Copper theft is rising across the U.S. as the value of copper skyrockets—and is now estimated by the U.S. Department of Energy to be a $1 billion-dollar problem. One of the most frustrating issues for victims of copper theft is it typically causes more in property repair and other damages than the actual value of the copper itself.

Farmers are one target of copper thieves, who steal copper wiring from irrigation systems and can cause thousands of dollars in damages for even just $50 worth of wire. The inconvenience and repair costs are only part of the equation for farmers. Losing critical irrigation systems for sometimes several days, especially during a dry, hot summer, puts crops at risk.

Vacant buildings, foreclosed buildings, and construction sites are also popular with cooper thieves, primarily because they’re easier targets than occupied buildings. Copper pipes, wiring, plumbing, gutters, and flashing are ripped from walls, and air conditioning units are stripped of copper coils.

Batteries are yet another target. Unattended boats and even parked cars are at risk during summer months when boating activities are in full swing.

Securing your property is the best defense against copper theft. To combat copper theft, farmers are using spike strips, installing, alarm systems, and even forming watch groups. Tips for homeowners and property owners include making sure a property looks lived in, including installing and keeping blinds closed, using light timers, mowing the grass regularly, and removing junk mail. And for buildings under construction, things like storing materials out of sight, securing tools where they can’t be seen through windows, and getting rid of dumpsters quickly can make a difference.