Is there a cheap service to clean up my very large, but amature model

i’ve modeled my house in a moderate amount of detail. It is not best practice however and a bit clunky. Is there anyone (or service) that can review my model and give me a price to clean it up?

yes, and free too.

for Free? or joking i assume?

It’s real, click the link, Cleanup will remove stray geometry, hidden geometry, combine layers, etc. It’s wonderful.

True: ThomThom has created a great tool but it can not fix any and all errors. Some success of some corrections are a function the program cannot correct because not enough info is available to it or even a function of the sequence of correction.
If at all possible you should post model here and make sure you save it before running any type of correction tool.