The problem with insuring homes with aluminum wiring essentially began with Citizens Insurance, the State of Florida sponsored insurance company. Citizens last year began refusing to write insurance on homes with aluminum wiring. After considerable pressure by the legislature and others, Citizens recently agreed to allow a "retro fix" for such homes. Electrical contractors may now upgrade these homes by using devices that are designed to connect aluminum wiring to copper receptacles and other fixtures. These devices reduce the threat of "arcing" which has been the perceived concern about aluminum wiring and copper-wired fixtures. The "fix" is about $1500 for a typical home compared to $8,000-$12,000 for a complete re-wire. I hope this helps you. Please feel free to contact me for additional information about this issue.