Leaks and Cracked Pipe
Cracked PVC, separated joints and loose couplings let the system pull air from the wrong place and reduce suction below the slab.
Radon mitigation system service and repair
Radon System Repair York, PA
Radon Mitigation System Repair · Radon Alarm Going Off · High Radon After Mitigation
Radon system repair in York, PA restores protection when an existing radon mitigation system is not doing its job. Alarms sound, manometers drop, pipes crack, sump lids get left open, and retests come back high. We diagnose the whole system, from the suction point to the discharge above the roof, repair what is wrong, and confirm that suction and radon levels are back where they belong.
Free estimateStandards-based installationPost-mitigation test
4.0
pCi/L EPA action level
fix homes at or above this level1 Day
Typical installation
for most York homes14
Nearby communities
plus every York neighborhood
PA DEP certified radon mitigation
Who you are calling
Radon System Repair for Any York County System
Radon mitigation systems are simple, but small problems add up. A loose coupling, a cracked pipe in the attic, an unsealed sump lid or a new crack in the slab can let the fan pull basement air instead of soil gas. The manometer may still move, but radon levels creep back up.
We treat repair as a diagnosis. We check the fan, manometer, alarm and electrical supply, trace the pipe for leaks and damage, inspect seals at the slab, sump and walls, and compare everything against your radon test results. You get a written list of what we found and what it costs to fix, before any work starts.
- Full system diagnosis Fan, pipe, seals, manometer, alarm and discharge are all checked, not just the obvious part.
- Any installer, any age We repair radon mitigation systems installed by other companies and older systems without paperwork.
- Brought up to standard Missing labels, low discharge points and fans inside living space are corrected to current standards.
- Verified afterward Suction is confirmed on the spot and a follow-up radon test is recommended.
When to call
Signs Your Radon Mitigation System Needs Repair
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 - 01
Your Radon Alarm Is Sounding
A radon system alarm usually means the pressure switch is no longer sensing suction. The fan may have failed, a pipe may be disconnected, or the switch itself may be faulty.
- 02
A Retest Is Above 4.0 pCi/L
If a home with a radon mitigation system tests at or above 4.0 pCi/L, something is wrong with suction, sealing or the original design.
- 03
Visible Damage to the Pipe
Cracks, separated joints, sagging sections, missing straps or a pipe knocked loose during a renovation all reduce performance.
- 04
The Sump Lid Is Open or Missing
Plumbers and sump pump replacements often leave the radon seal off. An open sump lets the fan pull basement air instead of soil gas.
The right method for the home
Radon System Problems We Repair
Most radon system problems fall into a few categories. Each has a clear fix once it is found.
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Open or Broken Seals
Unsealed sump lids, new slab cracks and gaps at the floor-wall joint weaken suction and allow radon into the basement.
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Alarms and Manometers
False alarms, faulty pressure switches, cracked manometer tubes and missing gauges are repaired or replaced.
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Discharge and Code Problems
Exhaust that ends below the eave or near windows is extended above the roofline to meet current radon standards.
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Water in the Pipe
Condensation or rain collecting in the pipe can block airflow and damage the fan. We correct slope and drainage.
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Systems That Never Worked Well
If radon stayed high after installation, we evaluate suction reach and add suction points or upgrade the fan.
What you get
What Our Radon System Repair Service Includes
Every job includes all of the following. Nothing here is an extra added on once we are already at your home.
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Complete System Inspection
We inspect the fan, pipe, seals, sump, manometer, alarm, electrical disconnect and discharge point from bottom to top.
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Suction and Leak Testing
We measure suction at the pipe and check for leaks at joints, couplings, the slab penetration and the sump lid.
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Repairs to Current Standards
Approved repairs are completed with radon-rated materials and to Pennsylvania DEP and ANSI/AARST standards.
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Written Findings and Retest Plan
You receive a summary of what was found and repaired, plus a recommendation for follow-up radon testing.
How the job runs
Our Radon System Repair Process
Every Radon System Repair York PA job follows a home-specific plan, from the first radon number to the verified result.
- 1 Step 1
Review History and Results
We look at your radon test results, system age, installer information and what changed recently in the home.
- 2 Step 2
Diagnose the System
We test suction, check for leaks, inspect seals and discharge, and confirm the fan and alarm are working.
- 3 Step 3
Repair What Is Wrong
Once you approve the written price, we repair pipe, seals, alarms, discharge or fan issues to current standards.
- 4 Step 4
Confirm and Retest
We confirm suction with the manometer and recommend a follow-up radon test to verify your level.
RM York · Local radon specialists
Radon System Not Working Right? Book a Repair Visit
Tell us what is happening: an alarm, a level manometer, visible damage or a high radon test. We will schedule a diagnostic visit.
Upfront pricing
Radon System Repair Cost in York, PA
Typical pricing for diagnosing and repairing existing radon mitigation systems.
System Diagnostic
$150 full inspection visit
- Fan, pipe, seal and alarm inspection
- Suction and leak check
- Written findings and repair price
Most popular
Seal and Pipe Repair
$250+ most common repairs
- Sump lid resealed or replaced
- Cracked pipe, joints or couplings repaired
- Accessible slab cracks sealed
- Manometer checked or replaced
System Upgrade
$600+ discharge, alarm or suction upgrades
- Discharge extended above the roofline
- Added suction point or higher-suction fan
- Alarm installation or replacement
- Follow-up radon test recommended
Diagnostic fee is credited toward approved repairs completed at the same visit. Fan replacement is priced separately.
