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Trusted Windows & Doors Supplier in Morden
Since the 1970s, SCI Windows has been a trusted name in Surrey and South West London for high-quality, made-to-measure windows and doors. Our ethos centres on combining expert craftsmanship with great value and reliable service, ensuring homeowners feel confident in their choices. With decades of experience, we understand the unique character of local properties, including planning regulations and Conservation Area guidelines. Our Morden showroom offers a space to explore products and receive tailored advice, supported by a dedicated team that has remained consistent since 1987. We pride ourselves on honest guidance, UK-manufactured products, and a no-pressure approach, backed by a 10-year insurance-guaranteed warranty.

Over 10,000 satisfied customers attest to our commitment to quality, innovation, and long-term customer care, with many returning for repeat services. Our focus on energy efficiency, including A-rated double glazing and triple glazing options, reflects our dedication to sustainability and modern performance standards. As a family-run business, we prioritise word-of-mouth recommendations, ensuring every installation meets exacting standards while maintaining the architectural empathy of each home. Our teams loyalty and expertise, some spanning generations, underpin our reputation for exceptional service and product excellence.
Services
PVCu Windows Bi-Fold Doors Composite Doors Conservatories Sash Windows Secondary Glazing Roof Lanterns Georgian Windows Porches Diamond Lead Windows
Highlights and features
  • We have over 40 years of experience in supplying and installing windows and doors in Surrey and South West London.
  • Our products are UK-manufactured to meet demanding climate and energy efficiency standards.
  • We offer a 10-year insurance-backed guarantee on all fitted windows and doors.
  • Our team provides tailored advice and solutions aligned with local planning and conservation guidelines.
  • We prioritise energy-efficient designs, including A-rated double glazing and triple glazing options.
What people say
Excellent service Competitive price Top-quality products Efficient service No-pressure approach
Services
PVCu Windows
Our PVCu windows are designed for durability, energy efficiency, and aesthetic appeal, tailored to meet UK climate demands. These windows reduce heat loss and noise pollution while maintaining low maintenance requirements. Ideal for both modern and traditional properties, they comply with current building regulations and offer enhanced security features.
Bi-Fold Doors
Bi-fold doors create seamless transitions between indoor and outdoor spaces, featuring sleek aluminium frames and large glass panels. They maximise natural light and provide excellent thermal performance. Customisable to fit various aperture sizes, these doors are ideal for modernising homes while ensuring smooth operation and durability.
Composite Doors
Composite doors combine strength, insulation, and security with a range of styles to suit any property. Constructed from multiple materials, they resist warping and fading, offering long-term performance. Available in various colours and finishes, they enhance kerb appeal while meeting modern energy efficiency standards.
Sash Windows
Traditional box sash windows replicate period features while incorporating modern double glazing for improved energy efficiency. Crafted to match historic designs, they are ideal for conservation areas and listed buildings. These windows provide smooth vertical sliding and durable hardware for lasting functionality.
Roof Lanterns
Roof lanterns add natural light and architectural interest to loft extensions and conservatories. Constructed with thermally efficient glazing, they reduce heat loss while maintaining structural integrity. Available in bespoke sizes, these lanterns enhance modern living spaces with a sleek, contemporary finish.
Questions
What guarantees do you offer on your windows and doors?
All installations come with a 10-year insurance-backed guarantee, ensuring long-term reliability and peace of mind for our customers.
Do you provide energy-efficient options?
Yes, we offer A-rated double glazing and triple glazing solutions to reduce energy bills and carbon footprints while maintaining thermal comfort.
Which areas do you serve?
We primarily serve Surrey and South West London, including Morden, Kingston, and surrounding areas, with nationwide delivery available.
Can you assist with planning and conservation requirements?
Our team understands local planning rules and Conservation Area guidelines, offering tailored advice to ensure compliance without compromising design integrity.
Are your products UK-manufactured?
All our windows and doors are designed, developed, and manufactured in the UK to meet rigorous quality and performance standards.
How do I book a consultation?
Contact us via phone or email to schedule a free, no-obligation consultation at our Morden showroom or your property.