System Checkups, Repairs & Retesting in Lincoln, NE
A radon mitigation system has one moving part and one job, and when the part stops, the job stops - silently. Fans typically last 5 to 15 years; when one dies, the house reverts toward its pre-mitigation levels with no alarm, no odor, and no visible change beyond a small detail most owners never learned to read: the u-tube manometer on the pipe, whose offset liquid columns level out when suction is lost. If you own a mitigated home in Lincoln and cannot remember what your manometer is supposed to look like, this page is your reminder. Thirty seconds of looking, twice a year, is the entire owner's manual - and we handle everything the look might reveal.
Repairs fall into a few familiar categories. Dead or dying fans - the usual culprit after a decade of continuous duty - are a same-visit replacement, typically $350 to $600 installed. Ice and condensation issues show up in Nebraska winters when exterior pipe runs frost internally; corrected routing and proper pipe slope solve it. And then there are the inherited systems: installs from decades past or corner-cutting outfits with fans mounted in basements (post-fan leaks there blow concentrated radon indoors - a genuine standards violation), discharge points exhausting beside bedroom windows, or unsealed slab openings the suction fights against. We audit inherited systems against current ANSI/AARST standards and quote corrections plainly, worst problems first.
Retesting is the habit that makes mitigation trustworthy, and it is inexpensive. Standard guidance: retest every two years even with a working system, after any fan repair, and after events that change the house's pressure dynamics - a basement finish, new HVAC, an addition, major foundation work. Homes bought with an existing system deserve a baseline retest too, since you otherwise inherit a guarantee you cannot verify. We keep retest pricing modest and records on file, so your home accumulates a documented radon history - the kind of paper trail that reassures your family now and your buyer eventually.
Signs Your Radon System Has Stopped Doing Its Job
Radon system repair and retesting is for Lincoln homeowners who already have mitigation installed, including the many who inherited a system with the house. Fans fail silently, and a stopped system lets a Lancaster County home drift back toward its original levels with no odor, noise, or symptom to announce it. The outcome is a working system and a current number that proves it.
- The colored liquid in the manometer sits level across both columns instead of offset.
- The fan is silent, or it has developed a rattle, whine, or grinding it did not have before.
- A GFCI outlet or breaker tripped, or the fan shares a circuit with something that trips, and nobody checked the fan afterward.
- The fan was unplugged for a roof job, siding work, or a basement remodel and never plugged back in.
- Ice or heavy frost builds up inside the exterior pipe run during a Lincoln cold snap, or the pipe has started whistling and gurgling.
- A deck, sunroom, window, or fresh-air intake was added near the discharge point since the system went in.
- The system is ten or more years old, or you have no idea how old it is because it came with the house.
- The last retest is more than two years back, or there is none on record, and the basement was finished, the HVAC replaced, or an addition built since.
Start with the manometer, since it is free and takes seconds: offset columns mean suction, level columns mean the system is decorative. What the gauge cannot tell you is what the house is reading now, because suction and concentration are two different measurements. Any repair that restores suction should end with a retest, or you have fixed a symptom on faith.
What a Real Radon System Checkup Involves
A proper checkup is a short list of specific checks, not a glance at the pipe on the way to the water heater. We start with the manometer, comparing its current reading against the suction level recorded when the system was verified, since a flattened or reversed reading is the clearest sign something has changed. Next is the fan itself: listening for its normal soft hum versus silence or an abnormal grinding, and checking it is still receiving power. We trace the visible pipe run for cracks, loose joints, or ice-related damage on exterior sections, and confirm the roof or wall termination point still has proper clearance from windows and doors, since additions, decks, or landscaping changes since installation can quietly compromise a placement that was correct on day one.
We check sealant integrity at the slab penetration, sump lid, or crawl space membrane seams the original design relied on, since caulk and gaskets do age. We also confirm the electrical connection is secure and, on older systems, check the fan mounting for hardware that has loosened after years of continuous vibration. If everything checks out, you get a clear pass and a note for your two-year retest calendar. If something needs attention, we explain exactly what and why before any repair work happens, itemized rather than bundled into a vague service charge.
Why Lincoln's Climate and Housing Stock Age Systems Faster
Two local factors shorten the practical service life of a radon system here more than in milder climates. The first is temperature swing: Lincoln regularly sees summer heat well into the 90s and winter cold well below freezing, and that range stresses exterior PVC joints, roof flashing around the vent termination, and fan bearings more than a moderate climate would, particularly on rooftop-mounted fans exposed to direct sun and wind versus units tucked into a garage or attic. The second is the sheer number of older systems in circulation.
