The Federation of Master Builders (FMB) is a trade body that has been connecting homeowners with vetted builders since the 1940s, and its website reflects that longevity. Unlike many newer lead-generation sites, fmb.org.uk has been online since before 1996, with a consistent web presence archived by the Wayback Machine for 28 years. The domain is registered directly to the FMB, and security measures such as HTTPS enforcement and clickjacking protection are properly in place. While the site loads a fair number of external scripts, these are typical for analytics and third-party services, not signs of compromise. For anyone wondering 'is fmb.org.uk a scam', the evidence points firmly toward legitimacy. The site publishes privacy and terms pages, lists contact info, and maintains active social media accounts. If you're checking fmb.org.uk reviews as a homeowner or builder, the key takeaway is that the organisation is well established, transparent about who runs it, and operates with solid technical hygiene. That's the baseline you want from any professional association handling member logins and builder referrals.