I'm not sure where to go for advice about this, but perhaps someone could point me in the right direction...
We have recently bought and refurbished a flat and have now let it out. Whilst working on it we noticed the occasional whiff of what could be described as 'cat pee'... very strong ammonia. It seems to be isolated to two particular areas, one in the hallway and one by the base of our bathroom sink. The smell is not constant, rather it comes in wafts from time to time. We have wooden floors and there are gaps between the skirting boards and the floor for the smell to come in from.
Any advice? Could it be coming from the pipes, neighbours, floorboards, plaster, or anywhere else?
