New research from the Federation of Master Builders (FMB) reveals that one in five UK adults expects a complete bathroom refit to be finished within a week. Most professional builders won't even start tiling until week two.
In reality a standard bathroom renovation IE strip-out, tanking, fresh plumbing, electrical work, tile adhesive cure times, grouting, sealant, fitting and final snagging - takes a minimum of two to four weeks - or longer.
The findings highlight a broader issue about how homeowners are often planning around unrealistic timelines, which is where things start to go wrong. The FMB is calling on anyone planning a renovation to speak to a professional early, before budgets are set and expectations are locked in. FMB research shows £14.3bn has been lost to rogue traders over the last five years and in many cases, those situations began with a homeowner who didn't know what to expect or what to ask.
Homeowners can get trusted, realistic advice straight from FMB members at the Homebuilding & Renovating Show, taking place at the NEC Birmingham, 19–22 March 2026. Alternatively, they can find a vetted local builder via the FMB's Find a Builder service.
Brian Berry, CEO of the Federation of Master Builders, said: "Too many homeowners start a renovation with an unrealistic picture of how long it will take and what it will cost and that's where things start to go wrong. At the show, our members will be on hand to give free, one-to-one guidance on exactly the kind of questions people should be asking before work begins: how to build a realistic timeline and budget, what a proper quote or contract should include, and how to find the right builder for the job. FMB members are held to rigorous standards and independent inspections, so visitors can find out what that means in practice and why it matters. If you're planning a project, talking to the right people early is the single best thing you can do to protect yourself and your home."
The FMB's members will be offering free, one-to-one guidance at the FMB Stand and Advice Centre throughout the show. By speaking directly with FMB members, visitors gain insight into what professional, well-managed building work looks like and how to avoid the pitfalls that lead to disappointment.
Alexandra Powell, of Alexandra Powell Design & Construction, an FMB member, said: "We're proud to be representing the FMB at the show. It's a fantastic opportunity to help homeowners understand what makes a well-planned, beautifully delivered project possible and to reinforce why standards matter."
Harry Fanshawe at TW Build added: "This is my second year supporting the FMB at the Homebuilding & Renovating Show. It's brilliant to meet so many engaged homeowners, share insights, and help them move their plans forward with confidence."
Charles Okell, another FMB member expert, said: "It's like project speed dating focused, productive chats where you can quickly help people refine their ideas and expectations. It's one of the most rewarding events in the calendar."
If you want to attend, you can get a free ticket via this link.
