Standard and custom made wooden doors

Kostar’s, solid wood interior doors manufacturer will enrich the beauty of your home or office.
We offer our clients the best quality, exclusive, durable and beautiful solid wood interior doors. A blend of today’s technology with yesterday’s craftsmanship at an affordable price. Our classical and modern design options allow you to find interior doors (single, French/double or sliding doors) that will compliment your home or office and enhance your décor.
Our standard and custom doors are made of high quality alder and oak. We can meet your exact sizes and specifications.
The best doors in Warsaw and beyond! Please check our selection.