Business Details
Authentic Sash Windows with Modern Performance
We are specialists in Sash Windows with over three decades of expertise in creating authentic, high-quality window solutions. Our exclusive focus on sash windows allows us to combine traditional aesthetics with modern performance, offering products that replicate the elegance of timber while delivering low-maintenance durability. Our Bygone Collection features patented Timberweld technology and FINEO vacuum-insulated glazing, achieving 1.2U-values for superior thermal efficiency. Backed by BBA certification and a 12-year guarantee, our windows undergo rigorous testing to meet conservation requirements while exceeding modern building standards.Our Master Installers, trained to NVQ level, ensure precise installations across residential and commercial properties, including listed buildings and large-scale developments. We maintain quality control through ISO-certified processes and voluntary audits by independent bodies, demonstrating our commitment to excellence in every aspect of production and service.
Services
Sash Windows
Conservation Windows
Timber Alternative Windows
FINEO Glazing
London Sash System
Highlights and features
- 30+ years specialising exclusively in sash window manufacturing
- BBA-approved products with 30-year lifecycle certification
- 12-year guarantee covering both product and installation
- Nationwide network of NVQ-trained Master Installers
- Pioneering Timberweld technology for authentic timber aesthetics
Associations and certifications
- British Board of Agrment
- ISO 9001
- Secured by Design
What people say
Perfect match for old ones
Excellent service and installation
Secure and energy-efficient
Authentic timber appearance
Professional Master Installers
Services
Symphony Sash Windows
Our flagship Symphony range combines Georgian elegance with modern performance. Featuring super-slim 39mm meeting rails and continuous run-through horns, these windows replicate 17th-century designs while incorporating 21st-century technology. The patented Timberweld construction creates authentic mortise-and-tenon joints sealed against the elements, while FINEO vacuum-insulated glazing achieves 1.2U-values for exceptional energy efficiency. Ideal for conservation areas requiring period authenticity with contemporary thermal performance.
Harmony Sash Windows
The versatile Harmony collection offers tailored solutions for period and modern properties. Optional super-slim mid-rails and deep bottom rails maintain traditional proportions, while the flexible design accommodates budget considerations without compromising aesthetics. Available with heritage colours and authentic Georgian bars secured using our patented GeorgiClip system, these windows balance cost-effectiveness with the authentic appearance required for listed buildings and conservation areas.
FINEO Glazing Solutions
Our FINEO vacuum-insulated glazing technology delivers triple-glazing performance in a 10mm profile. This innovative solution maintains traditional window proportions while eliminating cold bridging through its sealed vacuum cavity. With thermal transmittance values surpassing conventional triple glazing, FINEO units preserve historical aesthetics in sash windows while achieving modern energy efficiency standards for both new builds and heritage renovations.
London Sash System
Specifically designed for Victorian properties with arched exteriors and square interiors, this exclusive system maintains original architectural character during window replacements. The bespoke CAD-designed frames ensure perfect fitment while incorporating modern security features and low-maintenance materials. Ideal for London and Home Counties properties requiring period-appropriate replacements that meet current building regulations and energy efficiency requirements.
Timberweld Technology
Our patented Timberweld process creates PVC-U joints that visually and functionally replicate traditional timber butt joints. This advanced welding technique produces sealed, draught-proof corners indistinguishable from handcrafted wooden joints, while maintaining the durability of modern materials. The system's weatherproof construction eliminates open chambers that could allow water ingress or insect infestation, ensuring long-term performance with authentic visual appeal.
Questions
Are your windows suitable for conservation areas?
Yes, our Bygone Collection windows are specifically designed to meet conservation requirements with authentic timber aesthetics and PAS24 security compliance.
What makes your sash windows different?
Our patented Timberweld technology creates authentic wood-effect joints, while FINEO glazing delivers superior thermal performance in traditional profiles.
Do you offer a guarantee?
We provide a 12-year guarantee covering both product and installation, with BBA-certified durability exceeding 30-year lifecycle standards.
How are installations handled?
Our NVQ-trained Master Installers handle every project, ensuring professional fitting with minimal disruption and full adherence to British standards.
Can windows be colour-matched?
Our in-house paint facility offers full RAL/Special Effects colour matching to complement any property's existing decor and architectural style.
What about energy efficiency?
Our windows achieve 1.2U-values with FINEO glazing, combining traditional aesthetics with modern thermal performance for reduced energy costs.
