"Dear Clive and Jean,
I would just like to say, yet another project successfully completed by you! We are delighted with the chairs you have recovered for us and your guidance was indispensable!
We have lost count of the number of commissions you have undertaken for us over the past ten (10+) years or so, including the renovating and recovering of sofas, making of new curtains, curtain alterations and numerous other odds and ends.
You have approached all tasks with a combination of great enthusiasm, sound advice, all followed by work of the highest quality!
A powerful cocktail of skills and assets, and we both believe you have saved us thousands of pounds in the process!
It has always been intellectually stimulating and fun working with you and we are now looking for our next project. In the meantime, continue exactly as you are now.
Thank you to both of you and as always, stay well."