Hi newbie here so hello 🤦♂️
I've recently moved into a lovely detached property but I've noticed a very low level humming sound in the mornings. I'm a very light sleeper so if I wake up I struggle get back to sleep because of this. It sounds like an electrical hum if that makes sense. Or if you lived in a semi and your neighbour was hoovering kinda thing. Wearing earplugs makes it worse as it intensifies the sound. I've tried turning off the boiler and killed the main fuse switch but it's still there! Any ideas? X