Business Details
36 Years
experience
Expert Window Supply & Installation Services in London
Established in 1990, SashCo is a family-run business specialising in the supply and installation of high-quality windows across London, Surrey, and Kent. With over three decades of experience, we pride ourselves on our expertise in sash windows, offering both traditional timber and modern UPVC options tailored to preserve architectural integrity. Our services extend to repairs, refurbishments, and bespoke solutions, ensuring every client receives a comprehensive survey and free consultation within a 5-mile radius.We maintain strong partnerships with manufacturers to deliver energy-efficient windows compliant with current regulations, including FENSA-certified installations. Our commitment to transparency, competitive pricing, and customer satisfaction has earned us a trusted reputation in both domestic and commercial sectors.
Services
Sash window repairs
UPVC window installations
Triple-glazed windows
Bespoke window design
Window refurbishments
Trade window supply
Conservation area windows
Self-installation window sales
Energy-efficient glazing
Georgian bar fittings
Details
- Year established: 1990
Highlights and features
- We are a family-run business with over 30 years of experience in window supply and installation.
- Our bespoke sash windows match historic architectural styles while meeting modern energy standards.
- We offer free on-site consultations within a 5-mile radius of our Keston location.
- All installations comply with FENSA regulations and include energy-efficient double or triple glazing.
- We provide competitive pricing with large-order discounts for trade and domestic clients.
Associations and certifications
- FENSA
What people say
Extremely professional
Happy with new windows
Competitive pricing
Timely installations
Expert advice
Services
SashCo window repairs
We specialise in repairing and refurbishing sash windows to extend their lifespan while preserving their original character. Our process includes draught-proofing, repainting, and hardware replacement. This service is ideal for heritage properties in conservation areas seeking to maintain architectural authenticity.
UPVC window installations
Our UPVC sash windows combine traditional aesthetics with modern energy efficiency. Features include tilt-open sashes, decorative horns, and triple-glazing options. Perfect for homeowners seeking low-maintenance solutions without compromising on style.
Triple-glazed windows
Triple-glazed windows offer superior thermal insulation and noise reduction. With U-values as low as 0.8, they significantly reduce energy bills while enhancing security. Ideal for properties in noisy urban areas or cold climates.
Bespoke window design
We craft made-to-measure windows tailored to unique architectural requirements. Options include custom mouldings, Georgian bars, and period-specific detailing. Ensures perfect compatibility with historic or non-standard properties.
Window refurbishments
Our refurbishment service revitalises existing windows through draught-proofing, sealing, and hardware upgrades. Cost-effective alternative to replacements, extending window lifespan by decades with minimal disruption.
Questions
What types of windows do you specialise in?
We specialise in sash windows (timber and UPVC), triple-glazed windows, and bespoke designs for conservation areas.
Do you offer services outside London?
Yes, we serve Surrey, Kent, and provide nationwide delivery for trade window orders.
How long have you been in business?
SashCoCo has been supplying and installing windows since 1990, with over 30 years of industry experience.
Can I install windows myself?
Yes, we supply windows for self-installation with FENSA-compliant certification available through approved fitters.
Do you offer free consultations?
We provide free on-site consultations within a 5-mile radius of our Keston location.
Are your windows energy efficient?
All our windows meet BFRC energy efficiency standards, with options for double or triple glazing.
