Market-leading system-specific accessories for windows and doors

We speak the language of window manufacturers.

Our products don't fit into a standard catalog. They fit your profile system.

For over 50 years, we have been developing and manufacturing easy-to-install, durable, and technically precise accessories for window and door systems. Our components connect, reinforce, simplify, and ensure what matters most: smooth everyday operations.

Do you have any questions about our products?

Whether it's your first inquiry or a specific project: We are happy to support you further.
Contact us via our form – together we will find the right solution for your request.

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Sustainable plastics technology with precision, experience and systems understanding

No need to look to the future. At PHI, we already process materials sustainably today.

Our capabilities at a glance:



  • 20 modern injection molding machines
  • Production of small parts up to large-volume components
  • Processing of over 90% regranulate content – even for demanding components
  • Material processing of PVC, PP, engineering plastics and complex recyclates
  • Research and pilot projects of industrial mixed fractions and special materials (e.g. UBQ™)
  • Opportunity for sampling & series production approval


More than just a supplier:
We are a development partner.

Smart materials, precise processes, powerful results. We bring your idea to series production faster and more reliably.

Our solutions

Pipe laser processing
Precise. Burr-free. Digital.

Precise pipe and profile machining in a single pass – efficient, reproducible and exactly tailored to your components.

More about laser cutting