From the project to the execution, through the sale and installation of products in Aluminum or PVC, the company guarantees a range of services capable of meeting the most demanding expectations of its customers, both national and international.

Its distinctive technical staff, the perspicacity and conceptual agility of its solutions, combined with its high financial strength, guarantee F2J’s responsiveness.
Today F2J is a manufacturer of PVC products under the
 Deceuninck brand.
Certified installer of the Aluminier Network, F2J also works with products from the Technal brand, among others.

Aluminum, glass and PVC

We are Manufacturers

We have been building the future for 23 years with you in mind and we are proud to be currently a leading and recognized company in the market.

  • Casement Windows
  • Tilt and Turn Windows
  • Tilt Windows
  • Projecting Windows
  • Pivoting Windows
  • Sliding Windows
  • Guillotine Windows
  • Harmonium Windows
  • Oscilloparallel Windows
  • Casement Doors
  • Pivoting Doors
  • Harmonium Doors
  • Sliding Doors
  • Monoblock Panel Doors
  • Tempered Glass Doors
  • Doors with blades
  • Double-Action Doors
  • Suspended Doors
  • Blinds and External Venetian
  • Shutters
  • Building Facades
  • Aluminum Gates
  • Seccional Gates
  • Guards and Railings
  • Pergolas
  • Coating and Shading Blades
  • Roofs and Skylights
Our Vision and Values

Our Mission

"To be, in Portugal, the best company to manufacture and install aluminum and PVC frames."

Our values include:

  • Commitment to customers, partners, know-how and technology
  • Openness, motivation and respect for employees
  • Ability to accept major challenges and lead them to the end
  • Critical attitude, dedication to quality and personal improvement
  • Take full responsibility for commitments
We are here for you

Can we help?

Get expert advice
for your remodeling or construction project

contact us here


With the progressive mentality that characterizes us, we are always looking for new options. We bet on qualified technicians to be able to deliver works of excellence and with the quality that is required of us.


All of our products are guaranteed and certified according to European CE standards.
All of our production meets the most stringent safety requirements set out in Portuguese legislation


With our products you will achieve savings that will be reflected in the energy bill and the environment. You will achieve greater thermal comfort in your home, obtaining energy savings of approximately 40%.

We value quality

Our Certificates


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