Yorkshire Water says the increase equates on average to around £2.80 per month. Matt Pinder, customer director at Yorkshire Water, says: "This is our largest-ever investment package – designed to drive significant progress in areas we know are important to our customers. "The money we collect from customer bills, alongside shareholder investment and borrowing, will be spent on a wide variety of improvements across the region – plus delivering a better service for our customers." He adds: "We know that bill rises will be difficult for some customers. Over the next five years, we’ll be providing £375m in financial support to 345,000 customers through a range of different schemes.