Short-Term Home Radon Test
A 48-hour or longer continuous monitor test that gives a quick, reliable look at the current radon level in your home.

Continuous radon monitor testing in York County
Home Radon Test · Real Estate Radon Testing · Post-Mitigation Radon Test
Radon testing in York, PA is the only way to know how much radon is in your home. We place a calibrated continuous radon monitor in the lowest livable level for at least 48 hours, record hourly readings, and explain what the average means against the EPA action level of 4.0 pCi/L. You get clear numbers and a clear next step, whether that is peace of mind or a radon mitigation estimate.
Free estimateStandards-based installationPost-mitigation test
4.0
pCi/L EPA action level
fix homes at or above this level
1 Day
Typical installation
for most York homes
14
Nearby communities
plus every York neighborhood
PA DEP certified radon mitigation
Who you are calling
A radon test is only as good as its setup. Placement height, distance from exterior walls and sump pits, closed-house conditions and test length all change the result. We set the monitor where the EPA and Pennsylvania protocols call for it, document the conditions, and flag anything that could disturb the reading.
Continuous radon monitors record radon every hour, so you see the pattern as well as the average. That makes it easier to spot a window left open, a weather swing or a sudden spike, and it gives buyers, sellers and homeowners a report they can rely on.
When to call
Radon cannot be seen or smelled, so the clues are in your test results, your system and your foundation. Note your latest radon number and when the test was taken.
(717) 275-0074 The EPA recommends testing every home. Radon levels vary from house to house, even on the same York street, so a neighbor's result does not tell you yours.
Radon testing during the inspection period gives both sides a documented number and time to arrange mitigation before closing if the level is high.
Converting a basement into a bedroom, office or playroom means more time in the level of the home that usually has the most radon.
Foundations settle, new cracks open and radon systems age. The EPA recommends retesting a mitigated home at least every two years.
The right method for the home
Different situations call for different radon tests. We recommend the one that answers your question fastest and most reliably.
A 48-hour or longer continuous monitor test that gives a quick, reliable look at the current radon level in your home.
Timed to your inspection period, with setup notes and hourly data that buyers, sellers and agents can review.
Run after a new radon mitigation system has operated for at least 24 hours to confirm the reduced radon level.
What you get
Every job includes all of the following. Nothing here is an extra added on once we are already at your home.
We explain closed-house conditions for the 12 hours before and during the test so the result reflects normal living conditions.
The monitor is placed in the lowest livable area at the right height and distance from walls, windows, sumps and vents.
You receive the average radon level plus hourly readings so unusual swings or disturbances are easy to see.
We explain the result against the EPA action level and, if needed, provide a radon mitigation estimate for your home.
How the job runs
Every Radon Testing York PA job follows a home-specific plan, from the first radon number to the verified result.
We book a time that fits your schedule or inspection deadline and send closed-house instructions ahead of the visit.
The continuous radon monitor is set in the correct location and started, with test conditions documented.
The monitor records hourly radon readings for at least 48 hours while closed-house conditions are maintained.
We pick up the monitor, share the report, and explain whether radon mitigation is recommended for your home.
RM York · Local radon specialists
Tell us whether the test is for your own home, a purchase or a sale, and your deadline. We will find the right time to place the radon monitor.
Upfront pricing
Simple, flat pricing for the most common radon tests in York County homes.
$175 48-hour continuous monitor
$195 timed to your inspection period
$150 after a new or repaired system
Prices are typical for single-family homes in York County. Multi-unit buildings and rush scheduling are quoted separately.
Health and household safety
Radon is invisible, odorless and present in every state. Testing is simple, and it is the only way to know your exposure.
The EPA action level is 4.0 pCi/L, but the EPA also recommends considering mitigation between 2.0 and 4.0 pCi/L because any radon exposure carries some risk.
Radon usually concentrates in basements and ground-floor rooms, which is why tests are placed in the lowest livable level of the home.
