Alumaster window accessories support the correct installation, adjustment, and servicing of joinery, ensuring structural stability, smooth operation, and long-lasting tightness. The offer includes solutions tailored to leading profile systems, making it easy to build a consistent and repeatable standard for production and installation.

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post connectors

Certified post connectors ensure rigid, repeatable profile connections in window structures, stabilizing corner geometry and effectively transferring loads. We offer K-type (cross connections) and T-type (straight connections) solutions in ZnAl or PVC versions, with dedicated sealing accessories, which facilitate high tightness and durability. The connectors are precisely matched to popular profile systems, making installation quick and the result aesthetic and reliable over a long period of use.

adjustment keys

Adjustment keys are practical tools for precise adjustment and servicing of window fittings – from pressure pins to scissors and Multi-Matic system components. The range includes TX15/TX20 keys for adjusting i.S. pins, a VZ key for scissors, and accessories to support the installation of connectors, allowing you to quickly adjust the pressure, geometry, and smoothness of the sash. Ergonomic design and compatibility with popular systems reduce installation time and minimize the risk of errors in production and service.

washers

Base glazing washers (snap-on, with stops) are used to properly support the glazing unit and maintain tightness; they come in various heights and for different glass thicknesses. Thanks to standardized dimensions, installation is quick and repeatable, and the window retains its load-bearing and insulation parameters for years.
MULTI POWER washers ensure proper support and geometry of the bottom/top hinge, stabilize the sash, and facilitate precise adjustment – they are durable, gray “mass-colored,” with left/right adjustment. The washers are an integral part of concealed hinges.

5 reasons why you should get to know us.

/01

Fast order fulfillment

With our warehouse located in central Poland and large stock levels, we fulfill orders on time, even within 48 hours. We minimize production downtime thanks to the constant availability of key components.

/02

Complete solutions

We will prepare an “all-in-one package” for you – complete threshold systems, window fittings, and other necessary components. Everything you need for woodwork production in a single delivery.

/03

Technical advice and support

We will help you choose the perfect solutions for your production, including non-standard ones. We will conduct an audit, provide instructions, and share our experience—at no additional cost.

/04

Tightness without compromise

We will provide you with solutions that ensure permanent tightness without the need for milling and installation barriers. We will help you choose certified systems that comply with the requirements of premium, passive, and renovation construction. This will reduce the number of complaints, improve the quality of installation, and increase customer satisfaction. We will help you choose the perfect solutions for your production, including non-standard ones. We will conduct an audit, provide instructions, and share our experience at no additional cost.

/05

Fewer complaints

Uncompromising tightness – solutions ensuring permanent tightness without the need for milling or creating architectural barriers. We provide certificates for watertightness, acoustics, and passive house.

98% OTIF

On time in Full

We deliver on time and according to the order.

<1%

Complaints

Products undergo rigorous quality control

82%

Returning customers

Trust translates into long-term cooperation

9 000+

Orders completed per year

Proven effectiveness in practice by thousands of entrepreneurs

Our quality stands behind the numbers.

Order a complete set from a single source – full compatibility.

By joining our B2B platform, you have all your products and documents in one place – faster, more convenient, and always up to date.

Quick access to the full range – always with up-to-date prices and specifications

Easier purchase management – organize orders and documents in one panel

Repeat orders in just a few clicks – save time in your daily work

Simple document management – invoices, statuses, and cooperation history always at your fingertips

This is what working with us looks like

From the initial order to installation and ongoing service – we show you what happens next, step by step.

You are purchasing a product

You choose the solution that suits your project

Order verification

We check that the order is complete and well secured.

We ship

We deliver your order quickly, within 48 hours

We provide on-site support

We check the correctness of the installation and provide practical tips.

You choose the solution that suits your project

We check that the order is complete and well secured.

We deliver your order quickly, within 48 hours

We check the correctness of the installation and provide practical tips.

Our cooperation does not end with the shipment of the product.

Technical consulting

You receive support from experts who will help you choose the best solution for your project.

Preparation of documentation

We will provide a complete set of materials to ensure smooth installation and operation.

Staff training

We provide your team with practical knowledge so that they can act confidently and independently.

Assembly audits

We check the correctness of implementation on site to ensure that everything is working according to plan.

Do you have a question, doubt, or something that interests you? Write to us

We respond within 24 hours on business days. By email or phone, whichever is more convenient for you.

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+48 566 231 323

See how our solutions work in practice

New threshold system – fewer complaints and faster assembly at the factory

We support designers in creating safe, comfortable, and visually consistent spaces.

Our low thresholds, interior products, and minimalist forms fit in with modern standards of aesthetics and functionality—without barriers and without technological compromises, increasing the usability of any space.

Real implementations, concrete results.

36 reviews 4.2/5

Marek Mikolajczyk

Właściciel firmy X

I recommend them, excellent contact, very friendly, competent service. Everything exactly as it should be. Thank you and see you soon.

S. K.

Właściciel firmy X

I must say that the service at this company/customer contact – at a very high level – helped identify the damaged fitting, found it in stock, and organized shipping very quickly. I am extremely satisfied.

Filip S.

Właściciel firmy X

See what questions customers like you are asking

What does the process of implementing your solutions into production look like?

What does the implementation process for your production solutions look like? The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system. We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training

What does the process of implementing your solutions into production look like?
The implementation process is simple, transparent, and fully tailored to your technology. We start with a free technical consultation, during which we learn about your needs, the type of joinery, and production requirements. Based on this, we propose the best solution – dedicated to each PVC, ALU, wood, and steel joinery system.
We then provide a complete set of materials: technical documentation, assembly diagrams, and implementation instructions. If you need it, we also offer:

  • Support during trial assembly
  • And assembly audits
  • Team training