Radon System Repair & Fan Replacement in Champaign, IL

How Long Radon Fans Actually Last

Inline radon fans typically last five to ten years under normal continuous operation. They are rated for outdoor-duty use and built to run around the clock, but like any mechanical device with moving parts and bearings, they wear out eventually. A fan approaching or past that age range is a reasonable candidate for proactive replacement even before it fails outright, particularly if you are not sure of its exact age and would rather replace it on your own schedule than find out it failed during a home sale inspection.

If you know roughly when your system was installed, that is the single best data point for deciding whether age-related fan failure is a likely explanation for anything you are noticing, whether that is a flat manometer reading, unusual noise, or a rising retest number.

Signs Your System Needs Attention

The most reliable sign is the U-tube manometer itself: it should show liquid at a visible offset level whenever the fan is running. If it reads flat, level on both sides, the fan has either failed or lost power, and the system is not creating suction anymore even though nothing about the house looks different. Check it periodically, since it takes seconds to glance at and is the whole reason it is installed at eye level.

Unusual fan noise is another signal worth acting on. A radon fan that starts humming louder, grinding, or making a new rattling sound is often a bearing wearing out, and catching that before full failure means a planned replacement rather than an emergency one. A rising number on a retest, especially one that used to read comfortably low and now reads higher, points to either a fan degrading in performance before full failure or a physical problem somewhere in the system, like a cracked pipe joint, rather than the fan itself.

Common Repairs Beyond the Fan

Fan failure gets most of the attention, but it is not the only thing that goes wrong with a mitigation system over time. PVC joints can crack or work loose, particularly at connections exposed to temperature swings in an attic, and a cracked or disconnected joint lets the system pull room air or outside air instead of soil gas, which weakens suction at the actual suction point without necessarily stopping the fan. Suction points themselves can develop sealing failures where the pipe meets the slab, especially if the original seal was not done thoroughly.

We diagnose these issues the same way we design a new system: checking pressure readings at the suction point and along the pipe run to isolate where the loss is happening, rather than assuming it is the fan just because that is the most common failure. A repair that replaces a fan while ignoring a cracked joint upstream leaves you with a system that still is not depressurizing the slab properly.

What Repair or Replacement Costs and How Fast We Respond

Fan replacement alone is a relatively contained repair compared to a full new installation, since the pipe, slab penetration, and roofline termination are already in place and the work is limited to swapping the fan unit and reconnecting it. Joint repairs and suction point resealing are similarly targeted fixes rather than full reinstalls in most cases. We give a firm price after inspecting the specific issue, since a straightforward fan swap and a multi-point diagnostic repair are different scopes of work.

A dead radon fan is not an emergency in the way a burst pipe is, but it also is not something to leave indefinitely, since every day the system is down is a day your home is back to relying on natural conditions alone. We aim to get repair visits scheduled promptly once we know what is wrong, and a manometer check during any home purchase or periodic home maintenance is a good habit for catching this early.

Inherited Systems and Homes Bought With Existing Mitigation

Buying a home that already has a radon mitigation system installed is common in this market, and it comes with a specific set of unknowns: no installation paperwork, no idea of the fan's age, and no history of whether the system was ever retested after it went in. That is a completely normal starting point for a service call rather than a red flag, and it is one of the more common reasons people first contact us.

We can assess an inherited system's overall condition, check the manometer and pipe connections, estimate the fan's likely age from its model and condition where a manufacture date is not visible, and recommend a baseline retest so you know where the home currently stands rather than relying on whatever the system was doing when the previous owner last checked it, if they ever did.

Frequently Asked Questions