RADON MITIGATION IN REGINA.
Sub-slab depressurization, designed and installed by a C-NRPP certified Red Seal trade.
Overview
If your radon test came back above 200 Bq/m³, the next step is mitigation. The most common approach in Regina — and the one Health Canada points to as the proven technique for slab-on-grade and basement foundations — is sub-slab depressurization. A pipe is cut through the slab, sealed, and connected to an in-line fan that runs continuously, pulling gas out from under the foundation before it can migrate into the living space and venting it above the roofline.
The design depends on the home. Foundation type (full basement, slab-on-grade, crawl space, mixed), the pre-mitigation radon concentration, the layout of utility penetrations, and the location of finished living spaces all change the system. A 1,200 Bq/m³ post-test result is sized differently from a 250 Bq/m³ post-test result. Wind Rose designs the system to clear the home to a verified post-mitigation level, not just to install a fan and walk away.
Every mitigation install includes a post-mitigation test to verify the system is doing what it was sized to do. If the post-test does not clear the home, the system is adjusted on Wind Rose's ticket — not the homeowner's. C-NRPP protocol calls for verification, and Wind Rose follows it.
DESIGNED, INSTALLED, AND VERIFIED.
C-NRPP certifies Wind Rose for both the design and the install. The Red Seal trade card means the same hands run the gas, plumbing, and venting work the system touches — no subcontract, no coordination headache. Every install includes a post-mitigation radon test, and if the system does not clear the home to spec, the system gets adjusted on Wind Rose's ticket.
C-NRPP is the certification required for Health Canada–compliant radon mitigation. Sub-slab depressurization without it is not credentialed work.
The Process
Site Assessment
Walk the home with the radon test results in hand. Identify foundation type, utility penetrations, and the best location for the suction pipe and the exterior vent stack.
On-site within 1 week
System Design
Size the fan, route the pipe, and pick the discharge location per C-NRPP protocol. Sizing accounts for foundation area, pre-mitigation Bq/m³ level, and slab construction.
Sized to pre-test result
Install
Core the slab, seal the suction point, route and insulate the pipe, mount the in-line fan, and run the vent stack above the roofline. Typically completed in one day for a standard residential install.
1-day typical install
Post-Mitigation Verification
Run a follow-up radon test after the system has stabilized. If the home does not clear to spec, adjust the system on Wind Rose's ticket. C-NRPP protocol requires this verification step.
Verified clearance
REGINA CMA. SOUTHERN SASKATCHEWAN.
Wind Rose covers Regina, Regina Beach, White City, Pilot Butte, Lumsden, Pense, Moose Jaw, Fort Qu'Appelle, Balgonie, and Emerald Park — roughly 100 miles around Regina.
- Regina
- Regina Beach
- White City
- Pilot Butte
- Lumsden
- Pense
- Moose Jaw
- Fort Qu'Appelle
- Balgonie
- Emerald Park
Frequently asked
How much does radon mitigation cost in Regina?
A standard sub-slab depressurization system in a typical Regina home starts around $2,500. The number changes with foundation type (full basement vs slab-on-grade vs crawl space), how many suction points the design needs, the pre-test radon level, and the route the vent stack has to take to reach the roofline. See the Pricing page for the full breakdown.
How long does a mitigation install take?
A standard single-suction-point install in a residential home is typically a one-day job. Multi-suction-point systems, slab-on-grade with limited access, and homes with complex utility routing can run two days. Wind Rose confirms the timeline at the site assessment, before the install date is booked.
What's the difference between a passive and an active mitigation system?
A passive system uses natural convection — no fan — to draw radon out from under the slab. It is sometimes installed at the time of new construction and relies on the stack effect to work. An active system uses an in-line fan that runs continuously. Active systems are the proven approach for retrofits in existing Regina homes; passive systems alone rarely clear a home that tested high.
Will the fan be loud or use a lot of power?
Standard residential radon fans draw 60–100 watts continuously and run at a noise level comparable to a bathroom exhaust fan. Wind Rose mounts the fan outside the conditioned space (typically in the attic or on an exterior wall) so the sound is not heard inside the home in normal operation.
Do I still need to test after mitigation is installed?
Yes. C-NRPP protocol calls for a post-mitigation radon test to verify the system is doing what it was sized to do. Wind Rose runs the post-mitigation test as part of the install scope, and adjusts the system at no extra cost if the home does not clear to specification.
How long does a mitigation system last?
The pipe work and slab penetrations are permanent. The radon fan itself typically lasts 8–12 years before it needs replacement — a routine swap that takes about an hour. Wind Rose can service or replace existing mitigation fans from any installer.
ONE TRADE. ONE JOB TICKET.
Free estimate by phone or form. Regina-based, Red Seal–credentialed.