Business Details
36 Years
experience
Expert Window Solutions for London Homes
Established in 1990, SashCo is a family-run business specialising in supplying and fitting high-quality windows across London, Surrey, and Kent. Our expertise spans sash window repairs, refurbishments, and installations of bespoke timber, UPVC, aluminium, and steel windows. We prioritise client education, offering comprehensive consultations to ensure informed decisions about window styles and materials. With over three decades of experience, we maintain close partnerships with manufacturers to deliver durable, energy-efficient solutions tailored to each property's architectural style.Our team conducts thorough surveys before providing quotes and offers free local consultations within a 5-mile radius. We also provide self-installation options with compliance certifications and large order discounts for trade clients nationwide.
Services
Sash window repairs
Double glazing
Triple glazing
Bespoke window supply
Heritage window restoration
Trade window supply
Self-installation support
Details
- Year established: 1990
Highlights and features
- We have over 30 years' experience in window supply and installation
- Our team provides free local consultations within a 5-mile radius
- We offer FENSA-certified compliance for self-installation projects
- Our bespoke windows match period architectural styles precisely
- We supply trade customers nationwide with bulk order discounts
Associations and certifications
- FENSA
What people say
Extremely professional
Joy to work with
Good experience
Highly recommend
Cost as expected
Services
UPVC sash windows
Modern UPVC sash windows combine traditional aesthetics with low maintenance. Our profiles feature tilt-open functionality and optional decorative horns. Bespoke balance mechanisms ensure smooth operation while meeting current energy efficiency standards.
Triple glazing
Triple glazed windows offer superior thermal efficiency with U-values below 0.8. The additional pane enhances sound insulation and security while reducing energy bills over the window's lifespan compared to double glazing.
Heritage window restoration
Specialist restoration service for sash windows in conservation areas. We preserve original architectural details while upgrading functionality through draught-proofing, improved hardware, and energy-efficient glass replacements.
Trade window supply
Direct supply service for trade professionals nationwide. Includes large order discounts, compliance certification options, and nationwide delivery. Available for timber, UPVC, aluminium, and steel window systems.
Bespoke window manufacturing
Made-to-measure windows tailored to specific architectural requirements. Available in hardwood, softwood, or composite materials with custom moulding profiles to match existing period features exactly.
People
Michael
Director
With over 30 years in the window industry, Michael leads SashCo's operations. He specialises in heritage window solutions and personally oversees client consultations, ensuring technical expertise and customer satisfaction alignment.
Questions
Do you offer window repair services?
Yes, we specialise in sash window repairs and refurbishments to preserve original features while improving functionality and energy efficiency.
Can I install windows myself?
Competent fitters can purchase windows for self-installation. We provide FENSA-certified compliance options with necessary documentation for property transactions.
What areas do you cover?
We serve London, Surrey, and Kent for domestic clients. Trade window supply extends nationwide across the UK.
Are triple glazed windows worth it?
Triple glazing offers 30% better thermal efficiency than double glazing, significantly reducing energy bills over time despite higher initial costs.
Do you provide free consultations?
Yes, we offer free local consultations within a 5-mile radius of our Keston location for window replacements and installations.
