Windows. Doors. With passion

JSC “WINDEX” is fully specialized, innovative, quality driven, and one of the leading manufacturers of plastic (uPVC) and aluminium (ALU) windows and doors in Lithuania.

WINDEX activity is based on:

  • skilled experienced staff;
  • high quality control standards;
  • continuous improvement of manufacturing/administrative processes;
  • partnerships with the customers/suppliers;
  • selection of the best materials supplied by well-known European manufacturers.

22 years in the business

We are proud to have been improving homes for 22 years. WINDEX is one of the biggest uPVC products manufacturer in Lithuania with sustainable business growth.

Over 1.010.152 uPVC windows

Our core business is uPVC windows and doors. We constantly manufacture, deliver and install wide range of quality products. We’re an affordable 1-stop shop for everything – from windows to doors.

Over 122.003 satisfied clients

Our drive is to make our customers happy – from private flat/house owners to commercial partners.

Quality and environment policy

All our production processes are strictly controlled and monitored in accordance with EU requirements and standards. Quality standards are ensured using the quality management system DIN EN ISO 9001, environment management system DIN EN ISO 14001, CE mark, Process Quality (P-mark), constant implementation of LEAN production practices, and coordination between of all these systems.


WINDEX has one of most modern production lines in Baltic countries:

  • Production area 2200 m²;
  • 2 independent PVC production lines and 1 independent ALU production line;
  • Separate production line for non-standard products;
  • 4 and 6 heads ROTOX machineries (welding, CNC corner cleaning);
  • CNC Emmegi Phantomatic M3 machine;
  • Capacity up to 75000 PVC frame / up to 30 000 m2 of ALU per year


We seek ambitious targets and we keep our promises.

Constant learning

We understand that our ability to change puts us ahead of the game.


We listen, we are open, and we always look for a win-win solution and synergies.


We respect what we do and people around it.