workmanship

This word is an uncountable noun, meaning you generally do not use it in the plural form (you wouldn't say "workmanships"). It is often used in professional or legal contexts, such as warranties and contracts, to describe whether a job was done correctly and with skill. While similar to "craftsmanship," workmanship is more commonly used for general construction or repair work, whereas craftsmanship often implies a higher level of artistic mastery.