Commercial Aluminium Windows & Doors Installers

What are Commercial Window and Door Installers?

Aluminium Window with a dark shadow that is projecting onto the building

Glass Plus designs, supplies and installs commercial aluminium windows and doors for businesses, public sector organisations and industrial premises across London and the Home Counties.

Based in Fen End, Stotfold, near Hitchin, we work with contractors, facilities managers, schools, offices, retail premises, hospitality venues and industrial sites that require durable, secure and professionally installed aluminium glazing systems.

Whether you are replacing ageing windows, upgrading commercial entrance doors or planning a large-scale refurbishment, we can provide bespoke aluminium solutions designed around your building, operational requirements and project specifications.

Why Choose Aluminium for Commercial Buildings?

Strong and durable construction: Quick repairs keep shops, offices, and schools operational without long closures.

Low maintenance requirements: Restores the integrity of windows and doors, protecting premises from break-ins.

Modern appearance: Ensures commercial properties look polished and welcoming for customers and clients.

Excellent resistance to weathering: Early repairs stop minor glazing issues from becoming costly, extensive problems.

Long service life: Quick repairs keep shops, offices, and schools operational without long closures.

 

Slim sightlines: Restores the integrity of windows and doors, protecting premises from break-ins.

Compatible with commercial glazing services: Ensures commercial properties look polished and welcoming for customers and clients.

Suitable for large glazed areas: Early repairs stop minor glazing issues from becoming costly, extensive problems.

Commercial Aluminium Windows & Doors for Modern Buildings

Commercial and industrial buildings require glazing systems that can withstand daily use whilst maintaining security, appearance and long-term performance.
Aluminium has become one of the most popular choices for commercial glazing because it offers exceptional strength, slim sightlines, low maintenance requirements and a modern professional appearance.
Glass Plus supplies and installs commercial aluminium windows and doors for:

•Office buildings
•Schools and colleges
•Retail units and shopping centres
•Hospitality venues
•Industrial units and warehouses
•Public sector buildings
•Commercial refurbishments
•New build developments

Our Aluminium Windows and Doors services are focused on commercial and industrial properties rather than domestic installations.

Bespoke Aluminium Windows & Doors

No two commercial buildings are the same. Every project has unique requirements relating to access, security, aesthetics, usage and compliance.
We provide bespoke aluminium windows and doors that can be tailored to suit a wide range of commercial environments.
Options include:

•Fixed aluminium windows
•Opening aluminium windows
•Casement aluminium windows
•Commercial entrance doors
•Staff access doors
•Aluminium-framed glazed screens
•Safety glazing solutions
•Powder-coated frame finishes
•Aluminium systems integrated with commercial shop fronts
•Aluminium systems integrated with curtain walling and façades

Our team can work from drawings, specifications, site surveys or refurbishment plans to deliver the most suitable solution for your premises.

Supply, Installation & Repair

Glazing Testimonials

Why Choose GlassPlus?​

Choosing the right glazing partner can make all the difference to your project. At GlassPlus, we combine decades of experience with a commitment to safety, quality and service that sets us apart.
Proven expertise – over 30 years in glazing, fenestration and repairs

  • Fully compliant – all installations meet current building and safety regulations
  • Reliable service – rapid response times for repairs and emergencies
  • Comprehensive coverage – commercial projects in London and repairs across the Home Counties
  • Trusted by many – working with contractors, developers, schools and retailers

We’re proud to be trusted by contractors, architects, schools and retailers across London and the Home Counties. Here’s what some of our clients have to say:

Commercial Aluminium Window Installers

Older commercial windows can create a range of problems, including poor appearance, increased maintenance requirements, security concerns and reduced comfort within the building.
As experienced commercial aluminium window installers, Glass Plus helps organisations modernise their buildings with durable aluminium glazing systems designed for long-term performance.
Common projects include:
•Commercial window replacements
•Office refurbishment programmes
•School glazing upgrades
•Retail property improvements
•Industrial unit modernisation
• New commercial developments
Our installations are designed to minimise disruption whilst delivering a high-quality finish that enhances both the appearance and functionality of the building.

Aluminium door

Commercial Aluminium Doors

Commercial entrance doors often experience heavy daily usage and must remain secure, reliable and visually appealing.
Glass Plus installs aluminium door systems suitable for:
•Main building entrances
•Office reception areas
•Retail premises
•Educational facilities
•Hospitality venues
•Industrial buildings
•Staff access points

Aluminium doors offer a durable and practical solution for commercial environments where reliability and longevity are essential.

Suitable for a Wide Range of Commercial Sectors

Glass Plus regularly works with:
•Main contractors
•Property developers
•Facilities managers
•Managing agents
•Commercial landlords
•Schools and educational establishments
•Retail operators
•Industrial businesses
•Hospitality venues
Whether your project involves a single entrance door or a complete building refurbishment, we can provide practical aluminium glazing solutions that support your operational requirements.

Commercial Aluminium door

Our Installation Process

Initial Consultation
We discuss your building, objectives, project requirements and timescales.

Site Assessment
We review measurements, access requirements and any project documentation.

Solution Recommendation
We recommend the most appropriate aluminium window and door system for the building.

Quotation
A detailed quotation is prepared based on the agreed scope of works.
Installation
Our experienced team completes the installation safely, efficiently and with minimal disruption.

Completion
The project is inspected and completed to ensure the finished installation meets expectations.

Why Choose Glass Plus?

Glass Plus has more than 30 years of experience delivering commercial glazing solutions throughout London and the Home Counties.

Based in Fen End, Stotfold, near Hitchin, we support projects across Hertfordshire, Bedfordshire, Buckinghamshire, London and surrounding areas.

Clients choose Glass Plus because of our:
Commercial glazing expertise

•Bespoke approach

•Experienced installation teams

•Focus on quality workmanship

•Knowledge of commercial environments

•Ability to deliver both refurbishment and new build projects

•Wide range of commercial glazing services

Frequently Asked Questions

Do you install aluminium windows and doors for homes?

No. This service is focused exclusively on commercial and industrial properties.

Where is Glass Plus based?

Glass Plus is based in Fen End, Stotfold, near Hitchin and serves clients across London and the Home Counties.

What types of buildings are aluminium windows suitable for?

Aluminium windows are suitable for offices, schools, retail units, hospitality venues, industrial buildings and public sector properties.

Are aluminium windows durable?

Yes. Aluminium is highly durable, weather-resistant and suitable for high-traffic commercial environments.

Can aluminium windows and doors be made to measure?

Yes. Bespoke aluminium systems can be designed around the specific requirements of the building.

Do you install aluminium entrance doors?

Yes. We install aluminium entrance doors for a variety of commercial and industrial premises.

Can you replace existing commercial windows?

Yes. We regularly replace outdated or damaged commercial windows as part of refurbishment and improvement projects.

Can aluminium systems be integrated with shop fronts?

Yes. Aluminium windows and doors can often be incorporated into wider commercial shop fronts and façade systems.

What information do you need to provide a quote?

Building location, dimensions, photographs, drawings, specifications and timescales are all helpful.

Why choose Glass Plus?

Glass Plus combines over 30 years of commercial glazing experience with a bespoke approach to delivering practical aluminium glazing solutions.

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