You see the whole deal before you say yes.

A tech sees your repair job on NPCLocal and sends you an offer. You used to get a number and a maybe. Now you get the whole picture. What parts are included. How long it takes. Whether he charges for a site visit. What the warranty covers.

The tech writes it in plain words, not a form. You read it on your phone through NPCLocal. If something looks wrong, you reject it and he can try again. If it looks fair, you accept and the work is locked in.

This matters because estimates used to be vague. A tech could say fifty bucks and you would not know if that meant fifty plus parts, fifty after tax, or fifty if nothing goes wrong. Now the offer is the contract. Both of you see the same thing.