Certified Radon Mitigation Contractors in WI
Radon is colorless, odorless, and responsible for more lung cancer deaths each year than most people realize. If your test came back high — or you have never tested — Local Radon Mitigation installs home radon mitigation systems that pull contaminated air out from under your foundation before it reaches the rooms where your family breathes. One visit. One day. Confirmed results.
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What We Do
Every home is different — different foundation, different layout, different radon entry points. We do not install the same system in every house and call it done. After assessing your home, we design and install the right configuration for your specific situation, then test to confirm it is actually working.
The most widely used and field-proven approach for homes with basement or slab-on-grade foundations. We create a suction point beneath your foundation slab, connect it to a dedicated fan, and route the exhaust pipe up and outside. Radon is drawn out of the soil before it has any path into your living space.
Open or vented crawl spaces are one of the most common entry points for ground-level radon. We seal the crawl space floor with a heavy-duty vapor barrier and install active ventilation that pulls radon out continuously — cutting it off before it travels up into the rooms above.
An older system that has not been tested in years may no longer be doing the job. We inspect existing installations, check your current radon levels, and repair or replace components — fans, pipes, seals — that are underperforming. We also upgrade passive systems to active ones when levels call for it.
Included with every installation we complete. After your system has run for the required period, we test your indoor radon levels and provide written documentation confirming they have dropped below the EPA action threshold of 4 pCi/L. You get proof — not just an assumption — that the system is working.
Why Local Radon Mitigation
Certification matters. Ours is current, not hanging on the wall from a decade ago. Every installer on our team holds active NRPP/AARST credentials and understands how pressure dynamics, foundation design, and building layout interact — because that knowledge is what turns a fan-and-pipe into a system that genuinely performs.
How it works
Call us or fill out the form. Tell us your test result and foundation type if you know it. If you are not sure, we will figure it out together. Most quotes are ready within 24 hours.
A certified radon mitigation contractor visits your home, walks the foundation, and confirms the right system design for your layout. You get a written quote before any work is scheduled.
We arrive on time, work efficiently, and have most systems fully installed within four to eight hours. We handle every component — pipe placement, fan mounting, exterior routing, and all penetration sealing.
After your system runs, we conduct a post-mitigation radon test to confirm levels have dropped below the EPA's 4 pCi/L action threshold. You receive written documentation of before and after results — useful for your own records and for future real estate transactions.
By the Numbers
Radon is colorless, odorless, and present in homes across Wisconsin right now. The numbers tell the story
One test tells you where you stand. One call fixes it.
Who We Work With
Does This Sound Familiar?
Our Coverage
We provide certified radon mitigation services throughout Milwaukee and southeastern Wisconsin, including:
From Homeowners in Wisconsin
Our test came back at 11 pCi/L three weeks before closing. Local Radon Mitigation had the system in within four days and our follow-up reading was 0.9. The sale went through without a single issue.
Milwaukee, WI
What stood out was how straightforward the whole thing was. The quote matched the invoice exactly. The installer explained every step. I have already recommended them to two neighbors.
Brookfield, WI
We have young kids and a finished basement where they spend most of their time. Once we saw the radon reading, we moved fast. Local Radon Mitigation came out quickly and the results were confirmed before the week was out.
Cudahy, WI
FAQ's
It creates a pressure difference between the soil beneath your foundation and the air inside your home. Using a dedicated pipe and a continuously running fan, the system pulls radon-laden soil gas out from under the slab and exhausts it above the roofline — before it has any chance to accumulate indoors.
The majority of residential installations are completed in four to eight hours on a single day. Homes with complex foundations, multiple entry points, or combination foundation types may require additional time, which we flag during the assessment
Your system runs continuously and quietly. We conduct a follow-up radon test to confirm levels have dropped. From there, periodic testing every two years is a reasonable practice — particularly if you modify your home's foundation, HVAC, or lower-level layout. Most systems require no regular maintenance beyond confirming the fan indicator is showing normal operation.
The main pipe runs from beneath the slab to the exterior, typically through a utility space, rim joist area, or closet. Our installers work with your home's layout to find the least intrusive route. The exterior components are functional and straightforward — comparable in appearance to a standard plumbing or HVAC penetration.
A documented, professionally installed system is an asset during a real estate transaction. Buyers and their agents understand what it means. It removes radon as a negotiation issue and demonstrates that the home has been maintained by someone who takes the details seriously
Installation cost depends on your foundation type, the number of suction points required, and your home's layout. We provide written, itemized quotes at no charge before any work begins. The range is consistent with what most homeowners consider straightforward compared to the long-term risk of unaddressed radon exposure.
CLEAN AIR. SAFER HOMES.
A high radon reading does not go away on its own. If you have been sitting on a test result — or you have never tested and want to know where your home stands — Local Radon Mitigation is ready to help
We serve homeowners across WI with certified, same-week radon mitigation system installation. Free quote. Written pricing. Verified results before we close the job
Certified. Licensed. Insured. Locally based in WI since
