About the service
This service is for those who already have a radon removal system installed but the fan turned out to be underpowered, outdated, noisy, or radon readings have risen again over time. This isn't about installing a new system from scratch, but rather upgrading the existing exhaust pipe and fan plus adding continuous level monitoring.
Work begins with a diagnostic visit. I measure static pressure in the exhaust pipe, check sub-slab depressurization at each pipe entry point, inspect the fan housing and seams for wear or air leaks, and conduct a short-term radon test to establish the baseline. This helps determine whether the current fan is genuinely too small for your home's area and soil characteristics, or if the problem lies elsewhere — a cracked seal, clogged pipe section, or faulty condenser.
After diagnosis is confirmed, the old fan is removed and a new inline fan with higher CFM capacity is installed, selected for the pipe diameter and system configuration to achieve the proper sub-slab depressurization. All connections are sealed with appropriate adhesive, the discharge point on the roof or wall is checked for compliance with distance requirements from windows and openings, and the electrical connection is verified for a separate, properly grounded circuit.
Alongside the fan replacement, I install a continuous digital radon monitoring device near the living area. Unlike a one-time test, it provides hourly readings showing real dynamics, failures are caught in time, and it confirms that the new fan truly maintains radon control day in and day out, not just at a single measurement point.
After the new fan starts up, I conduct a follow-up test and provide a written report comparing before and after readings, photos of completed work, documentation on the fan model and its specifications, and manufacturer warranty information. I'll also explain how to read the monitor and when to schedule a follow-up check.
Fan replacement and monitor installation typically take one business day on-site, while the final control test and results take one to two weeks depending on testing protocol. I bring my own fans, fasteners, and monitoring equipment — you just need access to power near the current fan location.
If you're unsure whether your fan needs replacing, or simply want an independent opinion backed by real measurements, write to me: the diagnostic work alone will show the exact condition of your system before you decide on an upgrade.
Work begins with a diagnostic visit. I measure static pressure in the exhaust pipe, check sub-slab depressurization at each pipe entry point, inspect the fan housing and seams for wear or air leaks, and conduct a short-term radon test to establish the baseline. This helps determine whether the current fan is genuinely too small for your home's area and soil characteristics, or if the problem lies elsewhere — a cracked seal, clogged pipe section, or faulty condenser.
After diagnosis is confirmed, the old fan is removed and a new inline fan with higher CFM capacity is installed, selected for the pipe diameter and system configuration to achieve the proper sub-slab depressurization. All connections are sealed with appropriate adhesive, the discharge point on the roof or wall is checked for compliance with distance requirements from windows and openings, and the electrical connection is verified for a separate, properly grounded circuit.
Alongside the fan replacement, I install a continuous digital radon monitoring device near the living area. Unlike a one-time test, it provides hourly readings showing real dynamics, failures are caught in time, and it confirms that the new fan truly maintains radon control day in and day out, not just at a single measurement point.
After the new fan starts up, I conduct a follow-up test and provide a written report comparing before and after readings, photos of completed work, documentation on the fan model and its specifications, and manufacturer warranty information. I'll also explain how to read the monitor and when to schedule a follow-up check.
Fan replacement and monitor installation typically take one business day on-site, while the final control test and results take one to two weeks depending on testing protocol. I bring my own fans, fasteners, and monitoring equipment — you just need access to power near the current fan location.
If you're unsure whether your fan needs replacing, or simply want an independent opinion backed by real measurements, write to me: the diagnostic work alone will show the exact condition of your system before you decide on an upgrade.
