Commercial & Institutional
Radon Mitigation for Commercial Buildings
Schools, childcare centers, healthcare facilities, offices, multi-family buildings and new construction. Tell us about the building and we'll connect you with certified mitigators who work at that scale.
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Include the building type, approximate square footage and any test results you already have — it lets a contractor scope the job properly the first time.
Buildings we get asked about most
Schools & universities
Many states require or recommend radon testing in school buildings. Classrooms on slab or below grade are the usual problem areas, and mitigation typically has to be staged around term dates.
Childcare & preschools
Young children spend long hours at floor level in rooms that are often in a basement or on a slab. Licensing bodies in several states ask for radon testing as a condition of operation.
Healthcare & clinics
Patient and staff occupancy is continuous, and mitigation has to be designed around existing HVAC pressure relationships rather than fighting them.
Offices & retail
Large slabs need multiple suction points and properly sized fans. A residential-scale system on a commercial slab will not achieve the pressure field you need.
Multi-family & HOAs
Ground-floor units carry the exposure, but the system design and the cost allocation are usually a building-wide decision.
New construction
Passive radon-resistant features cost a fraction to install during the build compared with retrofitting later. This is the cheapest moment to deal with it, and the easiest to miss.
Why a commercial job needs a diagnostic first
On a house, a single suction point under the slab usually covers the footprint. On a large commercial slab it rarely does. A mitigator has to measure sub-slab communication — how far suction actually travels through the material under the floor — before deciding how many points the building needs and how large the fans have to be. Skipping that step is how buildings end up with a system that runs continuously and still tests high.
The EPA action level applies to workplaces too
The 4 pCi/L action level is the same figure used for homes, but occupancy patterns differ. Children in a daycare or classroom can spend more hours a week in one ground-floor room than many adults spend at a desk, which is why testing in those buildings tends to be taken more seriously than in general commercial space.
Common questions
How is commercial radon mitigation different from residential?
Scale and interaction with the building. A large slab usually needs several suction points, correctly sized commercial fans, and a design that accounts for the existing HVAC pressure relationships. Diagnostic work comes first — communication testing across the slab determines how many suction points are actually required, rather than guessing from square footage.
Are schools and daycares required to test for radon?
Requirements vary by state, and some apply to childcare licensing rather than to schools generally. Several states mandate testing in school buildings, others recommend it, and some tie it to licensing conditions for childcare operators. Your state radon program is the authority on what applies to your building.
How much does commercial radon mitigation cost?
It depends on slab area, the number of suction points needed, fan sizing and how the system routes through the building. Costs are quoted per building after a diagnostic visit, not from a price list. Any contractor quoting a large building without measuring sub-slab communication first is guessing.
Can you mitigate radon in an occupied building?
Usually yes. Most of the disruptive work is on the slab and in mechanical spaces, and it is commonly scheduled outside operating hours. Schools frequently do the work over a break period.
What about a building still under construction?
That is the ideal time. Passive radon-resistant construction — a sub-slab aggregate layer, membrane, and a capped riser pipe — is inexpensive to build in and can be activated with a fan later if post-occupancy testing calls for it. Retrofitting the same protection into a finished building costs considerably more.
Also useful: certified mitigators by state, repairing an existing system, or understanding a test result.