What Thermosash does

Thermosash Commercial Limited is a privately held New Zealand facade engineering company founded in 1973 and headquartered in Henderson, Auckland. The company designs, manufactures, and installs bespoke engineered aluminium facade systems, including pressure-equalised unitised curtainwall (PW400, PW1000), the Delta 40 commercial window and door suite, total-vision structural glass assemblies, sloped glazing, solar shading (Shadegrate, Shadetread, fins and louvres), rainscreen cladding, balustrades, canopies, and the UP40 unitised partition suite, alongside specialist products such as the DeltaGuard anti-ligature security window system and the proprietary Decarbal super-low-carbon aluminium extrusion brand. The core technical platform combines in-house registered structural and facade engineers, an IANZ-accredited testing laboratory (WEC), three New Zealand manufacturing facilities (Auckland, Petone-Wellington, Christchurch), and a Levin office for design, CNC fabrication, and site delivery.

Thermosash sells through a direct enterprise field-sales model with dedicated offices in Auckland, Wellington, Christchurch, and Levin, plus a Brisbane presence serving Australia. The company engages early with architects and engineers via NZIA-recognised CPD programmes and industry sponsorships (WGANZ, NZIOB, NZGBC, PHINZ, MATES in Construction), and is a Masterspec partner with branded specification sections for its systems. Strategic partnerships include Schüco (NZ aluminium facade channel), Woods Glass (structural glass assembly), and a local NZ-owned aluminium extruder (Decarbal low-carbon supply). Customers span commercial offices, education (University of Auckland, AUT), finance (ASB, AMP, Deloitte), healthcare and mental health (Te Whatu Ora, Wellington Hospital), airports, retail, and high-end residential projects.

Revenue is generated primarily through one-off bespoke project contracts covering design, manufacture, and installation of facade systems, supplemented by a service and maintenance stream (facade reports, leak investigations, warranty compliance) and laboratory/engineering services offered through WEC. Pricing is quote-based and not publicly disclosed; contract values reflect project scope, system complexity, and integration with structural and environmental loading requirements (seismic, wind, climate). The company remains New Zealand-owned under independent management with no external investment disclosed.

Name

Thermosash

Legal name

Thermosash Commercial Limited

Website

https://thermosash.co.nz

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

251–500 employees

Short description

Thermosash Commercial Limited is a privately held New Zealand facade engineering company, founded in 1973, that designs, manufactures and installs bespoke aluminium curtainwall, commercial windows and doors, structural glass, and solar-shading systems for institutional, commercial, healthcare and high-end residential projects.

Ownership category

akta.pro rank

Product category

Commercial Facade Systems

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB)

akta.pro secondary industries

Facade & Cladding Systems (Rainscreens, Panels, EIFS, Siding) (IMAFAMAB), Storefronts, Curtain Wall & Window Wall Systems (IMADAIAG)

Keywords

• Engineered facade systems
• Commercial curtainwall
• Structural glass assemblies
• Building envelope solutions
• Aluminium window systems

Headquarters

HQ city

Auckland

HQ country

New Zealand

HQ region

Oceania

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Facade Design, Manufacturing, and Installation: Thermosash provides world-class solutions in the design, manufacture, and installation of bespoke engineered high-performance facade systems. Revenue is generated through project-based contracts covering custom engineered aluminium facade systems, curtainwall, windows, doors, structural glass, solar shading, and rainscreen products. The company operates with an integrated full-service approach ensuring single provider accountability from concept to completion.
2. Service and Maintenance: Thermosash Service & Maintenance offers professional services for commercial buildings including warranty compliance programmes, maintenance inspections, facade reports and advice, facade leak investigations and repairs, and emergency facade repairs.
3. Laboratory Testing Services (WEC): Window Engineering Consultants (WEC) offers engineering advice and undertakes physical testing to International Standards, operating as an IANZ accredited laboratory. Services include new product or project testing as well as technical reports on existing buildings with defective exterior cladding requiring remedial programs.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Thermosash designs, manufactures and installs bespoke engineered high-performance aluminium facade systems including curtainwall, commercial windows and doors, structural glass, solar shading, rainscreens, canopies and balustrades. The company delivers an integrated full-service offering spanning in-house consultation, structural and facade engineering, prefabricated manufacturing across three NZ plants, and expert installation. Complementary services include WEC IANZ-accredited laboratory testing, facade maintenance and warranty programmes, and facade sustainability optimisation tools.

