Kdc Electric just changed the battery in my smoke detector because I have high ceilings and they were very nice when they came and on the phone. They were timely and it was quick. This is the first time I've used them and I won't use them again only because I'm not living there in the area that much longer and my condo management takes care of everything except for the smoke detector. So, that's the only thing I would ever have to call them for. I was pleased with the service, I just googled it and they showed up.