Business Details
30 Years
experience
Trusted Windows and Doors Installer in Croydon
Established in 1996, Window Clinic is a family-run business with over 20 years' experience in the double glazing industry. Our director, Graham, brings 35 years of specialist expertise, ensuring every project benefits from deep industry knowledge and hands-on oversight. We specialise in high-quality uPVC, aluminium, timber, and composite windows and doors, tailored to suit both traditional and modern properties across South East London, Kent, and Surrey. As FENSA registered installers and Which? Trusted Traders, we provide insurance-backed guarantees and a commitment to exceptional customer service. Our team prioritises transparency, offering fair pricing without pushy sales tactics, with final payments only due when customers are fully satisfied.Every installation is completed by our skilled, directly employed staff, who maintain the highest standards of workmanship and cleanliness. With thousands of homes improved over two decades, we combine traditional craftsmanship with modern energy-efficient solutions to deliver secure, aesthetically pleasing results. Our extensive product range includes casement, sash, and timber-effect windows, composite and bi-fold doors, and conservatories, all customisable to meet individual needs. Customer satisfaction is our priority, reflected in our 100% recommendation rate and long-standing reputation as a trusted local installer.
Services
Casement windows
Sash windows
Composite doors
Bi-fold doors
Secondary glazing
Timber effect windows
Entrance doors
Patio doors
Conservatories
Roofline products
Details
- Year established: 1996
Highlights and features
- We offer 35 years of specialist expertise in double glazing installations.
- Our FENSA-registered work includes insurance-backed guarantees for added security.
- Family-run service with no pushy sales tactics or hidden fees.
- We provide bespoke solutions for traditional and modern properties across South East London.
- 100% satisfaction guarantee with final payments only due upon completion.
Associations and certifications
- FENSA
- Which? Trusted Trader
What people say
Expert advice
35 years experience
Best price guarantee
No pushy sales
Insurance-backed guarantees
Services
Casement windows
Secure and energy-efficient casement windows in uPVC, aluminium, or timber. Customisable with various colours, decorative glazing, and opening options to suit all property types. Ideal for modernising homes while maintaining thermal efficiency and security.
Sash windows
Traditional sliding sash windows in painted timber or uPVC, perfect for Victorian or Georgian homes. Internally finished with architraves and window boards, featuring authentic finger pulls and fitch lock catches for period-accurate aesthetics.
Composite doors
Durable composite doors with solid wood cores, fibreglass coatings, and Secured by Design accreditation. Available in multiple colours and designs, offering superior security, thermal efficiency, and long-lasting performance for front and back entrances.
Bi-fold doors
Space-enhancing bi-fold doors in uPVC or aluminium, ideal for connecting indoor and outdoor spaces. Perfect for kitchens, living rooms, and conservatories, with secure locking systems and seamless weatherproofing for year-round use.
Secondary glazing
Cost-effective secondary glazing solutions to improve thermal efficiency and reduce noise. Manufactured with noise-cancelling glass and versatile frames, ideal for single-glazed windows in urban environments or period properties.
People
Graham
Director
Graham, our director, brings over 35 years of double glazing expertise, overseeing each project personally to ensure quality and customer satisfaction. A trusted leader in the industry.
Questions
What areas do you serve?
We operate across South East London, Kent, and Surrey, including Croydon, Selhurst, Thornton Heath, and South Norwood.
Are your installations FENSA registered?
Yes, all our work is FENSA-registered with insurance-backed guarantees for your peace of mind.
Do you offer a no-obligation quote?
Yes, we provide free, no-obligation quotes within 24 hours of your enquiry.
What window materials do you supply?
We offer uPVC, aluminium, timber, and composite options to suit all property types.
Can I customise my doors and windows?
Yes, choose from multiple colours, finishes, hardware options, and glass designs to match your home.
How long does installation take?
Most installations complete within 4-6 weeks from order confirmation, depending on project size.
