Bergen County · Underground storage tank (UST) work — NJDEP-regulated
Ridgewood's Victorian and colonial housing stock predates gas heat in much of the village, so undocumented buried oil tanks are a common pre-sale concern.
19 NJDEP-certified UST firms are based in Bergen County (statewide firms serve Ridgewood too):
Midland Park Boro · Cathodic Protection Tester + Closure
South Hackensack Twp · Closure + Installation-Entire UST System
Mahwah Twp · Closure
Hackensack City · Cathodic Protection Specialist + Closure
Fair Lawn Boro · Cathodic Protection Tester + Closure
Oakland Boro · Closure + Installation-Entire UST System
All Bergen 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.
19 NJDEP-certified UST firms are based in Bergen County, and statewide firms serve Ridgewood 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.