Building firms have seen their professional indemnity (PI) insurance bill slashed by up to a fifth over the past year, research has revealed. Since the Grenfell Tower tragedy nine years ago, many contractors have found PI insurance difficult to obtain, or watched their premiums soar. Responding to a 2021 survey by the Construction Leadership Council, almost a third of contractors, consultants and specialists said they had lost out on jobs because they were unable to obtain adequate PI insurance. But Gallagher’s Construction Insurance Mid-year Update report, published today (3 August), found that the situation had continued to ease. Looking more broadly at the construction insurance market, Gallagher noted that many insurers had reported better results for 2025, raising hopes of a “selective growth appetite” this year.