Guillam Coffee House – Bayswater

Serious about speciality coffee, this Bayswater spot sells its own globally sourced single-origin beans — with tasting notes like dark chocolate, brown sugar and hazelnut — alongside speciality teas and brew-at-home kits for taking the flavour beyond the cafe. Doors open at 7:30 every day of the week, dogs are welcome, entry and seating are wheelchair-accessible, and it carries a dependable 4.4 rating from more than 600 reviews.