Thank you, I'll check it out!

There are many products out there that all claim to remove the smell of pet urine - however, many do not work + they can be kind of expensive.

Do you know if it is dog or cat urine? There is a difference - the smell from cat urine is much more difficult to remove. First, cat urine is more concentrated than dog urine - basically, they drink less water than dogs + are able to "hold it" for a longer period of time. Also, cat urine contains uric acid - so, while the smell may seem to be neutralized after using certain products - it tends to be reactivated (= recrystallized) when it's humid = the smell comes back just as strong as it was before.

If it's dog urine, using vinegar is a good option. It can break up the dried urine + then layer a lot of baking soda over the entire area. Let everything dry - the vinegar smell will go away once it's dry and the baking soda will absorb odors.

You can try an enzymatic pet urine cleaner - but in my experience, vinegar + baking soda works better (I had a yorkie that had a litter of three pups - and had to deal with some missed potty pads - vinegar + bs removed the smell after I used stuff to clean the carpet/pad first - I really soaked the carpet w vinegar). I no longer have any carpet in my house - but no dog smell whatsoever when you walked into my home. EVER).

I don't know how well vinegar + bs works on cat urine.

If you are going to lay new flooring (hardwoods/LVP/tile/etc.) - I would then use an oil primer (Kilz or BIN - they have different ones - my understanding is that there is a certain kind that is good for this type of issue - works well on cigarette smells also. I would use 2-3 coats to seal the concrete before installing any new flooring. I believe that the right type of primer will also seal cat urine.

If, the chemicals don't work. Grab a jack hammer and chisel it out and repair the concrete.

+1 on Ameripolish stain removal products

I’m curious, what did u end up doing?