The estimated average cost of adding a conventional receptacle is between $60-$90, though prices may vary.

The estimated average cost of adding a 240-volt circuit is between $250-$350, though prices may vary.

The estimated average cost of adding a 120-volt circuit is between $150-$250, though prices may vary.

The estimated average cost of upgrading electrical services to 200 amps is between $1,500-$2,000, though prices may vary.

The estimated average cost of installing an alarm system is between $1,200-$1,800, though prices may vary.