The doors and windows of your home do far more than simply open and close. They control how much light enters, how much heat is gained or lost, how much outside noise penetrates, and how secure your home is. In West Bengal — where the climate brings intense summer heat, heavy monsoon rains, and high humidity — the quality of your doors and windows has a direct impact on your comfort, your energy bills, and the long-term condition of your home.

UPVC — Unplasticised Polyvinyl Chloride — is the material of choice for modern doors and windows, and at Kolkata Kraft Interior, we supply and install a comprehensive range of UPVC systems that deliver exceptional performance across every dimension that matters. Unlike traditional timber, UPVC does not warp, rot, swell, or shrink with changes in temperature and humidity. Unlike aluminium, it does not conduct heat — making it a significantly better thermal insulator.

The thermal insulation performance of UPVC windows is one of their most significant advantages. UPVC frames combined with double-glazed glass units create a thermal barrier that dramatically reduces heat transfer — keeping homes cooler in summer, reducing the load on air conditioning systems, and lowering electricity bills meaningfully over time.