Our accredited network of installers offers the highest quality uPVC and aluminium products with excellent customer service.
Access our latest technical information, product content, video archives, media centre, Sternfenster Plus and much more.
Find out about Sternfenster Window Systems.
Become a Sternfenster Approved Installer
Find your nearest Sternfenster approved installer.
Download our latest product brochures & documents.
View our library of detailed resources, including price guides & useful information.
FREE Online Cost Calculator What is the Price of Aluminium Bi-Fold Doors? Bi-fold doors ...
FREE Online Cost Calculator How much do aluminium doors cost? Our Aluminium Doors range between ...
FREE Online Cost Calcultor Are you wondering the price of aluminium windows? Our windows range ...
How much do uPVC windows cost? The answer to this question relies on several factors. As a ...
Throughout the UK, many homeowner and property developers suffer from the challenge of finding ...
Industry leading uPVC manufacturers of Deceuninck windows providing energy efficiency, security ...
Stylish, secure and slim frame architectural aluminium windows from Smart.
Residence 9 Flush Sash windows are designed to replicate the 19th Century flush sash timber window.
Unique StyleLine windows.
High-quality Planitherm glass sealed units.
See how our windows & doors meet industry standards for energy efficiency.
Decorative and stylish glass features to finish your windows.
Upgrade to annealed or toughened glass for added security & energy efficiency.
Stylish, secure and energy efficient uPVC windows from Deceuninck.
Modern, innovative and secure uPVC tilt and turn windows from Deceuninck.
Beautiful and authentic uPVC flush casement windows from Deceuninck.
Smarts’ range of slim-framed aluminium windows offer quality, style and strength.
Our aluminium tilt and turn windows offer exceptional strength, durability and are resistant to ...
Strong and durable architectural aluminium curtain walling from Smart.
Strong, stylish and highly secure Deceuninck uPVC Doors.
Beautiful, strong and sleek Smart aluminium doors.
Beautiful composite doors from Deceuninck.
Exquisite timber effect Residence Collection Doors.
Beautiful and authentic flush doors from Deceuninck.
Unique StyleLine doors.
Strong, secure and great looking Deceuninck Residential Doors.
Connect your home and garden with attractive Deceuninck uPVC French Doors.
Enhance your home with stunning Deceuninck uPVC Patio Doors.
Strong, safe and secure specialist fire and stable doors from Deceuninck.
Sleek, strong and contemporary Smart aluminium residential doors.
Stunning, slim-frame and contemporary aluminium bi-fold doors from Smart.
Beautiful, slimline and easy to operate aluminium patio doors from Smart.
Sophisticated and elegant Aluminium French Doors from Smart.
Commercial aluminium doors suitable for a wide range of projects.
Outstanding Quality, Secured by Design
Commercial Aluminium Shop Fronts.
A market-leading design for a warmer and more comfortable home.
View our gallery of stunning uPVC door images.
View our gallery of attractive aluminium products.
View our gallery of stunning storm & flush sash, StyleLine images Windows & Doors
Casement, Flush Sash, Tilt & Turn and Vertical Sliding Window Images
View our gallery of superb StyleLine window and door images.
View our gallery of stunning Residence Collection images.
Switch Your Sector To:
Contact us directly or use our contact form below and we'll be in touch as soon as possible.
Enter your postcode to get directions to our office.
To: Sternfenster, Lincoln, United Kingdom
Our network of approved installers guarantees you the best service and highest quality products.