Find 4 Door & Window Companies You Can Count On in Dartford

Kent Composite Doors is a specialist supplier of energy-efficient composite doors offering superior security and thermal performance. Based in Dartford, we provide made-to-order doors with 13 colour options, nine frame finishes, and advanced locking systems. Our 14-day installation service includes professional fitting with a 5-year guarantee, supported by a 10-year manufacturer warranty.

A to Z Glazing, established in 1984, supplies and installs high-quality glazing solutions for commercial and domestic properties across London, Kent, and Essex. Specialising in fire-resistant glass, armour plate doors, and energy-efficient windows, the company prioritises safety, compliance, and bespoke design. With a team of CRB-checked professionals, they serve schools, local authorities, and the NHS, offering 24/7 emergency services and tailored maintenance contracts.

Fortis & Hooke specialises in heritage window and door conservation using the proprietary Longaevitas system. We provide durable, environmentally responsible alternatives to replacement, combining traditional craftsmanship with modern strengthening techniques. Our services ensure historic timber features remain functional, energy-efficient, and visually authentic for generations.

Fitter Windows is a Harlow-based installer of double glazing, uPVC and aluminium windows, composite doors, conservatories, and shutters. We serve Essex, Kent, London, and surrounding areas, offering thermally efficient, secure, and low-maintenance home improvement solutions. Our products combine modern technology with customisable designs to enhance property value and energy performance.