Create Comfort with German Windows & Doors
PT. Sembrani Jaya Abadi was founded in 2014 and is known for the UPVC window brand WOHNRAUM and the Premium Aluminium window brand DESCH.
Both brands provide exclusive windows and doors to create quieter, cooler, and more comfortable buildings.
With decades of architectural expertise and over ten years of experience in Indonesia, we serve residential and commercial projects in Jakarta, Surabaya, Bali, and beyond—homes, hotels, and hospitals where soundproofing, durability, and energy efficiency truly matter. MORE ->
German Tilt & Turn Windows – Smart, Practical, Proven
Most DESCH windows open inwards using the German Tilt & Turn system, one of the most versatile and reliable window designs available.
This system allows two opening modes in a single window: tilt from the top for secure ventilation or swing fully open for easy cleaning and maximum airflow. It is a benchmark of German engineering, combining comfort, safety, and long-term performance. MORE ->
Both, German Tilt&Turn and Outward-opening casement windows are available.
100% German Standards – Perfect for Indonesia
Founded by a German-born architectural engineer with decades of experience in construction Europe and southeast asia and more than ten years in the Indonesian window business, DESCH builds on a strong foundation.
We work exclusively with leading manufacturers and continuously monitor trends in Europe and Asia to ensure our products meet the highest standards. Alongside our renowned WOHNRAUM UPVC window systems, we now place a strong focus on premium DESCH aluminium windows and doors for luxury residential projects.
Soundproof Windows & Doors for Urban Living
Sound insulation is one of our core specialties. DESCH offers soundproof window and door solutions with proven performance in some of the busiest areas of Jakarta and Bali.
Through the right combination of profiles, glazing specifications, and installation details, we significantly reduce external noise and improve indoor comfort—an essential factor for high-end homes, hotels, and hospitals. MORE ->
Insulated Double & Triple Glazing for Tropical Climates
Not all double glazing performs the same. Many locally produced units offer limited insulation, with U-values around 3.0 W/m²K.DESCH uses 100% imported insulated glazing, available as:
Filled with argon gas and equipped with Low-E coatings, these glass units reduce heat transfer, lower energy consumption, block UV radiation, and improve acoustic insulation. Designed for tropical conditions, they help keep interiors cooler, protect furnishings, and deliver long-term comfort and efficiency. MORE ->
Better Soundproofing
Up to 95% noise reduction.
Enjoy a quiet home by significantly reducing traffic, street, and neighborhood noise. Ideal for busy urban areas, apartments, and homes near main roads, so you can relax, focus, and sleep better.
Superior Security
Stronger frames and Hardware
UPVC windows are built with reinforced frames and multi-point locking systems for improved protection. This makes your home safer and gives you greater peace of mind for your family and property.
Termite and Rot-Proof
No rot, no rust, no decay
Unlike wood, UPVC does not attract termites, rot, or corrode in humid tropical climates. This means a longer lifespan, less maintenance, and a window that stays in good condition for decades.
Highly Energy Efficient
Lower cooling costs — more comfort
UPVC windows with insulated glazing provide excellent insulation that helps keep heat outside and cool air inside. This reduces the need for air conditioning and can help lower your monthly electricity bills.
UPVC Alternative:
WOHNRAUM is also proudly brought to you by PT. Sembrani Jaya Abadi, ensuring top-tier engineering, seamless installation, and international quality standards for your architectural projects.
Decors & Colours
Commitment to quality
As importers of premium architectural products, our commitment to quality is unwavering. While we may not manufacture the products ourselves, our dedication to delivering excellence remains paramount in every aspect of our operations.
We select the right products for the local Indonesian market, we have experience to evaluate each product to ensure it meets our standards for durability, performance, and aesthetics.
