Hired RBI by Unilocal recommendation(not sure about Corona Electricity — may be a name change). But an appointment for interior home phone line repair(no dial tone at any jack) was set within 24 hours and the technician called to ask if was okay to come early. Upon arrival, the technician quickly diagnosed the problem and had it and a faulty dimmer switch fixed in under an hour. Their rate was $ 80/hour plus parts. The technician had zero personality(which prevents a 5th star rating) but he clearly knew what he was doing and was careful to close the front door as he came/went so that my cat wouldn’t get out and the hot air wouldn’t come inside(very conscientious). Would certainly use again and recommend!