Product overview

Thermosash Commercial Ltd is a New Zealand-owned facade solutions company offering an integrated suite of bespoke engineered high-performance building envelope systems. Founded in 1973, the company provides end-to-end delivery spanning consultation, design, engineering, manufacturing, and installation across curtainwall (PW400, PW1000, Delta Commercial), commercial windows and doors (Delta 40, DeltaGuard, revolving and frameless doors), total vision and structural glass (including Bow Truss, spider/patch fittings, and structural glass canopies), sloped glazing (Alpha Glazing), solar shading (Shadegrate, Shadetread, fins and louvres), metal facades (pressings, folding, perforated metals), mechanical louvres, channel glazing, rainscreens (RS1000, WS1000, cassette, and ENCLAD support systems), canopies, balustrades, thermal suites, and the UP40 unitised partition suite. The portfolio also encompasses a full range of glass and metal materials (toughened, ceramic frit, IGU, aluminium) and complementary services including WEC IANZ-accredited laboratory testing, facade sustainability optimisation tools, and a Schüco authorised partnership. All products are available with the proprietary Thermosash Decarbal super-low carbon aluminium extrusions. Thermosash operates manufacturing facilities in Auckland, Wellington, Christchurch, and Levin, with in-house engineering, CAD/CAM, CNC machining, and experienced installation teams.

Differentiator

Problem solved

Functional benefit

Brands

• Decarbal: Super-low carbon aluminium extrusions with significantly reduced carbon footprint compared to local and global alternatives
• ENCLAD
• DeltaGuard
• Shadegrate
• Shadetread
• UP40
• WEC (Window Engineering Consultants)

Products and services

• Curtainwall Systems High-performance pressure-equalised aluminium curtainwall systems, including PW400 four-sided mechanically engaged unitised curtainwall and PW1000 four-sided structurally glazed unitised curtainwall. Designed for commercial building envelopes with seismic and wind loading compliance and integration with diverse cladding materials.
• Delta 40 Commercial Door, Window and Slider Suite Aluminium commercial window, door and sliding suite featuring uniquely tenoned frame construction, integrated seismic frames, pressure seals for rainscreen performance, integral drainage channels, and support for fixed, awning, casement, hopper, spinner and sliding sashes with 4-28mm glazing.
• Thermosash DeltaGuard Security Window System Bespoke anti-ligature, high-impact-resistant security window and door suite for mental health and healthcare facilities. Features weapon deterrents, anti-contraband design, quick glass replacement, passive ventilation and integration with interstitial blind systems.
• Total Vision Structural Glass Engineered structural glass assemblies (suspended or spider glazing) delivering frameless entrances to fully glass structures. Bespoke engineering, manufacturing and installation with proprietary spider fittings and oversized high-performance glass sourced via Woods Glass.
• Alpha Glazing Sloped Glazing System Capped skylight and atrium glazing bar system installable to a minimum 5-degree slope, with thermal break, integral drainage, condensation control, and compatibility with the Delta Suite and opening sashes or louvre banks.
• Shadegrate and Shadetread Aluminium Grating Shadegrate is a non-trafficable architectural open-grate aluminium screen installed horizontally or vertically for solar shading, mechanical plant screening and code-compliant balcony balustrades. Shadetread is a trafficable open-grate aluminium flooring and access floor system used for facade maintenance and within twin-wall curtainwall cavities as a passive ventilated shading device.
• Solar Shading Aluminium Fins and Louvres Bespoke aluminium fin and louvre solar shading solutions engineered in-house, available in extruded and composite configurations, designed to project-specific wind, seismic and solar shading requirements.
• Metal Folding and Finishing Architectural metal pressings, folding and perforated sheet metal products manufactured in-house using CNC machinery for feature cladding, sunscreens and decorative architectural metalwork.
• Mechanical Air Louvres Mechanical air louvres designed for integration with curtainwall and commercial window systems, providing controlled ventilation while maintaining weather performance.
• Channel Glazing Channel glazing system providing minimal-framing facade solutions for vision and spandrel areas.
• Facade Canopies Facade canopy systems including structural glass canopies and other overhead glazed coverings for building entrances and covered outdoor areas.
• Balustrades Architectural balustrade systems engineered to project-specific structural and safety requirements, including code-compliant Shadegrate-based balcony balustrades.
• Rainscreen Cladding Systems Complete rainscreen cladding systems including RS1000 pressure-equalised open-joint cladding, WS1000 fully flushed sealed-joint cladding and cassette rainscreens, supporting diverse flat or 3D panel materials including folded ACM, zinc, stainless steel, finished aluminium and terracotta.
• ENCLAD Rainscreen Support Systems Proprietary Thermosash sub-brand of rainscreen support systems engineered to efficiently support a wide range of rainscreen cladding materials using an engineered structural backpan and pressure-equalised cavity design.
• UP40 Unitised Partition Suite Sleek unitised partition suite engineered for seamless factory assembly and sustainable demountability and reuse, supporting circular economy principles in building fitouts.
• Thermal Suites Thermally broken facade systems designed to minimise thermal bridging and improve building energy performance, including thermal curtainwall and window configurations.
• High-End Residential Windows and Doors

