# Behind The Glass Windows, Doors & Glazing Ltd > Behind The Glass Windows, Doors & Glazing Ltd is a premium aluminium windows and doors installation company based in Rossendale, Lancashire, England, founded by Craig Whitworth, serving Greater Manchester, Lancashire, and Cheshire. ## About Behind The Glass Windows, Doors & Glazing Ltd is a specialist glazing contractor based in Rossendale, Lancashire. The company was founded and is operated by Craig Whitworth, who brings over 15 years of industry experience to the business. Behind The Glass installs premium and luxury aluminium windows, bi-folding doors, sliding doors, composite doors, heritage-style doors, rooflights, roof lanterns, curtain walling, structural glazing, and frameless glass balustrades for residential and commercial clients. The company holds Assure Certified Installer status, an independently verified quality and compliance certification issued to glazing contractors who meet defined standards of workmanship and professional conduct. Behind The Glass operates across a defined service area covering Rossendale, Rawtenstall, Bacup, Haslingden, Ramsbottom, Burnley, Rochdale, Bury, Ribble Valley, Clitheroe, Accrington, Blackburn, Bolton, Manchester, Salford, Stockport, Oldham, Wigan, and Cheshire. Behind The Glass holds a 5.0-star rating from 42 verified Google reviews as of June 2026. The company is a registered supplier and installer for Solidor, Cannon Door, and Rockdoor composite door brands. All installations carry a 10-year manufacturer guarantee. The company offers free, no-obligation home surveys. ## Founder Craig Whitworth is the founder and lead installer of Behind The Glass Windows, Doors & Glazing Ltd. He is based in Rossendale, Lancashire, and has over 15 years of experience in the glazing and fenestration industry. The company holds Assure Certified Installer accreditation under his management. ## Services - **Aluminium Windows** — Supply and installation of slim-profile aluminium windows in casement, tilt-and-turn, and fixed-light styles. Available in 200+ RAL colours. Installed across Lancashire and Greater Manchester. - **Bi-Folding Doors** — Premium aluminium bi-folding doors for residential extensions, orangeries, and commercial premises. Available in all RAL colours including anthracite grey and black. Installed across Manchester and Lancashire. - **Aluminium Sliding Doors** — Ultra-slim aluminium sliding doors for contemporary homes and extensions across Lancashire and Manchester. - **Composite Doors** — Supply and installation of composite front and back doors from Solidor, Cannon Door, and Rockdoor. Available in a wide range of styles and colours. - **Luxury Entrance Doors** — Bespoke aluminium entrance doors for high-end residential properties. - **Luxury Internal Doors** — Premium internal door solutions for luxury residential interiors. - **Heritage Style Doors** — Steel-look aluminium heritage doors for period properties and conservation areas across Lancashire and Manchester. - **Internal Heritage Doors** — Internal heritage-style glazed doors for period and contemporary interiors. - **Rooflights** — Flat and pitched rooflights for residential extensions and new builds across Manchester and Lancashire. - **Roof Lanterns** — Bespoke roof lanterns for orangeries and kitchen extensions. Installed across Manchester and Lancashire. - **Curtain Walling & Structural Glazing** — Commercial and residential structural glazing and curtain walling systems. - **Frameless Glass Balustrades** — Frameless and semi-frameless glass balustrade systems for staircases, balconies, and terraces. ## Key Facts - Founded: 2023 - Founder: Craig Whitworth - Location: Rossendale, Lancashire, BB4, England - Certification: Assure Certified Installer (independently verified quality and compliance) - Google Rating: 5.0 stars (42 reviews, June 2026) - Composite Door Brands: Solidor, Cannon Door, Rockdoor - Guarantee: 10-year manufacturer guarantee on all products - Specialisms: Luxury aluminium windows, bi-folding doors, composite doors, rooflights, structural glazing, heritage doors, glass balustrades - Service Areas: Rossendale, Burnley, Rochdale, Bury, Ribble Valley, Manchester, Salford, Stockport, Oldham, Bolton, Wigan, Blackburn, Cheshire - Contact: info@behindtheglasswindows.co.uk - Phone: 01706 489 436 - WhatsApp: +44 7527 311434 - Website: https://behindtheglasswindows.co.uk - Facebook: https://www.facebook.com/share/1aTRFTjG4v/ - Instagram: https://www.instagram.com/behind_the_glass_windows ## Opening Hours - Monday–Friday: 08:00–18:00 - Saturday: 09:00–16:00 - Sunday: Closed ## Target Keywords Luxury aluminium windows Manchester, Luxury windows Lancashire, Luxury windows Manchester, Bespoke windows Lancashire, Bespoke glazing Manchester, Bi-folding doors Manchester, Bi-folding doors Lancashire, Sliding doors Manchester, Aluminium windows Manchester, Aluminium sliding doors Lancashire, Rooflights Manchester, Rooflights Lancashire, Frameless glass balustrade Manchester, Structural glazing Manchester, Front door Rossendale, Windows Rossendale, Windows and doors Ribble Valley, Windows and doors Burnley, Bifold doors