Our model puts a standard system for a 1,800-square-foot Ohio basement home at $1,450 to $2,450, with a midpoint near $1,850. This September 2026 planning estimate applies Ohio’s 2024 overall price level to the site’s national model. A site inspection can move the quote outside that range.
Calculate an Ohio planning range
Change the size, foundation, number of stories, and pipe route. The calculator keeps Ohio’s state adjustment fixed at 7% below the U.S. average. It does not use the radon reading to raise the price because the reading alone does not determine system complexity.
Three worked Ohio examples
These examples use the same inputs shown in the calculator. They are useful for checking the order of magnitude of a quote, but they do not replace pressure-field testing or an inspection of the foundation.
| Example home | Model setup | Ohio planning range | Midpoint |
|---|---|---|---|
| 1,800 sq ft basement home | 2 stories · standard pipe route | $1,450 to $2,450 | $1,850 |
| 1,600 sq ft crawl-space home | 1 story · standard pipe route | $1,450 to $2,450 | $1,850 |
| 2,400 sq ft mixed-foundation home | 2 stories · complex pipe route | $2,150 to $3,700 | $2,750 |
Table reviewed September 3, 2026. Figures are model outputs rounded to the nearest $50.
What can change an Ohio quote
Ohio’s price-level adjustment is modest compared with the difference between a simple installation and a difficult one. A basement with a clear exterior pipe route may need one suction point. A house with a basement addition, slab, and crawl space may need separate collection areas, more sealing, or a membrane over exposed soil. Finished rooms can also lengthen the pipe route or require repair work after the pipe is concealed.
Ask the installer to separate optional finish work from the core system price. Electrical work, permit fees, condensate controls, fan noise accessories, and decorative pipe covers may be included by one company and listed separately by another. A quote is easier to compare when it states the suction points, fan location, pipe route, electrical scope, post-installation test, and warranty.
Ohio radon potential and testing
The EPA’s Ohio map places many central and southern counties in Zone 1, the category with the highest predicted average indoor screening levels. Other Ohio counties fall in Zones 2 and 3. The map is meant for planning public programs and building-code work. It cannot predict the reading in an individual house, and the EPA says homes in every zone should be tested.
If you have not tested yet, the Ohio test-kit program currently offers free short-term kits to eligible Ohio homeowners while supplies are available. Follow the kit directions closely. When a result leads to a mitigation decision, confirm which test and documentation your installer, lender, or real-estate transaction requires.
Ohio requires licensed radon professionals
Ohio law requires licenses for radon testers, mitigation specialists, and mitigation contractors, subject to the exceptions written into the statute. The Ohio Department of Health administers the program. Before signing a contract, ask for the contractor’s Ohio license number and the name and license number of the specialist supervising the work. Confirm that the license is current with the state program.
The company performing the work and the person supervising the design have different roles under Ohio law. A national certification can be a useful credential, but it does not replace any Ohio license that the job requires. The EPA provider page links to national credentialing directories; use it alongside Ohio verification rather than as a substitute.
Questions to ask Ohio installers
- What are the Ohio license numbers for the contractor and supervising mitigation specialist?
- How many foundation zones and suction points are included in this price?
- Are electrical work, permits, sealing, finish repairs, and the final radon test included?
- Where will the fan and exhaust termination be placed, and how will noise and condensate be handled?
- What does the warranty cover if the post-installation result remains above the target?
Ohio cost questions
Is radon mitigation more expensive in Columbus or Cincinnati?
This page does not claim a city-by-city premium because the available state price index is broader than a contractor market. Labor availability, foundation layout, and pipe routing can create a larger difference than the city name. Use the Ohio range, then compare at least two written scopes from licensed providers serving your address.
Does an Ohio Zone 1 county make the system cost more?
Not automatically. The zone describes predicted regional radon potential, not the system design for a specific home. The installer’s diagnostic work, foundation zones, suction points, fan selection, and pipe route determine the scope.
Does Ohio pay for radon mitigation?
We did not find a current statewide program that promises to cover every homeowner’s installation. Free test kits may reduce the testing cost. Ask the Ohio radon program and your local health department about any income-qualified, county, or time-limited assistance before work begins.
Should the installer perform the final test?
Ask who will perform the post-installation measurement and how Ohio’s testing rules apply. For a real-estate transaction, check the contract and transaction requirements before choosing the test provider.
How this Ohio estimate is built
The national model starts with a $1,150 professional installation allowance. It adds $0.18 per square foot above 1,200 square feet, then adds fixed allowances for foundation type, building height, and pipe routing. The low and high ends widen the midpoint to account for site conditions that the form cannot see.
For Ohio, the model multiplies that midpoint by 0.92774. This comes from the BEA’s 2024 all-items regional price parity of 92.774 for Ohio, where the U.S. average equals 100. The figure covers consumer price levels across the state. It is not a construction bid index or a radon-contractor price survey, so the result remains a range.
Sources and review notes
- U.S. Bureau of Economic Analysis regional price parities for the 2024 Ohio price-level adjustment.
- EPA maps of radon zones by state for Ohio zone context and the warning to test every home.
- EPA state radon program directory for Ohio Department of Health contact information.
- Ohio Revised Code section 3723.02 and section 3723.06 for current licensing requirements.
- EPA provider guidance for national credentialing directories.
Last fact-checked September 3, 2026. Cost figures are independent model outputs, not reported Ohio contractor averages. Rules, programs, and availability can change; confirm them before purchasing a service.