How much does it cost to replace a backflow preventer?

Backflow preventer replacement cost varies by device type (vacuum breaker vs RPZ), size, location, and access. A technician will provide exact pricing after an on-site inspection. Many vacuum breakers can be repaired; RPZ assemblies often include testing and certification. Freeze-cracked bodies require full replacement; worn seals or springs can be rebuilt. Most municipalities require annual testing for RPZ and similar assemblies. We serve Denver, Thornton, and nearby areas. Promotions may apply: $50 off backflow work or $250 off vacuum breaker/backflow preventer.

Updated: 2025-12-21

Need help in Thornton, CO? Call (720) 994-7055 or book online.