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I just ran into this problem a few days ago. Our sweet kitty managed to ruin a room in our house with his urine! I tried to steam clean it out, but to no avail! No matter what I put on it - enzyme cleaner, deodorizer - it would not work. The smell began to permeate my house, so it was time to take action!
Total Time: 3-4 hours - 2 days
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I'm replacing carpet in livingroom that a dog has gone to the bathroom on. How do I seal the subfloor so the urine smell doesn't come through?
By betty from Hastings, MN
We just went through this! My husband used shellac. He applied it 4 times with it drying in between applications. This was recommend to us by our carpet installer. It worked great!
The product I have used on sub-floors is called Killz. It is not too expensive and one gallon will go a long way. One thing to remember though, it is not "paint", in other words, it is not necessary to have a good coat on.
I am in the process of cleaning cat spray out of a pillow top mattress cover. I am going to try some of your ideas, I will let you know what works!
Which Kilz primer would I use on the subfloor to cover urine smell, the latex or oil, or the primer and sealer? Can I use the spray version?
By Deb S.
I am not sure Kilz would cover the odor. You might have to shellac it to be sure.
This should tell you everything you need to know. As a former property manager, I have seen Kilz do wonders. And I found oil based is better, as it is water repellent. Good luck.
A horrible cat odor from the next-door (this is a row home) was suddenly getting though to our basement. After sealing all cracks, joists and undersides of the subflooring out to 1 foot with mortar, foam, caulk, and Drylok, the smell was still as strong as ever. A fellow in a video said that shellac is the sealer to use here. I am nearly overjoyed to report that after 2-3 coats of shellac over everything (including the Dryloked party wall), the smell has finally abated. The product we used was:
Some of the stains are old and some are newer. My dog is old and decided this is her toilet. We have to remove the rug and get in on the stains. It is a big job coming up. I can't send the picture because the rug is still on down, it is wall to wall.
Many people have pet stains on wood floor problems in their homes but often do not realize the extent of the damage because the floor is covered by carpet. One hot summer, we bought a 50 year old house, having seen it with doors and windows open on a hot breezy day. Only after we moved in did we find the really foul smell and stains in all rooms. After we stripped the carpet, we found very large and clearly repeated stains with, again, the awful smell.
The problem is that the urine, feces and vomit soak into the wood and, over time, essentially become part of the wood-stain, smell and all. We tried many cleaners and even sanding, but, finally, realized we needed a new wood floor.
I hope your problerm can be resolved with surface cleaners and you do not need to pay for an expensive new floor. Good Luck!
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My dog ally has created an indoor potty for herself on the carpet. A friend has just pulled up the carpet for me. Now on the wood subflooring there are urine stains. What can I do to get the smell out of that wood? He suggested cleaning it with Febreze. Well, that isn't a cleaner. Then he said he could put more subflooring on top and then tile over it. Ii still think the smell would come through. Any ideas would be greatly appreciated.
Sandy from Baltimore
In my experience, the best bet is to clean it as well as possible. Let it try completely. Then apply a sealing primer like Kilz and seal the odor in. The primer smells pretty bad, but once that odor wears off, the pet odors should be trapped. This fix prevents you from having to replace the subflooring.
Bleach the hardwood floor. Use 1 part bleach to 1 part water. (05/08/2007)
By Joey Reno
I would suggest trying to sand it first, but make sure you are in a well ventilated area due to the dust and the urine getting into the air. Otherwise,you will need to take up the subfloor. I would "not" put subfloor on top of urine soaked subfloor, that would make it worse for you. In the summer with the heat what a smell that would bring out and why ruin more lumber? Just sand it out, if that doesn't work then replace the subfloor. Also, I would start crating the dog when I was "not" around. Good luck.
It's not a very cheap solution, but it does work, Nature's Miracle. Saturate where the dog used the floor, it should take care of the odors. You might have to repeat it several times; however, it is cheaper than new flooring.
There is a very simple product called "Kids N Pets" I bought it at WalMart. It works beautifully. Just pour some on the area let it soak in and then blot. I have done this on my carpet for doggy diarrhea and for cat urine on a couch pillow. It is all gone. I love this product.
I have 7 cats and when they have an accident, I put baking soda on the spot, wait 5 minutes and scrub. Then I pour white vinegar on it and scrub. You may have to do it a couple of times, because you don't want it to buckle the flooring, but from experience this does the trick.
By pam froelich
I have flipped many houses with the pet urine problem. Simple steps: Spray 1 to 1 bleach/water mix over any problem area. Then paint 2 coats Kilz over area. Next is the most important step that no one seems to do, spread 2 coats of polyurethane over the area to seal smell for good. Polyurethane is the protective coat that goes over finished wood floors so nothing penetrates and damages the wood. Lets nothing in or out. Final step is of course carpet or tile.