Estimate a realistic mitigation range by foundation type, home size, radon level, crawl-space scope, sump lid work, region, and fan assumptions. The result is a bid-style ledger you can use before calling contractors.
10-year ownership model
The calculator separates the installed system from the ongoing items that homeowners often forget when comparing bids: electricity, verification tests, future fan replacement, and optional monitoring.
Methodology and limitations
Source review completed August 27, 2026
The output is a budgeting worksheet for early decisions: whether to get bids, how to compare scopes, and what ongoing costs to include. It is not a local price guarantee or a substitute for qualified mitigation advice.
Estimate reliability
Use this calculator as a planning estimate, not a contractor quote, inspection report, health determination, legal opinion, or code-compliance decision. A mitigation professional still needs to inspect the home, and health or transaction decisions should be checked against current state and EPA guidance.
Start with the EPA Consumer's Guide to Radon Reduction for mitigation-system and contractor-selection guidance. The calculator does not determine health risk, choose a system, or verify that a home meets EPA or state guidance.
Verification products
Use products like these to confirm an initial reading, document a post-mitigation check, or watch longer-term trends after work is complete.
Affiliate disclosure
Partner tracking is not configured right now, so these product links use non-affiliate fallback URLs.
mail-in short-term test kit
The homeowner needs a low-cost initial or post-work spot check before comparing bids.
View optionThis product link is a non-affiliate fallback while partner tracking is not configured.
alpha-track long-term test kit
The homeowner wants a seasonal average after mitigation or during negotiations.
View optionThis product link is a non-affiliate fallback while partner tracking is not configured.
connected continuous monitor
The homeowner wants ongoing trend visibility after a failed test or new mitigation system.
View optionThis product link is a non-affiliate fallback while partner tracking is not configured.
plug-in radon monitor
The homeowner wants a radon-focused monitor instead of a broader air-quality device.
View optionThis product link is a non-affiliate fallback while partner tracking is not configured.
Calculator-derived worksheet
Use this checklist to compare mitigation bids and frame a seller-credit discussion. It is a planning aid, not legal advice, a contract demand, or a substitute for a contractor inspection.
Scope
Suction points, pressure-field testing, pipe route, fan location, discharge height, and cleanup.
Add-ons
Sump lid, crawl-space membrane, electrical outlet, permits, sealing, and finished-wall repairs.
Proof
Post-work radon test, warranty length, fan model, installer certification, and expected timeline.
Assumptions to verify before relying on the range
Supporting guides
Compare foundation differences, labor drivers, operating cost, and bid timing.
Review fan, PVC, sump lid, crawl-space membrane, sealing, permit, and testing line items.
Turn the estimate into contractor questions and post-mitigation verification reminders.
FAQ
It gives a planning range based on foundation type, home size, region, complexity, crawl-space area, sump work, fan wattage, and electricity cost. A contractor still needs to inspect the home before quoting.
The total combines installed mitigation cost, estimated 24/7 fan electricity, follow-up test kits, a fan replacement reserve, and an optional continuous monitor allowance.
Use it as a negotiation planning range only. Real estate contracts, disclosures, repairs, and credits should be reviewed with qualified local professionals.