A radon monitor sits quietly on a table or shelf. No drilling, chemicals or disruption to your daily routine.
Before, during, after
Keep closed-house conditions for the full test, leave the monitor where it is, and go about your normal routine. Avoid running dehumidifiers or fans aimed at the monitor, and do not unplug it.
We collect the monitor, download the hourly data and walk you through the average. If the result is at or above 4.0 pCi/L, or between 2.0 and 4.0 pCi/L and you want it lower, we provide a written radon mitigation estimate.
Keep radon levels low
A few simple habits make every radon test more useful.
Test the lowest level you use regularly, even if it is a finished basement or a lower-level family room.
Retest after major renovations, new additions, foundation repairs, or changes to heating and ventilation.
Keep copies of every radon test report with your home records for future sales and insurance questions.
If you already have a radon mitigation system, retest at least every two years to confirm it is still working.
York, PA local insight
Radon comes from the natural breakdown of uranium in soil and rock, and south-central Pennsylvania has plenty of both. York County is in EPA Zone 1, the highest radon potential category, and Pennsylvania consistently reports some of the highest indoor radon levels in the country. Still, radon can vary widely from one house to the next, so the only way to know your home’s level is to test it.
York’s housing stock makes careful test placement important. Older city rowhomes often have fieldstone or rubble foundation walls, many suburban homes in Springettsbury, Dover and Red Lion have block basement walls and sump pits, and newer developments mix full basements, slab additions and crawl spaces. Each foundation type lets soil gas enter in a different way, and each needs the monitor in the right location.
If your test comes back at or above 4.0 pCi/L, the next step is a radon mitigation system installation designed for your foundation. Homes with a basement and sump pit usually need basement radon mitigation with a sealed sump cover. If you already have a system and the level is creeping back up, radon system repair or radon fan replacement may be all you need.
Buying or selling? Our guide to radon testing when buying or selling a York home explains timing and what a high result means for the deal. For a full overview of local services, start on the RM York home page.
Independent guidance: review the EPA explanation of what radon is (opens in a new tab) and the Pennsylvania DEP Radon Division (opens in a new tab) . These resources complement your radon test results and the written scope for your home.
Local radon standards
We combine accurate radon data, a system designed for your foundation, clean installation and a follow-up test that proves the result.
Radon testing and radon mitigation are all we do, so we know how York County homes behave during a test.
Placement, conditions and hourly data are recorded so the result stands up to questions in a real estate transaction.
If your level is low, we tell you. If it is high, you get a clear radon mitigation plan and written price.
Where we work
RM York serves every York neighborhood plus Hanover, Red Lion, Dallastown, Dover, Shrewsbury, Spring Grove, Glen Rock, Manchester, New Freedom, Seven Valleys, Stewartstown, Windsor, Wrightsville, York Haven. Call with your address to confirm the next available appointment.
York ZIP codes served
RM York · Radon Testing
54 W Market St, York, PA 17401
Monday to Friday: 8:00 AM to 6:00 PM
Straight answers
Need help with a detail not covered here? Call (717) 275-0074.
(717) 275-0074 Our standard short-term radon test uses a continuous radon monitor for at least 48 hours. Closed-house conditions start 12 hours before the test begins and continue until the monitor is collected.
The average indoor radon level in the United States is about 1.3 pCi/L. The EPA recommends mitigation at 4.0 pCi/L or higher and suggests considering mitigation between 2.0 and 4.0 pCi/L.
You can test any time of year. Radon levels are often higher during the heating season when homes are closed up, which is why closed-house conditions are required for every short-term test.
Yes, home test kits are a good first step. For real estate transactions or decisions about a radon mitigation system, a professional continuous monitor test gives hourly data and documented test conditions.
Yes. New construction can have high radon levels, and even homes built with passive radon piping should be tested to see whether a fan needs to be added.
Free estimate · Written quote
Know your radon level with a 48-hour continuous monitor test and a clear explanation of the results. Call now or request your radon test online.