The practical advice is to research the job and obtain multiple quotes. Comparing providers shows what is feasible and whether one claim conflicts with the other advice. It can also separate the lowest price from the proposal that actually covers the work. The most expensive option may be worthwhile when it is the one that meets the need. Fit for purpose is the deciding factor rather than price alone.
Notable Point · 1:54-2:24
Multiple quotes and fit-for-purpose choices
Getting several quotes can show what is feasible and why the cheapest option is not always the one that meets the need.