Plumbing and bathroom fittings online: showing finish, size and fit before the plumber visits

A tap that looked brushed gold on the website arrives looking yellow beside the designer's shower. Then the plumber says it will not fit the body in the wall. The owner believes the plumber. That veto decides the order, so write the page for the plumber first: connection sizes and rough-in on a downloadable spec sheet. The designer, who picks the finish, needs it shown under real light. The owner, who pays, needs a share link that reaches both before anyone pays.

Why the plumber's word decides the order

The plumber is in the house before anyone orders a single tap. The first fix, when the concealed bodies, the pipes and the WC outlet go into the wall and the floor, happens before tiling. After that, every visible fitting has to suit what is already buried.

So the plumber holds a veto your website never sees. A plumber who says "spares for that brand are hard to get here" or "this shower won't work on our tank pressure" will be believed over any product page. A page that hands over the details they would otherwise phone to ask turns the plumber from a critic into the person who forwards your link.

Concealed bodies and trims: the pairing that goes wrong

A concealed diverter or mixer comes in two parts. The body goes into the wall at first fix. The trim, the visible plate and handle, is fitted weeks or months later, after the tiles. In many ranges a trim fits only its own brand's body, and sometimes only one body model within that brand.

That gap in time is where online orders fail. The owner picks a trim on your site after the tiling, because that is when the bathroom finally looks like a bathroom. Nobody checks what is inside the wall.

The rule is simple. Never list a trim without the body model codes it fits, in the title or the first line. Sell body and trim as a pair where you can, and ship the body first. On every trim page, say it plainly: check the body in your wall before ordering this.

What the spec pack should hold

Each product gets one downloadable PDF and one share link that opens on a phone without a login. Keep to the items that cause returns.

• Connection sizes and thread type, and the rough-in for WCs and basins: the distance from the finished wall or floor to the centre of the outlet
• S-trap or P-trap, floor-mounted or wall-hung, and how deep the concealed body sits behind the finished tile
• The finish by the brand's own name, photographed in daylight and under warm light, with a dimensioned drawing that prints on A4
• What is in the box and what must be bought separately: angle valves, waste, connectors
• The warranty as the manufacturer states it, and who honours it
• A "send to my plumber" button that opens WhatsApp with the product name, code and spec link filled in

Build the sheet once per range, and every listing in that range draws on it.

Finishes do not match across brands

Chrome is close to chrome. Brushed gold, gunmetal, matt black and rose gold are not. Two brands' "brushed gold" can sit side by side and look like different metals. Designers tend to pick one brand for every visible fitting in a bathroom. Owners may buy a tap from one site and a shower from another to save a little.

Put one line on every coloured-finish listing: "Finishes vary between brands. For a matching bathroom, choose the shower, tap and accessories from the same range." Then link the range. The owner reads it before paying, which is the only time it is useful.

For example: a Kochi showroom and a house built from abroad

Take an invented case: a sanitaryware showroom in Kochi that sells online to families building homes while they work in the Gulf. An owner in Doha orders a matt black concealed diverter trim for a house in Thrissur, chosen by the designer from a mood board. Months earlier the site plumber had fixed a different brand's body, because the local dealer had it in stock. The trim arrives and does not fit. The tiles are already up. The only clean fix is to break them.

The showroom refunded the trim, paid the return freight and lost the rest of the bathroom order. Its fix sat in the listing, not at the returns desk. Every trim now names the body codes it fits. Body-and-trim pairs are sold as one item, with the body shipped first. And the order confirmation for any concealed product asks for the plumber's number, so the spec link reaches them before the first fix rather than after the tiles.

When this is not your page

If you supply builders by the lorry load, a spec pack per product is the wrong place to start; you are quoting lists, and quoting a builder's quantity list covers that. A spec pack also does not replace a plumber in an old bathroom where nobody knows which pipes run behind the tiles. Say so on the page, and offer a call before any order for a concealed product in a renovation.

Check the trims before anything else

Go through every concealed trim you list. Does each page name the body codes it fits? Does each matt, gold or gunmetal finish carry the line about other brands? Those two lines head off the returns that end in broken tiles. Writing the spec sheets is sales collateral development work, and fittings sit within our e-commerce sales and marketing group. To go through your catalogue together, tell us what you need.