I've also been told with today's cleaners and enzymes it's pretty easy to get rid of the smell.I wish the forums had a voting option, but I wanted to start up a vote to see what the general consensus is..

To clean the floor  we used 3 stages of chemical treatment and enzyme treatment .

@Maritza McKinney when u turn over prepare to get rid of all the carpets, enzyme treat and the.

I'm hoping the sealant works well but figure once I do that, it can't be treated with this enzyme product at that point. 

I started doing a regular routine of enzyme treatments every few months I use either Ridex or the enzyme sticks by Green Gobbler down each sink and shower every month or so and no problems since. 

To clean it, you would need an enzyme cleaner and it must be liquid, to pass into the concrete itself. 

Oh ya, pet stores sell pet urine liquid enzyme eliminator but it's pretty pricey

I also use "Nature's Miracle" or another enzyme formula.I no longer allow pets, other than in a house with ceramic flooring.

I put all new flooring in the upper level of their unit, its a bi-level duplex, and the bedrooms are in the basement, which has carpeting, as did my side, but I tore my carpet out due to years of dog urine never cleaned out of it, which soaked into the cement and even after enzyme cleaning and layers of scent sealing paint and then vinyl plank flooring, I can still smell it in the damp weather.

Had to tear everything out, several coats of commercial enzyme cleaner and several coats of kilz restoration primer.