Would you get cosmetic surgery first, knowing that you if you don’t get the quadruple bypass you need, you might die from a heart attack?.. Of course not right!?!
Believe it or not, there are people out there who renovate their home and give it all the cosmetic touches, knowing that they have plumbing pipes that in some areas leak, and need are in need of replacement. What a waste of money! When those pipes are ready to completely crack or break due to corrosion, those renovated walls will need to be cut open in order to access the pipes that are within.
Save yourself a lot of money and headaches. If your going to renovate, make sure you budget for your plumbing, and if your budget doesn’t call for it, then you might want to choose to fix your plumbing first, before fixing the cosmetics. It just makes sense.