Radon Remediation Costs at Radon Solutions of WV – 2019
Radon mitigation costs an average of $1400.00 with a typical range of $900 to $1900. Most mitigation systems don’t exceed $1,500. However, large homes or those with multiple foundations or complex configurations can cost as much as $3,000. Professional testing runs $150 to $200.
Radon gas removal is common in both newer and older homes. It is a colorless, odorless radioactive gas present in all 50 states with levels varying widely, even in the same neighborhood. It forms naturally from decaying radioactive elements, such as uranium, present in the ground.
It enters through a home’s stack effect. This effect occurs when warm air rises and leaves the upper floors and attic. When the air exits, it creates a vacuum in the lower levels. This vacuum call pull air and trapped radon gases from beneath the foundation, through porous concrete and tiny cracks in the foundation.
Radon Reduction System Types and Costs
Active Sub-Slab Depressurization
Drain Tile Suction
Sealed Sump Pump Hole Systems
Passive Soil Suction Systems
Pressurization for Basement & Finished Lower Levels
Ventilation & Filtration Radon Abatement Methods
National Average $1200
Typical Range $900 – $2500
Cost data is based on EPA data.
Radon Reduction System Costs
There are two main types of mitigation systems: depressurization and lower level pressurization. Sealing the basement is another method, though it’s up to 75% less effective than the other methods. It’s best used together with depressurization or pressurization systems.
Depressurization comes in two varieties: active and passive.
Active suction, or soil depressurization, is the most common type used by professional mitigator’s and comes in a variety of sub-types discussed below. It uses a fan to create a vacuum under your foundation.
Passive depressurization is identical in every way to active depressurization minus the use of a fan. Instead of a fan, it utilizes a pipe and the home’s naturally rising air to remove harmful gases.
Radon Mitigation Costs by Type
Active Sub-Slab Depressurization or Suction $900 to $3000 Fan Creates Suction
Passive Suction $500 to $2,500 Uses Passive Stack Effect
Lower Level Pressurization $500 to $1,000 Pressurizing home
Sealing $200 to $1,500 Seals entry points
Active Sub-Slab Depressurization System Costs
Depressurization systems, also called sub-slab or soil suction, cost between $900 and $3,000. It is the most commonly used method of mitigation. These systems remove trapped gas that exists directly under the floor of basements and crawlspaces by creating a vacuum.
The systems use PVC pipe installed below the foundation or crawlspace that runs up to the roof of the house or away into a corner of your yard. It includes a continuously running inline fan along the length of the PVC. This fan creates suction under the foundation which keeps radon from finding its way in.
Different applications of sub-slab depressurization systems, such as using drain tile vs block, come at slightly varying costs.
Active Sub-Slab Suction/Depressurization System Costs
Sub-Slab $900 to $2,500
Drain Tile $900 to $1,700
Sump Hole $900 to $2,500
Block $1,500 to $3,000
Radon Mitigation System Installation Estimates
The installation cost of a mitigation system is usually a flat fee ranging from $900 to $3,000. Quoted project prices include labor. It takes anywhere from 3 to 8 hours to install a system, although finished basements or very large homes with multiple foundations may take longer.
Radon Fan or Pump Prices
Fans cost $300 to $600 or more depending on its size and power. You’ll also need a suction monitor or u-tube manometer to monitor suction for an additional $10 to $20.
The fan will run continuously throughout the year. They use an additional $30 to $300 in power annually depending on the size of fan and local power prices. They are usually quiet and installed in the attic space or at ground level for exterior installations.
Drain Tile Suction
Drain tile suction systems cost $900 to $1,700 or more. This system taps into the drain tiles that surround a house, creating a suction field under the foundation.
Basements with slab foundations located in areas with high water tables or with drainage issues often use drain tiles. Drain tiles around the perimeter of the slab offer an excellent area for suction. They can be either internal, underneath the slab, or placed around the exterior footings. Installation costs will vary depending on placement.
Sealed Sump Pump Hole Systems
It costs $900 to $2,500 to install systems that tap into existing sump pumps cracks, or holes, where the pump sits. The top of the crock is sealed completely to keep the vacuum under the foundation. Often, this type is connected to drain tile, though not all have a tile system.
Block Suction Method
Blockwall suction systems cost $1,500 to $3,000 using cinder block construction. This system creates suction within the hollow walls themselves. It is both costlier and less effective than sub-slab systems.
Passive Soil Suction Systems
Passive systems cost slightly less to install at $900 to $2,500. Passive systems work identical to active systems minus the fan. PVC runs from under the slab or in the crawlspace up through the house or exterior wall and vents above the roof. This system uses a home stack effect, pressure differentials and air currents to remove radon. Some systems include a vapor barrier or other sealant. However, since radon is much heavier than air, they are not effective in homes with high levels of radon. The good news is, upgrading these systems to active types only requires installing a fan so long as there is space to do so.
New Construction Radon Mitigation Code Requirements
Some local and state building codes require passive systems in all new construction as a preventative measure. Upgrading to an active system during the construction phase of a new home may come at a discount. Check with your general contractor for specifics.
Basement & Finished Lower Levels Pressurization
Pressurizing basements with Energy Recovery Ventilation (ERV) costs $2600 to $3,500. Energy recovery ventilation (ERV) is the energy recovery process of exchanging the energy contained in normally exhausted building or space air and using it to treat (precondition) the incoming outdoor ventilation air in residential and commercial HVAC systems. Pressurization also occurs by sealing the lower levels and blowing air into them. This process counters the vacuum of the stack effect keeping gas from entering the through the foundation.
