I was hoping someone may also have had this problem in the past and be able to advise me on what the problem could be...
Basically, for a few months now we have been hearing a constant low frequency vibrating/humming noise in the house. It started off all of a sudden one day in the early hours of the morning, as it woke both myself and my partner. We thought it was our next door neighbour (we live in a terrace house) turning on an air-con machine or something but I have been round since to ask them if they have any appliances like this turned on and they said no (they are decent people, so have no reason not to believe them). They even said they couldnt hear any vibrating/humming noise in their house when I asked them.
Some days/nights, the noise is quieter and bearable, however, other times it can be so loud the noise is over our TV and it also causes sleepless nights. I have unplugged all my electrical appliances and even turned off the Mains board but the noise is still there.
Ive done some reading on the internet and this problem does seem to be experienced by a few people, but no one has ever published a solution or cause of the noise.
Im going to get an electrician/plumber to come and do some investigating, but before I do, I was wondering if other people have had (or are having) the same problem and if they ever found out what the problem was.