Professional patio doors Manufacturer

Premium Patio Doors for Homes and Businesses in the USA

Grandsea Windows & Doors is a trusted name in high-quality patio doors designed for modern homes and commercial properties. Our custom solutions combine advanced technology, stylish design, and superior functionality—making us one of the most reliable patio door manufacturers in the USA.

We specialize in patio doors that balance security, comfort, energy efficiency, and beauty. Every model is crafted with durable materials, security accessories, insect screens, and integrated thermal and acoustic insulation—offering excellent value for money while meeting the highest quality standards.

Whether you’re renovating your home, building a new property, or upgrading your office space, Grandsea patio doors create bright, open interiors filled with natural light and stunning outdoor views.

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Bifold/folding Patio Door System

Our folding patio door systems give you the perfect solution for maximizing open space, allowing your indoor and outdoor spaces to flow seamlessly. It is ideal for spaces that require large openings, such as basements, the connection between the balcony and the living room.

Panoramic Series double Sliding Glass Patio Doors

Our Panoramic Series Sliding Patio Doors are ideal for modern homes, with wide views and smooth operation, adding endless fun to your life. This product is particularly suitable for modern style homes, villas, and any space that requires a wide view.

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Customizable Patio Door Designs

Every home and business is unique. That’s why we offer a wide variety of patio door designs to fit your exact needs. Choose from:

Multiple sizes and opening mechanisms (sliding, bifold, tilt-and-turn, French doors)
Premium materials including uPVC, aluminum, and aluminum-clad wood
A wide range of custom colors and finishes

With these options, you can easily design a patio door that matches your lifestyle, architecture, and personal taste.

Types of Patio Doors We Manufacture

Tilt & Turn Patio Doors

Flexible design with inward tilt for ventilation or full swing for easy access. Ideal for compact spaces.

Sliding Patio Doors

Smooth-gliding doors with wide openings, perfect for extra-large spaces.

Bifold Patio Doors

Accordion-style folding panels that open up entire walls, creating seamless transitions to gardens, patios, and decks.

French Patio Doors

Timeless and elegant, adding a classic touch to modern and traditional homes alike.

No matter the type, our doors are engineered for strength, security, and year-round comfort.

Best Materials for Patio Doors

uPVC Patio Doors – Low-maintenance, weather-resistant, and excellent for insulation.
Aluminum Patio Doors – Strong, sleek, and durable with modern appeal.
Aluminum-Clad Wood Patio Doors – Warm, natural interiors with an aluminum exterior for long-lasting performance.

We guide every customer to select the right material based on local climate, energy needs, and design preferences.

Added Comfort & Security Features

Our patio doors are more than just stylish—they’re designed for everyday comfort and safety:

Insect Screens – Keep your home bug-free during warm evenings.
Sun Protection – Prevent overheating and add privacy with optional sunshades.
Anti-Theft Systems – Multi-point locks, laminated safety glass, and lockable handles for superior protection.

Why Choose Grandsea Windows & Doors in the USA?

Direct manufacturer pricing
Tailored design and installation guidance
Energy-efficient and eco-friendly options
Strong warranties and after-sales support

At Grandsea Windows & Doors, we don’t just sell patio doors—we deliver long-lasting solutions that make your home more secure, comfortable, and beautiful.

Contact us today for a free consultation and competitive quote.

Get Every Answers About patio doors

What type of door is best for a patio?

The choice of patio door material should align with your specific needs, including style preferences, budget, and local climate. Aluminum alloy, aluminum-clad wood, and uPVC profiles are all commonly used as the main frame for patio doors. The multi-chamber design and two-stage sealing system of uPVC and aluminum alloy profiles ensure excellent thermal insulation, soundproofing, and optimal living comfort.

What is the height of the patio door handle?

Handle positions are typically set based on the sash height during manufacturing. If your installation requires a custom handle height, we can accommodate this upon request. Please contact us with your specific requirements.

Common handle heights (depending on sash height) include: 145 mm, 210 mm, 320 mm, 420 mm, 520 mm, 620 mm, 720 mm, and 1070 mm.

What accessories are installed on the patio doors?

Our patio doors are fitted with high-quality titanium-coated hardware. The accessories include adjustable bolts that enable automatic height adjustment and smooth rolling. These bolts operate smoothly and precisely, securely locking into the frame. Additionally, the doors feature anti-misoperation locks, providing protection against sash lifting and impact.

What is the best way to install a new patio door?

Professional installation is strongly recommended for new patio doors. Whether for renovation or new construction projects, our team will provide expert assistance throughout the process.

How much should I spend on a patio door?

Our patio doors offer good value for money. The exact price depends on various factors such as size, material, and model. For example, uPVC patio doors are generally more affordable than those made of wood or aluminum. Options like decorative glass or customized frame widths can also influence the price.

We recommend focusing on quality and long-term benefits rather than price alone when purchasing a patio door. Patio doors are a long-term investment that will provide benefits for many years.