As much as it might be a slight inconvenience to you as you perceive it to be too noisy, this could be the thing that’s keeping the old boy going if he’s alone at Christmas. Better to be outside building shit than festering in sadness alone in front the TV.
Pop out, ask him cheerfully “you on your own today mate?”, invite him in for a few cans and some food, job done. No perceived disturbance, old boy has a nice afternoon and some company, good deed done.
And yes, we did something similar for an old fella a few doors down the other year. You could see how much it meant to him, even if as a chap of a certain age, he didn’t pour his heart out to say so.