How Much Does Radon Remediation Cost? [2025 Data]

This article was created using automation technology and thoroughly fact-checked and edited by an Angi Editor in accordance with our AI policy.

Radon remediation costs average $1,000, with most prices ranging from $800 to $1,300. Costs depend on your home’s size, foundation type, and the mitigation system installed. Homeowners pay $400 for a standard system, with larger or more complex homes reaching up to $2,500. 

Understanding radon remediation cost helps you make informed decisions about your home’s safety. In this guide, we’ll break down the factors that impact price, explore ongoing costs, and provide practical tips to help manage expenses.

Radon Remediation Cost Factors

Let’s look at what drives the cost of radon remediation, from system types to labor and prep work.

Types

The type of radon remediation system you need is one of the biggest cost factors. Sub-slab depressurization is the most common and effective for homes with basements or slab foundations. Other types include drain-tile suction (ideal for homes with drain tiles), crawl space mitigation (using venting or encapsulation), and block wall suction for homes with hollow block walls.

Active systems rely on a fan to draw radon out, while passive systems use natural air movement. Active systems are more effective but cost more to install and operate. The right system depends on your foundation—homes with basements or slabs often need sub-slab systems, while those with crawl spaces require specialized approaches.

Size

The size of your home directly affects the cost of radon remediation. Larger homes often require more suction points or longer piping runs, which increases both material and labor costs. A multi-story home or a large basement requires a more extensive system, with the foundation layout and number of rooms also playing a role.

Materials

Materials make up a significant portion of the cost of radon remediation. Essential components include a radon fan, PVC piping, sealing materials, and monitoring devices. Upgrades such as higher-quality fans or digital detectors can increase the price. Optional features, such as aesthetic vent covers or alarms, add to the total.

Labor

Certified radon mitigation contractors handle installation of remediation systems. Labor is often billed as a flat fee based on the size of your home and the type of system you require.

Complex installations, tight crawl spaces, or homes needing extensive prep work can increase labor costs. In most cases, labor is bundled into the system installation quote. Costs also vary by region, with urban areas or high-demand markets trending higher.

Prep

Before installation, your contractor will test radon levels and inspect your home’s foundation. Pre-installation testing costs $15 to $200, depending on the type of test. Prep work may involve sealing foundation cracks, relocating appliances, or making electrical modifications. Homes with crawl spaces or unfinished basements may require additional site prep, which can add $100 to $500 to your bill.

Additional Cost Factors

Several other factors can impact radon remediation cost:

• Permit and inspection fees: Local authorities may require permits, which cost $50 to $200, and a final inspection.

• Post-installation radon testing: Verifying system effectiveness costs $50 to $200.

• Additional features: Noise-reducing fans, decorative vent covers, or custom alarms can add $50 to $400.

• Removal of old systems: If you’re upgrading, removing outdated equipment can cost $100 to $300.

• Post-installation cleanup: If foundation work is extensive, cleanup may add $50 to $150.

• Foundation repairs: Addressing cracks or water issues can add $200 to $1,000 to the cost.

• Electrical upgrades: Dedicated circuits for new fans may run $100 to $300.

Radon Remediation Ongoing Costs

After installation, ongoing costs are minimal but important for long-term effectiveness and keeping radon out of your home.

Maintenance

Routine maintenance includes inspecting the fan, checking seals, and replacing filters or alarms as needed. A professional inspection is recommended every one to two years. DIY maintenance is possible for some tasks, saving on service fees. However, certain repairs are best left to professionals.

Operating Costs

Active systems use a small amount of electricity, which may add to your monthly utility bill. Battery replacements for alarms or monitors cost between $10 and $30 per year. Professional radon testing is recommended every few years to ensure ongoing safety, costing $100 to $200.

Repairs

Common repairs include replacing a faulty fan, fixing pipe leaks, or upgrading monitoring devices. Watch for warning signs, such as increased radon levels or unusual system noises that indicate the need for service.

Insurance

Standard homeowners insurance does not cover radon remediation or related repairs. Some insurers offer add-on coverage for mitigation work, which can cost an additional $25 to $100 per year. After mitigation, you may qualify for discounts on your insurance premium. Always document your remediation with receipts and post-installation inspections for future claims or sales.

Why You Should Hire a Radon Remediation Pro

DIY radon remediation can save around $400 to $1,500 if you purchase a simple system instead of booking a professional, but improper installation can result in unsafe radon levels and failed building inspections.

Hiring a local radon remediation contractor ensures the system’s effectiveness and code compliance, plus it provides the documentation you’ll need for resale. Professional installation is especially important if your home has high radon levels or a complex layout.

Here’s why it’s ideal to hire a radon remediation pro

Radon remediation is a highly technical process that’s best left to the pros. Here’s why a professional radon remediator is ideal:

• Certified radon contractors design systems that meet state and EPA guidelines.

• Pros test radon levels before and after installation to ensure the system works properly.

• Licensed contractors ensure your system passes local inspection and resale documentation requirements.

• Pros handle permits, electrical upgrades, and post-installation verification.

If you want to DIY radon remediation

If you’re still looking to save on labor, here are a few safer DIY tips:

• Purchase a home radon test kit for $15 to $50 to assess current levels before taking action

• Seal visible cracks and gaps in your basement or slab to reduce minor infiltration

• Schedule a professional inspection afterward to confirm your home’s air quality meets EPA standards

Cost of Common Radon Remediation Add-Ons

Add-ons help improve performance or convenience, but increase radon remediation costs. Common upgrades include digital radon monitors, additional suction points, and encapsulation of the crawl space.

Ways to Save While Addressing Radon Remediation

Here are a few helpful tips that can help reduce the cost of radon remediation:

• Get multiple quotes from certified radon mitigation contractors to compare value and services.

• Select the most suitable system type for your home’s foundation to prevent overspending on unnecessary features.

• Do some prep work yourself, such as moving furniture or sealing minor cracks, before the contractor arrives.

• Bundle radon remediation with other home improvement projects to save on labor and permit fees.

• Schedule installation during off-peak seasons, when contractors may offer discounts.

• Maintain your system regularly to prevent costly repairs or replacements down the line.

• Consider energy-efficient fans to lower your system’s long-term operating costs.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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