Sealing, sump covers and slab-crack closure in Raritan Township

Whether sealing, sump covers and slab-crack closure is the right answer in Raritan Township depends on what is actually under the floor.

When this is the right question

• Utility penetrations and floor drains with nothing around them
• A visible gap where the slab meets the foundation wall
• A crawl-space hatch that soil gas moves straight through

Why this comes up in Raritan Township

The developed corridor and the rural township are not on the same footing. Where an address is on a well, it draws from the Passaic Formation shale — the same fractured rock feeding gas to the slab. That is part of the context any crew working in Raritan Township has to design around.

Raritan Township is the largest township by population in Hunterdon County, wrapped completely around Flemington Borough, and that shapes what a system here has to be designed around.

Getting the work done in Raritan Township

Generally good. Subdivision lots have side access and room for exterior pipe runs.

Any permit for this runs through Raritan Township. NJDEP radon certification has to be current before a business receives anything from us.

What a certified crew will do

Sealing on its own rarely brings a house below the action level and should not be sold as though it will. What it does is make an active system work harder for its money by cutting the leakage paths that otherwise short-circuit the suction — so it is nearly always done as part of an install rather than instead of one.

A crew that works Raritan Township regularly will have met this pattern before.