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Slimline Triple Glazed Windows

SLIMLINE TRIPLED GLAZED WINDOWS

Klosen / Aluminium Windows / Aluminium Double Glazed Windows

SLIMLINE DOUBLE GLAZED WINDOWS

If you want elegant, flush windows with exceptional thermal insulation, there’s no better option than slimline triple glazed windows.

To explore your design options, download a brochure or request your free quotation.

Our Customer Reviews

Great Price & Quick Delivery

★★★★★
This company have been amazing and came to our rescue when another company let us down repeatedly over a period of 4 months during our building work. We got a great price, a quick delivery time and the same product but this time with lovely fitters who knew exactly what they were doing. Now we will will have a warm house for christmas HOORAY !! We went for 3 large sliding doors and the quality of the product is excellent . Many thanks to Audrey Cieran and the team I would recommend highly
- Esther Young

Delighted

★★★★★
Delighted with the product and the service provided by Klosen. The installation team were excellent and very helpful.
- Sara Hyem

Very Happy

★★★★★
We’ve been very happy with the work Klosen recently completed for us. They installed a variety of windows and sliding doors for us on our new build project. All of the information we requested early on was provided promptly and they were great with our architect. Very happy with the end result and the colour they helped us chose.
- Sarah Munton

Benefits of Slimline Triple Glazed Windows

Slimline triple glazed windows offer plenty of benefits, including enhanced thermal performance, which in turn can reduce your heating bills.

Mitigate Cost of Living Increases

Energy bills are higher than ever. Triple glazing is much more efficient than double glazing, allowing it to keep more heat in and, in turn, save you money on your heating bill.

Improved Thermal Performance

If you want a compelling stat, triple glazing offers up to 50% better thermal insulation than double glazing. With not one but two layers of inert gas, triple glazing makes it much more difficult for cold or warm air to pass through from the outside and into your home. This means you’re less likely to experience condensation, draughts or overeating in summer.

Better Sound Insulation

The extra layers of glass and air also contributes to slightly better sound insulation. This helps you keep the noise of the outside world where they belong – outside!

Enhance Security with Stronger Windows

With three glass panels, your windows offer even more resistance against potential break ins or accidents playing cricket or football in the garden.

Better UV Protection

They also offer better UV protection – the main culprit for fading furniture!

All these benefits combined make your property more comfortable, resilient and even more attractive to potential buyers. So, if you’re thinking of putting a property on the market, slimline triple glazed windows could help you sell at a favourable asking price.

Who We Work With

10 Year Guarantee

We offer a 10 year guarantee on all aluminium profiles and 25 years for the powder coating element

Thermal Efficiency

Stay warm in the winter and cool in the summer whilst cutting down on energy bills

Complete Flexibility

Our team are flexible throughout the entire process, including the design and installation of windows

25+ Years Experience

Klosen have over 25 years experience working with designers, architects and homeowners

Brands We Work With

Cortizo logo

Cortizo Windows

A respected Spanish window manufacturer, Cortizo has designed slimline triple glazed windows since 1972.

With a choice of glazing finishes and stainless steel frames to reinforce the glass, the aesthetics of Cortizo are second to none.

Designed with a maximum window surface area to create light and space, these bespoke slimline aluminium windows are also designed with enhanced noise insulation as well as offering improved levels of energy efficiency and thermal insulation.

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Origin Windows

Origin supplies high-quality windows, backed by up to a 20-year parts warranty.

These premium aluminium frames are expertly engineered and undergo rigorous quality checks at Origin’s facility in Buckinghamshire before dispatch.

The frames are designed with a polyamide thermal break, significantly enhancing thermal performance to provide superior, future-proofed insulation for your home.

With a selection of 150 frame colours available, you can truly customise your aluminium windows with the perfect finishing touches to complement your property.

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Where We Work

Based in Market Deeping, Lincolnshire, we cover towns and cities within a 60-mile radius.

Popular locations include Peterborough, Rutland, Bourne, Stamford, Huntingdon, Lincoln, Melton Mowbray and London, but we cover the entirety of Cambridgeshire and Lincolnshire.

Why Choose Us

We’ve installed stunning bespoke windows for homes and businesses for over 25 years. Our ethos is to take the hassle out of getting made-to-measure windows while ensuring the design fits the brief and fulfils future requirements for buildings.

Below are just some of the reasons customers appreciate working with us:

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FAQs

How much do triple glazed windows cost?

How much slimline triple glazed windows cost will depend on a range of factors, including which manufacturer you opt for, additional features and whether your installation has more specialist requirements. It is true that these windows have a higher price tag than double glazing, but this encompasses the improvements in thermal performance (which helps you save on energy bills).

What is the U-value of triple glazed windows?

U-values for triple glazed windows are lower than double glazed windows thanks to their enhanced thermal performance. Triple glazed windows made with a thermal break frame offer U-values  as low as 0.71 W/m2K. This varies slightly between manufacturers, but all can achieve values below 1 for triple glazed windows.

Do triple glazed windows reduce noise?

Sound insulation is not a primary benefit of triple glazed windows, but due to the three panes of glass and two cavities of inert gas, this offers reduced noise.

How secure are your windows?

SoundWe get that security is important for windows, especially if you’re installing for a family home or a property that contains high-value items. All our windows comply with PAS24 standards and with the three panes of glass, offer higher resilience against breakages than double glazed windows.

Get in touch with us today to receive your free quotation!