About dtpalumn(D-TOP)

Your Premier One-Stop Custom Door & Window Solution

DT PALUMN (Guangdong D-Top Industry) is a leading global manufacturer with over 17 years of expertise in high-performance aluminum and wood-clad door and window systems. We specialize in delivering premium, energy-efficient solutions for high-end residential and commercial projects worldwide.

Our Strength & International Standards

Manufacturing Excellence: Our 20,000㎡ state-of-the-art facility features 6 precision production lines with an annual capacity of 50,000+ units.
Global Footprint: With 1,500+ completed projects across 30+ countries, we are a trusted partner for developers, architects, and contractors in the USA,Canada, Australia, New Zealand ，Caribbean region and the UK.

Certified Quality: Our products are rigorously tested and certified to meet global building codes, including NFRC, AAMA，NAMI ,Title 24，AS2047,AS2208,AS1208,NZS2047,NZS 4211,NZS 4666,NZS 4420,CodeMark,WERS , NAFS，CSA, and Energy Star ,UKCA,PAS 24,CE standards, ensuring top-tier thermal performance and structural integrity.
Main Product Series: Tailored for Global Markets
Based on our extensive catalog on Alibaba (D-TOP Industry), we offer five core product pillars designed for diverse climates and architectural styles:
1. Certified High-Performance Systems (USA & Australia Focus)
- NFRC & CSA Certified Series: Engineered for the North American market with superior U-Value and SHGC ratings to meet strict energy efficiency requirements.
- AS2047 Australian Standard Series: Specifically designed for the Oceania region, featuring high resistance to wind pressure, water penetration, and intense UV exposure.
- Hurricane Impact Series: Equipped with laminated safety glass to provide ultimate protection in storm-prone coastal regions.
1. Minimalist & Panoramic Sliding Systems
- Slim Frame Series: Ultra-thin profiles that maximize natural light and offer unobstructed views, perfect for modern minimalist architecture.
- Side-Press Sliding System (Industry Leading): Our flagship technology that achieves the superior sealing of a casement window with the space-saving convenience of a slider.
- Heavy-Duty Panoramic Doors: Large-scale glass panels with smooth-glide German hardware for a seamless indoor-outdoor transition.
1. Energy-Saving Aluminum-Clad Wood Series
- Natural Aesthetics: Premium interior wood (Oak/Pine) provides exceptional thermal insulation and a luxury feel.
- Weatherproof Exterior: High-strength exterior aluminum cladding protects against the elements, making it the top choice for luxury villas in colder climates like Canada and Northern Europe.
1. Classic Casement & American Hung Series
- American Single/Double Hung Windows: Traditional vertical sliding designs integrated with modern thermal break technology.
- European Tilt-Turn Systems: Dual-action hardware for versatile ventilation and superior security.
- Heavy-Duty Bi-fold Doors: Multi-panel folding systems that create wide-open spaces for patios and commercial storefronts.
1. Sunrooms & Outdoor Living Solutions
- All-Aluminum Sunrooms: Fully customizable glass house structures featuring professional drainage systems and structural stability.
- Integrated Shading Systems: Smart louvers and motorized blinds tailored for the UK and European outdoor living trends.
Why Partner with DT PALUMN?
We offer more than just manufacturing. We provide a Turnkey Service—from CAD shop drawings and original design to precision production, global logistics, and on-site installation guidance. By combining “Precision Manufacturing” with “International Compliance,” we create environments that are more energy-efficient, quieter, and safer.
“At D-Top, we don’t just make windows and doors,sunroom,curtain wall—we craft solutions. Solutions that are designed for the specific needs of each market we serve. Whether it’s in the US, Canada, the UK, Ireland, or Australia, New Zealand, we ensure that every product we produce meets the highest performance standards: from wind resistance, air and water tightness, to energy efficiency. We don’t export products—we engineer them to meet the exact requirements of local markets.

Company Features

Superior Quality

At Guangdong D-Top Industry Co., Ltd, we are committed to delivering products of the highest quality. Our stringent quality control processes ensure that every item leaving our facilities meets and exceeds industry standards.

Innovative Solutions

We pride ourselves on being at the forefront of industry innovation. Our dedicated research and development team continuously explores new materials, designs, and technologies to offer cutting-edge solutions that meet the evolving needs of our customers.

Customization Options

We understand that every project is unique, and our flexible manufacturing capabilities allow us to provide customizable products. From dimensions to finishes, we work closely with clients to create tailor-made solutions that perfectly fit their specific requirements.

Energy Efficiency

As advocates for sustainability, we prioritize energy-efficient designs. Our doors, windows, and building materials are engineered to maximize thermal insulation, reducing reliance on heating and cooling systems and promoting energy conservation.

Durability and Reliability

We believe in the longevity of our products. By meticulously selecting premium materials and employing advanced manufacturing techniques, we ensure that our offerings are built to withstand the test of time, providing lasting performance and peace of mind.

Comprehensive Service

We are more than just a product supplier. Our team of experienced professionals provides comprehensive support throughout the entire project, from initial consultation to after-sales service. We collaborate closely with clients, offering guidance, expertise, and solutions tailored to their specific needs.

Extensive Product Portfolio

With a diverse range of aluminum alloy doors, windows, and building materials, we have something for every project. From sleek and contemporary designs to classic and traditional styles, our product portfolio caters to a wide range of architectural preferences and applications.

Strong Reputation

Over the years, we have earned a strong reputation as a trustworthy and reliable company. Our commitment to quality, innovation, and customer satisfaction has garnered recognition and trust from architects, contractors, and developers across the industry.

17

Years of Experience

Why Choose Us?

Premium Aluminum Alloy Doors & Windows & Building Materials

At D-Top, we are dedicated to manufacturing high-end doors and windows. Our extensive experience in the industry has made us one of China's top suppliers of energy-efficient appliances. We are proud to offer a wide range of products manufactured to meet strict quality standards. Our in-house brands, DTPALUMN and DTPCHINO, represent excellence and innovation, ensuring that our customers receive top-notch products and exceptional service.

Custom door and window factory
Innovative Design and Craftsmanship
Has passed the European and American product certification
High Quality and Performance
Environmental-Friendly and Energy Efficient
Mature Supply Chain and Global Delivery Capability
24 / 7 Availability For Customer Service and Support

More than 80% of customers choose to cooperate with us after visiting the factory

Get in touch with us to open your door and window business model! I believe we will become not only business partners, but also friends

About Our Factory

We are a one-stop customized production of doors and Windows and sunroom factory, with an independent production workshop, more than 15 years of experience in the design, and has rich experience in management and excellent quality control ability and product certification