Know where to look.
Plain-English guides to finding leaks, damp, draughts and hidden faults at home: what to check first, what the tools show, and when to call a pro.
How to read a thermal image: colors, reflections and emissivity
Purple here, orange there, a yellow blob you can't explain. What the colors on a thermal camera actually mean, the three things that fool almost everyone, and a five-minute routine for any suspicious spot.
October 23, 2026
How to find drafts and insulation gaps with a thermal camera
Drafts are hard to find by feel, because moving air spreads out before it reaches you. A thermal camera shows them as streaks on the wall and floor. How to find them in an afternoon, and which fixes are DIY.
October 23, 2026
Spark or Spark Pro? How to choose a phone thermal camera
Both plug into a USB-C phone and use the same app. The difference is how many temperature points they measure, and that decides how far back you can stand and still see the pipe.
October 22, 2026
Can a thermal camera find termites? What it shows, and what it can't
A thermal camera can't see termites, but it can show the moisture and warmth a colony leaves in a wall. How to scan for termite risk between inspections, and what to do when you find something.
October 22, 2026
How to find a hidden water leak behind a wall (without opening it up)
A stain on the plaster tells you there's water in the wall, not where it's coming from. Six steps to narrow it down to one spot before anyone cuts the wall open.
October 22, 2026