PROIN

About

About us

Proin Proje is an engineering and contracting company founded in Istanbul in 2015, working in renewable energy, construction, facades and window systems.

We manufacture, install, maintain and repair PVC window and facade products, and provide technical and corporate consulting and staffing support when needed.

As an authorised dealer for Fıratpen, Winsa and Albert Genau we produce PVC windows, doors, shutters, sliding and vertical-sliding glass systems, retractable pergolas and winter gardens. Our services also include curtain walling, steel and aluminium structures, balustrades and trade-fair stand installation.

In construction we deliver turnkey work from shell and finishing to apartment renovation. In renewable energy we install, operate and advise on biogas and solar projects with our partners in Türkiye and Germany.

Lotus Park

Our values

Quality

Certified profiles, tested systems and our own installation team.

Innovation

Current technology for buildings that use less energy.

Sustainability

Building and producing without harming nature.

One point of contact

One team and one responsibility from survey to handover.

Milestones

  1. 2015Founded in Istanbul; energy partnership with Bionardo and Kraftanlagen
  2. 2019Facade and joinery works on school and residential projects
  3. 2020The 34-villa Yaşam Köşkleri project in Marmaris

Brands and partners

  • Fıratpen

    Türkiye
    Authorised dealer

    Authorised manufacturing dealer for PVC windows, doors, shutters and sliding systems.

    firatpen.com.tr

  • Winsa

    Türkiye
    Authorised dealer

    Highly insulated PVC profile systems including the Dorado, Revotech and Safir series.

    winsa.com.tr

  • Albert Genau

    Türkiye
    Authorised dealer

    Authorised dealer for windows, doors, sliding glass, retractable pergolas and winter gardens.

  • Solaray

    Türkiye
    Solution partner

    Our solar energy partner in Türkiye.

  • Bionardo

    Deutschland
    Solution partner

    Our biogas partner since 2015.

  • Kraftanlagen

    Deutschland
    Solution partner

    Our German partner for energy plant projects.

  • Çuhadaroğlu

    Türkiye
    Supplier

    Supplier of the polyamide thermal break used in our insulated aluminium systems.

    cuhadaroglu.com.tr

  • Sadestone USA

    USA
    USA Showroom

    Atlanta, GA
    +1 404 889 7070
    info@sadestoneusa.com

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