Porshseal delivers PAS 24 certified, high-performance aluminium, UPVC, and aluminium-wood composite doors & windows -- engineered in our own factory for superior thermal insulation, sound reduction, and security.
29+
Years Manufacturing
50+
Export Countries
ISO
9001 Certified
PAS 24
UK Security Standard
Security Certification
Porshseal achieved PAS 24 certification in 2025 -- the UK's leading "Secured by Design" standard for enhanced security performance in doors and windows. This certification is mandatory for projects under the UK Approved Document Q and is recognised by major UK insurance providers and housing authorities.
Door PAS 24 Security Test Report
Window PAS 24 Security Test Report
See It In Action
Porshseal Doors and Windows & Product testing process
29+
Years of
Manufacturing
UK
British Heritage
Technology
PAS24
Certified
Products
ISO
Quality
Management
What You'll See
Performance Engineering
We provide full-process dedicated service from pre-construction survey and on-site installation to after-sales support, delivering a hassle-free one-stop solution for all door and window installation needs, suitable for local residential and commercial properties.
Our professional team conducts on-site inspections, accurately measures and assesses the conditions on the spot, and tailors a complete door and window solution that precisely meets your specific needs for you.
The local installation team adheres to strict construction standards to ensure that each frame is installed precisely, the structure is stable, and the appearance is clean and professional.
We stand behind every product with dedicated local after-sales support, prompt maintenance response, and a comprehensive long-term service guarantee -- giving you complete peace of mind for years to come.
Our Range
From UPVC to premium aluminium alloy -- every system is manufactured in our own facility with full traceability and quality control.
Slimline profiles with exceptional strength-to-weight ratio. Ideal for modern commercial and high-end residential projects.
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Our founding product line -- British-origin UPVC profiles with excellent thermal performance and low maintenance requirements.
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Bulletproof and blast-resistant systems developed in collaboration with military institutions. For embassies, banks, and critical infrastructure.
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As a direct manufacturer with 29 years of experience, we eliminate middlemen -- giving our B2B partners and overseas distributors competitive pricing, full transparency, and dedicated technical support.
Become a DistributorWe manufacture everything in-house -- from raw aluminium extrusion to final assembly. You deal directly with the source, ensuring better pricing and full quality traceability.
Founded as a Sino-British joint venture in 1997, we imported UK production lines and training from day one. Our British DNA ensures compliance with international quality expectations.
Our dedicated export team handles everything -- technical documentation, compliance certificates, shipping, customs, and after-sales support across the UK, EU, and North America.
Recognised as an Excellent Supplier for Shanghai Disneyland. Exporting successfully since 2000 to 50+ countries with zero-compromise quality standards.
29+
Years Manufacturing
50+
Export Countries
10K+
Projects Completed
4
International Certs
Who We Serve
From global property developers to individual homeowners seeking the best -- Porshseal serves clients who refuse to compromise on quality.
Large-volume supply for residential and mixed-use developments. Competitive bulk pricing, consistent quality across all units, and on-time delivery schedules.
Exclusive territory partnerships with full marketing support, technical training, and competitive wholesale pricing for UK, EU, North American, and Australian distributors.
Custom profile configurations, bespoke colour matching, and technical drawings support for specification-driven projects demanding both aesthetics and performance.
Reliable supply chain partner for large-scale construction projects. Site-ready delivery scheduling and dedicated project management from order to installation.
For discerning homeowners who want the best. Custom-made to your exact specifications with full consultation, measurement, and design guidance.
Recognised as an Excellent Supplier for Shanghai Disneyland -- one of the world's most demanding quality benchmarks. A testament to our manufacturing precision and reliability.
Get in Touch
Tell us your project requirements and our technical sales team will respond within 24 hours with a detailed quote, product specifications, and certification documents.
Get in Touch
Company
Suzhou Porshseal Building Materials Co., Ltd.
Address
No.505 Jiushenggang Road, Wuzhong District, Suzhou, China.
Company
Beijing Kara Technology Co., Ltd.
Address
No. 1508, Greenland World Cultural Finance City, Gucheng South Street, Shijingshan District, Beijing, China