trade, and hand any owner, lender or investor a clean, current compliance record on request.
When a subcontractor certificate is about to expire, COISoftware chases the renewed COI automatically, so no crew is on a roof with coverage that lapsed mid project.
COISoftware reads the ACORD 25 and the broader certificate of liability insurance, then ties every certificate into full certificate of insurance management software and ongoing vendor insurance compliance tracking. When a certificate looks off, the same checks behind certificate of insurance verification flag it. Subcontracted roofing and electrical crews are verified the same way as subcontractor COI tracking for contractors, and the general contractor view of the same job is covered in COI tracking for general contractors.
Standing up insurance compliance for a new subcontractor follows four steps.
Enter the coverages, limits and additional insured wording each contract, interconnection and financing agreement requires, and include products and completed operations and the workers compensation the work demands. Vary the rule by trade so a roofer and an electrician each get the right requirement.
Tip: Copy the insurance exhibit straight from each contract and financing agreement so the requirement is tracked from day one.
Request a COI from each subcontracted roofer, electrician, trenching crew and equipment supplier, or upload the certificates you receive. The AI reads every one automatically, so staffing a project does not turn into hours of manual data entry.
Each certificate is checked against the requirement for that trade. A missing completed operations line, no workers compensation for a crew at height, a limit below the contract minimum, and a missing additional insured endorsement are flagged before a crew is cleared for the job.
Automated reminders chase any expiring certificate across every crew and project, so coverage stays current through a multi week install without operations tracking dates by hand.
Anyone responsible for proving that every crew carries the coverage the contract and the work require.
A solar installer needs to know, before a crew climbs a roof, that every roofing sub, electrician and trenching crew carries general liability with completed operations and the workers compensation the work demands, and names the installer and the owner as additional insured. COISoftware turns each requirement into a live status, so operations sees a clear pass or flag instead of opening a stale certificate and hoping the coverage still holds. Knowing why completed operations matters is covered in our guide to completed operations coverage.
A developer or EPC contractor on a commercial project verifies that every subcontractor carries the coverage the contract, interconnection and financing require, and can hand a lender or tax equity investor a clean compliance record on request. Subcontracted crews are verified the same way as subcontractor COI tracking for contractors.
The team furnishing an owner or lender a required certificate and clearing crews for the next install is often the one holding the risk if a certificate is missing. To collect, verify and monitor every certificate in one place, pair this with vendor insurance compliance software, and if you are comparing platforms, our best COI tracking software roundup walks through the options honestly.
Most solar installers carry general liability with products and completed operations, workers compensation, commercial auto, and often professional liability and an umbrella for larger projects. Completed operations matters most because roof and system claims often surface after the job is done. Owners, HOAs, lenders and tax equity investors usually require a certificate of insurance naming them as additional insured before work or financing closes.
When a solar company hires roofers, electricians or trenching crews, those subs work under its contract and on its customer roofs. If a sub is short or lapsed on general liability or workers compensation and a roof leak, fire or injury follows, the claim can land on the solar company. Verifying and tracking each subcontractor certificate keeps that exposure with the party that created it.
Completed operations coverage responds to property damage or injury that occurs after a job is finished but results from the work, like a roof penetration that leaks months after an array is energized. A standard general liability policy may only cover damage during active work, so solar companies verify products and completed operations specifically on every certificate.
Usually yes. Contracts, utility interconnection agreements and financing often require the solar company and the property owner to be named as additional insured on the subcontractor policy, so they have a direct claim on that coverage if drawn into a lawsuit. A certificate that lists them only in the certificate holder box is notice, not coverage, and an endorsement should be requested.
COI tracking software reads each subcontractor certificate, checks it against the contract requirement, and keeps a live status by crew and project, so operations sees which crews are cleared and which are short, expired or missing a coverage. It also chases renewals automatically, which matters when a certificate can cancel mid project rather than only at renewal.
Pricing depends on how many subcontractors and projects you track and whether you want self serve software or a managed service. COISoftware lists transparent monthly pricing and offers a free tier, so a solar company can start reading and verifying subcontractor certificates without a sales call. You can test it on your own certificates before paying anything.
