Cat pee in concrete

[Marc Cleverley]

Didnt see a previous BP topic on cat piss for concrete. We fell into this property for a great price, but the house reeks now. We are worried about the walls and the concrete since it is porous. Any ideas on how to remove the smell. We plan on using killz on the wall, but I want to make sure the smell doesn't come back 3 months from now also.

[George P.]

straight on the cement? Muriatic acid wont help?

[Jason Grote]

Marc Cleverley
We once acquired the stinkiest house ever and used 50% bleach solution and sprayed everything liberally that was affected. It worked very well. Just spray and leave it for a day with the windows open.

[Marc Cleverley]

It wasn't straight on the carpet, but through the carpet and pad. Will try the bleach and acid solutions. Still have tack strips in house so that might be making it house. Previous owner used to travel and had hired a cleaning lady to fix the litter box and clean the house. Turns out the lady was allergic to cats so she never touched the litter box and did the minimum around the house so she wasn't with the cats. Long story short house stinks terribly, but the stench dissipates if we leave he windows open. Being in Houston though the humidity can just make it worse and worse.

[Jason Grote]

Pee on tack strip, carpet, or pad... they have all got to go!

[Dave M.]

Doesn't a concrete sealer both seal anything from the top down as well as the bottom up?

How about just applying a liberal coat and re-carpeting?

[Account Closed]

I have had two dog pee houses, I take 5 gallons of bleach and mix it with 5 gallons of water and flood the floors. If they are wood floors it gets vacuumed up in 30 minutes and aired out two days. We then seal the floors with two coats of OIL based sealer like Kills original.

In each case the smell is gone, I now look for stinky pee houses because they are cheap.

[Jodi Barraclough]

@Marc Cleverley

We too purchased a home where the carpet, padding, base boards and even concrete smelled of cat urine. We ripped it all out including base boards and tab boards, washed the foundation with a diluted bleach and this remedied the problem beautifully :-) I'm glad you sorted it out!

[Ryan M.]

Oil based Killz all concrete and forget about it.

[Bill Gulley]

Bleach, bleach and bleach! After the smell is gone and the place smells like a laundramat paint it with Kilz or better yet an epoxy concrete paint, want to improve it, install tile....

Seems cat and dog odors are absorbed in all kinds of fabrics, get rid of it. Paint trim, you might need to paint the walls a ceilings too.

At lest it's not as bad as meth! Good luck

[Dan V.]

Ditto to oil based Killz.
I've also used products to kill organic odors such as Chlorine Dioxide(CLO2). A couple of brands are OdorXit and NosGuard(no association to either).

I've used an ozone generator before but only because I've been told that it helps and I had one available to me; I wouldn't purchase one though.

[Karen Margrave]

Go to someplace like Petco and ask. You just need to find something that neutralizes the amonia probably. Bleach might work, or something with baking soda. Or google it!

[Lee G.]

Odor Xit is awesome... A couple bombs, a couple hours and no more smell (www.odorxit.com)

[Cheryl C.]

Definitely pull all the tack strips. Also clean the floor ducts (I sprayed the heck out of them) and replace the registers and any filters. I agree with the others on the bleach and floor sealant. Good luck. You should be fine.

[Ann Bellamy]

If you haven't already tried bleach, try SCOE 10x (google it) You can't use bleach first, so if you haven't, try the SCOE 10X first, follow the instructions carefully.

I had a tenant who let the rabbit pee on the carpet, which is almost worse than cat pee. This stuff did the trick.

My car vents get a nasty sour smell that SCOE 10X solves also.

[J Salter]

Nice Jeffery, the "stinky-pee house" strategy - I like it!!

That's the value, you have to find products that no one want's to touch and turn them into gems!

[J Salter]

Curious guys, is hardwood flooring recoverable if cat-pee is left on it over night or should the wood be resist for a while?

[Marc Cleverley]

We ended up hitting the baseboard and bottom foot of the wall with a water/vinegar mixture. Then the 50/50 bleach mix on the concrete and the place smells ten times better. We're still doing killz on the walls, not sure about the oil based on the floor. Thanks for the tips, really made a difference. Cool part was the bleach on the tack strips starting bubbling when the pee soaked part got hit.

[Aaron Mazzrillo]

Originally posted by Lee G.:
Odor Xit is awesome... A couple bombs, a couple hours and no more smell (www.odorxit.com)

I'm with Lee. Odor Xit is the best. Every landlord / house flipper should have some on hand.

[Aaron Mazzrillo]

If it is a rental, you could also advertise it as "Cat Lovers Paradise!" hahaha

[Account Closed]

Cat urine consists of mainly three chemical parts. The one creates the odor is, Uric acid which consists of salts and crystals that give off the extremely pungent odor. These odors attach to minute solids floating in the air, most are invisible, and each particle has a positive electrical charge because it is missing an electron. This enables it to drift as it is drawn in one direction and then another by electrical charges imbedding in carpets, drapes and walls creating phantom odors. Carpet and furniture are reservoirs for pet allergens, and the allergens can remain in them for four to six weeks.,aerosol sprays and candles only replace the odor with a more pleasant odor, they do not remove the odor only masks it.

[Jim Hiler]

@Account Closed

[Jim Hiler]

Im in contract to buy a cat infested condo. In my reno costs assumed doing similar remedies as to what all are describing above however now the HOA HOA president is trying to make me gut the place down to the shell and start over. She wants air reports from a certified mold company that all the mold and toxic by products of cat pee are removed.My plan would be to remove all flooring, baseboards, etc and remove 24" of drywall on walls, treat the slab and bottom of studs and put it all back together. Then kilz all remaining drywall. If I can't convince her of this approach I may not be making much if any money on this flip.

[Sam Shueh]

Lemon flavor detergent scrub.  Then spray baking soda powder.