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Discover the average indoor air quality testing cost, what impacts pricing, and how to budget for healthier air in your home.
How Much Does It Cost to Replace a Radon Fan? [2025 Data]
Normal Range: $200 - $600
Radon fan replacement costs $350 on average, with most homeowners paying between $200 and $600. Your price depends on fan type, labor, and system complexity.
How we get this data
Photo: 5m3photos / Moment / Getty Images
Photo: 5m3photos / Moment / Getty Images
Cost Insights
Replacing a radon fan improves home safety and air quality.
Fan type, labor rates, and system access are the top factors that affect your total replacement cost.
Professional installation costs $50 to $150 per hour and ensures compliance with local codes.
Regular replacement maintains effective radon mitigation.
Upgrading to energy-efficient fans can increase costs by up to $650, but can lower long-term utility costs.
This article was created using automation technology and thoroughly fact-checked and edited by an Angi Editor in accordance with our AI policy.
The average cost of radon fan replacement averages $350, with most homeowners spending between $200 and $600 for a standard replacement. Prices vary based on the type of fan, labor rates, and system complexity. While there’s no per-square-foot cost, the total depends on your mitigation setup and any additional work required.
Radon mitigation is crucial for a healthy home, and a working fan is the backbone of your system. This guide covers the factors that impact the cost, how to budget, and what to expect when replacing your radon fan.
Cost by Size of Radon Fan Replacement
The size of your radon fan, measured in cubic feet per minute (CFM), directly affects replacement cost. Smaller fans are enough for homes with lower radon levels or simple radon mitigation systems. Larger homes, higher radon concentrations, or systems with multiple suction points often require more powerful fans, which cost more to purchase and install.
A single-fan system is standard for most residences, but multi-fan setups or commercial properties drive up costs. The complexity of your system, including the number of suction points and the length of vent piping, can also add to the final bill. Commercial systems, given their scope and regulatory demands, are the most expensive to replace.
| Fan Size/Type | Description | Average Replacement Cost |
|---|---|---|
| Low CFM (50–100) | Small homes, single suction point | $200–$350 |
| Standard CFM (100–200) | Average-sized homes, typical radon levels | $300–$500 |
| High CFM (200–300) | Large homes, high radon, or complex systems | $400–$600 |
| Multi-fan | System Large/commercial buildings, multiple suction points | $600–$1,200 |
Radon Fan Replacement Cost by Type
Radon fans come in several types, each with unique installation requirements and cost implications:
Inline fans are commonly mounted along the vent pipe.
Exterior fans are installed outside the home.
Attic-mounted models are tucked away.
Low-profile fans fit in tight spaces.
Each type has pros and cons that affect labor time, noise, and longevity. Noise-reducing and energy-efficient models often cost more up front but can pay off over time with lower operating costs.
Brand and model selection can also influence price and warranty coverage. Installation complexity varies, with exterior and attic-mounted fans sometimes requiring more time or specialized labor.
| Fan Type | Pros | Cons | Average Replacement Cost |
|---|---|---|---|
| Inline | Easy to access, standard install | Moderate noise, visible | $250–$400 |
| Exterior | Quieter indoors, less visible | Exposed to weather, may need cover | $300–$500 |
| Attic-mounted | Quiet, hidden from view | Harder access, higher labor costs | $400–$600 |
| Low-profile | Fits small/tight spaces | Lower airflow, less common | $350–$550 |
| Energy-efficient | Lower utility cost, quieter | Higher upfront price | $400–$650 |
Radon Fan Replacement Cost by Location
Radon fan replacement cost varies depending on your location and the specific location of the fan installation within your home. Labor rates are higher in urban areas and regions with a higher cost of living. Certified radon mitigation professionals may be less available in rural areas, which can also affect pricing.
Installing or replacing a fan in an attic or crawl space within your home costs more due to accessibility challenges. Exterior installations might require weatherproofing or custom enclosures, adding to the bill. Always factor in additional charges for hard-to-reach or customized setups.
Radon Fan Replacement Cost Factors
Several elements influence radon fan replacement cost, and understanding them helps you budget wisely.
Labor
Radon mitigation specialists and HVAC pros are the main experts for this task. Labor rates often range from $50 to $100 per hour, with minimum service fees. Complex systems, difficult access, or electrical upgrades can increase labor time and cost. Labor includes removing the old fan, installing the new one, and post-installation radon testing.
Permits
Some municipalities require permits for radon fan replacement, especially if electrical work is needed. Permit fees range from $25 to $150, depending on location. Inspections may add extra costs, but skipping permits can lead to code violations or insurance issues.
