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A basement with a high test result
A small pipe and a quiet fan pull air from under the slab and vent it above the roof, before it can rise into the house.
Take the gas out from under the floor
Most radon in a basement house comes up through the slab. A sub-slab system makes the air under the floor move in one direction: out, through a pipe, to a vent above the roofline.
We make a small opening in the slab, set the pipe, seal the cracks and gaps we can reach and add a fan that runs all the time. A gauge on the pipe lets you see that the system is working.
Good time to call if
- A test came back above the level you are comfortable with
- The house has a basement or a slab floor
- You want to use the lower level as living space
- You are selling and the buyer's test was high
How the system goes in
- 1Look at the foundationWe check the slab, the sump and where a pipe can run.
- 2Plan the routeA short run, out of sight where possible, to a vent above the roofline.
- 3InstallCore the slab, set the pipe, seal the gaps and mount the fan.
- 4Test againA follow-up test confirms the system is doing its job.
What the work includes
Pipe and suction point
A hole through the slab and a sealed pipe into the soil gas layer.
Fan and vent
A quiet in-line fan and a vent that carries the air above the roof.
Sealing
Cracks, the slab edge and the sump lid sealed so the fan can do its work.
Gauge and test
A pressure gauge on the pipe and a follow-up test.
Questions about this job
Is the fan loud?
It is about as loud as a quiet appliance, and it is usually outside the living space.
Will it use a lot of electricity?
The fan is small and uses about as much power as a light bulb.
Where does the pipe go?
We choose the route with you. Many go through a utility corner, a closet or the garage, and up and out above the roof.
Related radon work
Book the free estimate
Tell us about the house and whether it has a basement, slab or crawl space. We come out and send a written quote.
(319) 403-6594
Free estimate and a written quote