Hiring the right builder can make or break your entire renovation project. In a city like London where construction demand is high and projects are complex, choosing the wrong contractor can lead to delays, budget overruns, poor workmanship, and long-term structural issues. Unfortunately, many homeowners only realise they’ve hired a bad builder when it’s already too late. So, how do you protect yourself? In this guide, we’ll break down how to avoid bad builders in London, hig