New Pads Needed

I’m embarrassed to say, I think I’ve let me pads wear down to the point that I can hear them grind when I break.

I don’t want to take it out again until they’re fixed, but luckily I have the day off tomorrow, so maybe I can get it sorted.

I assume it’s not a hard job, but I have no experience in this kind of thing, so would prefer a professional to do it. Are there any mobile mechanics anyone can recommend?

Thanks for any advice offered.