How Much Does It Cost to Replace a Radon Fan? [2024 Data]
Normal range: $110 - $600
The average radon fan replacement cost is $300 with a range of between $110 and $600. The total price depends on the parts needed, labor, and whether additional work is necessary.
If your home has a radon mitigation system, keeping the fan operational is crucial. The average radon fan replacement cost is $300, but it can be as little as $100 for a basic fan or as high as $3,000 for a complete overhaul of a large mitigation system. Here are the factors that will affect the price of your radon fan replacement.
- Average
- $300
- Low end
- $100
- high end
- $3,000
Radon Fan Replacement Cost Factors
The most effective way to get rid of radon is to have a specialized system in place for the task. If your home has a radon mitigation system installed, it will be one of two types. Passive systems often lack a fan that you have to monitor and keep operational. However, some passive systems include a small booster fan installation. Active radon mitigation systems are more powerful and require an inline fan to be effective.
The active-system fan is the only moving part in a radon system, and keeping it in working order is mandatory for the system to function properly. If your radon fan isn't working or is due for replacement due to its age, a few pricing factors will come into play.
Type of Repair
Replacing a radon system fan is more cost-effective than repairing one. Radon fans of all types and sizes are installed directly into the vent stack, removing the gas below the house and sealing it within the pipe. This means that the labor cost of opening the system, diagnosing the problem, and repairing the fan is often more costly than simply replacing it.
Fan Parts
Radon fans have a typical life span of between five and 10 years, and the fan must run continuously 24 hours a day to be effective, so budgeting for its eventual replacement is essential. Expect to spend between $100 and $200 for parts alone and between $110 and $600 total, including labor, every few years to replace the fan when needed.
Additional Parts
Depending on the layout of your system, the act of replacing the fan may require adding in the cost of a few additional parts. Pipe fittings, adhesives, adapters, or clamps will add between $10 and $50 to the job cost when replacing the fan.
Size of Radon Fan
The size of your home's radon mitigation system fan is a bit of a misnomer. The difference in fan sizes is more about its power level than physical size. Three basic sizes are available, including low suction or airflow, moderate, and high suction with low airflow versions. The construction of your system and the soil characteristics of the ground beneath your home determine which one you need. Replacing your fan with the correct size is essential for maintaining the system's functionality.
| Fan Size | Average Cost Range (Fan Only) |
|---|---|
| Low suction | $100–$230 |
| Moderate suction | $130–$250 |
| High suction | $150–$350 |
Type
There are two basic types of radon fan configurations. The first is the standard type, which is all about function and not as much about appearance. The second is the low-profile version that performs the same task while having a more discreet appearance. Low-profile fans cost significantly more to purchase on average. Also available are passive radon system booster fans, which cost less but aren't as powerful as the ones used for active systems and are only for use in passive systems.
| Fan Type | Average Cost Range |
|---|---|
| Standard Inline | $100–$350 |
| Low profile | $150–$500 |
| Passive system booster | $60–$110 |
Ongoing Costs
Your radon fan must run continuously for the system to be effective, which means there are ongoing electrical costs associated with it. The more powerful your radon fan is, the more it will cost to operate and replace it when the time comes. Some radon mitigation companies offer annual maintenance plans, costing between $10 and $20 per month, that make sure your system is operating properly through regular inspections and service.
| Radon Fan Type | Average Annual Electricity Cost |
|---|---|
| Low suction | $20–$35 |
| Moderate suction | $60–$150 |
| High suction | $100–$180 |
Labor
Labor will represent between $50 and $110 per hour of your radon fan replacement cost. However, the cost will be part of your pricing estimate for the job. Fluctuations based on the labor cost in your area and the experience level of your contractor are the primary factors that set the labor price.
Access
Depending on your home's layout and the solution devised by the original radon system installer, your radon fan may be outdoors at a reachable height, in the attic, or in the garage. While the location of your fan has little to do with the cost of replacing it, access to the space it's in can affect the price of the work. Expect to spend up to the cost of an additional hour of labor if your fan isn't easily accessible by the technician.
Additional Repairs or Services
While you're having your radon fan replaced is a good time to consider other radon-related tasks to ensure your system is performing at its best. If radon testing indicates that a more robust solution is necessary, revamping the entire system could cost up to $3,000. Here are other associated cost averages.
Radon testing cost: $145–$715
Indoor air qualify testing cost: $290–$585
Foundation repair cost: $2,220–$8,115
Crawlspace encapsulation cost: $5,000–$15,000
Radon Fan Repair vs. Replace
Your home's radon fan is sealed to and within the mitigation system. Whether you're repairing or replacing the fan, you'll still need to open the system to access the fan motor.
Because the cost of a replacement fan is roughly the same as the cost of diagnosing and repairing an existing fan, most homeowners choose to replace a malfunctioning fan with a new one instead of trying to fix a problem with the existing one.
Purchasing a new fan represents an immediate solution and provides you with a fresh manufacturer's parts warranty, lasting from one to five years, which repair work doesn't include.
DIY Radon Fan Replacement vs. Hiring a Pro
Radon testing is necessary to determine the presence of the substance in your home. Because of the system's importance and the risk of having radon present in the house, homeowners shouldn't install their own radon systems.
Avid DIYers with experience dealing with radon systems can replace their own system fans. Knowing how to install the entire system isn't necessary to accomplish the task. However, because the cost of hiring a professional to replace a radon fan is reasonable, most homeowners choose the safer route of hiring a nearby radon expert to handle the job. Doing so eliminates any worry that the system won't perform as it needs to after the work is complete.
Tips to Reduce Cost While Replacing a Radon Fan
If your home needs it, having an operational radon fan in your system at all times is crucial to your family's health. For this reason, your radon mitigation system and its components aren't a good place to cut corners on costs. While you can search for lower-priced fan models or brands, the difference between the lowest and highest prices for the type and size of fan you need will be minimal.
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 costquotes@angi.com. Quotes and personal information will not be shared publicly.
Frequently Asked Questions
Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.
Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.