Health and household safety
Why Radon System Repairs Should Not Wait
A damaged or leaking radon system can look like it is working while radon levels climb.
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Hidden Radon Increases
A system with leaks may still move the manometer, but not pull enough from below the slab to keep radon below the action level.
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Leaks on the Pressure Side
Cracks on the discharge side of an older, poorly placed fan can push radon-rich air into attics, garages or living spaces.
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Low Discharge Points
Exhaust that ends near windows, doors or decks can allow radon to re-enter the home or reach outdoor living areas.
Before, during, after
Preparing for a Radon System Repair Visit
Before We Arrive
- Gather your most recent radon test results and any paperwork from the original installer.
- Clear access to the sump pit, suction point, manometer and the full pipe route, including attic hatches.
- Note when the alarm started or when the manometer reading changed, and any recent plumbing or renovation work.
- Make sure we can reach the electrical disconnect or breaker for the radon fan.
During the Visit
A diagnostic visit usually takes about an hour. Many seal and pipe repairs can be completed the same day once you approve the written price. The fan may be switched off briefly while repairs are made.
After the Work
We confirm suction with the manometer and explain what was repaired. Schedule a follow-up radon test so you have a documented result showing your system is working again.
Keep radon levels low
Avoid Future Radon System Problems
Most radon system repairs are preventable with a quick monthly check.
- 01
Look at the manometer once a month and write down the reading so you notice changes early.
- 02
Ask plumbers and sump pump installers to reseal the radon sump cover when they finish.
- 03
Protect exposed pipe in garages and basements from impacts during storage and renovations.
- 04
Retest at least every two years and after any foundation, plumbing or basement finishing work.
York, PA local insight
Radon System Repair Across York County
Radon mitigation has been common in York County for decades, which means many homes have systems that were installed by previous owners, older companies or builders. Some of those systems were never fully sealed, discharge below today’s recommended height, or have been bumped, cut or disconnected during basement renovations since.
York County’s location in EPA Zone 1 makes working systems especially important. A system that has quietly lost suction can let radon climb back toward its original level without any obvious sign until the next test. That is why the EPA recommends retesting homes with radon systems at least every two years.
If the diagnosis shows the fan itself has failed, radon fan replacement is usually a quick fix. Homes with open sump pits, new floor cracks or finished lower levels often benefit from the sealing methods described on our basement radon mitigation page. If the original system was never designed to reach your whole foundation, we may recommend an upgrade based on a new radon mitigation system installation design.
Once repairs are complete, schedule radon testing to document the result. For local background on why levels vary so much between homes, read our guide to radon levels in York County, or return to the RM York home page.
Independent guidance: review the EPA radon information for homeowners (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
Why Choose Us for Radon System Repair in York
We combine accurate radon data, a system designed for your foundation, clean installation and a follow-up test that proves the result.
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We Find the Real Problem
A full system diagnosis means you pay to fix the cause, not just the symptom that set off the alarm.
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Experience With Every System Type
Sub-slab, sump, crawl space membrane and block wall systems from many different installers.
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Honest Repair or Replace Advice
If a repair is enough, we say so. If an upgrade is the better value, you get both options in writing.
Where we work
Radon System Repair Service Area Across York County
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.
- Hanover 17331
- Red Lion 17356
- Dallastown 17313
- Dover 17315
- Shrewsbury 17361
- Spring Grove 17362
- Glen Rock 17327
- Manchester 17345
- New Freedom 17349
- Seven Valleys 17360
- Stewartstown 17363
- Windsor 17366
- Wrightsville 17368
- York Haven 17370
York ZIP codes served
- 17401
- 17402
- 17403
- 17404
RM York · Radon System Repair
54 W Market St, York, PA 17401
Monday to Friday: 8:00 AM to 6:00 PM
Straight answers
Radon System Repair York PA FAQs
Need help with a detail not covered here? Call (717) 275-0074.
(717) 275-0074 Most radon alarms sound when the pressure switch stops sensing suction. Common causes are a failed fan, a tripped breaker or switched-off disconnect, a disconnected pipe, or a faulty alarm. A diagnostic visit finds the cause.
Leaks in the pipe, an unsealed sump lid, new slab cracks, a weak or undersized fan, or poor suction reach below the slab can all leave radon above 4.0 pCi/L. Each can be diagnosed and corrected.
Every system is different, but the liquid should be uneven and the reading should stay consistent over time. Write down the reading after installation and call if it drops to level or changes significantly.
Yes. We diagnose and repair radon mitigation systems throughout York County no matter who installed them or how old they are.
Most systems only need targeted repairs. If the original design cannot lower radon enough, we give you a written comparison of repair and upgrade options.
Free estimate · Written quote
Fix Your Radon Mitigation System in York, PA
Alarms, leaks, damaged pipe and high retests all have clear fixes. Call now for radon system repair, a full diagnosis and a verified result.