Hunterdon County · 25 of 26 towns NJDEP Tier 1 Action level 4.0 pCi/L Free for homeowners — paid by the crews

Delaware Township, Delaware Township

Crawl space sub-membrane depressurization in Delaware Township

Sealed membrane over an open crawl-space floor with suction drawn beneath it. The right system when there is no slab to cut through.

If you are looking into crawl space sub-membrane depressurization in Delaware Township, what the building sits on is the place to start.

How this normally comes up

  • A reading that stays high in a house with no slab to work through
  • A dirt-floored or stone-walled crawl space under an older farmhouse
  • Insulation and ductwork in a crawl the ground is open to

Why this comes up in Delaware Township

Here is what makes Delaware Township particular: public supply reaches little of Delaware Township. A well draws from the Lockatong and Stockton formations, so the water and the soil gas share a source.

Delaware Township — the state's own numbers

42% of the 668 test results NJDEP holds for Delaware Township were at or above the 4.0 pCi/L action level — 283 of them. That puts it in Tier 1 — high potential.

Delaware Township is a large rural township between the Delaware River and the Sourland country, almost entirely farmland and woodland, and that shapes what a system here has to be designed around.

Getting the work done in Delaware Township

Open rural properties, though long private drives and outbuildings can constrain where equipment goes.

Delaware Township handles permitting for work at this address.

What the work involves

Where there is no slab, the ground itself becomes the barrier. Reinforced membrane is laid over the crawl-space floor, sealed to the walls and around the piers, and a suction point beneath it is piped to a fan. Sealing quality is the whole job here — a membrane taped at the seams and left loose at the wall performs nothing like one properly terminated.

Typical cost in Hunterdon County, NJ

$2,000 – $3,800 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.

Two houses on the same road in Delaware Township can need completely different systems.

Certification, checked before referral

Installing radon mitigation for a fee in New Jersey requires NJDEP certification as a radon mitigation business, affiliated with a certified radon mitigation specialist (N.J.A.C. 7:28-27). We confirm that on the NJDEP register and record the date we checked. That is a check, not an endorsement — satisfy yourself before you hire.

Want a quote before the closing date?

Tell us what you've got — a number, an inspection report, or just a house you've never tested. We'll route it to certified crews near you.

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