Glazing services and glass fitting services at construction sites are treated as works contract or building completion services under GST. Earlier, different ways of billing glass material and glazing labour or combining this work with main construction sometimes produced different effective tax outcomes for similar projects, which made costing and tax planning difficult.
After the September 2025 rationalisation, most glazing services under SAC 995471 generally fall in the 18 percent slab with input tax credit. This standard rate applies where glass installation is supplied as part of a contract or sub contract, unless a specific notification grants concessional treatment for a particular public or social sector scheme.
The table below shows the latest standard GST rate for SAC code 995471.