A frequent business type near 4c's London Builders is Cafes and Snack Bars.
IT problems can be resolved at various neighboring Computer Maintenance and Repair stores. If you are hungry there are a few restaurants serving the area. Head down to the Drug Store for everything from prescriptions to cold and flu remedies and cosmetics. Looking for property in the neighborhood? Why not try one of a few local Real Estate Agents?
The local area boasts numerous Taxis. Roses are red, violets are blue. If you are in need of a florist there's one near you. For food stuffs and household goods there is a Grocery Store around to provide. Need a room for the night in Ealing, London? There is a local hotel.