Reviews Summary

Radonseal.com has a 4.7 - star rating from 6 reviews, indicating a high level of customer satisfaction!

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Rating (1.0)

About company

Novion Inc., established in 1987, emerged as an innovative force in the realm of radon mitigation and concrete sealing. Recognizing the challenges faced by homeowners with high radon levels in their basements, Novion set out to pioneer high-tech solutions. Their breakthrough product, RadonSeal® Deep-Penetrating Concrete Sealer, was meticulously developed to combat radon infiltration through concrete. Novion operates from Connecticut and offers this pioneering product directly to homeowners and contractors through their radonseal.com website. Beyond radon remediation, they have expanded their range to include unique products for waterproofing basements, sealing concrete against vapor, and mold remediation. Their mission centers on providing top-quality, eco-friendly solutions that surpass store-bought alternatives, backed by expert customer support for all basement and concrete-related issues. Whether you're a homeowner, contractor, or building owner, Novion is committed to offering superior products and guidance to address your specific needs.

Key Details:

  • Location: The company is headquartered in Shelton, Connecticut, United States.
  • Founders: -
  • Foundation Date: The company was established in the year 1997.

Customer reviews

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(5.0)
Their eflorescence cleaner has small odor.
by Anonymous

Their eflorescence cleaner has small odor. It works well at fixing calcium bleeding through concrete block. I tried strong vinegar, it didn't work. Years ago I tried muriatic acid which worked about the same as RadonSeals product- but the smell was horible. I ran short on this job, so I ordered another gallon- it works.

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(4.0)
The urethane injection kit proved user-friendly
by J Demps

The urethane injection kit proved user-friendly following the provided instructions and instructional videos. The epoxy scent, contrary to some claims, was tolerable. Managing an 8-foot, 1/4-inch-wide crack posed a challenge as the epoxy quantity provided was barely sufficient, resulting in minor leakage at some ports. Despite the inconvenience, using a towel mitigated the mess. Almost exhausting the urethane, a larger kit might be advisable for longer or wider cracks. While the effectiveness remains to be seen, considering the outcome, a repurchase is likely, opting for the 20-foot kit for larger fissures.

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(5.0)
Well, I bought your sealer
by Michael K

Well, I bought your sealer repair kit to fix a cellar water wall crack at my sister's house. Everything went okay following your instructions. There was a previous surface repair attempt made several years ago that did not work. What I did was drill a hole where each surface port was to be placed. I used a 3/16" drill to a depth of about 1". The reason was from the other repair. I wanted to make sure the crack at the surface was not plugged. Also, I took a piece of drill rod about 6" in length with a diameter of .159. I put the rod through the surface port, extending it past it. Inserted it in the drilled holes I made. I slid the surface port forward. It acted as an alignment gauge. What I did not like about the kit is the epoxy used to attach the surface ports and seal the surface crack. The working time to use it is way too short. I realize you need something that works fast to hold the ports in place. The bottom line is, did the repair work? There has to be a heavy downpour of rain or after winter with a spring thaw to find out.

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(4.0)
On-time delivery
by David

On-time delivery, actually arrived within two days to Florida... The product's seal was easy to apply, but I'm still waiting to see how effective it is.

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(5.0)
I've made multiple orders in the past year
by Jeffrey Devore

I've made multiple orders in the past year, and I'm impressed every time. I'm planning to purchase more in the near future. I also happily recommended your products to our pool contractor. Your quality stands out.

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(5.0)
The ordering process was straightforward
by James Tinsley

The ordering process was straightforward, and the instructions proved successful in significantly lowering our radon levels by sealing the crack. I'm impressed with this product's efficacy and will rely on it for any future requirements.

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