Smell of cat wee, but can't find the source

[jmh740]

I have two cats, yesterday when I was coming down stairs I could smell cat pee, today as soon as I opened the front door I could smell it. I've got down on my hands and knees and sniffed around even roped the kids in but we can't find the source of the smell.
Any suggestions of how I find where it's coming from?

You can get a special light that highlights it I believe. Some kind of UV light? Someone who has one will probably be along shortly...

Apparently a uv light will show up cat pee

Do you have carpets? If so, feel around the edges - they might be a bit sticky, or press some paper towel into the carpet to see if you can find anything damp. Check the stairs as well, my girl used to see on the corner stair at the top.

I've had the same thing. But my two are very well behaved and if one of them does do it, she has a particular spot. Might well be imagining it though!

I bought a uv torch from eBay. My male cat was horrified when he realised I could now see where he had pee'd!

Then I bought some stuff from pets at home that neutralised the smell and he hasn't done it since,

Lilies stink of cat wee as I discovered having searched my house for hours one weekend

Find the most expensive rug in the house. It'll be there for sure.

Bitter experience

Blacklights apparently show up cat wee. Other than that, a methodical crawling around on your hands and knees sniffing every inch of skirting / table leg / wall / doorframe is the only way! I feel your pain

I think I need to buy a black light! I'm getting paranoid about it now I hope I don't smell of cat pee too!

rumpypumpy lilies are poisonous to cats so please dont have them in the house not just the stamens but the whole plant

I got a pet pee UV torch from BnMs for £1