Block-wall depressurization in Sergeantsville, NJ

If you are looking into block-wall depressurization in Sergeantsville, what the building sits on is the place to start.

The situations this follows from

Radon entering high on the wall rather than at the floor
An older block wall with an open top course
A hollow concrete-block foundation wall

Why this comes up in Sergeantsville

Public supply does not reach the village or the farmland around it. A well here draws from the Lockatong argillite — the uranium-bearing rock that makes this corner of the county what it is.

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.

Sergeantsville is the village at the centre of Delaware Township, near the state's last remaining covered bridge, and that shapes what a system here has to be designed around.

Getting the work done in Sergeantsville

Village lots are modest; the surrounding farm properties are open.

Delaware Township handles permitting for work at this address.

What the work involves

Hollow block walls are a network of interconnected voids running from the footing to the top course, and soil gas uses them as a chimney. Treating them means sealing the top course and drawing suction from inside the cavity, usually alongside a sub-slab system rather than instead of one.

Typical cost in Hunterdon County, NJ

$1,800 – $3,200 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.

Nobody can tell you what yours needs from a description alone, including us.

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.

Have a result you don't know what to do with?

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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Other work in Sergeantsville

Same ground, different question.

Block-wall depressurization nearby

Neighbouring towns on the same ground.