ADT to Buy Solar-Panel Installer for About $825 Million

ADT Inc. has struck a deal to buy a top solar-panel-installation company in a push to offer more products and services to its residential customers, according to people familiar with the matter.

The home-security company is buying Sunpro Solar for about $825 million, including debt, using $160 million in cash and 77.8 million shares of ADT stock, the people said.