50 year lifespan

Made from at least 50% recyclable materials

Maximum insulation

Smits windows have the highest insulation value, so you'll have lower heating costs and always stay warm

Low maintenance & durable

Plastic window frames remain beautiful, do not require painting, and are easy to clean

Burglar-resistant & fire-resistant

Smits windows have better fire resistance and optimal burglary resistance, so you can sleep with peace of mind.

Affordable to purchase

When it comes to price, plastic window frames, compared to all alternative materials, are the best choice

Kömmerling K-VISION series

Smits Kozijnen

In addition to being sustainable, low-maintenance, and well-insulating, the PVC frames from Smits Kozijnen are also a safe choice:

  • Fire-resistant
  • Burglar-resistant
  • Low maintenance
  • 50-year lifespan
  • Made from at least 50% recycled material

Discover the entire range or contact Smits Kozijnen for more information.

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Kömmerling K-VISION series

K-Vision Trend

With its contemporary look, sleek shape, and versatile corner connections, the K-vision Trend offers a perfect combination of style and functionality.

  • Recessed system: 120 mm installation depth
  • 15-degree sloped reveal all around
  • Most reinforced frame system
  • Sleek corners and slim appearance
  • Straight or slanted corner connection
  • Color systems: proCoverTec and Renolit foil
  • Burglar-resistant: class 2
  • Fire resistance: class EW30/EI30/EW60
  • Air tightness: 450 Pa to 600 Pa
  • Glass accommodation: standard 48 mm
  • Insulation value: Ufr of 1.20
K Vision Trend 3
Kömmerling K-VISION series

K-Vision Classic

This series is unique compared to the other K-VISION frames due to the sleek, flat aluminum look.

  • Flat system: 76 mm installation depth
  • Classic sleek design
  • Ideal for utility construction and a timeless style
  • Aesthetics of aluminum frames
  • Angled corner connection
  • Color systems: proCoverTec and Renolit foil
  • Burglar-resistant: class 2
  • Fire resistance: class EW30/EI30/EW60
  • Airtightness: 450 Pa to 600 Pa
  • Glass uptake: standard 48 mm
  • Insulation value: Ufr of 1.10
K Vision Classic
Kömmerling K-VISION series

K-Vision Cube

A frame with a robust appearance and a wood look that is indistinguishable.

  • Deepened system: 120 mm installation depth
  • Unique 90-degree straight reveal
  • Patented straight-to-slope connection
  • 100% aesthetic replacement for wooden frames
  • Straight corner connection
  • Color systems: proCoverTec
  • Burglar-resistant: class 2
  • Fire resistance: class EW30/EI30/EW60
  • Air tightness: 450 Pa to 600 Pa
  • Glass accommodation: standard 48 mm
  • Insulation value: Ufr of 1.20
K Vision Cube 1
Kömmerling K-VISION series

K-Vision City

A frame with a monumental appearance reminiscent of old Dutch sliding windows.

  • Deepened system: 120 mm installation depth
  • Derived from the Cube system
  • Unique look of a classic sliding window
  • Equipped with modern tilt and turn technology
  • Ideal for the renovation of inner-city buildings
  • Straight corner connection
  • Color systems: proCoverTec and Renolit foil
  • Burglar-resistant: class 2
  • Airtightness: 450 Pa to 600 Pa
  • Glass accommodation: standard 48 mm
  • Insulation value: Ufr of 1.20
K Vision City

References Smits Kozijnen

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Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 6
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 8
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 5
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 3
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 14
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 13
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 11
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 9
Bengglas kunststof kozijnen smits kozijnen vacuumglas isolatieglas 10

What is Renolit foil?

With a Renolit film, the profile is provided with a color layer. This top layer is available in many colors and with a grainy, smooth, or matte texture. Renolit film is UV-resistant and colorfast and comes with a 10-year warranty.

  • Color film adhered to the profiles
  • Possible on the exterior and/or interior side
  • Available in more than 350 color and texture combinations
  • Matches facade cladding and finishing with the same film
  • Options for color and texture on a project basis
  • Two film suppliers

What is proCoverTec©

The surface treatment proCoverTec© is offered in a wide color palette. The matte satin finish provides a natural appearance. Water and dirt are immediately repelled thanks to the innovative nanotechnology. Moreover, the color layer of proCoverTec© ensures that less heat is absorbed. This means, especially with dark colors, less expansion of the frame.

  • Coating system with 2K water-based paint
  • Possible on the outside and/or inside and in the rebate
  • Unique matte satin look & feel
  • Available in 25 standard colors
  • Extensive possibilities for additional colors
  • Application on a project basis.

 

What do the fire resistance classes mean?

EW30, EI30, and EW60 are fire resistance classes that indicate how long and in what way a product provides protection during a fire. The letter E stands for flame tightness: it prevents flames from spreading through openings. W means that heat radiation is also limited, so that the temperature on the other side of the construction remains within safe limits. I adds extra thermal insulation – it not only blocks the flames but also the heat transfer. The number, such as 30 or 60, indicates how long these performances are maintained at a minimum during a fire. This way, you know exactly what to expect in terms of fire safety.

Note: the fire resistance is not only determined by the frame but also by the glazing you choose. Therefore, always seek good advice from a specialist.

Smits Kozijnen is happy to assist you further

Do you have questions about the products or services of Smits kozijnen? Would you like more information about their window solutions for your project? Feel free to contact them using the details below.

info@smitskozijnen.nl
+31 (0) 492 362 622
Handelseweg 43
5423 SB Handel

FAQ

Frequently asked questions

Why should I choose BENGglas?

