Swapping a worn or failed fan for one matched to the pressure the system runs at, and confirming the house came back down afterwards.
This comes up often enough here that most certified crews in the county have a settled way of handling it.
When this is the right question
- A fan that has become noisy, or has gone silent
- A manometer that has gone level after years reading offset
- An alarm on the system that has started sounding
- A system installed long enough ago that the fan is past its expected life
What the work involves
Radon fans run continuously and are generally expected to last around five to ten years. Replacement means matching the new fan to the static pressure the system actually runs at rather than fitting whatever size is on the van, and re-checking the manometer once it is running. A clearance test afterwards confirms the house came back down.
Typical cost in Hunterdon County, NJ
$300 – $750 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.
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?
One description is enough. We'll send it to certified local crews and leave the decision entirely with 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.