Pentwyn has a small shopping centre which includes a One Stop convenience store, fish and chips shop, Indian takeaway, Chinese takeaway and betting shop. The convenience store included a post office until its closure in 2022.[2] Pentwyn Retail Park, situated off the A48 junction near the district, hosts several other stores and food outlets.[3] There are also several branches of supermarket chains in the local area.
Pentwyn is also home to the St David's Medical Centre, which comprises a doctor's surgery,[4] veterinary surgery,[5] dental practice,[6] pharmacy[7] and optician.[8]
Pentwyn Leisure Centre is one of Cardiff's largest; it has a swimming pool with a wave machine, squash courts, multi-activity sports hall, fitness suite, lounge bar and cafeteria. It is built in a similar layout to the Llanishen leisure centre. Behind the leisure centre is a popular skate park. The Leisure Centre is currently closed due to contract issues with GLL the charity that runs Cardiff Leisure Centres.
Pentwyn has five primary schools: The Hollies, St Bernadette's, St David's, Bryn Celyn and Glyncoed. There are currently no high schools in Pentwyn. There is a high school in lisvane on the outskirts of Pentwyn since 1987, a Christianity school.
The area is also home to the 1st Pentwyn Scout Group.[9]