Any alteration to your wall or ceiling could indicate a leak. In general, you likely have a leak if you notice any of the following in your home’s walls, ceilings, or attic:dark spots or discoloration on wood, drywall, or insulation. Go into your attic when it’s still light out. if you have a dedicated entry point to go into your attic, use that to access your attic.

Do this when it’s bright out so you ca…