Project Overview

A residential property in St Albans required a new patio door to replace an ageing sliding unit that had become stiff to operate and offered limited connection to the garden. The homeowners wanted maximum opening width for entertaining and easy access, but were also concerned about privacy and glare from a south-facing rear elevation. The goal was to install a white bi-fold patio door with integral blinds to combine a wide, unobstructed garden opening with effortless light and privacy control, while improving thermal efficiency and security.

Our Solution

We supplied and installed a bespoke white aluminium bi-fold patio door with integral blinds, tailored to the rear opening. Integral blinds sit sealed within the double-glazed unit, so there are no cords, chains, or dusty slats to maintain. The solution included:

  • White aluminium bi-fold door with slim-profile frames for clean sightlines and maximum glass area
  • Multi-panel configuration opening fully to one side for a wide, unobstructed garden opening
  • Bottom-mounted stainless steel rollers for smooth, quiet folding operation
  • Thermally broken profiles to reduce heat loss and prevent condensation
  • Double-glazed units with low-E coating and argon gas fill for improved thermal efficiency
  • Integral blinds sealed between the glass panes, controlled by a discreet magnetic slider (or optional remote), for privacy and glare control without cords or dust
  • Toughened safety glass throughout
  • Multi-point locking system with high-security handles
  • Low-threshold track for step-free garden access
  • Matching white handles and hardware for a cohesive finish
  • Concealed drop-down weather seals for superior draught protection

Installation Process

  • Carried out a detailed site survey with precision laser measurements of the existing opening
  • Confirmed panel configuration, blind type and colour, and hardware with the homeowners
  • Verified lead times for the integral blind units ahead of manufacture
  • Removed the old patio door and frame carefully to preserve surrounding brickwork and internal finishes
  • Disposed of all waste materials responsibly
  • Inspected and prepared the structural opening, lintel, and sub-cill
  • Lifted the white aluminium bi-fold frame into position using precision packers and laser levels
  • Mechanically fixed the frame to the structure, ensuring zero movement
  • Hung each door panel and adjusted bottom rollers for perfect alignment and smooth folding
  • Fitted double-glazed sealed units with integral blinds into all panels
  • Installed and tested the multi-point locking system
  • Applied internal and external silicone seals for an airtight, watertight finish
  • Tested folding operation across all panels multiple times
  • Demonstrated integral blind operation and maintenance to the homeowners
  • Completed thorough clean of glass, frames, tracks, and surrounding areas
  • Conducted a final walkthrough with the homeowners to confirm satisfaction

Multitrades Windows & Doors Benefits

  • Better thermal performance to reduce energy bills
  • Enhanced soundproofing
  • Secure locking systems
  • Easy-to-maintain materials
  • Compliance with latest UK building regulations
  • Durable materials that withstand UK weather
  • Aesthetics that match the home’s existing character
  • Expert installation with minimal disruption
  • Full warrantee for peace of mind
  • Outstanding customer support and care

Post Tags

Like it? Share it! Choose Your Platform!

Our Showroom

You are more than welcome to visit our showroom.
We are open MON – FRI 8.00am – 4.30pm
SAT – By Appointments Only

For outside working hours or weekends appointments, feel free to call us on 01923238322 or email at [email protected]
We’ll be happy to meet up and discuss your Glazing, Windows & Doors Project

Multitrades Windows & Doors
Unit 1, Wiggenhall Industrial Estate, Wiggenhall Road, Watford, WD18 0FL
get directions

Multitrades Windows & Doors offer End-to-End Service

At Multitrades Windows & Doors, we don’t just sell windows, doors & glazing. We manage the entire process from initial concept to completion.

  • Manufacture –We fabricate each door to precise specifications using original profiles and components. All doors are built in-house, ensuring strict quality control and fast turnaround times.

  • Supply –We deliver the chosen windows & doors directly to your site, anywhere in the region. Builders, developers, and homeowners trust us for reliable, on-time delivery and expert packaging to prevent transit damage.

  • Installation –Our experienced installation team ensures your  Doors and Windows are fitted with absolute precision. We manage all aspects, from structural alignment to weatherproofing and hardware setup. All installations come with Comprehensive 10 Year Guarantee, and we follow best practices to meet all relevant UK building regulations.

Get in Touch Today!

Add Photos or Sketches