Door Installation

About Our Door Installation Service

Door installation covers the full range of external door replacements across a property — from a single front door to a complete overhaul of all external doors on a home. At Red Lion Windows, we handle the survey, supply, and fitting of all door types we carry: composite doors, UPVC panel doors, French doors, patio doors, and bifold doors. Our installation process begins with a detailed survey of each opening — checking the frame reveals, threshold condition, and any structural considerations — before we take final measurements and recommend the right door specification. Correct sizing and a well-prepared reveal are the foundation of a door installation that fits cleanly, seals properly, and operates smoothly from the day it goes in. All external door installations we carry out are completed with full weather-proofing: correct threshold treatment, perimeter sealant, and weather-stripping to prevent draughts. This is especially important in Lincolnshire properties, where older external door frames can allow significant heat loss around the perimeter if not properly prepared before fitting. As Fensa Approved installers, we register applicable door and window installations with the national glazing compliance scheme — providing you with the documentation you need for future property sales or remortgages. We work across Boston and the surrounding towns and villages, including regular coverage across South Holland, the Kesteven countryside, and the Lincolnshire Wolds edge. Contact us for a free survey and no-obligation quotation for any door installation project.