A Guide for Selecting Windows and Doors: 5 Key Points You Must Know Before Shopping as a Beginner

Doors and windows are household durable goods. Once installed, the cost of replacement is high and the process is difficult. Many beginners are easily deceived by merchants and keep falling into traps. By mastering the following 5 key points, you can avoid 90% of the pitfalls and select cost-effective and highly practical doors and windows.

Key Point 1: Check the thickness of the profiles and the brand. Reject inferior profiles. The thickness of aluminum alloy/interlocking aluminum profiles directly affects the strength and durability of the doors and windows. According to national standards, the thickness of balcony door profiles should be no less than 1.4mm, and that of bedroom and living room door profiles should be no less than 1.2mm. When purchasing, ask the merchant to show the profile thickness test report to avoid buying thin materials or recycled materials. Also, prefer to choose well-known brands of profiles, as they have better quality and more complete after-sales service.

Key Point 2: Check the hardware accessories. Details determine the service life. Hardware accessories are the "heart" of the doors and windows, including hinges, handles, locks, pulleys, etc., which directly affect the smoothness of opening and closing, sealing performance, and safety of the doors and windows. High-quality hardware accessories (such as imported Goodbo and Jianlang) have hard materials, smooth surfaces, and are not prone to rust, and have a long service life; inferior hardware is prone to rust, jamming, and even breaking, causing the doors and windows to be unusable. When purchasing, test the opening and closing feel by hand, check the brand and workmanship of the hardware, and do not be deceived by merchants' use of "imported" and "high-quality" rhetoric.

Key Point 3: Check the sealing performance, which is related to insulation and sound insulation. The sealing performance of doors and windows mainly depends on the sealing rubber strips and sealing structures. High-quality sealing rubber strips (such as ethylene propylene diene monomer rubber strips) have good elasticity, corrosion resistance, and are not prone to aging, and can effectively prevent rain, dust, and noise from entering; inferior rubber strips are prone to hardening, cracking, and poor sealing effect. When purchasing, close the doors and windows and check if the gaps are uniform. Press the rubber strip with your hand to feel its elasticity, and also ask the merchant about the design of the sealing structure (such as multiple seals).

Key Point 4: Do not blindly pursue "large glass", balance safety and practicality. Large glass indeed has a high appearance level and good lighting, but attention should be paid to the thickness and load-bearing capacity of the glass. The larger the glass, the thicker the thickness (usually over 12mm requires tempering treatment), otherwise it is prone to breakage; at the same time, the weight of the large glass is relatively heavy, which requires higher requirements for the profiles and hardware, and the cost will also increase significantly. It is recommended to choose the appropriate glass size according to the space size. For floor windows and large balconies, a "glass + partition bar" design can be adopted, which is both safe and beautiful.

Key Point 5: Check the installation process, three parts of the product and seven parts of installation. Even the best doors and windows will have problems such as water leakage, air leakage, and deformation if the installation is not done properly. When purchasing, ask the merchant about the professional status of the installation team, the standardization of the installation process (such as the steps of applying foam glue and applying sealing glue), and require the merchant to provide installation warranty to avoid problems that cannot be resolved later due to lack of rights and interests protection.