Greenwich receives municipal water from the Aquarion Water Company's Stamford and Bridgeport treatment plants. The water has a pH of 7.2 to 7.8 and contains chloramine for disinfection. Chloramine is less volatile than chlorine but more aggressive on certain copper alloys. Homes built between 1980 and 2000 often used M-type copper tubing for supply lines, which is thinner-walled and more susceptible to pitting corrosion under chloramine exposure. Over time, pinholes form on the inside of horizontal runs, creating slow leaks that do not produce visible water damage but quietly inflate your bill for months before you notice the sudden spike in water bill.
United Plumbing Greenwich works exclusively in Fairfield County and maintains detailed records of failure patterns in local housing stock. We know which Greenwich subdivisions used galvanized steel, which used copper, and which transitioned to PEX during construction booms. This local knowledge allows us to predict likely failure points before we start testing, reducing diagnostic time and minimizing the cost of isolating your excessive water usage. When you hire a plumber unfamiliar with Greenwich's water chemistry and soil conditions, you risk incomplete diagnostics, misidentified leaks, and unnecessary excavation. Local expertise is not optional for this type of problem.