How Much Does Radon Remediation Cost? [2025 Data]
The average radon remediation cost is $1,000, with most homeowners paying between $800 and $1,300, depending on system type, home size, and labor.
Radon remediation involves installing systems that lower radon gas levels in your home, keeping your indoor air safe.
The primary factors influencing cost are system type, home size, and labor rates in your area, with materials such as fans and piping also contributing to the overall cost.
There are several types of radon remediation systems available, ranging in price from $500 to $2,500.
Addressing radon now helps prevent long-term health risks, and minimal ongoing maintenance keeps your system effective.
For best results and compliance with local codes, consider investing in a certified radon mitigation service.
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.
| System Type | Standard Application | Average Cost Range |
|---|---|---|
| Sub-slab depressurization | Basement, slab-on-grade | $500–$2,500 |
| Active system (fan-powered) | Most foundations, higher radon | $800–$1,300 |
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.
| Home Size (Sq. Ft.) | Recommended System | Average Cost |
|---|---|---|
| Up to 1,500 | Single suction point system | $800–$1,200 |
| 1,500–2,500 | Multiple suction points | $1,200–$2,000 |
| 2,500–4,000 | Multi-point or dual systems | $2,000–$3,000 |
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.
| Material/Component | Purpose | Average Cost Range |
|---|---|---|
| Radon fan | Drives air out of home | $100–$350 |
| PVC piping | Channels radon gas outside | $50–$200 |
| Monitoring device | Tracks radon levels | $100–$300 |
| System alarm | Alerts for fan failure | $50–$150 |
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.
| Maintenance Task | Frequency | Cost Range |
|---|---|---|
| Fan inspection | Every 1–2 years | $50–$150 |
| Seal resealing | Every 2–5 years | $30–$100 |
| Monitoring device | Annually | $100–$300 |
| Professional checkup | Every 2 years | $100–$200 |
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.
| Repair Type | Average Cost | Frequency |
|---|---|---|
| Fan replacement | $150–$350 | Every 5–10 years |
| Pipe repair/leaks | $50–$200 | As needed |
| Monitor replacement | $100–$300 | Every 5–7 years |
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.
DIY Radon Remediation vs. Hiring a Pro
DIY radon remediation costs are lower upfront, but they carry risks. Home test kits cost between $15 and $50, and the basic materials for a simple system can total between $300 and $700. You’ll also need tools, permits, and time—installation takes several hours to a full weekend. However, improper installation can lead to ineffective mitigation, code violations, and reduced home value.
Hiring a local radon remediation contractor may cost more, but it ensures system effectiveness, compliance, and documentation necessary for resale. Professional installation is strongly recommended if your home has high radon levels or a complex layout.
| Approach | Average Total Cost | Pros | Cons |
|---|---|---|---|
| DIY | $400–$1,000 | Lower upfront cost, flexible timing | Risk of improper install, safety issues |
| Professional | $800–$2,500 | Guaranteed effectiveness, documentation | Higher cost, must schedule with contractor |
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.
| Add-On | Purpose | Average Cost Range |
|---|---|---|
| Digital radon monitor | Real-time radon tracking | $100–$300 |
| Secondary suction points | For large/complex homes | $300–$800 |
| Crawl space encapsulation | Reduces radon entry, moisture control | $1,500–$4,000 |
| Sump pump cover/upgrade | Seals sump pit, improves system | $100–$400 |
| Decorative vent cover | Improves exterior appearance | $50–$200 |
| Noise reduction features | Quiets exterior fan | $100–$400 |
| Annual maintenance contract | Covers inspections, minor repairs | $100–$300/year |
| Air quality monitoring | Tracks multiple indoor pollutants | $200–$500 |
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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