This home was built in the early 1900s and included an original Michigan fieldstone basement along with two additions, each with its own crawlspace. After discovering the basement floor had been filled with concrete and covered with a vapor barrier, we installed the RadonWell in the larger crawlspace near the center of the space.

We dug a 24-inch hole, set the top of the well 14 inches below the soil surface, and ultimately installed a Festa Eagle Extreme fan.

Pre-mitigation radon levels were 8.3 pCi/L. Post-mitigation levels came in at 0.4 pCi/L.

The installation took about 6 hours. Without a RadonWell, this would have been a two-day job and possibly stretched into a third.

The homeowner was very excited to see radon levels reduced from 8.3 pCi/L to 0.4 pCi/L.

This crawlspace was nearly impossible to access, with most areas under 12 inches high and a separating footer wall splitting the space in two. The crawlspace also contained dry-stacked piers, HVAC ducting, plumbing, gas lines, unsupported electrical wires, and extremely dry, dusty soil with no vapor barrier installed. Every movement created a dust storm.

The RadonWell® was installed beside and underneath the separating footer wall using 4-inch PVC connected to a RadonAway RP265 fan generating 120 CFM. The entire installation took 4 hours while working almost entirely on my belly. Without the RadonWell®, this project would likely have taken 5 to 6 days.

Pre-mitigation radon levels were 41 pCi/L. Post-mitigation testing with a RadStar CRM averaged 3.5 pCi/L.

The homeowner couldn’t have been happier with the results.

This job was in an 1,800 sq. ft. crawlspace with a 20 mil vapor barrier already in place and two sump pumps working on what was very high-moisture soil. Radon levels were sitting at 8.9 pCi/L. The crawlspace wasn’t bad to work in, but conditions called for a strategic approach.

We cut a 3′ x 3′ section in the barrier, dug down about 20″, and installed the RadonWell® system with 3″ PVC run through the rim joist to an RP145 fan pulling 1.0″ WC. Within 72 hours, the radon dropped to 0.8 pCi/L. A month later, suction evened out at 0.5″ WC, and the soil under the barrier was bone dry. Another 48-hour test had the radon at 0.7 pCi/L.

The whole installation took a two-man crew just 8 hours. A traditional approach would have taken two technicians more than 12 hours.

The homeowner was ecstatic, not just with the radon reduction but with how much the system helped address the moisture issue.

This was an approximately 800 sq. ft. slab-only home with no usable space to install a traditional mitigation system. The house had a single utility room packed with a furnace, water heater, laundry, and a sink, leaving no place for a suction point. The only unfinished attic space was a shallow, angled storage area that couldn’t accommodate a fan. There was no interior chase or practical routing path, and installing a fan inside the living space was not an option.

The system was designed as an exterior RadonWell® installation. I had to dig through rock to reach a footing depth of roughly three feet. Working solo, and despite the amount of digging involved, the installation took about 5 hours. I wouldn’t have been able to complete this job without a RadonWell.

Pre-mitigation radon levels were 4.5 pCi/L. Post-mitigation levels dropped to 0.4 pCi/L based on the homeowner’s EcoQube monitor.

The homeowner was relieved to have a solution that fit the home’s unique constraints while achieving exceptionally low radon levels.

This home had an inaccessible crawlspace, clay soil, and three different foundation types, which limited mitigation options. We installed the RadonWell in the crawlspace and added an exterior sub-slab system using an LV175 fan to ensure adequate coverage.

The RadonWell was installed in about 3 hours with two technicians, followed by an additional 3 hours for one technician to complete the exterior system. Without the RadonWell, this installation likely would not have been possible.

Radon levels dropped from 30 pCi/L to 1.2 pCi/L.

The homeowners were thrilled with the results and pleased to have an effective solution despite the home’s complex foundation conditions.

This home was hundreds of years old, and the basement was a mix of an old slab and dirt. There also wasn’t a good exit point, so we sealed an old window and used that as the exit. I installed the RadonWell in the corner of the basement and dug a hole about 15–20 inches deep. We used an AprilAire ARN 25F radon fan for the system.

Pre-mitigation radon levels were 11 pCi/L. Post-mitigation levels came in at 3 pCi/L using a CRM from Airthings.

The full installation took about 5 hours. Without a RadonWell, this would have taken me 2–3 days, and other mitigation approaches would not have been cost-effective for this project.

The homeowner was grateful for the cost, speed of the installation, and especially the initial result.

This was the first installation of the RadonWell prototype in a crawlspace. The install was set up like a sub-slab system. I buried the prototype near the garage foundation with about 4 inches of soil on top to simplify routing. The soil was dense but dry, so I installed a high-suction AMG Eagle Extreme fan in the garage attic.

Pre-mitigation radon levels were 12.2 pCi/L, and the RadonWell reduced them to 1.4 pCi/L. The installation took 4–5 hours, compared to more than 20 hours for a traditional crawlspace encapsulation approach.

The homeowner was thrilled to achieve such a significant radon reduction without the time, expense, and disruption of a full encapsulation project.

Limited headroom in the crawlspace was the biggest obstacle. The space was divided by a stem wall with the furnace on the other side, which added to the layout complexity. I dug a 29-inch hole next to the stem wall and set the RadonWell so the top sat 18 inches below the surface. A smoke pen showed a slight air leak at the surface, so I sealed it with a layer of 6-mil vapor barrier. A week later, I found another small leak at the edge of the stem wall and sealed it with cement.

I used a Festa Eagle fan pulling 2.6 inches WC and moving 105 CFM. After 24 hours, radon dropped from 8.7 pCi/L to below 1.0 pCi/L, with lows at 0.3 pCi/L. The post-mitigation charcoal test came in at 0.8 pCi/L, and the installation took about five hours.

The homeowner said she had never seen her radon levels drop that low.

I installed a RadonWell in the crawlspace of a 1,900 sq. ft. split-level home. There was no inconspicuous place to install a sub-slab system, and the homeowner didn’t want a suction pipe visible anywhere in the house. The crawlspace had to be opened anyway, so I installed a RadonWell.

The crawlspace was pretty tight, but I was able to bury the RadonWell about 10 inches below the ground. This was the second installation of the day, and we were finished in less than 3 hours.

Radon levels were reduced from 5.1 pCi/L to 0.2 pCi/L.

The homeowner was very happy to achieve such low radon levels without having a visible suction pipe installed inside the home.

We used a RadonWell in a basement with a dirt floor. It took about 45 minutes to bury the RadonWell and another couple of hours to complete the pipe runs and install the fan.

The home’s radon levels were originally 13 pCi/L and were reduced to 0.4 pCi/L. The neighboring rental property, which sits on the same geology and had been mitigated the previous year using a traditional sub-slab system, achieved similar results at 0.3 pCi/L.

The homeowner was pleased to achieve exceptionally low radon levels with a system that was installed quickly and efficiently.