Buying Your Own Bathroom: A Checklist

Fit-only installation puts you in charge of sourcing, which is where most of the cost saving comes from — but it only works smoothly if the right things are ordered in the right order, against measurements that have actually been checked on site. This checklist is the sequence we walk clients through at survey stage, before a single item goes in a basket.

Common compatibility issues worth checking

A surprising number of returns and delays come down to compatibility rather than damage or taste. A basin chosen for its shape may need a specific waste position that doesn't match a wall-hung frame's outlet. A large format porcelain slab may need a levelling system the tile's edge profile doesn't support. A digital shower may need a flow rate your home's water system can't deliver without a pump. None of these are reasons to avoid a product — they're reasons to confirm compatibility with your installer before paying for it.

We go through the full specification with you ahead of ordering precisely to catch this kind of mismatch early, when it costs nothing to change the plan, rather than at second fix, when it costs a delivery delay and sometimes a restocking fee.

A simple way to keep track of your order

Most clients find a single running spreadsheet or document easier to manage than scattered order confirmation emails, especially once three or four suppliers are involved. Against each item, worth noting: the supplier, the order date, the expected delivery window, the model and finish code, whether fixing kits and wastes are included, and a column to tick off once it's been checked on arrival. It sounds like overkill for a single bathroom until the week deliveries actually start landing — a basin from one supplier, a bath from another, tiles from a third, often within days of each other.

We're happy to work from your list at survey and flag anything that looks like it might not match the room — a tap-hole configuration that doesn't suit the basin you've picked, a flush plate finish that won't match the brassware, or a carrier frame depth that needs more stud wall than the current partition allows. Catching a mismatch on paper, before an order is placed, costs nothing. Catching the same mismatch once the item is on site costs a delay.

What we flag most often at the specification stage

Returns, restocking fees and change of mind

Bespoke or made-to-order items — a cut-to-size vanity unit, a specific stone slab, a custom shower screen — are rarely returnable once ordered, since they've been produced specifically against your measurements or finish choice, so these are the items most worth being completely certain about before confirming. Standard stocked products usually carry a more conventional returns policy, but often with a restocking fee once the item has left the warehouse, and original packaging is frequently a condition of any return being accepted at all — another reason to keep boxes intact until an item is confirmed correct and ready to fit.

It's worth reading a retailer's returns policy before ordering rather than after a change of mind, particularly for anything with a long lead time, since a mid-order change of heart on a bespoke item can be far more costly than simply taking a little longer to be sure of the specification in the first place.

A note on showroom visits versus buying online

Seeing sanitaryware, tiles and brassware in person before ordering — particularly finishes like brushed brass or matt black, which photograph inconsistently between retailers and screens — remains worth the time where a showroom is practical to visit, since colour and texture are genuinely hard to judge accurately from a product listing alone. Where a showroom visit isn't practical, ordering a sample tile or a small finish swatch before committing to a full order is the next best option, and most reputable suppliers offer this specifically because they'd rather you were certain before a larger order is placed than returning it afterwards.

Budgeting for what isn't always obvious upfront

Beyond the headline items — suite, tiles, brassware, furniture — a handful of smaller purchases are easy to forget when putting a first budget together, and all of them have a habit of surfacing late if they're not planned for from the start. Fixing kits sold separately from sanitaryware, silicone and grout colour-matched to the chosen tile rather than a generic white, extractor fan ducting and vent covers, and extra tile adhesive if the room's actual area turns out larger once measured than first assumed from a rough sketch — none of these cost a great deal individually, but added together they can move a budget by a few hundred pounds if they're discovered at the final order rather than the first one.

We flag this kind of detail at survey specifically so it's accounted for in your initial spend plan, not so it feels like a surprise add-on once the main items have already been ordered and paid for.

Ordering for an en-suite or cloakroom versus a full family bathroom

A small en-suite or cloakroom generally has fewer items to coordinate and a shorter lead-time critical path, since there's often no bath, no large shower tray, and a smaller tiled area — which makes it a reasonable first project if you haven't bought a bathroom before and want to get a feel for the process before tackling a larger family bathroom. A full family bathroom, by contrast, usually has more items with genuinely different lead times running in parallel — a freestanding bath, a separate shower enclosure, a larger floor area of tile, sometimes underfloor heating — so the sequencing in this checklist matters more, not less, the bigger and more complex the room.

Sources and standards

Waste pipe sizing and sanitary pipework referenced here follow Building Regulations Part H and BS 6465 (sanitary installations). Electrical supply for shower toilets and digital showers follows Building Regulations Part P. Product-specific fixing and compatibility requirements follow manufacturer installation guidance current at the time of writing.

Frequently asked questions