Can I return custom blinds if they don’t fit or I don’t like them?

Generally, no. Custom blinds are made to your exact measurements, so they can’t be resold, and nearly every seller treats them as final-sale — a wrong size or a color you regret usually isn’t returnable the way a stock product is. The protection that exists is the remake policy: some sellers will remake a blind once for a customer mismeasure (often with a size limit and who-pays-shipping terms), and most will fix a genuine manufacturing error. That fine print is worth real money, so read it before you buy. The practical takeaways: measure twice, order one problem window before committing to a whole house, and treat the remake policy as part of the price you’re comparing.