If there is pee, there will also be poo. Have a gander and see if you see any droppings. They're like little black pellets the shape of zeppelins (if you've ever had a hamster or gerbil, they're similar), if you can't find any I'd be very dubious about mice. In my experience from having them, you hear them scuttling at night. If you're worried, you can get humane traps for pretty cheap - definitely cheaper than an exterminator.

[–] nieceandtows@programming.dev 4 points 1 year ago (1 children)

I don't remember seeing any poop. Maybe I'll go up and check again. He also showed me some gaps in the insulation and said that's made by mice to get around. . He also said the insulation is 12 inches which is low and to gave me a quote for $8000 to remove existing insulation and blow new insulation (because there would be rat poop inside). Or $6000 to blow on top of old insulation.

[–] ikidd@lemmy.world 12 points 1 year ago

That is utter bullshit, he's a scammer.

[–] ptz@dubvee.org 20 points 1 year ago (1 children)

I think they typically use a black light to confirm that, don't they? Rodent urine should glow. If you have one, shine it on that spot and see if it fluoresces.

[–] nieceandtows@programming.dev 7 points 1 year ago

Thanks for the suggestion. I've ordered a black light flashlight. Let's see how that goes

[–] originalfrozenbanana@lemm.ee 14 points 1 year ago (1 children)

Not an expert but I would expect more droppings.

[+] tst123@lemmy.world 12 points 1 year ago* (last edited 1 year ago) (2 children)

[deleted]

[–] McScience@discuss.online 6 points 1 year ago (1 children)

Fun fact, cats aren't actually very effective at killing all the rodents. They've done studies and basically the cats just make them really skiddish and they hide so you never see them. They kill one here or there but the real benefit is getting them out of sight.

[–] Chickenstalker@lemmy.world 4 points 1 year ago

You never met my cat. She was the Terror of Rodents. Like Roman conquerers of old, she used to line up decapitated rats on the welcome mat as her Triumph. Stepping on a whole family of five dead rats while leaving for work is a good start to the day.

[–] usualsuspect191@lemmy.ca 4 points 1 year ago

That kitty litter solution wouldn't work for mice with toxoplasmosis, plus cat pee doesn't smell particularly nice...

I agree there would be droppings if there are mice.

[–] cestvrai@lemm.ee 13 points 1 year ago

You should be able to smell the pee (and, as others said, see the poo).

Unless the mice showed up yesterday, it should be fairly obvious.

[–] ikidd@lemmy.world 7 points 1 year ago

If you have mice, you will find mouse shit. Everywhere. If there is no shit, you don't have mice. Nothing in that picture looks like mouse shit.

[–] Jakdracula@lemmy.world 5 points 1 year ago

Mice Pee Stain was my bands name in high school!

[–] h3mlocke@lemm.ee 2 points 1 year ago

Get a mouse trap 1st.

[–] Death_Equity@lemmy.world 2 points 11 months ago

Every attic I have been in that had mice had tunnels through the insulation where the mice were going through. Like actual tunnels, not gaps or disturbed insulation.

Like this.