Thanks very much for all your hard work. I’m extremely pleased with what you've done; not only in the amount, quality and tidiness of what you've achieved but also the way in which you got on and did the job with minimal involvement from me.
Thanks very much for a great job!
Many thanks for your work on our garden- it looks great
Thank you so much for helping us out on the garden
Thanks for doing the work on the garden, it looks great!