Do you export entry doors to India, Pakistan, Bangladesh and Sri Lanka?

Yes. We supply villa owners, builders, architects and distributors across South Asia, including India, Pakistan, Bangladesh, Sri Lanka, Nepal and the Maldives, with quotations on FOB or CIF terms to major regional ports such as Nhava Sheva, Mundra, Chennai, Karachi, Chittagong and Colombo.

Which entry door material is best for coastal and monsoon regions?

For coastal cities with salt-laden air, stainless steel and cast aluminum doors with corrosion-resistant finishes perform best. For heavy monsoon rainfall, choose a door with multi-point locking, compression gaskets and a drained threshold. Unlike solid timber, metal doors do not swell, warp or attract termites in high humidity.

Can you customise the door size and design, including Vastu preferences?

Yes. Every door is made to order. Our engineers provide free CAD shop drawings and can adjust width, height, pivot position, opening direction, panel pattern, colour and wood-grain finish to match your architectural drawings and Vastu-based layout preferences.

What certifications do DERCHI doors hold?

Our products are tested and certified to international standards including CE, ISO 9001, AS 2047 and UL fire ratings, backed by 8 international certifications and more than 30 design and technology patents.

What information do I need to send for an accurate quotation?

Please share the finished opening size, door material, preferred design or reference photo, colour and finish, lock and hardware requirements, quantity, destination port or city, and your project timeline. Architectural drawings help us quote faster.

How are doors packed and supported after delivery?

Doors are protected with surface film, foam corners and reinforced export crates for long-distance sea freight. Each shipment includes installation instructions, and our English-speaking engineers provide remote installation guidance and after-sales support.

Luxury Entry Door Manufacturer for South Asia | DERCHI

Product Highlights

Flexible Casement Layout

Center fixed panel with two side opening sashes for a balanced facade and practical ventilation control.

Thermal Break Frame

Aluminum magnesium alloy thermal break profile helps improve thermal insulation performance for residential and commercial projects.

Double Glazing Build

5+20A+5 insulated glass structure supports daily use with a stable window configuration.

Multi-point Security

Multi-point locking hardware improves closing stability and supports secure operation.

Optional Insect Protection

304 stainless steel mesh or high-transparency mesh is available for everyday ventilation with added screening function.

Product Visuals

120 Series Casement Window Center Fixed Sash Side Opening Thermal Break Aluminum Magnesium Alloy Window - Scene Image

120 Series Casement Window Center Fixed Sash Side Opening Thermal Break Aluminum Magnesium Alloy Window - Detail Shot

Company Introduction

Established in 2017, Henan Zhongzheng Doors And Windows Co., Ltd. is a professional manufacturer in the Construction & Real Estate sector, operating from a 5,000-10,000 square meter facility in Nanyang, Henan, China. We specialize in the research, design, production, and installation of functional thermal break aluminum doors and windows, including high-performance solutions like our 120 Series Casement Windows. With an annual output value of US$2.5 Million to US$5 Million and a dedicated team of 51 to 100 employees, we integrate Chinese home aesthetics with international design concepts. We offer comprehensive OEM and design services, exporting 30% of our products to South America, 25% to Eastern Europe, 20% to Western Europe, 10% to North America, and 10% to Southern Europe.

Manufacturing & Specifications

Production Workflow - 120 Series Casement Window

Customization Capabilities - 120 Series Casement Window

Packaging & Shipping Specifications - 120 Series Casement Window

Frequently Asked Questions

1. Who are we?

We are Henan Zhongzheng Doors And Windows Co., Ltd., an established manufacturer based in Nanyang, Henan, China. Founded in 2017, we operate in the Construction & Real Estate industry, specializing in thermal break aluminum doors and windows.

2. How can we guarantee quality?

We ensure high quality through mature manufacturing techniques, automated equipment, and standardized workshops. Our operations are supported by dedicated quality inspectors who oversee production to maintain high-performance standards.

3. Do you support private logos or labels?

Yes, we offer both OEM and customized design services, allowing us to customize products such as our 120 Series Casement Windows according to your branding and architectural specifications.

4. What are your payment methods?

We accept payments via T/T. Our standard delivery terms include FOB, CFR, EXW, FAS, and FCA.

5. How long does the production take?

Our standard preparation and production lead time is approximately 25 days.

120 Series Casement Window Center Fixed Sash Side Opening Thermal Break Aluminum Magnesium Alloy Window