The sink, faucets, and dishwasher will need to be disconnected prior to removing your old countertops. Most homes have shut-off valves under the sink. If your home does not have shutoff valves, a plumber should be contacted to have them installed. A countertop installation, in rare cases, may take a few days to complete and shut-off valves for the kitchen faucets must be in place to avoid having the water completely shut off to your home during this process. There will be some unavoidable minor damage done during the tear out to surrounding walls, existing tiles, and possibly cabinets. Countertop installers are not responsible for this damage. This type of damage occurs with most installations and the customer should be prepared to make touchups and repairs once the countertops are installed. AMF will not discount, credit, or in any way reduce the price due to minor scratches or construction damage. The removal of existing countertops and the installation of new countertops is a major construction process. There will be minor damage to surrounding areas and some amount of dust and debris will be created.