It is possible to replace a door without replacing the frame. However, most people choose to replace both their door and frame at the same time, as this is likely to make your home security and energy efficiency better, particularly if your existing front door is very old or the frame is distorted.
Pontefract
Pontefract serves as a historic market town in West Yorkshire, England, close to the A1 (or Great North Road) plus the M62 motorway. Historically part of the West Riding of Yorkshire, it's among the five towns in the metropolitan borough of the City of Wakefield and contains a population of 28,250. Pontefract's motto is Post mortem patris pro filio, Latin for "After the death of the father, support the son", a reference to English Civil War Royalist sympathies.