Reliable security doors Manufacturers from china
As a leading manufacturer of doors and windows, Grandsea knows that high-quality steel security doors offer greater resistance to break-ins. We offer a wide range of modern designed metal security doors to ensure that the entrance to your house looks impressive. With features such as weather resistance, thermal insulation and excellent burglar protection, we have the perfect security door for your home.
Super anti-theft performance
High-strength materials and advanced lock systems are used to effectively prevent illegal intrusion.
Beautiful customization
Provide a variety of design and color options, which are both safe and can enhance the appearance of the house.
Excellent sound insulation and heat insulation
Multi-layer structure design effectively blocks external noise and temperature changes.
Fire and impact resistance
Passing strict fire and impact tests to ensure safety in extreme situations.
Intelligent options
Advanced intelligent security systems can be integrated to provide all-round protection.
Long-term durability
Anti-corrosion materials and processes are used to ensure stable performance in long-term use.
security doors design ideas
Steel-aluminum composite anti-theft security door
- 3mm thick A3 steel plate on the outside, aluminum alloy frame on the inside
- standard height 2.2m, width 1.0m (customizable)
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Lock system :
Main lock: C-level smart lock core, anti-drilling and anti-pry
Secondary lock: 4 stainless steel anti-theft bolts - National 3C certification Class A (highest level)
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Load-bearing capacity:
up to 80kg for a single sash -
Scope of application:
high-end residences, hotels, office buildings
This steel-aluminum composite anti-theft door is our star product, integrating safety, beauty and practicality. The 3mm thick A3 steel plate provides extremely high anti-theft performance, while the inner aluminum alloy frame ensures the lightness and stability of the door body. The C-level smart lock core and multiple anti-theft bolt system build a solid line of defense for your home.
High-strength stainless steel security door
- Anti-pry edge design
- high-strength stainless steel, filled with high-density polyurethane foam
- height 2.0m-2.4m, width 0.8m-1.2m (customizable)
- Multi-point locking system, up to 5 locking points
- U value as low as 0.8 W/(m²·K)
- can withstand 900J impact force
This high-strength stainless steel security door is a perfect combination of lightweight and high security. It not only provides excellent anti-theft performance, but also has excellent weather resistance and thermal insulation. The multi-point locking system and anti-pry edge design further enhance the security of the door.
Customizable security doors
Whether it is made of rustic wood, solid steel or stylish aluminum alloy - Grandsea Windows and Doors can help you create the most perfect security door!
We take not only the security of our doors very seriously, but also the diverse design options for our security doors. Contact us now and share with us your requirements for residential security doors or security apartment doors in different colors and finishes. Our security doors are custom designed and made according to your wishes. For example, the entrance door can also be galvanized and create a cozy impression in the basement. Similarly, our front doors also create a cozy impression in the apartment. You can decide which material they are made of according to your needs.
The importance of security door locks
In our product catalog, you will find security doors that will keep your private and commercial spaces secure and effective in a sustainable manner. Our security doors and door locks feature high-quality features and are ideal for use in security-sensitive building areas. As a first-class door and window manufacturer, we have long proven ourselves with first-class products and accessories.
To ensure optimal protection against theft, security doors are equipped with different locks. The front door can be expanded to include hook locks, roller latches and deadbolt locks, thus increasing security. The first and foremost features of hook locks and tri-fold locks are optimal sealing and perfect security. On the other hand, roller latches stand out for their excellent sealing, while 5-point locks offer maximum protection against theft. We are happy to advise you on security door locks and are always here to help!
Security doors with different resistance levels
Each of our security doors undergoes a careful suitability and resistance test before it leaves the factory. If you need a video or on-site inspection, we would be happy to invite you to supervise this test. At Grandsea Doors and Windows, you will find security doors with different resistance levels. There are metal security doors that provide enough basic protection against opportunistic criminals (for example, trying to break in purely using force). On the other hand, higher-level steel security doors can withstand the use of rough tools such as hammers, chisels and cordless drills. Especially in the industrial field, doors with higher protection levels are also installed. Security doors are fire-resistant in addition to their resistance level. You can contact us for more information about the different types of security doors.
Door and window manufacturing experts
With our rich experience and expertise in door and window manufacturing, we have the skills needed to meet every option you have for the perfect door and window. We look forward to your door and window purchase needs and make your dream of a new front door or new windows come true. You are welcome to contact us and learn more about front door security, security window systems or stylish front doors. We are happy to advise you on your new window and door ideas at any time and provide you with a quote promptly.
We guarantee that you will spend more than you thought possible from a quality window and door manufacturer. At Grandsea, we put our years of experience and craftsmanship at your service, including advice on measuring and installation. So don’t hesitate to contact our experts today to find out more!
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Faq's
Get Every Answers About security doors
A security door is a door specially designed to enhance entrance security. It is usually made of steel or other strong materials and equipped with advanced locking systems and anti-pry designs to effectively prevent illegal intrusion.
The types of security doors provided by Grandsea include: steel doors, stainless steel mesh doors, aluminum alloy doors, composite doors, etc. Among them, steel doors are generally considered the safest choice.
A truly safe security door should comply with relevant safety standards. Our security doors meet many international standards, such as Australia’s AS5039-2023 standard. In addition, the quality of key components such as door materials, locks, hinges, etc. is also higher than that of other peer manufacturers.
Security doors vary widely in price, ranging from a few hundred to several thousand dollars. The price depends on factors such as the material, size, and security level of the door. Generally, steel doors and stainless steel mesh doors are more expensive.
Security doors also have the following advantages:
- Improves ventilation and allows fresh air to enter the room
- Saves air conditioning costs
- Prevents insects
- Increases privacy
- Improves the appearance of the house
Most of Grandsea’s modern security doors are designed to be low-maintenance. We recommend that you still check the locks, hinges and other parts regularly, and clean and oil them in time to maintain the long-term and stable use of the security door.
Door design and custom configuration
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