Plumbing
Backflow Prevention in Scotch Plains & Union County, NJ
Backflow preventer installation, testing, and certification to keep your drinking water safe.
Why homeowners call Vanguard for backflow prevention
- Licensed and insured. Master Plumber NJMPL 13344 and NJ HVACR 19HC00609600 — every job is performed by our own licensed technicians, never a subcontractor.
- Upfront pricing. You approve the price before work begins. No surprise line items when the job is finished.
- 4.9 stars across 495+ reviews. Union County homeowners keep calling us back, and they tell their neighbors.
- Available 24/7. Emergencies do not keep business hours, so neither do we.
What it costs
Pricing depends on the specifics of your home — access, age of the existing system, and whether permits are required. Rather than quote you a number that changes on arrival, we give you a real range up front and confirm it in writing during a free on-site assessment.
Get a price range for backflow prevention →Related plumbing services
Areas we serve
We provide backflow prevention throughout Union, Middlesex, Somerset, and Essex counties, including:
Ready to Get It Fixed?
Call us or fill out the form. We'll get back to you fast.
Financing available — see plans →