My house has aluminum wiring. Is it dangerous?

Aluminum wiring (instead of copper) became quite popular during the 1970s, and was extensively used. Since that time, aluminum wiring has been implicated in a number of house fires, and most jurisdictions no longer permit it in new installations. We recommend, even if you’re allowed to, that you do not use it for new wiring. But don’t panic if your house has aluminum wiring. Aluminum wiring, when properly installed, can be just as safe as copper. Aluminum wiring is very unforgiving of improper installation.