Understanding Radon: The Silent Threat in Your Home

Name: Airduct Cleaning & Radon Co.
Address: 1251 S Front Ste B, Columbus, OH, 43206, United States
Telephone: 614-799-8530

Your home should be a place of safety and security. Its primary purpose is to provide shelter and protection from the outside. Unfortunately, there are many dangers that can be hidden inside your home. One particularly common threat is completely undetectable to human senses: radon.

Radon is the leading cause of lung cancer among non-smokers, causing roughly 21,000 deaths every year. The only way you can determine whether your home has radon is to test for it actively. But before we get into that, it’s important to understand what radon is and how it gets into your home.

What is Radon?

Radon is a naturally occurring element that takes the form of an odorless, colorless gas. Trace amounts of radon can be found in most of the air around us. At these small levels, radon is harmless. However, radon can be very dangerous if it becomes more concentrated. Read more about radon by visiting the EPA website.

Radon can enter homes through cracks in the foundations, holes in walls, and other such areas. Over time, it can build up to dangerous amounts, often in basements, crawlspaces, and other cramped areas.

However, radon buildup can still occur even if your home doesn’t have a basement or crawlspace. The only way you’ll know if there are unsafe amounts of radon in your home is to have your home tested.

Testing Your Home for Radon

Thankfully, testing a home for radon is relatively easy. Test kits can be purchased online or at a local store. Alternatively, you can call a professional and have them checked. If radon levels are too high, radon mitigation must be performed immediately.

Don’t put off checking your home for radon. Every home and building should be tested every 2-5 years.

Some areas are at greater risk than others. Northern, landlocked states like Ohio have the highest radon levels in the US. For radon mitigation in Dayton, Ohio, and the surrounding communities, contact Air Duct Cleaning today!

Frequently Asked Questions About Radon Testing Before Basement Renovation

How long does radon testing take, and when should I do it?

Short-term tests typically run for 48 to 96 hours. That’s enough to get a clear baseline before renovation. If you're on a tight timeline, we offer same-day professional radon testing, using calibrated digital monitors with faster turnaround and higher accuracy.

🛠️ Pro Tip: Schedule your test at least a week before framing or insulation begins — that gives you time to take action if mitigation is needed.

Will finishing my basement make radon levels worse?

Often, yes. Finishing a basement reduces natural ventilation, seals air pathways, and creates negative pressure zones — all of which can trap radon gas inside. We frequently see radon levels double or triple after renovation.

If you plan to install drywall, flooring, or closed-cell insulation, test first. It's much harder to retrofit a system once the space is finished.

Do newer homes still need radon testing?

Absolutely. In fact, newer energy-efficient homes are often more airtight, which can amplify radon accumulation.
Radon isn’t about age — it’s about soil conditions, slab construction, and airflow. We’ve mitigated brand-new builds in Columbus that tested over 10.0 pCi/L before occupancy.

How often should I test for radon in a finished or remodeled basement?

The EPA recommends testing every 2 years, but after a basement remodel, you should test immediately after the work is complete — even if you tested beforehand.

🎯 And if you already have a radon mitigation system, make sure to re-test after any HVAC upgrades, insulation changes, or new construction that may affect airflow.

What is a safe level of radon gas before finishing a basement?

Below 2.0 pCi/L: No action needed — considered low risk.
2.0 to 3.9 pCi/L: Consider mitigation, especially if children live in the home.
4.0+ pCi/L: The EPA’s action threshold. Mitigation is strongly advised.

🔎 We’ve seen plenty of “borderline” homes spike to dangerous levels after finishing — so if you're anywhere near 4.0 pCi/L, don't wait.

Final Takeaway: Test First, Then Build

The only way to ensure a safe renovation is through early detection. Testing for radon before finishing your basement isn’t just smart — it’s essential.

Call (614) 799-8530 to schedule a professional radon consultation Licensed. Proven. Local. - Get answers before you build — and breathe cleaner air afterward.

Serving Columbus, Dayton, Springfield, Cincinnati, and all of Central Ohio

Call [614-799-8530]airduct-cleaning.com