Additional Features
Opting for energy-efficient or quieter fans increases upfront cost but can save money in the long run. Adding system monitors or alarms provides extra safety but comes with added expense. Custom enclosures for exterior fans and electrical upgrades for newer models also impact the final price.
Installation Add-Ons
Several factors can impact your installation costs, including:
System complexity, such as multiple suction points or older mitigation setups, can raise costs.
Accessibility issues (tight spaces, high ceilings, crawl spaces) make replacement more labor-intensive.
Site preparation, including clearing obstacles and prepping mounting surfaces, may add to the bill.
Fees for post-installation cleanup, debris removal, or specialized design consultations can apply.
Required retesting of radon levels after replacement, which often costs between $20 and $100.
Additional Costs to Consider
Radon fan replacement isn’t just about the fan and labor—you’ll want to plan for warranties, operating costs, maintenance, taxes, and possible insurance impacts.
Warranties
Most new radon fans come with manufacturer warranties lasting three to five years. Extended warranties are available for an additional $20 to $50. Some installers offer a labor warranty, which can be helpful if issues arise. If your old fan is still under warranty, check if replacement is covered.
Operating Costs
A radon fan’s electricity use adds $30 to $75 to your annual utility bill. Energy-efficient models can cut this amount by 10 to 30%. Fans designed for continuous operation cost more to run than those operating intermittently.
Maintenance
Routine cleaning and inspection are minimal but important. A well-maintained fan lasts 5 to 10 years. Maintenance costs are low—often just the price of a periodic radon test ($20 to $100). Emergency repairs can be more expensive, so regular upkeep is key.
Taxes
Sales tax on the fan and labor varies by state, adding 5% to 10%. Some states tax only materials, while others tax the entire service.
Insurance
Homeowner’s insurance rarely covers radon fan replacement unless it results from a covered peril. Some insurers may offer premium discounts for homes with a maintained radon mitigation system. Always hire a certified pro to meet any insurance requirements.
DIY Radon Fan Replacement vs. Hiring a Pro
You can save on labor by replacing a radon fan yourself, but DIY comes with risks and responsibilities. Expect to spend $150 to $350 on the fan, tools, and materials. You’ll need basic electrical and plumbing skills, along with safety gear. Mistakes can lead to system failure, code violations, or health hazards from elevated radon.
Professional replacement costs more, but ensures proper installation, code compliance, and peace of mind. DIY may be feasible for those with home improvement experience, but hiring a local radon remediation pro is recommended for complex systems or if you’re unsure about the process.
| Method | Total Cost | Pros | Cons |
|---|---|---|---|
| DIY | $150–$350 | Saves on labor, flexible timing | Risk of improper install, safety/code concerns |
| Professional | $250–$600 | Expert installation, warranty, and compliance | Higher upfront cost, must schedule with a pro |
Radon Fan Replacement vs. Repair
Knowing when to repair or replace your radon fan can save money and maintain system reliability. Minor electrical issues or loose wiring are often repairable. However, if the motor fails, the fan is old, or breakdowns are frequent, replacement is the better choice. If repair costs exceed 50% of the replacement cost, it’s best to invest in a new fan.
Repairs cost $75 to $200, while complete replacement runs $200 to $600. Repairing can be less expensive in the short term, but it may not address underlying issues, which risks future breakdowns. Replacing ensures reliable performance and keeps your home protected from radon.
Does Radon Fan Replacement Add Value to Your Home?
Replacing a radon fan directly improves your home’s safety and can enhance its marketability, especially in regions where radon is a known concern. The ROI comes from peace of mind, health protection, and compliance with safety standards—factors that buyers highly value. Compared to other air quality or safety upgrades, radon mitigation offers a strong return, especially for families concerned about long-term health.
Value is influenced by how well the system is maintained, the efficiency and quietness of the new fan, and whether the upgrade meets modern standards and codes. A reliable radon system is a selling point for health-conscious buyers.
Tips to Reduce Costs While Replacing a Radon Fan
Here are some helpful tips to reduce your radon fan replacement costs:
Get multiple quotes from certified radon mitigation professionals.
Choose a fan model that matches your home’s needs—avoid overpaying for unnecessary features.
Schedule replacement during off-peak seasons for potential labor discounts.
Perform simple prep work yourself (clearing access, removing obstructions).
Regularly maintain your system to extend fan lifespan and avoid emergency replacements.
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.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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