Union County · Underground storage tank (UST) work — NJDEP-regulated
Cranford's early-1900s housing near the Rahway River pairs older oil-heat systems with damp ground — conditions that accelerate buried-tank corrosion and leaks.
11 NJDEP-certified UST firms are based in Union County (statewide firms serve Cranford too):
Roselle Boro · Closure Waste Oil + Install Waste Oil
Berkeley Heights Twp · Closure + Installation-Entire UST System
Hillside Twp · Closure + Subsurface Evaluation
Linden City · Cathodic Protection Specialist + Closure
Summit City · Closure
Hillside Twp · Closure + Subsurface Evaluation
All Union County firms · full New Jersey list
Removing a buried residential heating-oil tank in New Jersey typically runs about $1,500–$3,000 when there's no leak. A leaking tank means soil remediation, which can push the total into five figures — which is why a pre-purchase sweep (~$200–$500) matters. A certified firm gives a firm quote after locating and assessing the tank.
Yes. Underground tank closure and removal in New Jersey is regulated by NJDEP and the local construction and fire officials — the work must be done by an NJDEP-certified firm, with permits pulled and the closure properly documented. That paperwork is what protects you and any future buyer.
11 NJDEP-certified UST firms are based in Union County, and statewide firms serve Cranford as well. New Jersey requires companies that test, close, or remove underground storage tanks to hold NJDEP certification by category — "subsurface evaluation" is the one most relevant to pre-purchase sweeps.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.