Building-product price increases over time: Waterworks & Irrigation

Bars: increases taking effect that month (left axis). Lines: average and median stated % (right axis). Surcharges, decreases and rescinded increases are counted separately in the table below.

Method: The sample contains 1 collected notice effective from January 2025 through April 2027 for Waterworks & Irrigation; 1 counts as a price increase and 1 includes a usable stated percentage. Percentage statistics exclude separate surcharges, decreases, rescinded notices and increases without a stated percentage. A range such as 3–5% counts once at its midpoint; “up to” and “average” use the stated figure. Each notice has equal weight. These statistics describe collected announcements, not a typical contractor’s actual invoice; pricing can vary by product, region, supplier and account terms.