How much does B&Q charge to fit a bathroom?
B&Q's installation service typically charges £2,500 to £5,000+ for fitting, on top of the products, with the work carried out by approved subcontractors. It suits straightforward swaps; for layout changes, older-house complications or wetrooms, an independent fitter usually prices and performs better.
The big-shed model — B&Q, Wickes, Wren — bundles a survey, products and an approved installer into one contract. The convenience is real: one point of responsibility and consumer-credit protections. The trade-offs are also real: the fitting price is set to cover the retailer's margin and the subcontractor's, the installer is whoever is allocated rather than chosen, and anything non-standard (moving a stack in a Victorian back addition, tanking a timber floor) tends to attract either a 'not included' or a chunky variation.
Where the model struggles most is exactly where south London housing lives: pre-war houses with quirks. A subcontracted fitter on a fixed allocation has every incentive to keep the job inside the survey's assumptions; an independent quotes your actual house after standing in it.
Price-wise, by the time products and fitting are totalled, the big-shed route usually lands at or above a good independent's price for the same specification. Get both numbers on the same spec — including who handles certification, making-good and disposal — and compare totals rather than headlines.
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