Wisconsin Radon and Environmental has been providing Radon Mitigation Installation services and Radon Testing services in Milwaukee for over 10 yrs! This town has been our home for a lifetime and we are familiar with most all of the construction methods and how to work with them. Whether its coring through some old Cream City Brick for a renovation on the East-Side or a standard Sump Depressurization in a ranch on the South Side, we’ve got you covered!
Most people aren’t aware that Radon levels can be high in the Metro-Milwaukee area, In fact, we’ve seen some very high radon readings just West of Downtown Milwaukee. This is why we Always Recommend a test be conducted in the “heating months”. You may pass your test for your real estate transaction in the summer, only to find 10 yrs later that you have double the radon concentration during the winter, when you and your family likely spend more time indoors. Read more about why you should winter test here. You can always contact Wisconsin Radon & Environmental, for your radon testing needs.
There are two types of radon mitigation systems that we typically install in the Milwaukee area: Sub-Slab Depressurization and Drain-Tile Depressurization.
Drain-Tile Depressurization Radon Mitigation Milwaukee
If you have a “Post-War” Milwaukee Home (Built in or after the 40’s), you likely have a drain-tile system (but not always!). This is important because existing, OPEN, drain-tile can help us easily move air throughout the entire perimeter of the sub-slab. This is what we would call a standard Radon Mitigation System, with one suction point and a standard sized residential radon fan. If during construction we find damaged or clogged drain-tile, we will go through the options with you before continuing work. There is always a solution!
Sub-Slab Depressurization Radon Mitigation Milwaukee
If Your Milwaukee home is “Pre-War”, like many in the city. We will likely need to install a Sub-Slab Depressurization Radon Mitigation System. This is Where we actually collect the radon through the soil itself. If you can imagine a vacuum system drawing air through the soil itself, you can likely imagine that this type of radon mitigation system involves a bit more work and likely a “High Suction Radon Fan”. This type of system is typically a few hundred dollars more than a Drain-Tile Depressurization Radon Mitigation System, not a few thousand.
The size of the radon fan and the number of radon suction points are determined by what we call sub-slab diagnostics. This is where we pick our ideal suction-point location (typically as close to the center of the building foot-print as possible) and apply vacuum to the suction location while, simultaneously, taking pressure measurements throughout the entire sub-slab. This is called Pressure Field Extension or “PFE”. We find that we can get most homes to a safe level with one suction point and a High Suction Radon Fan, but homes with a large footprint may require multiple suction-points and on rare occasion a second radon mitigation system. The soil type is really the key to Sub-Slab Radon Mitigation. Clay is very difficult to move air through whilst loose dirt and/or a rocky-sandy soil can prove much more efficient. Block walls can also be considered for depressurization in some Milwaukee Radon Mitigation Systems.