Labrador moulting, is it normal?

i'm sure it is but my partner is wanting to take her to the vets??? ive had dogs all my life and its normal to me, she has no bald patches a so what ever is lost is being replaced, its because or other dog doesn't shed to much, he really has the hump and thinks im out of order, but there is nothing wrong, she's fine, i think the money for a vets bill would just be better spent on a decent hoover, what do you think??