Business Details
FENSA Certified Period Sash & Casement Windows in Muswell Hill
Period Sash Windows is a Muswell Hill-based company specialising in the manufacture and installation of traditional hardwood sash and casement windows. With a commitment to preserving period architectural integrity, we combine time-honoured craftsmanship with modern energy-efficient technologies including double glazing and draught-proofing systems. Our FENSA-registered team provides comprehensive window restoration, repair, and decoration services across North London and surrounding areas.All windows are handmade using certified Sapele hardwood, featuring low-E glass with krypton gas insulation for optimal thermal performance. We maintain full project control through in-house operations, ensuring quality consistency and rapid response times. Our 10-year insurance-backed guarantee reflects confidence in our workmanship, while our local focus enables personalized service delivery. We offer bespoke solutions for period property owners seeking to maintain historical authenticity while improving energy efficiency.
Services
Box Sash Windows
Casement Windows
Draught Proofing
Restoration Repairs
Double Glazing
Window Decoration
Ironmongery Installation
Glass Replacement
Timber Window Repairs
Period Window Restoration
Highlights and features
- 10-year insurance-backed guarantee on all installations
- In-house manufacturing and installation ensures quality control
- FENSA-registered with certified hardwood and energy-efficient glazing
- Specialists in period-appropriate window restoration and repairs
- Local North London service with rapid response times
Associations and certifications
- FENSA
Services
Box Sash Windows
Handmade hardwood box sash windows with integrated glazing bars and double-glazed units. Constructed from certified Sapele hardwood with low-E glass and krypton gas insulation. Includes draught-proofing features and durable Dulux paint finish. Ideal for period properties requiring authentic window replacements.
Casement Windows
Custom hardwood casement windows with draught-proofing gaskets and safety glass. Features include low-E coated panes, krypton gas insulation, and traditional ironmongery options. Designed to match period architectural styles while improving thermal efficiency in older properties.
Draught Proofing
Comprehensive draught-proofing solutions for sash and casement windows. Includes weatherpile installation, gasket brushes, and rebalancing mechanisms. Maintains period aesthetics while significantly improving energy efficiency and reducing heat loss in historic buildings.
Restoration Repairs
Full window restoration service for period properties. Covers sash rebalancing, timber repairs, ironmongery replacement, and decorative finishing. Uses traditional techniques to preserve historical integrity while addressing modern performance requirements in sash and casement window systems.
Double Glazing
Energy-efficient double glazing solutions integrated into period window designs. Utilises low-E glass with krypton gas fillings and toughened safety units. Maintains traditional appearance while achieving modern thermal performance standards for sash and casement window installations.
Questions
What types of windows do you specialise in?
We specialise in traditional hardwood sash windows and casement windows for period properties in North London.
Are your windows FENSA certified?
Yes, all our window installations come with FENSA certification and 10-year insurance-backed guarantees.
Do you offer window restoration services?
We provide comprehensive restoration for period windows including draught-proofing, repairs, and decorative finishes.
What materials do you use?
We use certified Sapele hardwood with low-E glass and krypton gas insulation for optimal performance.
How long does installation take?
Typical installation takes approximately four weeks from deposit receipt to completion.
Do you work outside North London?
While based in Muswell Hill, we primarily serve North London and surrounding areas.
