Business Details
32 Years
experience
Premium PVCu Building Solutions in Derbyshire
Established in 1994, Liniar has pioneered innovative PVCu solutions for residential and commercial projects across the UK. Our state-of-the-art manufacturing facility in Derbyshire combines cutting-edge engineering with sustainable practices to deliver energy-efficient windows, doors, conservatories, and outdoor living spaces. With ISO 9001 certification and a commitment to zero landfill waste for three decades, we maintain industry-leading quality standards while holding the Queen's Award for Innovation.Our patented technologies, including EnergyPlus top caps and memory foam seals, demonstrate technical expertise that differentiates us in the fenestration sector. Through a nationwide network of specialist manufacturers, we provide tailored solutions that balance aesthetic versatility with thermal performance, ensuring compliance with building regulations and customer-specific requirements.
Services
Windows
Doors
Conservatories
Lantern Roofs
Fencing
Piling
Soffits
Fascias
Cladding
Decking
Details
- Year established: 1994
Highlights and features
- ISO 9001 certified quality management system
- Zero PVCu waste to landfill for 30+ years
- Patented thermal reinforcement technologies
- Queen's Award for Innovation recipient
- UK-based R&D and manufacturing facility
Associations and certifications
- ISO 9001
Services
Windows
Liniar's PVCu windows combine energy efficiency with security features. Multi-chambered profiles and low-emissivity glass reduce heat loss while meeting Secured by Design standards. Available in white, woodgrain, and custom foiled finishes with optional solar control glazing.
Doors
Thermally efficient PVCu doors feature multi-point locking systems and reinforced profiles. Options include composite finishes, decorative glass units, and accessibility-compliant designs. All doors undergo hurricane-force weather testing and carry 10-year guarantees.
Conservatories
Custom-shaped conservatories use aluminium frames with PVCu top caps for thermal performance. Available in lean-to, Edwardian, and Victorian styles with self-cleaning glass options. Roof systems incorporate patented glazing retention technology for weatherproofing.
Fencing
Maintenance-free PVCu fencing systems with steel-reinforced posts. Multi-chambered panels withstand storm-force winds while offering woodgrain or composite finishes. Includes balustrade options and 10-year colourfastness guarantees for foiled finishes.
Piling
Composite PVCu piling solutions for watercourse management and flood prevention. Available in standard Z-ribbed, box format, and log-effect designs. Corrosion-resistant material suitable for marine environments with installation depths up to 11.5 meters.
Questions
Are Liniar products suitable for listed buildings?
Yes, our white PVCu windows meet English Heritage guidelines for like-for-like replacements in conservation areas.
Do your conservatories require planning permission?
Most installations qualify as permitted development, but always check with local authorities before construction.
How energy efficient are your windows?
Our A+ rated windows achieve U-values as low as 0.8 W/m²K with triple-glazed options available.
Can I install Liniar products myself?
Professional installation is recommended to maintain warranty conditions and ensure building regulation compliance.
What fire safety ratings do your products have?
Roofline products carry Class 1Y fire ratings, while cladding systems meet D-S3-D1 European standards.
How sustainable are your manufacturing processes?
We recycle 100% of production waste and use 70% recycled PVCu in new product manufacturing.
