Cat wee odour - how to rid?

[Maggiethecat]

Tenant just moved out of flat and had kept cat/s without required consent.

The main bedroom smells strongly of cat wee although the smell permeates the whole flat. Turns out that sections of the room carpet were soaked through the underlay to the chip board. Not surprising as during the last couple of visits to the flat we saw that the litter tray was full of poo so probably not a pleasant space for the cat.

We’ve pulled up the affected carpet and underlay and liberally sprayed some enzyme spray on the chip board. We’ve also aired the flat but the whole place still reeks and I wonder what else we can do?

My mum and dad moved us into a house back in the 80's with a similar problem and they ripped out all of the carpets etc, back to the floorboards and doused absolutely everything in bleach.

You'll need to replace the chipboard. The urine will have soaked into it and there's no real way to get rid of it, unfortunately.

@biscuitsandbooks - think you’re right. It is truly foul and I cannot understand how someone could have lived in that stench.

I am very cross about the amount of trouble this is causing. I cannot even begin to market the flat with this smell although everything else is in reasonable order.

@Maggiethecat it's utterly grim, I don't blame you for being annoyed.

It's a nightmare smell to get rid of. Remove the chipboard but if you can't it's just a constant dose with enzymatic cleaners - the strongest you can find - check the labels as some say they are but actually aren't. When one of my cats took a disliking to the children and did it in the bedroom it took weeks and several hires of a rug doctor to get rid of the smell and that was just for the odd protest wee rather than a cat which had been kept in doors and doing its daily business on the floor

Took me ages to get rid of it out of our tiled floor so I think replacing the chipboard will be faster and cheaper tbh.

@RandomMess - it’s also on the tiled floor of the en-suite bathroom which is where the litter tray was kept.
I suppose porous tiles will be affected too!
This is turning out to be a bigger problem than I thought 😡

We used this spray which worked on our tiled floor may be cheaper elsewhere.https://www.petdrugsonline.co.uk/simple-solution-extreme-cat-stain-odour-remover-500ml-bottle?gadsource=1&gbraid=0AAAAADL7Hz67CJzQEJwnjENclS-2cXby8&gclid=Cj0KCQiAoJC-BhCSARIsAPhdfShmRoz2AAzT3ve37u77lGIMXISudkmiytduikCjvI9iwz-gYYlj6OcaAq07EALwwcB#646=9091

Hopefully they didn't get their deposit back and you have landlord insurance?

I’ve been using something from the same range, but yours might be stronger.

Still have the deposit which looks like all will be kept - missing furniture, broken glass hob etc