Search "bathroom supply and fit" and you'll find two industries wearing one name: firms that supply everything and fit it, and fitters who install whatever arrives in boxes from wherever you bought them. Both are legitimate. They just distribute cost, risk and responsibility completely differently — and most people only discover the difference when something goes wrong.
The Two Routes, Spelled Out
Supply and fit: one company designs the room, supplies every item, installs it, and owns the result. One quote, one warranty chain, one phone number. This is how we work — the reasons are on our fitting team page.
Self-supply (labour-only fit): you buy the suite, panels, flooring and brassware from retailers, then hire a fitter for labour. You control every product choice; you also own every gap between them.
The Money, Honestly
Self-supply's headline appeal is dodging the supplier's margin. The reality is thinner:
- Trade vs retail: a supply-and-fit firm buys at trade prices you can't access — often 20–40% under the retail price you'd pay for the same item. Much of the "margin" you're avoiding is a discount you're forfeiting.
- The compatibility tax: the wrong-size trap, the waste kit the tray didn't include, the second delivery charge — self-supply projects bleed £30 fixes.
- Idle labour: if a fitter on day-rate stands down because a part is missing, that day still gets paid — by you. One short delivery can cost more than the item's whole saving.
Self-supply genuinely wins when you have access to trade prices, time to chase suppliers, and a fitter who'll flex around deliveries. That's a real profile — it's just rarer than the spreadsheet suggests.
Who Carries the Risk
The question that decides this comparison: when the shower tray arrives cracked, whose problem is it? Supply and fit: ours — you never hear about it. Self-supply: yours — the retailer disputes whether it left the warehouse cracked, the fitter can't proceed, and you're refereeing from your kitchen. Multiply by every item in a bathroom and you've described the difference between buying a product and running a project.
The Delay Mechanics
A bathroom install is a sequence — strip-out, first fix, walls and floor, second fix — where each stage needs its materials on site the day it starts (the full sequence is in how it works). Supply-and-fit firms hold everything at the yard before day one; that's why our fits run 5–7 days. Self-supply projects start when 90% of items have arrived — and stall on the missing 10%.
The Warranty Maze
Self-supply splits every failure into a jurisdiction question: leaking valve — faulty part (retailer) or bad fitting (fitter)? Each points at the other; the customer adjudicates. Supply and fit collapses the maze: parts and workmanship sit with one firm, so the argument can't exist. Ours is in writing — the 12-month workmanship guarantee plus each manufacturer's warranty, all handled through one phone number.
Which Route Suits Whom
- Supply and fit: you want a fixed price, a fixed timeline, and one accountable company — the right default for most households
- Self-supply: you have trade access or serious deal-hunting patience, a flexible fitter, and the appetite to project-manage (our DIY project management guide shows what that involves)
What we'd warn anyone off: the hybrid where you buy the "fun" items and the fitter supplies the rest. It combines both routes' failure modes with neither's protections.
Related reading: Project-managing your own bathroom, How to compare bathroom quotes, Our fitting team, How the process works.
Not sure which way to go in your own bathroom? Call 01236 801802 — a five-minute conversation usually settles it.