I agreed to have an electricial service panel replaced by Black Diamond and agreed to the pricing. My mistake was not asking for an itemized quote. Didn't realize I was being charged $195 per installation of three smoke detectors. These were replacement units so it didn't require running electricity to the alarms. I also asked for a "Ring" doorbell to be installed and was charged $195 for that installation (Ring will send someone to your home for $50 to perform the installation.) Had I known the cost for these four items, I would have made other arrangements. Since the electrician was already at my home replacing a service panel for thousands of dollars, I guess to my mind there could have been some economy of scale. Don't get me wrong, didn't expect the additional services would be performed at no charge, but I could have purchased the three smoke/carbon monoxide detectors for around $35 each and had my handyman install them for probably $100 for all three. A cost to me of around $200 instead of almost $600. Word to the wise. Get an itemized quote.