Crystal Sp. Z O.O.

Polish producer of steel doors, PVC windows and aluminum joinery. External doors and windows in our offer are available under the SplenDoor and InvesDoor brands. Behind each of the brands there are specific solutions, tailored to the contractor and the expectations of various customer groups. Our offer is distinguished by a very wide range of door models, from cheap solutions to exclusive lines of aluminum and hybrid models, which are characterized by high standards of thermal insulation and anti-burglary characteristics.