I would also like to assure this customer that my company provides professional painting work. You can emphasize that professionalism by using the Cardinal C's when writing a painting specification. The Cardinal C's. The Cardinal C's of painting contracting integrate professionalism into the process of describing painting procedures, and thus elevate the purpose of specification writing. The first C is competence.
Competence means having the requisite skills to do it right.
Odds are that your competitors' proposals take competence for granted, not even hinting at a warranty, best-quality materials, or supervision. If this is true, your bid proposal will take a quantum leap in professionalism over their proposals. Additionally, the fact that you're writing a specification at all is a professional statement of competence. The second C is cleanliness. My father considered cleanliness a basic painting skill.