Curtain Walling built for daily commercial use.
Curtain walling transforms buildings into architectural statements while delivering exceptional performance. We install, repair and maintain curtain wall systems for commercial developments, working seamlessly with main contractors, architects and building owners to deliver projects on time and to specification across London and the South East.
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Clients We've Worked With
Trusted by leading brands across retail, corporate, education and public sectors
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WTW — Watson House, Reigate
Comar curtain walling infill screens, a new Comar 7Pi commercial door set and replacement glazing — delivered around live office operations with full RAMS and permit coordination.
Client
WTW
Location
Watson House, Reigate
Sector
Commercial Office
Service
Curtain Walling & Door
Scope
Supply & Install
Delivery
Office-hours, RAMS-led
The challenge
A coordinated upgrade to an existing glazed entrance and screen arrangement within a live commercial office — RAMS, permit coordination, engineer details and exclusion zones all handled in advance, with the new installation sitting cleanly within the existing façade (RAL 9016).
The outcome
A clean, upgraded commercial entrance and curtain walling solution — improved appearance, function and finish across the elevation. Damaged glazing was replaced, the installation commissioned, adjusted and handed back ready for use.
Scope of works
- Removal of the existing door set(s) to suit the new arrangement
- Comar curtain walling infill screens — supply & install
- Comar 7Pi thermally broken commercial door set
- AXIM 7085 panic hardware with external key access
- Concealed transom closer
- Replacement of 1no. 24mm black painted toughened sealed unit
- Internal & external perimeter sealing and making good
- Final commissioning, adjustment & handover
- Full RAMS, permit coordination and site attendance
What our clients say
"Zach's team handled a difficult curtain walling repair on a live office building with zero disruption to tenants. Spot on."
Sarah Williams
Property Manager • London
"Used NZR for two school holiday installs — both finished on time with all paperwork in order."
Priya Shah
Estates Officer • Education
"Reliable, professional, and always available when we need them. Their planned maintenance keeps our stores running smoothly across multiple sites."
James Thompson
Facilities Manager • Multi-site Retail
"Highly recommend NZR. Complex shopfront requirements delivered exactly as needed. Great communication throughout."
George Meco
Business Owner • Retail
Commercial glazing services
Complete glazing solutions for businesses, FM companies, schools and public sector organisations across London and the South East.
Curtain walling & façade installation
Stick, unitised and SSG façades — design support and installation. Send drawings or elevations if you have them.
Curtain Walling FAQs
Do you replace curtain wall glazing units and gaskets?
Yes, we replace failed sealed units, damaged glass panels and deteriorated gaskets in curtain wall systems. We match existing specifications and can source compatible glass for most systems to maintain the facade's appearance and performance.
Can you reseal and stop leaks in curtain walling?
Yes, water ingress through curtain walling is a common issue we resolve. We inspect, diagnose leak sources and carry out professional resealing using appropriate silicones and gaskets. We also address drainage and pressure equalisation issues.
How do you handle access for high-level curtain wall work?
We provide or coordinate access solutions including scaffolding, mobile elevated work platforms (MEWPs), cradle access and abseil teams where required. We work with specialist access providers and manage all safety requirements.
Can you replace spandrel and infill panels in curtain walls?
Yes, we replace spandrel panels, infill panels and shadow boxes in curtain wall systems. We match existing finishes—whether back-painted glass, aluminium composite or insulated panels—to maintain facade consistency.
How do you minimise disruption in live buildings?
We plan work carefully around building operations, use protective measures for occupied spaces below, work section by section where appropriate, and can schedule work outside core hours. Our teams are experienced in occupied building protocols.
Do you install new curtain walling systems?
Yes, we install new curtain wall facades for commercial developments, working with architects and main contractors. We handle stick systems and capped/uncapped options, coordinating with other building systems and programmes.
What manufacturers' curtain wall systems do you work with?
We work with all major curtain wall systems including Schüco, Reynaers, Kawneer, SAPA, Aluprof and others. Our engineers are trained on multiple systems and can source compatible parts and glazing for repairs.
Do you provide maintenance contracts for curtain walling?
Yes, we offer planned maintenance programmes including regular inspection, sealed unit condition monitoring, gasket checks, drainage clearance and resealing. This helps extend system life and prevents costly failures.
Can you provide thermal upgrade solutions for older curtain walls?
Yes, we can upgrade glazing units to improve U-values, install secondary glazing internally, and address thermal bridging issues. We assess each system individually and recommend cost-effective improvement options.
Do you work as a subcontractor on commercial projects?
Yes, we regularly work as a specialist glazing subcontractor for main contractors on commercial developments. We provide full RAMS, coordinate with site programmes, and meet all main contractor requirements.
What documentation do you provide for curtain wall work?
We provide comprehensive documentation including method statements, risk assessments, material certificates, test data, installation records and O&M manuals. This supports building compliance files and future maintenance.
Can you address condensation issues in curtain walling?
Yes, we diagnose and address condensation problems—whether caused by failed sealed units, inadequate ventilation or thermal bridging. We recommend and implement appropriate solutions based on the root cause.
How quickly can you respond to curtain wall emergencies?
For urgent issues like broken glass at height or water ingress, we respond rapidly—typically within 2-4 hours in London. We make-safe, board where necessary and coordinate fast-track permanent repairs.
Do you handle curtain wall cleaning coordination?
While we don't provide cleaning services directly, we can coordinate with specialist facade cleaning contractors and provide access solutions. We also advise on cleaning regimes that won't damage seals or finishes.