Point-of-entry aeration for private wells carrying radon into the house through the plumbing. The half of the problem an air system can't reach.
Owners here run into this regularly, and what the right answer is depends heavily on what the building is sitting on.
When this is the right question
- A private well and an indoor reading that a soil-gas system did not fully explain
- A gross alpha or radon-in-water result from a Private Well Testing Act sample
- Readings that spike in the bathroom during and after a shower
- Neighbours on the same aquifer with known radioactivity in their water
What a certified crew will do
Aeration strips radon out of the water in a vented tank before it reaches the taps, then discharges it outdoors. It is the treatment the EPA points to for high waterborne radon, it needs a repressurisation pump and annual servicing, and it belongs at the point of entry — treating one bathroom does nothing for the rest of the house.
Typical cost in Hunterdon County, NJ
$3,800 – $6,500 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.
The credential behind this work
New Jersey licenses this work specifically: a certified radon mitigation business, affiliated with at least one certified radon mitigation specialist. We check the NJDEP register before a crew receives anything from us and we log when we checked. Certifications lapse, so ask to see a current one before you sign anything.
Want a quote before the closing date?
Describe the foundation and the reading. We'll match it to businesses certified for exactly that work, at no cost to you.
Tell us what you've got →Coverage
Towns where this is the right question
These are the towns whose geology and housing stock actually put this on the table.
Highlands ridge and limestone valley
Precambrian gneiss and granite of the Reading Prong, cut by carbonate valleys. The highest-potential ground in the county, and almost all of it on private wells.
Newark Basin shale country
Red shale and mudstone of the Passaic Formation under Flemington and the centre of the county. Fractured rock, plenty of basements, and a mix of public water and wells.
Diabase uplands and the Delaware corridor
Sourland-type diabase and the dark argillite of the Lockatong Formation. Stone farmhouses, open crawl spaces, and river-town cellars cut into rock.