Indicative ranges to help you plan. The layout of your basement and where the pipe can run set the final price.
| Service | Indicative range |
|---|---|
| Long-term (91-day) test kit, DIY | $40 – $80 |
| Long-term test, professionally placed | $150 – $300 |
| Short-term test for a real estate deal | $100 – $400 |
| Sub-slab depressurization system | $2,800 – $3,800 |
| Sealed sump lid or crawlspace membrane (add-on) | $200 – $1,500 |
| Post-mitigation short test | Often included; otherwise $100 – $200 |
Indicative 2026 prices before HST for the Ottawa area. Radon work is not currently covered by a federal home grant. Every quote follows a site visit.