When a job wraps up, both the client and the tradesperson can leave a review. That two-way accountability is what keeps the bar high on both sides — better clients and better pros.
Reviews are blind until both are in (or a short window passes), so neither side can react to the other's rating before writing their own. Once revealed, they appear on the relevant profiles and feed into the overall rating.
Honest, specific reviews help everyone — mention what went well and anything that could've been smoother.