Sealing the Home
Basement sealing costs $4,000 on average though simply caulking cracks can run as little as $300 for sealant of an unfinished basement.
Most mitigation systems work with active or passive suction devices to create a vacuum in spaces that trap gas. Sealing your home may reduce the levels slightly but works best in conjunction with other systems.
You should seal your home on a regular basis to prevent new infiltration of gas.
Radon Removal Cost by Foundation Type
Regardless of foundation type, you’ll spend an average of $1,400 on radon removal. There are three main types of foundations that require slightly different mitigation solutions: On-grade slab, below-grade slab (basement) and crawlspace.
Basements require drilling a hole or using a sump pump hole for PVC pipe installation below the ground slab.
On-grade slabs often place PVC pipe in from the exterior side of the house, though drilling through the floor is not uncommon.
Crawls spaces use an encapsulation technique with the PVC extruding from beneath a plastic membrane. Crawlspaces may take more time to install due to accessibility and therefore cost more. Actual pricing will vary significantly from home to home.
Average Cost of Radon Mitigation in Crawl Spaces
Radon membrane prices range from $900 to $3,000. Unless the crawlspace is already encapsulated, the cost will increase. Most crawl spaces have no slab, just open soil that can allow the gas to migrate into the living space.
Crawl space encapsulation costs $1,900 to $15,000 when done alone. Together with a mitigation system installation, you may get a discounted price. Plastic vapor barriers are placed across the entire area under the home and sealed along the edges.
PVC pipe is then used to create a vacuum under the membrane exactly like under-slab types. A 6, 10 or 20 ml plastic membrane is usually a part of the encapsulation process. An exterior mitigation system uses a vent to draw gas up and out of the crawl space.
Radon Water Mitigation Costs
Water mitigation by aeration or carbon filter scrubbing costs $500 to $5,000. Radon has minimal effect while in the water, but once it reaches a shower, dishwasher or tap it’s released into the air, adding to airborne concentrations.
Putting in an Aeration or Bubble Up System
An aeration system ranges from $4,000 to $5,000. They are expensive but the best way to filter water with 95-99% radon removal rates.
The Bubble-Up system, a type of aeration system, quietly works by injecting air into the water to release radon inside the unit, which then captures it and vents the gas outside.
Charcoal Scrubbing System
Charcoal scrubbers only cost between $500 and $1,500 but only remove about 75% of radon from your water. However, they also clean the water of other chemicals and metals.
Ventilation & Filtration Radon Abatement Methods
Whole-home air filtration systems cost $1,500 on average and use HEPA filters to help remove the decayed radon material but will not reduce radon levels. While air filtering is an excellent and inexpensive method to improve your air quality, it is not a substitute for professional mitigation systems.
Circulating air by opening windows and doors will not reduce radon levels and may make the problem worse. Talk to a pro about properly ventilating your crawlspace instead.
Radon Testing Kits & Smart Devices
Testing kits and smart devices range from $12 to $250. These are available through most online retailers and at some home improvement stores like Home Depot, Menards and Lowe’s.
Professional testing costs $150 to $250 so these kits may seem like an attractive way to save money. These kits and smart devices are great for screening, but don’t use them in place of a professional test.
Short-term Radon Testing Kits – $12 to $50. Great for initial screenings but with questionable results. They test for 48 to 72 hours and then sent to a lab for results.
Home Radon Digital Monitors & Smart Devices – $150 to $250. Excellent for long-term measurements and provide results more comparable to professional testing. Best for monitoring after a professional test or a mitigation system installation. They work with a simple portable digital device left in your homes lowest level
What is Radon Gas?
Radon gas is odorless and invisible to the human eye. It is a radioactive gas that occurs naturally deep within the soil. The natural decay of uranium in rock and soil deep in the earth form radon gas. All 50 states have radon, though it’s found more frequently in the Northeast, Midwest and Northern Mountain Regions.
It moves through the air and water. It has a decay life of approximately 4 days, meaning gas can build up quickly depending on ventilation.
Radon is the second leading cause of lung cancer in the United States with an estimated 21,000 preventable deaths per year according to the CDC. It’s the second leading cause among smokers or those who have smoked cigarettes and the first leading cause among non-smokers.
How Do I Know If I Have Radon in My Home or Water Supply?
The easiest way to know if you have radon in your home or water supply is to have a professional come and do a test. Radon testing costs between $150 to $250. Learn more about radon testing.
Are Radon Inspectors and Radon Treatment Professionals the Same?
Radon inspectors and treatment professionals are not the same. However, they often work out of the same office. Inspectors test your home while treatment pros install mitigation systems. Some pros play the role of both inspector and installer.
How Much Does Radon Fan Replacement Cost?
Repairing or replacing a radon fan can cost $300 to $600. The same professionals you hired to install your system are generally the ones you call for repairs.
Will Installing a Mitigation Unit Fix My Radon Problem?
Having a professional mitigation expert install a system designed specifically for your home will reduce the gas to safe levels. Improperly installed systems and DIY fixes can often make the problem worse.
How Much Electricity Does a Radon Fan Use?
The amount of electricity your radon fan uses depends on the size of the fan. For instance, the average fan will use about 876 kwh per year. Assuming the average cost of a kwh is $0.10, the annual cost will range from $30 to $300 depending on the size of the fan.
Do Open Windows Help Get Rid of Radon Gas?
Opening windows and doors does not always reduce radon levels. It’s possible to create suction through a stack effect, making the problem worse. The best and safest way to get rid of radon is an active-suction mitigation system. Talk to a pro about installation.