Business Details
Expert Period Sash Windows & Doors in Muswell Hill
Period Sash Windows has built its reputation on tradition and honest workmanship, serving North London and surrounding areas with expertly crafted hardwood box sash and casement windows. Specialising in draught proofing, heritage double glazing, and restoration repairs, we ensure every installation meets the highest standards of quality and authenticity. Our FENSA-registered team provides locally-based service, enabling prompt response times and a personal approach to customer care.All windows are handmade using certified hardwood (Sapele) with a 10-year insurance-backed guarantee, incorporating integrated glazing bars, Krypton gas-filled double glazing, and durable Dulux finishes. We prioritise minimal disruption during installation, maintaining strict attention to detail from design through to completion, which typically takes four weeks from deposit receipt. As a trusted local supplier, we balance traditional craftsmanship with modern thermal efficiency to enhance period properties.
Services
Box Sash Windows
Casement Windows
Draught Proofing
Restoration Repairs
Heritage Double Glazing
Highlights and features
- FENSA registered installers with insurance-backed guarantees
- Locally-based service in Muswell Hill and North London
- Bespoke designs matching original period aesthetics
- Krypton gas-filled double glazing for superior thermal efficiency
- 10-year guarantees on all installations
Associations and certifications
- FENSA
Services
Box Sash Windows
Custom hardwood box sash windows crafted from certified Sapele timber. Includes integrated glazing bars, Krypton gas-filled double glazing, and durable Dulux coatings. FENSA-registered installation ensures period-accurate design with modern thermal efficiency improvements.
Casement Windows
Traditional hardwood casement windows with draught-proof gaskets and low-E glass technology. Available as replacements or new installations, featuring bespoke ironmongery options and matching period architectural styles across Edwardian and Victorian properties.
Draught Proofing
Comprehensive draught proofing using weatherpile systems and brush gaskets. Applied to both sash and casement windows, ensuring energy efficiency without compromising original window functionality or aesthetic integrity in heritage properties.
Restoration Repairs
Specialist restoration of period windows including sash rebalancing, timber repairs, and ironmongery replacement. Carried out by FENSA-certified installers using traditional techniques to preserve historical accuracy while improving operational functionality.
Heritage Double Glazing
Double-glazed units incorporating Planitherm low-E coatings and Krypton gas insulation. Designed to retain original window appearance while achieving modern thermal performance standards, with safety glass and 10-year installation guarantees.
Questions
What types of windows do you specialise in?
We specialise in traditional hardwood sash windows and casement windows for period properties, including Georgian, Victorian, and Edwardian styles with draught-proofing and double-glazing upgrades.
Are your installations FENSA certified?
Yes, all our window installations are carried out by FENSA-registered professionals with insurance-backed guarantees, meeting Building Regulations compliance for safety and energy efficiency.
Do you offer restoration services?
We provide comprehensive restoration for period windows, including sash repairs, draught proofing, and ironmongery replacement while maintaining original design characteristics and structural integrity.
What guarantee applies to installations?
Our installations include a 10-year insurance-backed guarantee covering workmanship, materials, and performance of windows including double-glazing units and draught-proofing components.
How long does installation take?
From deposit receipt to installation completion typically takes approximately four weeks, with bespoke window manufacturing and fitting scheduled to minimise disruption to property occupants.
What materials do you use?
We use sustainably-sourced Sapele hardwood certified for durability, with double-glazed units incorporating low-E coated glass, Krypton gas insulation, and weather-resistant Dulux paint finishes.
