Radon Test Cost Calculator
What radon testing costs depends on the kind of test you choose, a low-cost DIY kit, a reusable monitor, or a professional short-term test, and on how many areas of the home you check. This calculator gives you a rough budgeting range from those, using national averages published by third-party sources, which are named below. It is a starting point, not a quote.
A DIY kit screens your own home; a home sale needs a professional test.
Test the lowest lived-in level; larger or multi-level homes check more than one area.
Estimated range
$150–$400
- Professional test$150–$400
These are national averages, not a Peerless Environmental quote.
How This Estimate Is Built
The calculator starts from a published national range for the test you pick. DIY kits and monitors are priced per unit, so each area you test adds another kit, while a professional or real-estate test covers the first area on the visit and adds a smaller figure for each extra area beyond it. The area count matters because radon is not uniform: the EPA advises testing the lowest lived-in level, and a larger or multi-level home is often checked in more than one place. Published rates are ranges, so the result is a range too.
Where These Numbers Come From
The rates here are national averages published by consumer cost guides and radon-testing firms. They are not Peerless Environmental prices, and we did not set them. Where those sources disagreed we show the full span, and where one source folded the cost of a mitigation system into a testing figure we left that number out rather than let it inflate the range. What your test actually costs depends on your area and how many places you check.
What the Calculator Cannot See
A radon reading is a moment in time, and its cost turns on things a form cannot capture. A short-term test is fast but can be skewed by weather, a recently opened house, or the season, while a long-term test rides out those swings for a truer annual average. How many levels a home has, whether a basement is finished and lived in, and how quickly you need the lab result all move the number. The figures here are a budgeting starting point, not a bid.
DIY Kit, Monitor, or Professional Test
For your own peace of mind, a DIY kit is a genuinely good option: the EPA recognizes charcoal and alpha-track kits, and at $15 to $50 they are the cheapest way to learn whether you have a problem. A reusable electronic monitor costs more up front but keeps reading over time, which suits a home that has already tested near the action level. A professional test puts a certified continuous monitor in the home for a short-term reading with a documented report. The right choice depends on why you are testing.
When a DIY Test Is Not Enough
A DIY kit tells you what you need to know for your own household, but a home sale is different. A real-estate radon test follows a tamper and chain-of-custody protocol, so the result holds up for a buyer, a lender, and a contract, which is why it is priced higher than a self-test. If any test comes back at or above the EPA action level, the next steps are a confirming test and, usually, a mitigation system. Peerless Environmental provides radon testing and mitigation across the Southeast.
What Backs Our Work
Every Peerless Environmental location follows the same safety-first standard, so you get clear answers no matter which local team you call.
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AHERA certification for school and public building asbestos inspections, and EPA RRP certification for lead-safe work practices.
Clear Reports & Documentation
Results you can understand and share with owners, buyers, managers, or regulators.
Compliant Work Methods
Procedures aligned with EPA and state environmental regulations, from site preparation through final documentation and clearance.
Local Teams, Shared Standards
Market-level response backed by the Peerless Environmental process.
Common Questions
How much does radon testing cost?
It depends on how you test. A DIY kit runs about $15 to $50 with the lab fee usually included, a reusable home monitor is a one-time $125 to $400, and a professional short-term test runs roughly $150 to $400. A radon test done for a home sale costs more, about $200 to $500, because of the tamper controls a transaction requires. Testing more than one area of the home adds to any of these.
Are DIY radon test kits accurate?
Yes, when used correctly. The EPA recognizes both charcoal short-term kits and alpha-track long-term kits, and for learning whether your own home has a radon problem they are a sound, low-cost choice. The catch is that a DIY result is not what a home sale needs: a buyer or lender generally requires a professional test with a documented chain of custody, which a self-test does not carry.
Should I use a short-term or a long-term test?
A short-term test, 2 to 7 days, is fast and fine for a first look or a real-estate deadline, but a single reading can be thrown off by weather, an open house, or the season. A long-term test, 90 days or more, averages those swings out and gives the truest picture of what you actually breathe over a year. Many people screen with a short-term test first and follow up with a long-term one if the result is near the action level.
Source: EPA, A Citizen's Guide to RadonHow much does a radon test cost for a home sale?
A real-estate radon test runs about $200 to $500. It costs more than a standalone test because it follows a tamper and chain-of-custody protocol so the reading holds up for a buyer, a lender, and the contract, and it is often coordinated with the general home inspection. Peerless Environmental schedules testing on a transaction timeline.
Radon testing before buying a homeDoes this calculator give me a price from Peerless Environmental?
No. Every rate here is a national average published by a third-party source, shown so you can budget before you talk to anyone. Peerless Environmental provides radon testing and mitigation across the Southeast; what your test actually costs depends on your area, how many places you check, and whether the reading calls for a follow-up.
Request radon testingHow many areas of the home should I test?
The EPA advises testing the lowest level you live in, such as a basement or ground-floor room you use regularly. A single-level home usually needs one test; a larger or multi-level home is often checked in more than one place, since radon can vary from one part of a house to another. Each additional area you test adds to the cost, which is what the area count in the calculator reflects.
When you should test for radonSource: EPA, A Citizen's Guide to Radon