Why QR codes work for reviews
People will leave a review when the path is short. Hunting through Google Search is enough friction to kill the moment. A QR on the counter, card or invoice opens the review box directly.
When to ask
Ask when the job feels finished; keys handed over, appointment done, work signed off. Waiting a week usually means they have moved on.
What this free tool does
Grow Local's Google Review QR builds a code pointed at your Google review link. It does not post reviews for you, and it will not invent fake ratings.
Print it, text it, or put it on the invoice.
Build my Google Review QR