Built for U.S. Projects. Supported from Drawing to Delivery.
More than price — U.S. projects need a supplier who understands drawings, specifications, deadlines, packaging, logistics, and project coordination. Built for U.S. residential and commercial projects, we support custom sizes, drawing review, certified product options, and project needs from quotation through final delivery.
Certification & Compliance Support
Intertek
Testing & CertifIcation
NFRC
National Fenestration Rating Council
NAMI
National Accreditation & Management Institute
ENERGY STAR
Energy Efficiency Certification
CSA
Canadian Standards Association
CE
EU Conformity Mark
IAS
Laboratory Accreditation
AAMA
American Architectural Manufacturers Association
Product Details / Features
Thermal-Break Profile
Improved insulation and structural performance.
Multi-Point Locking
Secure and smooth locking system.
Drainage Design
Integrated drainage for weather resistance.
EPDM Sealing
Durable gasket system for air and water tightness.
Narrow Sightline
Clean visual profile for modern projects.
Custom Glass Options
Low-E, laminated and acoustic glass options.
Download Center
NFRC certification
PDF · 2.4 MB
CSA and AAMA certificates
PDF · 3.1 MB
CE Certificate
PDF · 15.5 MB
NAMI Structured Certificate
PDF · 1.2 MB
Product Solutions for U.S. Projects
Explore certified aluminum window and door systems for U.S. residential, multifamily, and commercial projects, with custom sizing, thermal-break options, tested performance, project documentation, and factory-direct support.
Selected U.S. Project Cases
Explore selected aluminum window and door projects completed across the United States. See how customized systems, performance-focused configurations, and project-specific support have been applied to residential, multifamily, and commercial buildings. Each case highlights the project location, product solution, design requirements, and final installation results.
Hawaii Commercial Office Garage Door Project
Commercial Office | 2023
Honolulu, Hawaii, USA
A modern aluminum garage door system designed to complement the office building’s clean exterior and tropical landscaping.
Arkansas High-End Residential Window & Door Project
Public Building | 2021
Arkansas, USA
A high-end single-family residential window and door upgrade project in Hot Springs
Dallas High-End Residential Window & Door Project
Apartment | 2026
Dallas, TX
this project aims to preserve the home’s elegant character while improving natural daylight and living comfort.
Built for U.S. Builders. Backed by Certified Performance.
Window and door sourcing problems that can put your project schedule, budget, and installation at risk:
- Incorrect sizes or specification mismatches
- Inconsistent quality across production batches
- Delayed production and missed delivery schedules
- Insufficient packaging and shipping damage
- Missing performance reports or certification documents
- Limited custom sizes and configurations
- Slow technical communication and drawing confirmation
- Limited support after order placement
Why U.S. Builders Trust Our Systems
NFRC
Verified Energy Ratings
ENERGY STAR
Energy Efficiency Certification
CSA
Canadian Standards Association
Title 24
California Energy Code Support
NAMI
National Accreditation & Management Institute
Why Choose DTPALUMN
Factory-Direct Supply
Project pricing and direct technical communication.
Custom Engineering
Support for drawings, sizing and system selection.
Quality Control
Inspection throughout production and packing.
Stable Export Delivery
Secure packing and coordinated international shipping.
10,000 m²
Manufacturing facility
50+
Countries served
1,500+
Projects completed
17+
Years of experience
Factory Visit
Contact Our Factory & Project Team
Company: Guangdong D-Top Industry Co., Ltd.
Factory: Foshan, Guangdong, China
Phone: +86 755-21073329
WhatsApp: +86 135 1027 3915
Email: info@dtpalumn.com
Factory & Project Videos
Installation & Technical Support
Learn about installation details and project coordination.
Factory Production Process
Review our workshop, machining and assembly process.
Project Case Display
Explore residential and commercial project applications.
How It Works
1
Send Project Details
Share drawings and requirements.
2
Confirm Specifications
Review sizes, glass and hardware.
3
Get Quotation
Receive project pricing and lead time.
4
Production
Manufacturing with quality control.
5
Delivery
Secure packing and coordinated shipment.
Ideas & Inspiration
Frequently Asked Questions
Answers to common sourcing concerns from U.S. builders, contractors, dealers, and project teams.
We review project drawings, opening schedules, dimensions, glass requirements, and configurations before production. Final specifications are confirmed with the customer before manufacturing begins.
We follow standardized material requirements, production procedures, inspection checkpoints, and pre-shipment quality control to improve consistency across every batch.
Yes. We support custom dimensions, opening styles, frame systems, glass options, colors, hardware, and performance configurations based on project requirements.
We confirm the production timeline before manufacturing, provide progress updates, coordinate packaging and shipping, and work according to the project’s required delivery schedule.
Products are protected with film, foam, corner guards, reinforced packaging, wooden crates or steel racks, and container-loading plans designed to reduce transit damage.
We provide drawing confirmation, product data, certification and performance documents, installation guidance, replacement-part support, and assistance with issues after order placement.
Customer Reviews
★★★★★
“DTPALUMN helped us keep the project moving with fast responses, clear updates, and dependable delivery support.”
Michael R.
Window Dealer · California
★★★★★
“The product quality is reliable, and the team is easy to work with on custom sizes, specifications, and order follow-up.”
Amanda L.
Builder Partner · Texas
★★★★★
“Their technical support and project coordination made the ordering process much smoother for our commercial job.”
Daniel K.
Project Contractor · New York