Dosie Foxie

A plumber's logo: the van, the uniform and the emergency call

Plumbing is an emergency business with a trust problem. The customer is usually not comparing logos; they are deciding whether to let a stranger into their home. The mark has to look competent, local and contactable, in that order.

Plumbing is an emergency business with a trust problem. The customer is usually not comparing logos; they are deciding whether to let a stranger into their home. The mark has to look competent, local and contactable, in that order.

It also has to work on three surfaces that pull in different directions: a van seen at distance, a uniform seen at arm's length, and a phone screen seen in a hurry.

Where the mark gets used

SurfaceThe constraint that matters
Van sideReadable at 30–50 ft; one colour, high contrast
Uniform chestStitches at 3 in; no fine detail or small type
Phone screenA square icon that works at 48 px and as a favicon
Invoices and quotesA mono version that photocopies cleanly

What works, and what is stock

The three files that do the work

  1. A horizontal lockup for the van and the website header, with the name dominant.
  2. A stacked lockup for the uniform and the square avatar.
  3. A one-colour cut file for the van and the window, because every extra colour is a separate vinyl layer.

The emergency number should not be set in the same weight as a tagline. It is an instruction, not a description.

Worked example: a two-van plumber

The brief

A two-van plumber has a shield with a wrench, a droplet and the name in a script face. It looks fine on the quote, and unreadable on the van.

The script name at 40 mm becomes a tangle at 50 feet, and the shield's inner line is too thin to cut. The production version keeps the shield silhouette, reduces the wrench and droplet to one solid cut-out, sets the name in a bold sans at 160 mm, and gives the phone number its own line.

The script version is not deleted. It stays on the invoice and the website, where it is read at close range. The van gets the version the van can actually show.

What our pack ships

The Production Pack gives the horizontal, stacked and icon lockups, a mono version, a reverse version, a one-ink SVG your sign shop converts for the van, and a favicon set. That covers the uniform, the invoice and the phone without anyone redrawing the mark.

Questions

Should a plumber's logo include a phone number?

For a van and a window, yes, as a separate line designed with the lockup. For the core mark, no: a number dates and changes. Keep the number in the vehicle layout, not in the logo itself.

Is blue mandatory for plumbing?

No, but it is the category default and it reads as water and trust. If you use it, make the contrast and the type do the differentiating work. A strong non-blue palette can stand out on a street of blue vans.

What is the most important file for a plumber?

A one-colour cut file that reads at distance. It goes on the van, the window and the uniform, and it is the version customers actually see before they call.

If the file is the problem, the pack is the fix.

The Production Pack is $149, one time: true vector masters, six lockups, a print PDF and EPS, one ink per file and unlimited parametric edits.

See the production pack Audit my current file

Free tools: vector check · 12-file audit · 16px legibility · CMYK shift · stitch estimate

For agents

The same pack is available to a machine: a structured brief, a JSON manifest, x402 in USDC on Base, and an MCP tool contract.

Agent access · OpenAPI · llms.txt · MCP

Agent API: the contract, the free endpoints and the paid x402 checkout are live. USDC on Base, no account, no API key.

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