This is something I've been advocating for in California. Basically the equivalent to the auto repair law that guarantees that the repair is done to the quote or they tell you it will cost more and you have the right to take their quote elsewhere[1].

[1] If the technician later determines that it will take additional work and will cost more to fix your car than the original estimate, someone from the shop must contact you, describe the additional work and cost, and get your permission to proceed. -- https://www.bar.ca.gov/Consumer/Auto_Repair_Guide.html