1. Choose Reputable Brands
Reputable brands usually offer better quality and after-sales service, ensuring user rights.
You can check brand qualifications, certifications, and customer reviews to select a reputable brand.
2. Focus on Performance Indicators
When selecting doors and windows, pay attention to water tightness, air tightness, wind pressure resistance, thermal insulation, and sound insulation to choose products that meet your needs.
Request testing reports from the seller to understand the product's performance.
3. Examine Material Quality
Carefully inspect the quality of profiles, glass, and hardware components to choose durable materials.
Assess material quality through observation and touch.
4. Understand Processing Techniques
Learn about the processing techniques of the doors and windows to select products with refined craftsmanship and reliable quality.
Visit the manufacturer's workshop to understand the production process and quality control measures.
5. Consider After-Sales Service
Choose brands with good after-sales service to ensure timely repairs and maintenance during use.
Research the brand’s after-sales policies and repair response times.