London, ON, Canada
Radon testing in London
6 current C-NRPP testing credentials whose official record names London, Ontario. This is partial coverage of professionals with an address in this city, not a list of everyone who serves it.
A C-NRPP certification is not a provincial licence. Confirm the credential and ask whether the professional serves your building before hiring. Check a C-NRPP number.
| Name / company | City | C-NRPP credential | Service | Valid through | Last verified |
|---|---|---|---|---|---|
| Alfredo Lorenzo MITIGAIR | London | CRT-202341 | testing | July 1, 2028 | September 14, 2026 |
| Ali Ismail EXP Service Inc. | London | CRT-202644 | testing | July 1, 2027 | September 14, 2026 |
| Guoyan Liu | London | CRT-202904 | testing | July 1, 2028 | September 14, 2026 |
| Joe D'Angelo T. Harris Environmental Management Inc. | London | CRT-201692 | testing | July 1, 2028 | September 14, 2026 |
| John Ainsley Marshall JAM (2005) Enterprises | London | CRT-201319 | testing | July 1, 2028 | September 14, 2026 |
| Yumeng Chen VIP Properties Management Ltd. | London | CRT-202928 | testing | July 1, 2028 | September 14, 2026 |