Formal:
* Curtain Maker: This is a straightforward and descriptive term.
* Drapery Maker: This term is more common for elaborate curtains.
* Window Treatment Specialist: This term emphasizes the professional aspect and encompasses more than just curtains.
Informal:
* Curtain Seamstress/Tailor: This emphasizes the sewing aspect.
* Fabric Artist: This term suggests a more artistic approach to curtain making.
Other options:
* Custom Curtain Maker: This clarifies that they create curtains to order.
* Drapery Workroom: This refers to a business that specializes in making curtains.
Ultimately, the best term depends on the specific situation and what you want to emphasize.