Business Details
Premium Steel Windows and Doors in Haslemere
Clement Windows has established itself as a leader in steel fenestration solutions, serving residential clients and building professionals across the UK, Europe, and the USA. With decades of combined experience, our team specialises in crafting high-quality steel windows, doors, and conservation rooflights that seamlessly blend heritage aesthetics with modern performance standards. Our ISO 9001 and ISO 14001 certified manufacturing processes ensure precision engineering, while our commitment to sustainability and technical innovation positions us at the forefront of the industry. From traditional restoration projects to contemporary new builds, we deliver tailored solutions that meet rigorous insulation, security, and conservation requirements.Our reputation for excellence is evidenced by prestigious projects involving Listed Buildings, Conservation Areas, and award-winning architectural schemes. Client testimonials consistently highlight our attention to detail, responsive service, and ability to replicate historic designs while incorporating thermal efficiency. As a RIBA-accredited CPD provider, we maintain strong partnerships with architects and designers, offering NBS Source-compliant specifications and comprehensive technical support throughout the project lifecycle.
Services
Steel Windows
Steel Doors
Conservation Rooflights
Heritage Replication
Thermal Upgrades
Highlights and features
- ISO 9001-certified manufacturing processes ensure precision engineering
- Specialists in heritage replication with modern thermal performance
- Bespoke solutions for Listed Buildings and Conservation Areas
- 20+ years experience in residential and commercial steel fenestration
- NBS Source-compliant specifications for architectural projects
Associations and certifications
- ISO 9001
- ISO 14001
- RIBA Accredited CPD
What people say
Outstanding service
High quality
Perfect fit
Exceeded expectations
Energy efficiency
Services
Steel Windows
Our steel windows combine traditional craftsmanship with modern thermal efficiency. Available in multiple ranges including EB20 and Brooking, these windows maintain heritage aesthetics while achieving B Window Energy Ratings. Manufactured in our ISO-certified facility, they feature powder-coated finishes exceeding industry durability standards. Ideal for both conservation projects and contemporary builds requiring slim sightlines and enhanced performance.
Conservation Rooflights
Victorian-style conservation rooflights designed for heritage projects. Available in slate and tile profiles with flush fitting installation. Achieve A+ BFRC energy ratings while maintaining historical accuracy. Custom sizes available with comprehensive technical support including installation guides and maintenance recommendations for long-term performance.
Steel Doors
Thermally broken steel doors offering security and aesthetic appeal. Available in replica, interior, and exterior configurations with fire-rated options. Customisable with various glazing and colour choices, including 10-year warranty protection. Designed to complement both historic and modern architectural styles while meeting current building regulations.
Heritage Replication
Specialist replication of original steel windows and doors for Listed Buildings. Using traditional techniques combined with modern materials, we recreate authentic designs while improving insulation and security. Detailed templating ensures perfect fit for arched and irregular openings in conservation areas.
Thermal Upgrades
Modern thermal performance enhancements for heritage properties. Double-glazed steel systems with slim profiles maintain visual integrity while reducing heat loss. Our solutions help achieve conservation approval and improve energy efficiency without compromising historical character in protected buildings.
Questions
What types of steel windows do you offer?
We provide EB16, EB20, EB24, SMW, Brooking, W20, W40, MW40, and Naked Steel ranges with options for heritage replication and modern thermal efficiency.
Are your products suitable for listed buildings?
Yes, our conservation range meets Listed Building and Conservation Area requirements while maintaining historical accuracy and improving performance.
Do you offer custom-sized solutions?
We manufacture bespoke steel windows, doors, and rooflights tailored to specific architectural requirements and unusual dimensions.
What accreditations do you hold?
We maintain ISO 9001 for quality management, ISO 14001 for environmental standards, and RIBA Accredited CPD provider status.
Can you supply technical specifications?
All products are available through NBS Source with CAWS and Uniclass 2015 classifications for detailed architectural specifications.
What after-sales support do you provide?
We offer comprehensive aftercare including maintenance guidance, technical support, and warranty coverage for all manufactured products.
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