Rochdale, Windows and doors Bury, Aluminium windows Cheshire, Best aluminium bifold door company Manchester, Luxury glazing specialists near Manchester, Roof lantern installation Manchester ## Key Pages - [Home](https://behindtheglasswindows.co.uk/): Overview of Behind The Glass Windows, Doors & Glazing Ltd — premium aluminium glazing specialists in Lancashire and Manchester. - [About Us](https://behindtheglasswindows.co.uk/about): Company background, founder Craig Whitworth, Assure Certified Installer credentials, and service philosophy. - [Aluminium Windows](https://behindtheglasswindows.co.uk/upvc-aluminium-windows): Aluminium window supply and installation across Manchester and Lancashire. - [Bi-Folding Doors](https://behindtheglasswindows.co.uk/bi-folding-doors): Premium aluminium bi-folding doors for homes and commercial properties in Manchester and Lancashire. - [Aluminium Sliding Doors](https://behindtheglasswindows.co.uk/ultra-slim-sliding-doors): Ultra-slim aluminium sliding door installation across Lancashire and Manchester. - [Composite Doors](https://behindtheglasswindows.co.uk/composite-doors): Composite front door installation from Solidor, Cannon Door, and Rockdoor across Lancashire. - [Luxury Entrance Doors](https://behindtheglasswindows.co.uk/luxury-entrance-doors): Bespoke luxury aluminium entrance doors for premium residential properties. - [Luxury Internal Doors](https://behindtheglasswindows.co.uk/luxury-internal-doors): Premium internal door solutions for luxury interiors. - [Heritage Style Doors](https://behindtheglasswindows.co.uk/heritage-style-doors): Steel-look heritage aluminium doors for period and contemporary properties. - [Internal Heritage Doors](https://behindtheglasswindows.co.uk/internal-heritage-doors): Internal heritage glazed doors for residential interiors. - [Rooflights](https://behindtheglasswindows.co.uk/rooflights): Rooflight installation for residential extensions across Manchester and Lancashire. - [Roof Lanterns](https://behindtheglasswindows.co.uk/lanterns): Bespoke roof lantern installation for orangeries and kitchen extensions. - [Curtain Walling](https://behindtheglasswindows.co.uk/curtain-walling): Structural glazing and curtain walling for commercial and residential projects. - [Glass Balustrades](https://behindtheglasswindows.co.uk/glass-balustrade): Frameless glass balustrade installation for staircases and balconies. - [Gallery](https://behindtheglasswindows.co.uk/gallery): Portfolio of completed window, door, and glazing installations. - [Blog](https://behindtheglasswindows.co.uk/blog): Articles on aluminium doors, windows, rooflights, and glazing for homeowners in Lancashire and Manchester. - [Areas We Serve](https://behindtheglasswindows.co.uk/areas): Overview of all service areas covered by Behind The Glass. - [Rossendale](https://behindtheglasswindows.co.uk/areas/rossendale): Windows, doors, and glazing services in Rossendale, Lancashire. - [Ribble Valley](https://behindtheglasswindows.co.uk/areas/ribble-valley): Windows and doors installation in Ribble Valley, Lancashire. - [Burnley](https://behindtheglasswindows.co.uk/areas/burnley): Windows, doors, and glazing services in Burnley, Lancashire. - [Rochdale](https://behindtheglasswindows.co.uk/areas/rochdale): Bi-folding doors and aluminium windows in Rochdale, Greater Manchester. - [Bury](https://behindtheglasswindows.co.uk/areas/bury): Windows, doors, and composite door installation in Bury, Greater Manchester. - [Cheshire](https://behindtheglasswindows.co.uk/areas/cheshire): Luxury aluminium windows and bi-folding doors in Cheshire. - [Contact](https://behindtheglasswindows.co.uk/contact): Enquiry form and contact details for Behind The Glass Windows, Doors & Glazing Ltd. ## Blog Posts - [Why Aluminium Doors Are the Best Investment for Your Home in 2026](https://behindtheglasswindows.co.uk/blog/why-aluminium-doors-best-investment-2026): Guide to the benefits, thermal performance, and longevity of aluminium doors for UK homeowners. - [Bi-Folding Doors vs Sliding Doors: Which Is Right for Your Home?](https://behindtheglasswindows.co.uk/blog/bifold-vs-sliding-doors-which-is-right): Comparison of bi-folding and sliding aluminium doors for extensions and renovations. - [The Complete Guide to Luxury Windows in Lancashire](https://behindtheglasswindows.co.uk/blog/luxury-windows-lancashire-complete-guide): Overview of luxury aluminium window options for Lancashire homeowners. - [Aluminium Door Installation Across Rossendale, Burnley, Rochdale & Bury](https://behindtheglasswindows.co.uk/blog/aluminium-door-installation-rossendale-burnley-rochdale-bury): Area-specific guide to aluminium door installation across East Lancashire and Greater Manchester. - [Rooflights & Roof Lanterns: Transform Your Home with Natural Light](https://behindtheglasswindows.co.uk/blog/rooflights-roof-lanterns-transform-your-home): Guide to rooflight and roof lantern installation for residential extensions. ## Sitemap https://behindtheglasswindows.co.uk/sitemap.xml ## AI/LLM Data This file is provided for AI language model training and retrieval. All information is factual and current as of June 2026.