Quantifiable outcome

• Innovation 5a achieved 5 Green Star Office Built Custom rating (2020) using PW1000 unitised curtainwall with large format porcelain tiles
• +2 more outcomes

Named customers25 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Five partnerships are on record, tiered core and minor.

• SchücocoreChannel Partner/ Reseller/ DistributorThermosash is a Schüco Partner, operating a dedicated Thermosash Schüco Partner website showcasing their range of Schüco products and New Zealand projects. This partnership provides Thermosash access to Schüco's product portfolio for the New Zealand market.
• Woods GlasscoreStrategic or Co-development PartnerThermosash, in partnership with Woods Glass, are the specialists in engineered structural glass assemblies and total vision systems in New Zealand. Woods Glass provides extensive experience in sourcing proprietary spider fittings and high-performance oversized glass, while Thermosash undertakes structural engineering and manufacturing for customised solutions.
• Local NZ-owned Aluminium ExtrudercoreStrategic or Co-development PartnerThermosash sources super low-carbon aluminium extrusions from a local NZ-owned extruder for their Thermosash Decarbal low-carbon aluminium systems, supporting local supply chain and sustainability goals.
• Local PowdercoatersminorOthersThermosash exclusively uses local powdercoaters who have stringent sustainable handling processes for finishing aluminium facade components.
• WEC (Window Engineering Consultants)coreStrategic or Co-development PartnerWEC is part of the Thermosash Group and offers engineering advice and undertakes physical testing to International Standards as an IANZ accredited laboratory. Services include new product/project testing and technical reports on existing buildings with defective exterior cladding requiring remedial programs.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Alspec: Alspec is one of Australia's largest manufacturers and distributors of aluminium architectural systems, windows, doors, and curtain wall — a regional peer in the trans-Tasman facade market where Thermosash also operates.

Direct peers

• Kawneer: Kawneer (part of Arconic) is a major North American/global manufacturer of aluminium architectural systems including curtain wall, windows, and storefronts — directly comparable to Thermosash's commercial facade suite offerings.
• WICONA: WICONA (part of Hydro) is a leading European developer of aluminium building envelope systems including curtain wall, windows, and doors — directly comparable to Thermosash's engineered facade suite approach and project-based delivery.
• Reynaers Aluminium: Reynaers is a Belgian-headquartered global manufacturer of aluminium curtain wall, windows, doors, sliding systems, and integrated facade solutions — directly comparable to Thermosash's product breadth and bespoke engineered approach.
• Permasteelisa Group: Permasteelisa is a global specialist in bespoke engineered curtain walls and architectural envelopes for premium and complex buildings — directly comparable to Thermosash's structural glass, curtainwall, and bespoke facade delivery.
• Schüco: Schüco is a global German leader in aluminium curtainwall, windows, doors, and facade systems. Thermosash is an authorised Schücco Partner in NZ, making Schücco the most directly comparable peer given overlapping product portfolios and engineering depth.
• Aluk Group: Aluk designs and engineers aluminium windows, doors, curtain wall, and sliding systems globally with engineered facade suites — comparable to Thermosash's product categories and integrated design-to-install delivery model.

Emerging players

• Facade Technologies International: A unitised facade and curtainwall specialist focused on the Australasian market — comparable to Thermosash's unitised prefabricated curtainwall (PW400, PW1000) systems and trans-Tasman reach.
• Vitrocsa: Vitrocsa specialises in minimal-frame and frameless structural glass facades and sliding systems — comparable to Thermosash's Total Vision structural glass and Bow Truss offerings for visually complex installations.

Broad incumbents

• ASSA ABLOY Entrance Systems: ASSA ABLOY Entrance Systems is the global incumbent in automatic entrance solutions including revolving doors — comparable to Thermosash's revolving door and commercial entrance offerings within a broader access portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Thermosash
• LinkedInlinkedin.com/company/thermosash-commercial-limited
• Instagraminstagram.com/thermosashcommercial/?hl=en

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Thermosash