Write the problem statement once
Give each bidder the same description and available records.
Compare included scope
Materials, quantities, preparation, permits, cleanup and warranty can differ.
Ask what is excluded
Unstated exclusions often create later changes.
Keep the final quote with the work record
It becomes part of the property history.
Safety boundary. This site is for planning, observation and records. Do not improvise electrical, fuel-burning, structural, roof-height or other hazardous work. Follow manufacturer instructions, applicable codes and qualified professional guidance.