For slab leaks, thermal and GPR work best together. Here's how they compare alone.
| Factor | Leak.ca | Ground Penetrating Radar |
|---|---|---|
| Detects | Temperature differential from hot water | Pipe location, depth, and subsurface structures |
| Finds water directly? | Yes — temperature anomaly from moisture | No — finds pipes/voids, not water |
| Accuracy on slab | Good for hot water, limited for cold | Excellent for any in-slab target |
| Best combo | Thermal + GPR + acoustic for definitive slab leak location | All three methods together produce best results |