Kozijn Techniek | Hoogwaardige Kozijnen, Ramen en Deuren

Durable, high-performance window and door solutions tailored to your project

High-quality window systems

We deliver advanced window systems that meet the highest standards for insulation and durability. Our aluminium and PVC window solutions offer the perfect balance between aesthetics and technical performance, making them ideal for both modern new-build projects and large-scale renovations.

Roller shutters for enhanced security

Our electric roller shutters provide superior sun protection, sound insulation and increased security. Thanks to their robust construction and modern automation, they are the ideal solution for both residential and commercial projects where comfort and privacy are essential.

Exterior doors for construction projects

Explore our extensive range of exterior doors that combine superior insulation with timeless design. Our solutions are carefully selected to meet the highest international standards for security and durability, perfectly suited for modern architecture.

Custom-made window sills

Complete your project with our high-quality window sills. We offer a wide range of materials and finishes that integrate seamlessly with any interior concept. Our products are scratch-resistant, low-maintenance and manufactured to precise dimensions for fast and efficient installation.

We exclusively use high-quality profile systems

WINDOWS · DOORS · WINDOW SILLS · ROLLER SHUTTERS

High-quality custom PVC and aluminium façade systems for windows and doors

We supply high-quality windows, doors, window sills and roller shutters for new-build and renovation projects across the Netherlands. Our systems are designed to meet the technical and logistical requirements of professional construction companies. From durable PVC profiles to modern aluminium solutions, we deliver certified quality that ensures energy efficiency and long-term performance.

Satisfied clients

Years of experience

Completed projects

Our projects - custom windows, doors and roller shutters

We specialize in supplying windows, doors, roller shutters and window sills for professional construction partners.

Our products are used in a wide range of projects – from renovation to new construction – where quality, precision and reliability are at the core.

By working with high-quality systems and materials, we deliver solutions that meet the highest standards in insulation, durability and finishing.

Ready for your next construction project?

Schedule a no-obligation consultation and discover how our high-quality window systems and complete solutions can take your project to the next level. We provide technical advice and competitive quotes for the professional market.

Examples & applications

Practical solutions for windows, doors and window sills used in professional construction projects.

Moderne bakstenen woning met grote zwarte raamprofielen en houten terras.

Moderne zwarte voordeur met design handgreep en zijglas voor natuurlijke lichtinval.

Strakke witte gevel met moderne grijze voordeur en glazen zijlicht.

Moderne vrijstaande woning in Nederland voorzien van hoogwaardige isolerende kozijnen en duurzame dakramen

What our clients say about us

We had our home fully renovated, including new window frames on the ground floor and dormers. The dormers were adjusted exactly to our preferences, new doors were installed, the entrance was relocated, and the exterior of the house was insulated. All of this was completed at a very fair price.Onze ervaringen zijn: harde werkers, van vroeg tot laat bezig. Bijna non-stop want ook al hebben we het vaak gevraagd, nemen ze weinig tijd om koffie te drinken. Alles wordt netjes afgewerkt en opgeruimd. Ook in het weekend gaan ze gewoon door als dat nodig is. Wij vinden het toppers en prijzen ze ook graag aan bij familie en vrienden.

It has been 3 years since Lukasz renovated my home, and I am still very satisfied. He replaced all the wood elements of my house with Keralit and installed new PVC window frames and sliding doors. Everything behind the Keralit was fully insulated again. It was a major project, but everyone tells me how beautiful the house looks and how neatly everything was finished. Lukasz is highly skilled and very pleasant to work with. He always finds a solution. He works very hard together with his team, and there is always clear communication. We are still in contact.

Recently, this company replaced all the window frames in our home, installed triple glazing, roller shutters on all windows, and large French doors leading to the garden. Everything was finished in anthracite PVC, and the result is truly beautiful. Het werk is zeer professioneel en netjes uitgevoerd. De afwerking is strak en je ziet dat er oog voor detail is geweest. Tijdens het project was er één klein puntje dat niet helemaal goed was, maar dit is direct en zonder discussie opgelost. Dat laat zien dat service en klanttevredenheid hier serieus worden genomen. Wij zijn ontzettend tevreden met het eindresultaat en kunnen dit bedrijf absoluut aanbevelen aan iedereen die op zoek is naar kwaliteit en vakmanschap

What started as a quote for replacing our window frames quickly turned into you becoming our main contractor. We now have beautiful new frames, a new front door and roller shutters. You also helped us spontaneously with challenging steel doors and gave useful tips for other work around the house. We are definitely returning customers! Whenever we need anything again, you will be the first we call – because our home deserves more Lukasz Technik. Highly recommended – honest, reliable and always delivering on your promises.

We are extremely happy to have you as our contractor! You and your team delivered outstanding work. You always keep your commitments and actively support us with solutions in situations where we, as clients, are unsure how to proceed.

HOME_EN