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.
Peterculter
Peterculter is a residential area of Aberdeen, Scotland, regarding eight miles inland from Aberdeen city centre. Peterculter is on the northern banks of the River Dee, near the assemblages with Crynoch Burn and also Leuchar Burn. Following the 1996 Scottish council boundary alters it became part of the City of Aberdeen's Lower Deeside ward. The last part of the name is stated to come from the Gaelic substance word "Cul-tir", which indicates the "back component" of the country.