I bought a house with knob and tube wiring. Part of the purchase was to update the wiring. Norfolk Electric was really busy and it took them a couple of weeks to book an appointment, The two gentleman that came left a huge mess, exposed old wiring, plaster all over the place including on the bed. They complained about the job while I was there, granted it is a really old house and most of the wiring had to be fished through the walls. It just seemed unprofessional and like they had better things to be doing. They did do a good job, though they had to be called back to take out some wiring they missed but they came quickly.