Comprehensive Radon Testing in Cascade

It's recommended to hire a certified professional. Improperly installed systems can be ineffective or even counterproductive, potentially drawing in soil gases or creating pressure imbalances. Most states have certified radon mitigation contractors who follow EPA guidelines and can guarantee effective results.

There is technically no "safe" level of radon, but the EPA recommends taking action to reduce radon in your home if levels reach 4 pCi/L or higher. The average indoor radon level in the United States is approximately 1.3 pCi/L, while outdoor air typically measures around 0.4 pCi/L.

Before testing, you should maintain "closed-house conditions" for at least 12 hours prior to and during the test. This means keeping windows and doors closed except for normal entry and exit, and not operating fans or ventilation systems that draw outside air into the home. Avoid placing the test device near drafts, exterior walls, or high-humidity areas like bathrooms, as these conditions can affect accuracy.

Yes, radon can enter a home through water, particularly from private wells that draw from groundwater sources in contact with uranium-bearing rock. When radon-containing water is used for showering, washing dishes, or running faucets, the gas is released into the indoor air.

However, the EPA estimates that waterborne radon contributes far less to overall indoor radon levels than soil gas entry, accounting for only about 1–2% of total indoor radon in most cases.

Yes, radon can enter a home through water, particularly from private wells that draw from groundwater sources in contact with uranium-bearing rock. When radon-containing water is used for showering, washing dishes, or running faucets, the gas is released into the indoor air.

However, the EPA estimates that waterborne radon contributes far less to overall indoor radon levels than soil gas entry, accounting for only about 1–2% of total indoor radon in most cases.

Radon testing is strongly recommended as part of any home purchase and is required by law in some states. Buyers should request radon testing during the inspection period, as elevated levels can be a negotiating factor and should be disclosed by sellers in many jurisdictions. Discovering and addressing a radon problem before closing protects both the buyer's health and their financial investment.