Yes — Mainstream’s licensed and certified backflow technicians repair, rebuild, and replace damaged or leaking backflow preventers of all common types (PVB, DCVA, RPZ). For minor seal or check issues we can usually rebuild on site. For severely damaged or freeze-cracked assemblies, full replacement is faster and more reliable.
Common backflow repair work
- Internal seal and check repair
- Spring and disc replacement
- Freeze-damage repair or full assembly replacement
- Annual certification testing
- Permit and reporting to your water purveyor
See our backflow prevention service for full details, or pair with PVB service if you have an irrigation-specific assembly.
