If your cat has urinated on your unsealed indoor or outdoor concrete you need to use chemicals stronger than typical household cleaning products to remove the ammonia smell for good.
How to get rid of urine odor on concrete.
To remove urine odor from concrete start by spraying the concrete with a mixture of 2 parts white vinegar and 1 part water.
The urine is able to seep down into the unsealed concrete alongside other liquids and after a while bad odor will start to ooze from the concrete.
It also helps to use a wet vac if you have one particularly if you have a basement with urine odors and no drain available.
You will have an easier time preventing an odor from developing after washing away a fresh mess than you will getting rid of an odor that has developed over time as the result of a dog repeatedly urinating in the same location.
Once you ve scrubbed the whole area rinse the solution off with hot water and vacuum up the liquid with a wet vacuum.
Concrete is a porous material that soaks up stains and odors making them difficult to remove.
Cat urine is particularly unpleasant because of its strong smell and if left to linger the odds that another cat will choose that exact spot to eliminate in the future will increase greatly.
Get rid of residual urine odors beyond concrete at this point in the process you ve cleaned and dissolved away as much of the smelly uric acid containing crystals and stains as possible.
Although concrete is a very hard and durable material it is porous and absorbs stains and holds odors.
If your dog has been urinating in your concrete driveway patio or any other concrete area then you have some deep cleaning to do.
Then scrub the mixture into the concrete using a scrub brush.
To eliminate this problem you have to do a deep clean the concrete to get it all out and seal the surface to prevent future seepage.
The smell of ammonia can also stay muted after the urine dries and may get activated once the concrete gets wet again.
How to identify urine odor and stains in concrete.
You may have even decided to seal your concrete as an extra measure against any future reactivation of odor and to protect for the future.