My son made a repair to the water line coming into the house today. The water company came out and turned off the main meter and then turned it back on. The repair worked. However, when the water came back on, after a few minutes, the pressure dropped tremendously in the kitchen. It is fine everywhere else.

What to do??

Check the simple things first: you should find that the aerator comes off (i.e. the piece at the very end of the faucet unscrews). There is a small screen inside it - see if it is plugged.