Mac99,  Thankyou for your input........very much appreciated I will follow up your suggestions.

I have experienced  something quite  similar in the past and it was water related. I was lucky that the water company accidently came across the problem. It's difficult and frustrating when others care unable  to hear something  but i too often hear these sounds that to some are just not there. I think once we become aware of a nosie nothing can kill that noise until the problems is sorted out.

Hi,

Mine wasnt quite  likes yours but it was water related. Mostly the nosies coming into he house  were much louder then what you have described. When the toilet was fllushed  or a tap raun i got noises akin to a terrible rattle always coming from below the floor. Then  the bathroom would almost shake. This would stop after  about 15 minutes. I sought advice from various plumbers but all to no avail. I also had other related nosies. I often heard lieke   a humming which seemed to come from the floors even downstairs. I had exhausted all avenues in my efforts  to find the source when one day a man from the water service was out checking things in the ground and he knocked on my door and asked me  if i had any rattles or strange sounds. Well, at that stage I could have written a book on my sound experiences. I am not sure what action he took but after that day all noises went away. I think some other peopl e had been experiencing similar problems but were dotted all over the place  and that it was a problem about a mile away under the ground relating to water.

It would appear  there is  a whole world under there that can cause such noises in our homes making us feel like we are going in sane because the source cannot be found.

I know water pressure problems can cause   strange sounds often subtle but very annoying. Have had an encounter with those as well.

Hope you have some success in your continued efforts to unearth the problem.  Don't give up.

Jo,

In my experiences and there have ben many of them  water related the banging  you describe can be to do with water  pressure being too high. The wrong valve in a toilet for the watter  pressure can cause an awful loud banging sound after the toilet is flushed. My neighbours toilet used to  constantly wake me at night until i told themabout the valve. I too used to have the problem.

I agree. Sounds a bit suspicious.

Not at all....

We have to hope the sound equipment does its job.....and for steps to be taken to abate the nusiences....without fear nor favour....which is within the E P Act 1990....as for the costs...its down to the owner of the source of the nusience(s). There's nothing in E P Act about permission to not act due to the costs incurred. 

Street lighting.....

someone's outside lighting....

emergency lighting....

lights coming on when daylight falls....which go off in daylight....

all these things have "components", subject to aging and wearing....(usually) easy to fix once the source is known...its finding the source thats the problem....once its off and running the vibrations sing, hum, and throb along walls...and its a matter of turn off and see the difference....sometimes the people who appoint positioning do not have a clue the utter and absolute misery which is caused.

and sometimes....so called self appointed experts get it wrong.... and sometimes your lucky to get a "sorry" (after 16 months and 16 days)