I live on the ground floor of a block of flats in London. I came back to my flat from holiday and immediately noticed an unpleasant smell. I thought at first it smelled like ripe cheese like camembert but later I thought it smelled like sewage.
It seemed to be coming from a storage area where the gas meter is. I removed everything in the storage area and these things do not smell. The storage area still smells though. I don't really know what gas smells like do I don't know if I have a gas leak. There doesn't seem to be any dampness as far as I can see.
What should my next step be? I don't want to have to put up with the smell forever.