Radon mitigation professionals near you

Common signs that indicate it’s time for radon mitigation services include:

• A high test result. Radon gas is invisible and odorless, so a test is the only way to know your home’s levels. If a test shows a level of four picocuries per liter (pCi/L) or higher, the EPA recommends taking action.

• Your home’s location. If you live in an area known for high radon levels (what the EPA calls a Zone 1 area), it’s a strong signal to test your home and consider mitigation.

• A real estate transaction. Radon testing is a common part of home inspections. If you’re buying or selling and the test comes back high, mitigation is often the next step.

• Recent home updates. Major renovations, new windows, or changes to your heating and cooling system can alter the air pressure in your home, which can sometimes pull in more radon from the ground.

• Family health history. If a non-smoker in your household has been diagnosed with lung cancer, it’s important to test your home for radon, as it can be a leading cause of the disease.

During your pro’s visit, you may expect them to start by inspecting your home’s foundation and layout to find the best spot for the mitigation system. They’ll often explain the plan to you, including where the pipes will run and how the system will vent the radon gas safely outside. The installation itself usually involves drilling a small hole in your foundation, sealing any cracks, and fitting a fan and vent pipe. After the system is installed, your pro may also explain how to perform a follow-up test to confirm that radon levels have been successfully reduced.

Radon mitigation typically involves installing a system that reduces radon gas levels inside a home to make the indoor air safer. Common radon level mitigation techniques include:

• Sub-slab depressurization: The most common method, using a vent pipe and fan to draw radon from beneath the foundation and release it safely above the roofline.

• Sealing cracks and gaps: Closing foundation openings to help improve system efficiency.

• Vent pipe installation: PVC piping runs from beneath the slab, crawl space, or basement to the exterior.

• Fan installation: A specialized radon fan creates continuous suction to redirect gas outdoors.

• Post-installation testing: Follow-up radon testing confirms levels have been reduced.

A certified radon mitigation professional designs the system to meet safety standards and ensure long-term performance.

Taking these steps can help you find the right radon mitigation service:

• Verify their credentials and insurance: Look for a professional who is certified by the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB). They should also carry general liability insurance. Keep in mind that specific licensing requirements vary by region.

• Get several estimates: A detailed estimate should outline the proposed mitigation system, the total cost for installation, and the guaranteed post-mitigation radon level.

• Read their reviews: Positive reviews often mention professionalism, clear communication, and successfully lowered radon levels. Red flags can include complaints about messy installations or radon levels that remained high after the work was done.

• Look at their portfolios: Check for photos of past projects. The system’s piping should be sealed correctly and installed neatly, without looking obtrusive or sloppy.

• Find out if they have warranties: Many pros guarantee their system will reduce radon to a specific level, often below the EPA’s action level of 4.0 pCi/L. They may also offer a warranty on the fan, which is the system's main active component.

• Ask important questions: Before hiring, ask, “What post-mitigation radon level do you guarantee?” and “What kind of warranty do you provide for the fan and other parts of the system?”

It usually takes a few hours for a professional to install radon mitigation systems. Factors that may impact this timeline include:

• Foundation type: The kind of foundation your home has, such as a basement, slab-on-grade, or crawl space, will influence the installation method.

• Home size and layout: Larger homes or those with complex layouts may require more extensive piping to create adequate suction.

• System design: The specific design of the mitigation system, including the fan location and vent pipe route, can add or reduce time.

• Accessibility: Difficult-to-access areas for installation, like a tight crawl space or a complex attic, can extend the project's duration.

• Foundation condition: The pro may need extra time to seal cracks or other openings in your foundation to ensure the system works effectively.

Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.

The cost of radon mitigation depends on a range of factors, including:

• Home size and foundation type: The size of your home and its foundation — whether it’s a basement, a slab-on-grade, or a crawl space — are the biggest drivers of cost. Larger homes or those with multiple foundation types may require a more complex system.

• Initial radon levels: If pre-mitigation testing shows very high radon concentrations, your system may require a more powerful fan or additional suction points to effectively lower the levels.

• System design and pipe routing: The path the vent pipe takes from your foundation to the roofline can influence the price. A simple route through a garage or along an exterior wall is typically less expensive than a concealed route through finished closets and an attic.

• Crawl space encapsulation: If your home has a dirt or gravel crawl space, it will likely need to be sealed with a heavy-duty plastic barrier. This process adds to the total material and labor costs.

• Site conditions: Factors like a high water table, extremely tight soil like clay, or difficult-to-access installation points can make the job more complex and may increase the final cost.

Before your pro arrives to perform radon mitigation services, take these steps to ensure a safe and efficient appointment:

1. Step 1: Clear the work area. Your pro will need easy access to the lowest level of your home, so move any boxes, furniture, or stored items at least five feet away from the installation site.

2. Step 2: Ensure access to power. The system’s fan requires electricity, so make sure the pro knows where the nearest accessible outlet or circuit breaker is located.

3. Step 3: Keep children and pets away. For their safety and to avoid disruptions, it’s best to keep children and pets out of the work area during the installation.

4. Step 4: Plan the pipe route. The pro will likely run a vent pipe from your home’s foundation to the outside, so discuss the best location for it before work begins.

5. Step 5: Ask questions beforehand. If you have any concerns about the process or where components will be placed, talk to your pro before they start to ensure everything goes smoothly.