Investing in UPVC windows and doors is a smart choice — but only if you're buying the right quality. With so many brands and options available, it’s easy to get overwhelmed. Not all UPVC profiles are created equal. Choosing low-quality products may lead to issues like discoloration, warping, or poor insulation over time.

Check for Multi-Chambered Design

High-quality UPVC profiles feature multiple internal chambers. These chambers enhance thermal insulation, increase strength, and provide better soundproofing. A good profile should have at least 3 to 5 chambers.

Tip: Ask your supplier to show you a cross-section of the profile.

Ensure UV Resistance

In tropical or sunny climates, exposure to UV rays can degrade low-grade UPVC. A quality profile will have UV-resistant additives that prevent discoloration and brittleness over time.

Look for UV-resistant certification or ask for a weathering test report.

Examine Profile Thickness

The outer wall thickness of the profile plays a crucial role in durability and strength. For residential use, a minimum outer wall thickness of 2.5mm is recommended. Anything thinner might be structurally weak.

Look for Lead-Free Composition

Top manufacturers like FenePro offer lead-free UPVC profiles, which are safer for health and the environment. Lead-free profiles are also recyclable and more sustainable.

Insist on eco-friendly options for long-term safety and compliance.

Check for Reputed Certifications

Reputable UPVC profiles meet international or national standards such as:

  • ISO 9001 (Quality Management)
  • RoHS Compliance (Restriction of Hazardous Substances)
  • Green Building Certifications

These certifications ensure that the product has passed stringent quality tests.

Test for Smooth Surface Finish

High-quality UPVC profiles have a smooth, glossy, and uniform surface finish. A rough, chalky, or inconsistent surface may indicate poor raw materials or manufacturing defects.

Ask About Reinforcement Options

Steel reinforcements inside the UPVC frame increase strength and stability, especially for larger windows and doors. Make sure the profiles can accommodate galvanized steel reinforcements.

Good profiles have reinforced chambers designed for structural performance.