Business Details
32 Years
experience
Emergency
services
Expert Sash Window Repair & Replacement in London
Established in 1994, Mortice Green Sash Window Repair is a family-run sash window specialist serving London and surrounding areas. Our small team of highly skilled restorative joiners delivers bespoke repairs, refurbishments, and replacements for traditional wooden windows, prioritising quality craftsmanship and customer satisfaction. With a workshop in West London, we produce hardwood sash windows and doors that maintain period authenticity while incorporating modern double glazing. We guarantee all work for a minimum of three years, with replacement windows covered for 25 years.Our ethos focuses on honest advice, no subcontracting, and maintaining the same standards set by our founders. We serve conservation areas and listed buildings, offering draught proofing and renovation services that enhance energy efficiency without compromising historical integrity. Our reputation as London's original sash window company is built on over 30 years of dedicated service and thousands of satisfied clients.
Services
Sash window repair
Window refurbishment
Hardwood replacement
Draught proofing
Double glazing integration
Conservation area services
Period window restoration
Details
- Year established: 1994
Highlights and features
- Family-run business with 30 years' experience in traditional sash window craftsmanship
- No subcontracting - all work completed by our own expert team
- Bespoke hardwood window production with period-accurate detailing
- Guaranteed workmanship for 3-25 years depending on service type
- Specialists in conservation area and listed building window compliance
What people say
Excellent customer care
High quality work
Professional team
Period-accurate results
Reliable service
Services
Sash window repair
Our sash window repair service addresses broken cords, damaged frames, and operational issues while preserving original timber. We replace pulley wheels, locks, and beads to restore functionality. Each repair maintains period authenticity while improving durability and energy efficiency.
Window refurbishment
Comprehensive window refurbishment includes draught proofing, repainting, and component replacement. We integrate modern brush pile systems while maintaining traditional aesthetics. This service extends window lifespan and improves thermal performance without full replacement.
Hardwood replacement
Bespoke hardwood window replacement matches original designs for conservation areas. Our double-glazed sash windows maintain period appearance while meeting modern efficiency standards. Each replacement uses sustainably sourced oak for durability.
Draught proofing
Our discreet draught proofing solutions reduce heat loss by up to 70%. We install brush piles within parting beads to eliminate rattles and cold air infiltration while maintaining traditional window operation and appearance.
Double glazing integration
We retrofit double glazing into existing sash windows while preserving historical character. This service combines modern thermal efficiency with traditional aesthetics, available at reduced VAT rates for eligible properties.
People
Morris Greenberg
Co-Proprietor
With over 30 years in traditional window craftsmanship, Morris Greenberg co-founded Mortice Green Sash Window Repair in 1994. He oversees all projects, ensuring adherence to original quality standards while embracing modern techniques.
Questions
Do you offer emergency window repair services?
Yes, we provide 24/7 emergency services for urgent window repairs across London.
Can you work on listed buildings?
Yes, we specialise in period-appropriate window solutions for listed buildings and conservation areas.
Do your windows meet modern energy standards?
Our double-glazed sash windows exceed modern efficiency requirements while maintaining traditional appearance.
What guarantees do you offer?
We guarantee all repairs for 3 years and replacement windows for 25 years.
Are your services VAT exempt?
Some restoration work qualifies for reduced 5% VAT rate on heritage building repairs.
How long does window refurbishment take?
Most projects complete within 2-5 working days depending on window quantity and complexity.
