Klosen UK

Business Details

Expert Aluminium Windows & Doors in Lincolnshire

Klosen UK has been a trusted name in the industry for over 25 years, specialising in luxury aluminium doors and windows for both commercial and residential properties. Our installations are completed to the highest standards, combining flair, style, and innovation to create secure, energy-efficient living spaces. We work closely with architects, builders, designers, and homeowners to deliver bespoke solutions that enhance natural light and thermal performance. With a 10-year guarantee on all aluminium profiles and a 25-year guarantee against corrosion on powder coating, we prioritise long-term customer relationships.

Our service area spans a 60-mile radius from Market Deeping, Lincolnshire, covering Peterborough, Stamford, and London. Featured on Grand Designs 2021, we partner with premium brands like Cortizo and Senior Architectural Systems to ensure exceptional quality. Our team provides tailored design consultations, precise measurements, and hassle-free installations, ensuring client satisfaction at every project stage.

Services

Aluminium Doors Aluminium Windows Slimline Bifold Doors Rooflights Commercial Curtain Walling

Highlights and features

We offer 25+ years of specialist experience in aluminium installations.
Our partnerships with premium brands ensure top-tier product quality.
10-year guarantee on all aluminium profiles and 25-year corrosion protection.
Tailored design consultations for residential and commercial properties.
Hassle-free service from planning to installation across East England.

What people say

Great price quick delivery Excellent installation team Superb product quality Helped choose perfect colour Prompt information provision

Website

Update Listing

Services

Aluminium Doors

Klosen UK's aluminium doors combine strength and elegance, offering slim profiles for maximum natural light. Available in bi-fold, sliding, and front door designs, they provide thermal efficiency and security. Customisable with various finishes and locking systems, these doors suit modern and traditional properties across East England.

Aluminium Windows

Our aluminium windows feature slim frames and advanced thermal breaks for energy efficiency. Options include casement, flush, and triple-glazed units, available in 150+ RAL colours. Designed for durability and style, they enhance property value while reducing energy bills for residential and commercial clients.

Slimline Bifold Doors

Klosen UK's slimline bifold doors create seamless indoor-outdoor transitions with minimal sightlines. The thermally broken aluminium frames ensure weather resistance and security. Ideal for extensions and new builds, these doors offer smooth operation and custom configurations to match architectural visions.

Rooflights

We supply made-to-measure flat and pyramid rooflights with aluminium frames for enhanced daylighting. Options include triple glazing and electric openers, combining thermal performance with contemporary aesthetics. Perfect for transforming dark spaces in residential and commercial properties across Lincolnshire.

Commercial Curtain Walling

Klosen UK's aluminium curtain walling systems provide sleek, durable exteriors for commercial buildings. The slimline profiles maximise natural light while meeting thermal efficiency standards. Suitable for high-rise and single-storey developments, these systems combine structural integrity with modern design aesthetics.

Questions

How much do aluminium windows and doors cost?

Prices depend on size, design, and specifications. Contact us for a free, no-obligation quote tailored to your project requirements.

What areas do you serve?

We cover a 60-mile radius from Market Deeping, including Peterborough, Cambridge, London, and Lincolnshire.

Do your products come with guarantees?

Yes. We offer a 10-year guarantee on aluminium profiles and 25 years for powder coating corrosion protection.

Can aluminium windows improve energy efficiency?

Yes. Our thermally broken aluminium frames and double/triple glazing reduce heat loss and lower energy bills.

Are your installations suitable for period properties?

Yes. We provide designs that complement traditional architecture while offering modern performance benefits.

How long does installation take?

Lead times are typically 5-6 weeks for supply and installation, with regular project updates provided.

Reviews (5)

Write a Review

Ryan Guille

Dec 06, 2021 Report

From start to finish weve loved working with Klosen on our self-build. We can be very indecisive, and it took some time to choose what we wanted. Multiple visits to the showroom later we finally decided on what we were going to have! Nancy then arranged to have several colour samples sent to us to place in different areas of the house to help try and picture what it would look like. We were very impressed with the service received and no pressure was put on us to make a decision quickly. After some waiting (extended lead-times for most materials at the moment) our windows and doors arrived

Charles Howells

Jul 02, 2021 Report

Good range of products and a friendly team. Were able to provide all the details I needed along the process and I'm over the moon with the finished result.

Anna Woodbine

Jun 28, 2021 Report

Excellent service!! We decided to use Klosen after a couple of visits to their showroom and a site meeting. Considering the current situation in the past few months we have been very happy with their lead time and updates after we decided to place the order. The quality is exactly as we expected and the addition of dual colour has made such a difference to the house. Very happy and would use them again.

Alan Masters

Apr 19, 2021 Report

Klosen supplied some cortizo sliding doors and flush casement windows after being recommended by my architect. Couldn't be happier with the finished result and I'm very happy with the products. Seeing products in their showroom and having samples brought to site to select the right colour really helped us.

Adam Dickinson

Mar 23, 2021 Report

Came to quote. Radio silence for 2 to 3 weeks despite chasers. Never received a quote. Not helpful. Wouldn't recommend.
Update provided by Klosen to say that they could take a look at it. I was told the owner of the company decided not to quote so it seems rather pointless now. We've progressed with somebody else given the time passed.