BENGglas is not ordinary glass – it is a revolutionary solution for sustainable and future-proof building. Compared to standard insulation glass, BENGglas offers unique advantages that directly improve both your home and the climate.

  • Superior insulation: with a U-value starting from 0.35 W/m²K, BENGglas is twice as effective as triple glazing (0.70) and even three times better than double glazing (1.10). This means significant energy savings and lower heating costs.
  • Long lifespan: while traditional glass lasts an average of 25 years, BENGglas lasts up to 50 years. Produce once, less CO₂, and half a century of benefits!
  • Sustainable and environmentally friendly: thanks to less material use (30% less glass than triple glazing), BENGglas saves thousands of tons of CO₂ annually. This way, you actively contribute to a cleaner planet.
  • Light and thin: at only 8.3 mm thick, BENGglas fits in almost any existing frame and allows for lighter hardware, making construction sustainable and efficient.
  • A true climate hero: if all of the Netherlands switches to BENGglas, we can save up to 4.1 megatons of CO₂ annually — that's equivalent to 170,000 car trips from Amsterdam to Paris! Moreover, the production of BENGglas alone results in 24,000 tons less CO₂ emissions per year.
  • A smart investment in the future: less energy consumption, less maintenance, and a longer lifespan make BENGglas a choice that benefits you for years – for yourself and for future generations.

In short: with BENGglas you choose maximum energy efficiency, sustainability, and a smart investment in the future. Make a difference, for your home and for our planet.

How do I request a quote?

Under the heading ‘Dealers’, you will find an overview of all BENGglas dealers near you. Once you have contacted a dealer, they will prepare a quote for you. This quote includes both the glass and the necessary installation. If desired, additional work, such as painting, can also be included. This way, our dealers always offer a complete total solution.

All BENGglas dealers have sample panes, so you can view the glass and make an informed choice. Additionally, you are warmly welcome by appointment in our showroom to personally experience the possibilities.

Is there no dealer near you? Then ask your local glazier to contact BENGglas via info@bengproducts.nl.

How much subsidy do I get for BENGglas in the Netherlands?

Good news! Thanks to the Investment Subsidy for Sustainable Energy and Energy Saving (ISDE), you can receive a nice reimbursement if you make your home more sustainable with BENG glass:

  • € 25 per m² if you only replace the glass with BENG glass (report code: KA18780)
  • € 111 per m² if you also renew your window frames (report code: other)
  • € 46 per m² if you live in a national monument and replace the glass with BENG glass

And it gets even better: if you also take other insulation measures, such as roof or floor insulation, the amount will be doubled!

Are you unsure if your home is a national monument? Check it quickly on RVO.nl.

Are you an entrepreneur and want to make your business premises more sustainable?
Then the Energy Investment Allowance (EIA) is something for you! With this, you can receive up to € 300 per m² in tax benefits. Note: the investment must be at least € 2,500. Don't forget to apply for the subsidy within three months after installation via the eLoket of RVO.nl.

How much subsidy do I get for BENGglas in Belgium?

Do you live in Flanders? Then there's good news! When renovating your home or building, you can take advantage of the renovation grant. Are you replacing your old glass with BENG glass? Then you can get back no less than €16 per m²!

Applying for the subsidy? Super easy:

  1. Have BENG glass installed by a recognized dealer or contractor.
  2. Apply for the grant via the online portal at Vlaanderen.be.
  3. After installation, you will receive a certificate from the contractor, which you use for your application.

Saving can be that simple!

Does BENGglas fit in my window frames?

Whether you have wooden or aluminum frames: BENGglas always fits. Thanks to the smart construction and the ultra-thin thickness of only 8.3 mm, our glass is specially designed to fit into existing frames. That means: no unnecessary renovations, no expensive new frames, and no hassle.

And the best part? You retain the authentic appearance of your home. Perfect for monumental buildings, 1930s houses, or any home where character plays a role. This way, you combine top insulation with style and ambiance.

Did you know…
If necessary, we can even thicken (hybrid vacuum glass) or laminate the glass so that it fits into any profile — completely custom-made. Easy, right?

One of our regular partners in the field of aluminum frames is Smits Kozijnen. Want to know more about our collaborations or curious about reliable installers in your area? Be sure to check out the partner page.

Is BENGglas soundproof glass?

BENGglas is not only very strong in insulation but also effective in blocking sound. We measure this with the RW (C; Ctr) values — the higher the number, the quieter your home becomes.

Here are the figures at a glance:

  • Double glazing has a general sound insulation of about 31 dB, with a range of 30 to 27 dB at low and high frequencies.
  • Triple glazing scores slightly better with a general value of 33 dB, but at low and high frequencies, the sound level can vary from 31 to 27 dB.
  • BENGglas goes a step further with a general sound insulation of 36 dB and performs very consistently at low and high tones between 34 and 33 dB.

What does that mean for you? BENGglas keeps sound out better, especially those annoying low tones that you quickly suffer from. 

This way, you not only enjoy a lower energy bill but also a much quieter and more comfortable home.

Which ventilation grilles are suitable for BENGglas?

Ventilation grilles ensure a fresh air supply in your home, even when your windows and doors are closed. They help to remove moisture, thus ensuring a healthy indoor climate. Especially with well-insulated glass like BENGglas, good ventilation is extra important, because otherwise the house becomes too 'tight' and moisture problems can arise; insulating and ventilating often go hand in hand.

The good news? 

There is a ventilation grille that works perfectly with BENGglas! The company Duco offers the type GlasVent ZR AK (+), specially designed to work well with vacuum glass. This way, you enjoy optimal insulation and fresh air.
Want to know more? Take a look at our partner pages!