AlphaPlumbers & Drain

Oyster Bay, Nassau County · Backflow Testing & Certification

Backflow Testing & Certification in Oyster Bay

When Oyster Bay residents and businesses need backflow testing, Alpha Plumbers & Drain brings the same documented, scope-first process used across Nassau County. Backflow preventer testing is a required annual filing under NYC DEP §1127 for most commercial and many residential properties. We're DEP backflow certified and file the paperwork as part of the visit.

What's included

  • Annual backflow preventer testing
  • NYC DEP §1127 certification filing
  • Repair of failed preventers

Frequently asked

Do you handle the DEP filing?

Yes — testing and the required city filing are both part of the visit.

Do you come to Oyster Bay?

Yes — Oyster Bay is a regular part of Alpha's Nassau County service area. If you're right on the edge of coverage, call and we'll confirm.

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