Chinese Custom Exterior Doors Manufacturer
Chinese Highest Quality Exterior Doors for USA
A secure, well-crafted exterior door sets the first impression for any project, whether it’s residential housing or a commercial building. At Grandsea, we specialize in manufacturing and exporting high-performance exterior doors for the U.S. market, supplying importers, wholesalers, builders, and developers who demand both style and reliability. Our range includes modern front doors with sidelights, aluminum and steel entry doors, glass patio systems, wrought iron models, and matching garage side doors—all designed to meet the needs of American projects at scale.
Every Grandsea exterior door is produced with a focus on energy efficiency, weather resistance, and long-term durability, ensuring compliance with U.S. residential and commercial standards. From the snowy winters of Minnesota to the coastal climates of Florida, our doors are tested to perform in diverse environments. With flexible choices in materials, finishes, hardware, and glazing options, along with OEM/ODM customization, we help U.S. distributors and contractors deliver products that balance design, performance, and competitive factory-direct value.
Each door is built for energy efficiency, weather resistance, and strong security—meeting or exceeding U.S. residential and commercial standards. With options in materials, finishes, and glass inserts, our doors combine beauty and performance to elevate your home’s exterior.
Customized Exterior Door Design
The design of your exterior door is defined by its components and colors. You can customize every detail to your needs, including:
Structural Elements: From the door sash to the opening mechanism (e.g., inswing, outswing).
Architectural Styles: From sleek, modern designs to charming country-inspired styles.
Finishes & Colors: A wide choice of durable varnishes, glazes, and powder coatings.
Custom Dimensions: Specify the exact width and height, and add features like sidelights or transoms.
Glazing Options: Choose from clear, tinted, or decorative glass in various shapes and types.
Hardware & Access: Select from a range of handles, or integrate modern access control like fingerprint scanners.
Custom exterior doors from Grandsea need to meet the highest quality requirements before they can be shipped.
Exterior door types
Why U.S. Buyers Trust Grandsea Exterior Doors
Proven Experience & Global Trust
With over 800+ projects completed, a professional team of
100+ skilled members, and more than 2,500 satisfied
business clients worldwide, Grandsea is a reliable partner for U.S.
importers, wholesalers, builders, and developers seeking high-quality exterior
doors at scale.
Made to U.S. Specifications
All doors are manufactured with millimeter-level precision for seamless
integration into standard U.S. frames and rough openings—including
inswing/outswing configurations and ADA-compliant options.
Engineered for American Climates
From the snowy winters of Minnesota to the coastal humidity of Florida, our doors are tested for:
- Thermal insulation (NFRC & Energy Star equivalents)
- UV and corrosion resistance
- Air and water infiltration prevention
Custom-Built for Large-Scale Projects
Whether supplying residential developments, commercial buildings, or renovation projects, we provide full design flexibility:
- Materials: Aluminum, steel, wrought iron, composite, solid wood (oak, mahogany, cherry)
- Finishes: Powder-coated, anodized, woodgrain wraps, matte black, bronze, white, etc.
- Styles: Craftsman, contemporary, traditional, coastal, rustic
- Glass: Clear, frosted, low-E, insulated, decorative leaded or etched glass panels
FAQ'S About exterior doors
Which exterior doors are suitable for side entrances?
Exterior side doors play a crucial role in the design of outdoor areas such as patios, garages, or basements. They not only provide additional access but also influence the overall appearance of a home. We offer a variety of designs and materials for side doors to meet personalized needs. Whether leading to a garden or connecting to a garage, they provide both secure functionality and attractive design.
How effective is the thermal insulation of your front doors?
The thermal insulation performance of our insulated entrance doors typically exceeds the strict Ud value requirements for passive houses. The core structure works in tandem with an advanced sealing system to ensure excellent thermal insulation, effectively preventing drafts even in strong winds and resisting moisture penetration during storms.
How secure are your exterior doors?
When choosing an exterior door for your home, security is paramount. Our doors are equipped with advanced security features, including multi-point locking systems, reinforced door frames, and high-quality latch mechanisms. Burglary resistance is our top priority, giving you peace of mind.
How long does it take for an exterior door to be produced?
We understand that production time is a critical factor in construction schedules. That’s why you’ll find that our carefully selected exterior doors can be delivered within two weeks of placing your order. Our proven door and window manufacturing technology enables you to move your construction projects forward quickly without compromising on quality.
Our proven manufacturing technology enables you to move your construction projects forward quickly without compromising on quality. We pride ourselves on speed and precision.
