Based on some of the do-it-yourself home repairs and additions I have seen through the years I think the law should be “There is never enough money to do it right but eventually there will be to correct it!”
The issue may surface as a result of the home inspection when you are ready to sell your home. And, if that is the case, the buyer may walk depending on the problem.
This attempt to re-negotiate very often works because, at least here in Florida, most inspection contingencies are viewed by buyers as a "Get Out of Jail Free card."
And sometimes the issues impact the appraisal and the ability to get a mortgage approved. These are usually serious deficiencies. And if the work should have had a permit pulled then the process may take a bit of an effort to resolve.
Either way, I encourage homeowners to
- know your limitations,
- know the code,
- and do it right the first time.