RESPRAYING AND COATINGS FOR ALUMINIUM WINDOWS, DOORS AND CURTAIN WALLING
We offer cost effective respraying and coatings services for existing aluminium systems, including wet spraying, removal and re-powder coating of curtain wall caps and perimeter pressings, with full reinstatement. These services provide a practical solution for modernising building façades, enhancing appearance, and aligning with updated branding or corporate image, while maintaining system durability and enhancing visual appeal.
ENERGY CONTROL GLAZING FILMS TO REDUCE HEAT LOSS AND SOLAR GAIN
We supply and install performance glazing films designed to improve thermal efficiency, reduce heat loss, and manage solar gain in existing glazing systems. Suitable for commercial and public sector buildings, our retrofit films support improved internal comfort, glare control, and energy cost reduction. All installations are carried out by trained teams, ensuring compliance and minimal disruption to operations.
SECONDARY GLAZING SYSTEMS FOR ACOUSTIC CONTROL AND THERMAL PERFORMANCE
We supply and install secondary glazing systems designed to reduce heat loss, improve acoustic insulation, and enhance energy efficiency in existing buildings. Suitable for listed properties, high-noise environments, and sites with thermal upgrade requirements, our systems are tailored to meet performance and compliance standards. Installed nationwide with minimal disruption by experienced teams.
SUPPLY AND INSTALLATION OF BESPOKE ALUMINIUM PRESSINGS
We design, supply and install custom aluminium pressings for glazing interfaces, perimeter detailing and facade terminations. Manufactured to project specifications, our pressings are available in a full range of RAL, BS and anodised or metallic finishes. Designed for durability and visual continuity, they are installed to ensure weather resistance and alignment with the building envelope.
INSTALLATION OF WEATHERPROOFING PRODUCTS & COMPONENTS
We supply and install a range of weatherproofing products designed to improve the airtightness, water resistance, and energy efficiency of glazing systems. This includes the integration of seals, gaskets, draught exclusion systems, and perimeter materials to prevent air and water ingress. All components are selected for system compatibility and long-term performance, helping to reduce heat loss and support improved thermal performance.
RETROFIT WINDOW AND DOOR HARDWARE SPECIALISTS
We supply and install a wide range of hardware for commercial glazing systems, including locks, hinges, handles, closers, and both manual and automatic window and door controls. All components are selected for system compatibility and installed to meet current safety, access, and performance standards. Our technicians ensure correct operation and long term reliability across all applications.
Nationwide Retrofit Solutions for Businesses, Organisations and Industry Sectors
We deliver specialist retrofit solutions for windows, doors, curtain walling and façade systems across all sectors. Designed to improve in-situ performance, our services enhance thermal efficiency, reduce solar gain and heat loss, and support energy compliance targets. Retrofitting helps lower operational costs and carbon emissions while improving acoustic insulation, weather resistance and airtightness. Upgrades also address security, accessibility, and visual continuity, extending the functionality and lifespan of existing systems without full replacement.
Glazing Films
Installed internally with minimal disruption, they provide a non-invasive retrofit solution for improving building energy performance while supporting EPC ratings and compliance with sustainability objectives.
Secondary Glazing
Each system is designed to suit the existing opening, using modern framing and sealing to ensure improved acoustic and thermal performance while maintaining accessibility and visual continuity.
Respraying and Coatings
Re-coating improves aesthetics, extends product lifespan, and supports rebranding or compliance with planning requirements. All coatings are applied in accordance with manufacturer specifications and environmental standards for durability and finish.
Aluminium Pressings
These elements contribute to the weathering, visual consistency, and structural detailing of the building envelope, and are installed in line with glazing and façade tolerances to maintain performance and appearance.
Weatherproofing
All materials are specified for system compatibility and applied using tested methods to support energy efficiency, reduce operational costs, and ensure compliance with environmental and building standards.
Window and Door Hardware
Whether upgrading non-compliant components or replacing failed items, our installations ensure operational reliability, improved safety, and enhanced building performance.

Targeted Retrofit Services to Meet Sector Specific Requirements
We provide nationwide retrofit solutions for windows, doors, curtain walling and façade systems, supporting reduced carbon emissions and alignment with Net Zero targets. Our services are designed to improve thermal performance, reduce energy consumption and extend the operational life of existing glazing systems, offering a cost effective, low waste alternative to full replacement.
Delivered by qualified engineers and technicians, all works are completed in line with current energy, compliance and safety standards, with minimal disruption to operations.
How Our Retrofit Solutions Are Delivered
We specialise in delivering glazing retrofit solutions that improve thermal, acoustic, and energy performance across existing façades. Our structured approach ensures each retrofit project from enquiry to completion is delivered efficiently, safely, and in line with current industry standards. From initial assessment to final handover, we apply technical precision to minimise disruption and maximise system upgrade value.
Site Inspections
This stage determines the feasibility of interventions such as secondary glazing, high-performance film application, system upgrades, or façade recoating. Measured data supports safe planning, technical design, and compliance with building performance standards while ensuring the retrofit aligns with operational and aesthetic requirements.
Site Works and Installations
Works may include the installation of thermal films, secondary glazing, hardware upgrades, or recoated elements. All installations follow tested methods for airtightness, thermal performance, acoustic improvement, and interface sealing. Manual handling, lifting, and access activities are planned in advance and executed with minimal disruption to the building and its occupants.
Project Management
Quality control and compliance are verified through site audits, inspections and toolbox talks. Upon completion, a full Operations and Maintenance manual is issued, detailing installed works, warranties, system specifications and guidance for ongoing performance.
Trusted Commercial Door Solutions
At Door Engineers, our commitment to excellence in commercial door solutions is evident in the positive feedback we receive from clients across industries. Our focus on delivering high-quality, durable commercial doors and providing responsive, professional service has earned us outstanding reviews. From initial design to seamless installation and ongoing support, we make customer satisfaction our top priority.
Testimonials
Greenwood Commercial Properties

Pinnacle Industrial Services

Summit Warehousing

NexTech Manufacturing

BlueStone Logistics

Allied Structural Solutions

The Print Box

DRC Property Ltd

King Edward VI Academy Trust

King Edward VI Academy Trust

Your Trusted Nationwide Retrofit Partner
At Alu-Glaze, we deliver glazing retrofit solutions that enhance the energy, acoustic and thermal performance of existing building envelopes. Serving businesses and organisations across all sectors, our retrofit services are designed to extend system lifecycle, reduce energy demand and support regulatory compliance.
From technical assessment through to completion, each project is delivered with a focus on safety, system compatibility and measurable performance improvement. Our experienced teams provide solutions that align with Net Zero goals, modern accessibility standards and long-term operational efficiency without the cost or disruption of full replacement.
Partner With Us Today!
Start by filling out our contact form, feel free to include any drawings, schedules or attachments to help us fully understand your requirements. From consultation to implementation, we’re here to support you every step of the way!
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