Some customers are offended when a tradesman turns up on their doorstep unannounced on a bank holiday. They make not say anything to you because they are being polite but it does offend some.
How would you feel if you had relatives coming to visit from a long distance. You have planned hosting and entertaining your friends and some tradesman turns up on your door unnanounced ruining your plans, not ideal is it?
If you are happy working a bank holiday doing domestic work then good for you. If it was commercial work, that's a different matter.
I would never ever dream of doing domestics on a bank holiday. It's the best excuse to have the day off. Work to live, not live to work.