★★★★★

Premium Window Frames with the Widest Nose Profile on the Market

Top brands such as Schüco, Salamander, Aluplast and Gealan — with personal guidance from quote to completion. Delivery and installation within 4–6 weeks.

✅ Up to 10 years warranty
💶 ISDE subsidy assistance
🛡 Burglar-resistant
Request a free quote View products
★★★★★

Top Brands

Schüco, Salamander, Aluplast & Gealan

⚡

Installation in 4–6 weeks

Fast delivery and professional installation

🔒

Burglar-resistant

5-point locking and single-key system

🤝

Owner on every project

Personal guidance from start to finish

Our range

Our products

Top profiles from Schüco, Salamander, Aluplast and Gealan — available in dozens of colours with a high-quality finish.

Custom PVC window frames - KozijnenSet Lelystad

PVC Window Frames

We work with the widest nose profile on the market — the stiffest and most durable version available. Also available as foam-filled profiles for extra insulation.

  • Widest nose profile (stiffest class)
  • Foam-filled profiles for maximum insulation
  • Dozens of colours (not just 5–6)
  • Brands: Schüco, Salamander, Aluplast, Gealan
Exterior doors and sliding doors - KozijnenSet

Exterior Doors

Burglar-resistant doors with 5-point locking and a single-key system for all your doors. Security and convenience in one.

  • 5 bolts: 3 standard + 2 extra (top & bottom)
  • One key for all doors in your home
  • Lift-slide and tilt-slide systems
  • Dozens of colours available
Roller shutters and sun shading - KozijnenSet

Roller Shutters

Excellent protection against sun, noise and unwanted visitors. Suitable for both new builds and existing homes.

  • Manual or electric operation
  • Smart home integration available
  • Models: SK45, SKP, SKO-P, DRUTEX
  • EPDM rubber seals
Terrace systems and glass sliding walls - KozijnenSet

Terrace Systems

Glass sliding walls that seamlessly connect your living space with the garden. Maximum daylight and optimal ventilation all year round.

  • Lift-slide and folding systems
  • 6-chamber profile with 3 seals
  • Sound-insulating and burglar-resistant glass
  • Up to 2500 mm sash height
🛡️ Your assurance

Our warranty

At KozijnenSet you choose quality with comprehensive warranty on every component

🏗️
up to 10 years

Factory warranty on PVC profiles

Our profiles from Schüco, Salamander, Aluplast and Gealan come with manufacturer's factory warranty. This means years of assurance regarding colour fastness, dimensional stability and durability.

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up to 5 years

Warranty on the complete window frame

On the entire window frame — profile, glazing and hardware — we offer a standard warranty. The exact terms and duration can be found in our quote.

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warranty

Warranty on installation

Our own installers fit every window frame expertly and in accordance with applicable standards. After completion, you can count on our installation warranty — because properly installed is just as important as properly made.

💶 Save with a subsidy

ISDE subsidy for your windows

We help you obtain a Dutch government subsidy for energy-saving measures on projects in the Netherlands

We handle the paperwork, you benefit from the subsidy

Through the ISDE (Investeringssubsidie Duurzame Energie en Energiebesparing) — a Dutch government subsidy for sustainable energy and energy-saving investments — you can receive a subsidy for replacing window frames and glass. KozijnenSet helps you with every step of the application process.

  • ✓ Complete documentation — we provide all invoices, technical specifications and parameters required by RVO (Netherlands Enterprise Agency)
  • ✓ Subsidy reporting code — you receive from us the required reporting code for the applied glass and insulation solutions
  • ✓ Personal guidance — we guide you step by step through the subsidy application with RVO
  • ✓ Higher success rate — thanks to a complete dossier with all required codes and documents
Ask about the possibilities

🏠 ISDE subsidy in brief

The ISDE is a subsidy from the Netherlands Enterprise Agency (RVO) available to homeowners in the Netherlands who invest in energy-saving measures, such as HR++ or triple glazing and insulating window frames.

Up to € 4,500

Potential subsidy per home

The exact amount depends on the type of measure, the surface area and the number of measures. We calculate for you what you can expect.

Who we are

About KozijnenSet

Craftsmanship, quality and personal contact are our top priorities

The owner on every project

At KozijnenSet you always have direct contact with the owner — who also personally supervises and inspects every installation. No intermediaries, no miscommunication and no compromises on quality.

We work exclusively with the best profiles on the market: Schüco, Salamander, Aluplast and Gealan. With the widest nose profile in the stiffest version and foam-filled variants for maximum insulation. And with dozens of colours — where others offer only five or six.

Our finishing is top-level: interior with decorative plaster mouldings and acrylic sealant, exterior with Keralit and Trespa. And if additional work is needed — such as adjusting a driveway so your doors open properly — we take care of that too.

10+
Years of experience
500+
Projects
4.9
Customer rating
KozijnenSet team - your local window frame specialist in Lelystad
Why us

Why KozijnenSet?

Discover what sets us apart from other window frame suppliers

🛡️

Widest nose profile

We work with the widest nose profile on the market — the stiffest class for maximum rigidity and years of durability.

🌡️

Foam-filled profiles

Standard and foam-filled versions for optimal thermal and acoustic insulation. Lower heating costs, more comfort.

🔒

5-point locking

Burglar-resistant doors with 5 bolts and a single-key system for all your doors. Security and convenience combined.

🎨

Dozens of colours

Where others offer 5 or 6 colours, you can choose from dozens of colours for both window frames and doors.

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Owner on every project

You always have direct contact with the owner — who also personally supervises and inspects every installation.

💶

ISDE subsidy assistance

We help you apply for ISDE subsidy. Complete with reporting code, documentation and personal guidance.

Get in touch

Request a free quote

No obligation and a response within 24 hours. Send photos for a faster quote!

📞 Contact details

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Tjalk 30 73, 8232 NH Lelystad
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+31 6 45327818
✉️
info@kozijnenset.nl
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Mon–Fri: 08:00 – 18:00
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Service area: all of the Netherlands

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