ADT Solar customers in Illinois: what happened, and who services your system now

What happened

ADT announced in January 2024 that it was leaving the residential solar business, and ADT Solar, formerly Sunpro, stopped taking new projects by March 2024. No bankruptcy was filed. The Illinois Power Agency's 2025 Consumer Complaints and Disciplinary Actions report names ADT Solar among the out-of-business entities that received complaints in 2025.

Sources:Solar Law Firm, ADT Solar (Sunpro) shutdown explained (18 July 2025, updated 2 April 2026); Illinois Power Agency, 2025 Annual Consumer Complaints and Disciplinary Actions Report (27 February 2026).

What it means for your warranty

Your workmanship warranty is probably gone. When a company liquidates, its warranties are unsecured liabilities and generally do not survive the bankruptcy.

Your equipment warranty probably survived. Your panels and inverter are covered by the manufacturer, a separate company that still exists. Most major manufacturers are still honouring them. What you lost is the person who diagnoses the fault and files the claim.

ADT Solar closed without a bankruptcy, and its parent company, ADT, is still trading. That means the workmanship warranty was not wiped out in court the way it is in a liquidation. Whether ADT still honours it in practice is the question to put to them in writing, with your contract number, before anything else.

Who took over, if anyone

No successor company was announced for ADT Solar customers. The parent company, ADT, continues to operate. Start with the customer service contact on your ADT Solar paperwork and ask, in writing, who now handles solar warranty claims.

What you can still do

The state's Solar Restitution Program. The Illinois Power Agency's Solar Restitution Program pays up to $30,000 on a project of 25 kW or less and up to $50,000 on a larger one, to customers harmed by an Illinois Shines Approved Vendor or Designee. By June 2026 it had paid about $473,000 to 170 customers. The program decides eligibility, not us, and most affected homeowners have never heard of it.

Manufacturer warranty claims. Your modules and inverter carry their own warranties from the manufacturer, and those companies are still trading. Find the model and serial numbers on the inverter label and in your closing paperwork. A claim needs a diagnosis first, and the manufacturer will usually supply the replacement part and leave the labour to you.

Monitoring access. If your installer set up the monitoring account, get it into your own name now, while the manufacturer's support desk can still verify you as the owner. Enphase, SolarEdge, Fronius and SMA each have a process for handing a system to the homeowner. Without it, nobody can see what the system is doing.

Because there was no bankruptcy, a written warranty claim to ADT is still a live option. Keep a copy and the date you sent it.