FAQ - Frequently Asked Questions
Tostem is a premium Japanese brand under the LIXIL Group, known for its precision-engineered aluminum and uPVC windows and doors. What sets Tostem apart is its combination of Japanese manufacturing standards, superior weather-sealing technology, sleek modern aesthetics, and energy-efficient profiles — making it a preferred choice for both residential and commercial projects in India.
Tostem offers a wide range of products including sliding windows, casement windows, fixed windows, tilt & turn windows, sliding doors, casement doors, folding/bi-fold doors, and entrance doors. Each category is available in various finishes, glass options, and frame profiles to suit different architectural styles and functional needs.
Yes. Tostem products are engineered to withstand India's diverse climatic conditions — from coastal humidity and heavy monsoon rainfall to extreme heat and dust. The frames use high-grade aluminum alloys with corrosion-resistant finishes, and the sealing systems prevent water and air ingress effectively even under heavy wind-driven rain.
Tostem windows and doors are compatible with a range of glass types including single-pane, double-glazed (IGU), toughened/tempered glass, laminated safety glass, reflective glass, and Low-E glass. Double glazing is recommended for thermal insulation and noise reduction in urban environments. Our team at Conatus can help you select the right glass specification for your project.
Yes. Conatus Enterprise provides end-to-end service — from site measurement and product customization to professional installation by trained technicians. We ensure that all products are installed in strict compliance with Tostem's installation guidelines to preserve product warranty and performance.
Installation timelines depend on the scope of the project. For a typical 2–3 BHK apartment, installation of windows and doors usually takes 3 to 5 working days after product delivery. Larger commercial or villa projects may take longer. After your site visit and order confirmation, our project manager will provide a detailed timeline.
Absolutely. Tostem windows and doors are fabricated to precise measurements, making them suitable for non-standard and irregular openings. During the pre-order stage, our team conducts a detailed site survey to record exact dimensions, ensuring every unit fits perfectly without the need for corrective civil work.
Tostem offers a manufacturer's warranty of up to 10 years on frame profiles and hardware, subject to terms and conditions. The glass panels are covered under a separate warranty depending on the glass type selected. Warranty is valid when products are installed by authorized installers like Conatus Enterprise and maintained as per guidelines.
Tostem products require minimal maintenance. For aluminum frames, wipe with a soft damp cloth and a mild detergent every 2–3 months. Avoid abrasive cleaners or solvents. Lubricate sliding tracks and hinges with a silicone-based lubricant once or twice a year. Check and clean the weep holes periodically to ensure drainage. Conatus also offers annual maintenance contracts (AMC) for hassle-free upkeep.
Conatus Enterprise maintains a stock of genuine Tostem spare parts including handles, locks, rollers, gaskets, and hinges. In the event of a part failure, raise a service request with us and our technician will assess and replace the part. Using original Tostem parts ensures continued warranty validity and product performance.
You can request a free quotation by contacting Conatus Enterprise through our website, phone, or WhatsApp. Share your floor plan or opening dimensions and preferred product type, and our team will provide a detailed itemized quote within 48 hours. For large projects, we offer a complimentary site visit to ensure accurate estimation.
Standard lead time from order confirmation to product delivery is typically 3 to 5 weeks, depending on product specifications, customization, and order volume. During peak construction seasons, lead times may be slightly longer. We recommend placing orders at least 4–6 weeks before your scheduled installation date for a smooth project flow.
Yes. Conatus Enterprise caters to individual homeowners, architects, interior designers, builders, and large commercial developers. Whether it's a single apartment renovation or a multi-tower residential complex, we have the capacity and expertise to handle projects of all scales with the same level of quality and service commitment.