modern

Professional patio doors Manufacturer

High-Quality Patio Doors at Affordable Prices

Grandsea Windows & Doors offers innovative solutions for custom patio doors for both private homes and commercial properties. Our technologically advanced products have gained recognition both nationally and internationally. We provide high-quality patio doors equipped with security accessories, insect screens, and integrated thermal and acoustic insulation—all at a price that offers excellent value for money.

If you are looking to purchase high-quality patio doors, Grandsea Windows & Doors is your ideal partner.

patio doors Inspiration

Popular Products

More than 800+ customers buy favor

4_Panel Patio Door

Bifolding 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.

silding patio doors

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.

Benefits of high-quality patio glass doors

The spacious glass patio doors enhance the living room’s brightness and sense of space. Besides allowing ample natural light, these doors offer beautiful views of the countryside.

Everyone’s taste and home are unique. To accommodate your specific requirements, we offer a wide selection of patio door designs. You can easily mix and match various materials, sizes, opening mechanisms, and custom colors to create your own distinctive look. When it comes to premium doors and windows, we have the ideal solution ready to meet your needs.

Modern patio doors also provide excellent security features. They are sturdy, durable, and offer effective protection against unauthorized intrusions.

Although patio doors typically feature large glass surfaces, they no longer pose significant energy efficiency concerns. Grandsea incorporates modern double- or triple-glazed glass during manufacturing, effectively reducing heat loss.

Patio doors with various opening types

We produce patio doors with a variety of opening mechanisms. You can purchase high-quality patio doors directly from the manufacturer at attractive prices. We recommend carefully comparing patio doors to find the best fit for your requirements, preferences, and local climate.

Tilt and turn patio doors

Tilt and turn patio doors open by tilting inward for ventilation or swinging fully open, providing versatile ventilation options. They require minimal space to operate and are typically available as two-panel (bi-leaf) units or combined with multiple components. Parallel sliding doors combine sliding and tilting functions, allowing ventilation even on rainy days.

Sliding patio doors

Sliding patio doors are another popular option, offering the widest passage openings. The new smart slide model from Granti Windows and Doors features smooth, effortless operation and can be manufactured in extra-large sizes.

Bifold patio doors

Folding sliding doors, also known as bifold patio doors, consist of multiple glass panels connected by hinges. Their accordion-like folding mechanism allows the panels to fold neatly against each other when opened, without obstructive columns or side panels. This design makes bifold doors especially suitable for wide patio openings.

Basically, patio doors are differentiated according to the opening mechanism. Which type of opening patio door you want to buy depends on the available space in your home and, of course, personal preferences,such as french patio doors. You are welcome to contact us and we will provide you with professional door and window advice to help you order the best patio door.

Which is the best material for patio doors?

Patio doors can be constructed from various materials, each with its own advantages and disadvantages. Your choice depends on your preferences. The following overview will help you make an informed decision.

UPVC

UPVC is highly resistant to rain, cold, and other weather conditions, making it suitable for doors and windows. It provides excellent thermal insulation, which is especially beneficial for patio doors. This material offers a long service life and requires minimal maintenance, remaining stable even after many years. We also offer other uPVC window options to complement your patio door design.

Aluminum

Aluminum is known for its outstanding sturdiness. It is highly weather-resistant and durable, making it an excellent choice for patio doors. Aluminum requires minimal maintenance and offers good sound insulation. Additionally, its sleek appearance is especially appealing on large patio doors.

Aluminum clad wood

We also offer patio doors and windows made from combined materials. These feature wooden frames clad with aluminum on the exterior, enhancing weather resistance, service life, and security, while reducing maintenance requirements.

Additional features on patio doors for increased comfort and security

Insects can be a nuisance, especially on warm summer nights. Insect screens on patio doors effectively keep bugs out. Whether fixed tension frames, movable hinged elements, or retractable roller blinds, investing in insect protection for your patio doors can greatly enhance your comfort.

Direct sunlight in the summer can cause overheating in your living space. Sunscreens mounted on the outside of the patio door provide relief and also prevent prying eyes. Manual or motor drive is up to your personal preference.

Anti-theft devices on patio doors help deter potential intruders. If an attempt is made to break in, security hardware equipped with mushroom-shaped locking pins offers superior protection compared to conventional locks. Laminated safety glass (VSG) also enhances security; its glass panes are bonded with a viscoelastic film, so even if the glass breaks, the layers remain intact, making forced entry more difficult.

Lockable handles further prevent unauthorized opening, even if the door frame is tampered with from the outside. Together, these features provide robust protection against unauthorized entry.

Grandsea’s high-quality patio doors offer excellent value for money. Please contact us—our knowledgeable and attentive customer service team will provide professional purchase advice and promptly deliver tailored design solutions and competitive quotations. Experience how easy and reliable it is to purchase the perfect patio door directly from the manufacturer.

Read More

Our Project

Global Cases

Faq's

Get Every Answers About patio doors

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.

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.

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.

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.

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.

sliding-doors(1)

our factory

Buy custom aluminum windows & doors in china

Premium Materials | Advanced Technology | International Standards

Buy windows & doors from china

Get a free quote from Grandsea

× Online Chat