Est. 1974
One of the UK's Largest Fabricators
Established in 1974, Sternfenster became one of the UK’s largest trade fabricators of uPVC and aluminium windows and doors. Currently run by Mike and Simon Parczuk, the original founders’ sons, we have over 250 employees and hundreds of years combined experience.
We continue to deliver high-quality products nationally but with the values of a family-run business.
Over 50 Years Of Manufacturing
Fully Committed
We are proud to have over 50 years experience of manufacturing at Sternfenster. We are fully committed to UK homeowners, offering sustainable products and services wherever possible. We offer nationwide delivery across our comprehensive portfolio and have an approved installer network.
Multi Award Winning Fabricator
Dedicated To Exceeding Your Expectations
For years, Sternfenster has set the standard as a multi-award-winning fabricator, earning recognition from leading industry authorities for our dedication to quality and innovation. Our impressive collection of accolades speaks volumes about our unwavering dedication to quality, continuous development and customer satisfaction.
With Sternfenster, you’re not just getting windows and doors – you’re investing in the expertise and craftsmanship of an award-winning team dedicated to exceeding your expectations. Choose Sternfenster as your trusted partner, and experience the difference that comes with partnering with an award-winning fabricator.
Est. 1974
One of the UK's Largest Trade Fabricators
Established in 1974, Sternfenster became one of the UK’s largest trade fabricators of uPVC and aluminium windows and doors. Currently run by Mike and Simon Parczuk, the original founders’ sons, we have over 250 employees and hundreds of years combined experience.
We continue to deliver high-quality products nationally but with the values of a family-run business.
Over 50 Years Of Experience
Fabricating For The Trade
With over 50 years of experience, we have been at the forefront of manufacturing excellence. Throughout the decades, we have continually refined our processes, embraced technological advancements, and adapted to evolving industry trends, cementing our reputation as a trusted leader in the manufacturing sector.
With each passing year, we have amassed invaluable knowledge and expertise, enabling us to deliver products and solutions of the highest calibre. Partner with us and leverage our 50 years of experience to propel your business forward with confidence and success.
Multi Award Winning Fabricator
Dedicated To Exceeding Your Expectations
For years, Sternfenster has set the standard as a multi-award-winning fabricator, earning recognition from leading industry authorities for our dedication to quality and innovation. Our impressive collection of accolades speaks volumes about our unwavering dedication to quality, continuous development and customer satisfaction.
With Sternfenster, you’re not just getting windows and doors – you’re investing in the expertise and craftsmanship of an award-winning team dedicated to exceeding your expectations. Choose Sternfenster as your trusted partner, and experience the difference that comes with partnering with an award-winning fabricator.
Over 50 Years at Sternfenster
Join us as we celebrate our 50th year in business with a chance to win prizes!
State-of-the-Art-Factory
Sternfenster operates from an 80,000 square metre state of the art factory, supplying high quality windows and doors to installers, builders and homeowners across the UK.
Every window and door goes through a rigorous manufacturing process, with only the very best leaving our factory in Lincoln.
State-of-the-Art-Factory
Sternfenster operates from an 80,000 square metre state of the art factory, supplying high quality windows and doors to installers, builders and homeowners across the UK.
Every window and door goes through a rigorous manufacturing process, with only the very best leaving our factory in Lincoln.
Excellent Service and Prices
We supply industry leading uPVC and aluminium window and door products. With everything in-house, we offer the best quality products at the best prices. We promise high quality products and services to all our trade and retail customers.
Sternfenster is 100% committed to delivering the best possible service. Over 200 dedicated employees take pride in our company’s name and reputation. Over 80% of our business is a result of repeat customers and recommendations.
Market Leading Profiles
We manufacture a full range of market leading uPVC windows and doors using the Deceuninck 2500 and 2800 series of profile systems. Our aluminium products are manufactured using high performance profiles from Smart Aluminium.
Excellent Service and Prices
We supply industry leading uPVC and aluminium window and door products. With everything in-house, we offer the best quality products at the best prices. We promise high quality products and services to all our trade and retail customers. Sternfenster is 100% committed to delivering the best possible service.
Over 200 dedicated employees take pride in our company’s name and reputation. Over 80% of our business is a result of repeat customers and recommendations.
Market Leading Profiles
We manufacture a full range of market leading uPVC windows and doors using the Deceuninck 2500 and 2800 series of profile systems. Our aluminium products are manufactured using high performance profiles from Smart Aluminium.
Designated Area Managers & Service Engineers
We assign account managers to regions, meaning you get to deal with the same friendly face every time. The same applies for our highly trained service engineers who are on hand to assist with any job.
In House Paint Spraying
An additional paint spraying facility means that any colour requirement can be met in fast lead times.
In-House Glass Toughening Plant
An in-house toughening plant and two fully automated lines produce over 3,500 glass sealed units every week.
Local Trade
Counter
All of our uPVC and aluminium products are available locally through our trade counter, Express Trade Window Depot located alongside our main factory in Lincoln.
Nationwide
Delivery
Sternfenster offers nationwide delivery, with order tracking and an express service if you need it. Products are supplied quickly and efficiently, without any detriment to quality.
In House Paint Spraying
An additional paint spraying facility means that any colour requirement can be met in fast lead times.
In-House Glass Toughening Plant
An in-house toughening plant and two fully automated lines produce over 3,500 glass sealed units every week.
Local Trade
Counter
All of our uPVC and aluminium products are available locally through our trade counter, Express Trade Window Depot, which is located alongside our main factory in Lincoln.
Nationwide
Delivery
Sternfenster offers nationwide delivery, with order tracking and an express service if you need it. Products are supplied quickly and efficiently, without any detriment to quality.
Start Selling Sternfenster Today
Get in touch today with enquires for any of our market leading products. Sell the best with Sternfenster.
Become An Approved Installer
Grow your business with an award winning manufacturer. We’ll support you with materials and expert guidance every step of the way.
Outsource Fabrication To Sternfenster
Looking to outsource for any of your projects? Get started today. We will provide you with expert guidance for your trade success.