Because Lancaster County's Zone 1 status and high measured radon levels have driven mitigation work here for decades, a meaningful share of Lincoln's mitigated homes carry systems installed 10, 15, even 20 years ago, sometimes by companies no longer in business, and fans have a finite mechanical lifespan regardless of who installed them or how well. Put those two factors together and the practical guidance is straightforward: homes with exterior or rooftop fan placement warrant a slightly closer eye than garage-mounted units, and any mitigated home changing hands or approaching a decade of service is a good candidate for a full checkup rather than an assumption that a quiet system is a working one.
Our Repair Guarantee, and How to Vet Who Touches Your System
If we installed your system originally and a retest shows it has drifted above 4.0 pCi/L, correcting it is covered under the installation guarantee rather than billed as a new project - that commitment does not expire on an arbitrary date tied to the original install. For systems we did not install, we diagnose and quote repairs plainly, worst problems first, and every repair visit that changes suction or sealing ends with a recommended retest so the fix is confirmed rather than assumed. When you are choosing who services a radon system - especially one you inherited with a home purchase - look for the same credentials that matter for a new installation: NRPP or NRSB certification, or Nebraska's radon licensing recognition, since diagnosing a failing system correctly takes the same skill as designing one from scratch.
Ask whether they service other companies' installs or only their own; a technician limited to one brand or design approach may not recognize an outdated practice in an older system. And ask what a retest after repair costs and includes - a repair without a verification test is a repair you are taking on faith, and faith is not really the point of any of this.
Replace the Fan, or Correct the Whole Radon System?
When a Lincoln radon system stops performing, the fork is whether the design around the fan was sound in the first place. A good system with a worn-out fan needs one part. A system that never met standards needs corrections, and swapping the fan on it only restores a result that was never good enough.
Replace the fan only
The install still checks out against current standards: fan outside living space, discharge above the roofline and clear of openings, sealed sump lid, labeled pipe, and a documented post-install number the house used to hit. The fan has simply reached the end of a decade of continuous running. A same-visit swap for a correctly sized unit restores the suction the manometer used to show, and a retest afterward confirms the house is back under the action level.
Correct the design first
The fan sits in the basement or an interior closet, where any leak downstream of it discharges concentrated soil gas indoors. Or the pipe exhausts beside a bedroom window or under an eave, the sump sits open, the suction never reached the far corners of the slab, or a new fan went in a few years ago and the retest still failed. Those are design faults rather than worn parts, and correcting them is what makes a replacement fan worth buying.
The undersell is a fan swap on a system that was wrong from the day it went in. The oversell is a full redesign quoted for a house that needed a motor. Measurement tells them apart, so ask for the suction reading before and after, the original post-install number if it exists, and a written list of anything that fails current standards, ranked by how much it actually moves your result.
System Checkups, Repairs & Retesting FAQs
How do I know if my radon system is still working?
Check the u-tube manometer on the system pipe - the small tube with colored liquid. Working suction holds the two columns at different heights; columns leveled out mean the fan has stopped or the pipe is blocked, and the system is doing nothing. Listen for the fan's soft hum as a second check. Manometer reads level, or the fan is silent or grinding: call for service, and plan a retest after any repair to confirm the house is back under 4.0.
How often should a mitigated home be retested?
Every two years, per standard industry guidance - plus after a fan replacement, any system repair, or changes to the home like finishing the basement, replacing HVAC, or building an addition, all of which can shift the pressure dynamics that mitigation depends on. Retests run $125 to $200. A mitigation system is a guarantee only as recent as its last verification, and two-year intervals keep the paperwork as healthy as the air.
What exactly is checked during a radon system inspection?
A full checkup covers the manometer reading against its original baseline, fan condition and sound, pipe joints and exterior termination clearance, sealant integrity at the slab and sump lid, and electrical connections. We also confirm nothing has changed structurally nearby - a deck built over the discharge point, a new window near the vent - that would compromise a previously compliant system. Most checkups take under an hour and end with a plain-language summary.
Can you service a radon system that another company installed?
Yes - we work on systems from any installer, not only our own. The first step is always the same regardless of who built it: check the manometer and fan, then evaluate the design against current ANSI/AARST standards, since older or out-of-town installs sometimes used practices that would not pass today. You get an honest assessment of what an inherited system is actually doing, with repair or retest options priced separately from any sales pitch.