NYC Cross Connection Control & Backflow Prevention
Engineering design, DEP submissions, and backflow prevention plans that protect NYC's drinking water and keep your property compliant.
Precision Engineering provides comprehensive cross connection control and backflow prevention services for commercial, industrial, institutional, and residential properties throughout New York City.
Per NYC DEP, a wide range of facilities — including auto repair shops, commercial kitchens, medical and dental offices, schools, laundromats, car washes, hotels, and buildings with irrigation systems, pools, boilers, or multiple water services — are required to install and maintain backflow prevention devices to safeguard the public water supply.
Our team handles every step of the process: site evaluation and hazard assessment, engineering design, DEP plan preparation and submission, self-certification reviews, record drawings, and ongoing annual compliance support. We coordinate closely with Licensed Master Plumbers and certified backflow testers to deliver a turnkey path from notice to approval.
Whether you're opening a new business, renovating a building, responding to a DEP backflow notice, or installing a new water service, we provide code-compliant designs and end-to-end project management — with fast turnaround and clear communication across all five boroughs.
Protecting the public water supply. Keeping your property DEP compliant.
Solutions we provide.
- 01Cross Connection Surveys and Hazard Assessments
- 02RPZ and Double Check Valve Assembly (DCVA) Design
- 03Backflow Protection for Domestic, Fire, Irrigation, and Boiler Services
- 04NYC DEP Plan Approval Packages and Submission Management
- 05Self-Certification Reviews and Exemption Evaluations
- 06Record Drawings, As-Builts, and Existing Condition Surveys
- 07Annual Testing Coordination and Compliance Tracking
- 08DEP Violation Assistance and Correspondence Support
- 09Coordination with Licensed Master Plumbers and Certified Testers
- 10Code Compliance Reviews and Regulatory Coordination
Let's get practical.
Tell us about your project — we'll respond with a tailored scope and a clear path forward.