AI bathroom visualization in a renovation company’s proposal: 5 steps

A bathroom client doesn’t buy tiles, but a picture in their head: how it will look in their home. The clearer that picture before the contract is signed, the less hesitation, the fewer changes during the work and the fewer surprises at handover. An AI visualization can provide it in a dozen or so minutes, on a photo of the client’s own room.

In this guide I show how to include such visualizations in the proposal of a renovation company, a bathroom showroom or a terrace and facade contractor. You get a 5-step process, the limits you must not cross, and a template for the note under the image.

Three ways to let the client see the result before deciding

An AI visualization is not the only way. It’s worth knowing all three and choosing by job:

In practice a layered approach works. At the first meeting you show a quick AI visualization so the client can react (“yes, that’s it” or “no, lighter”). Once the direction is chosen, only then do you order a precise design or use the manufacturer’s program.

Limits: what an AI visualization is and what it is not

This is the most important section, because it decides whether a visualization helps or harms.

• It is an indicative image, not a design. No dimensions, no layout of the plumbing, no floor slopes, no tile cutting plan. Base your quote and the work on a measurement.
• The product in the image must be in your range. If AI draws a tile you can’t order, the client will pay for something they won’t get. That is misleading.
• AI distorts details. Grout lines, tile proportions, mirror height or window position can change. Always compare the image with the input photo.
• Colors on a screen are not colors on a wall. For a facade, always show a color swatch or a sample on the wall.

It’s worth telling the client this outright when showing the image, for example: “This is a visualization to see the direction. We confirm exact dimensions and materials after measuring.”

The 5-step process: from the client’s photo to a visualization in the proposal

Step 1: ask for photos and consent

Ask the client for 2–3 photos: a view from the entrance, a view of the wall with the window and, if needed, of the floor. For a terrace or facade, you need a general view from several sides. Ask for consent to use the photos to prepare the visualization, preferably in writing or in a message, and say that the photos will go into an AI tool. A photo of a house linked to a specific client may constitute their personal data, so also remember the information obligation under Art. 13 GDPR (for example in the proposal or in the privacy policy).

A ready message to copy:

Hello, to prepare the visualization, I’d like to ask you for 2–3 photos of the bathroom (from the door, from the window side and of the floor). I will use them only to prepare an indicative visualization in an AI tool, only for you, and I will not publish them anywhere without separate consent. Do you consent? Please don’t photograph people or documents.

Step 2: choose only materials from your range

Before you open the image generator, prepare a list of 2–3 specific variants from your range: a tile collection, grout color, fixtures, decking board or plaster. Write down the codes and names. That way you know what is in the image and can price it afterwards.

Step 3: prepare the prompt and generate images

In an AI tool that lets you edit photos, upload the client’s photo and describe the change. Be specific and keep the room layout:

Keep the room layout, the window and the door unchanged.
Change the wall tiles to light gray, matte, 60x120 cm format,
grout in the tile color. Floor: darker gray porcelain tile.
Realistic daylight, no extra furniture or decorations.

Generate 2–3 variants and choose the one that most faithfully reproduces the layout from the photo. Reject images where the shape of the room has changed.

Step 4: check the image against a checklist

Before sending it to the client, answer these questions:

1. Do the room layout, the window and the door match the photo?
2. Can I order and install every material in the image?
3. Are the tile proportions and heights realistic?
4. Are there any odd elements in the image (extra shelves, distorted fixtures)?
5. Do I have the client’s consent to use the photo?

If you answer “no” to any of them, fix the prompt and generate the image again.

Step 5: add the note and include the image in the proposal

Place the visualization in the proposal next to the materials list and the quote. Add a note under the image (template below) and write down which codes and collections the image was made from. That way the proposal, the visualization and the materials order all say the same thing.

Terrace and facade: what to watch out for

With a terrace, AI easily shows a beautiful pattern of decking or tile but leaves out the slope, the installation system and the expansion joints. So treat the image as a preview of color and pattern, and calculate material from a measurement. If you want to go further, a 3D preview with a tile texture is possible, as in my project Tarasy Giżycko, where AI selects variants only from the tiles the company sells.

With a facade, the biggest risk is color. On a screen, in different light, plaster looks different than on the wall. Show the client a color swatch and, if possible, make a test patch on the wall. An AI image is for judging the combination of colors (facade, roof, window frames), not for choosing the exact shade.

Labeling AI images and the AI Act

Art. 50 of the AI Act (Regulation (EU) 2024/1689) imposes transparency obligations on providers of AI tools and on deployers of AI, which includes companies that use image generators professionally. For a renovation company the main provision is Art. 50(4): if a company uses AI to create or alter an image that is a deepfake, it must clearly disclose that the image was generated or manipulated by AI, at the latest when the recipient first sees it. The obligations in Art. 50 apply from 2 August 2026. The Digital Omnibus (Regulation (EU) 2026/1744, in force since 27 July 2026) did not postpone this date. It only gave providers of generative tools that were on the market before 2 August 2026 until 2 December 2026 to mark generated content in a machine-readable format (Art. 50(2)). This is an obligation of the toolmakers, not of a company that uses them.

It is not obvious whether a realistic visualization of a client’s bathroom, terrace or facade is a “deepfake” within the meaning of the provision. The definition (Art. 3(60)) covers images that resemble existing persons, objects, places, entities or events and that a recipient could falsely take to be authentic or truthful. In its guidelines on Art. 50 of 20 July 2026, the European Commission recommends assessing each case separately: similarity, context and the recipient’s expectations matter. A photo of a client’s house after an AI edit may fall under the definition, especially if it ends up on a website or on social media. The exception for evidently artistic or fictional works will probably not cover proposal materials, because the Commission reads it narrowly. So the simplest rule is: label every AI visualization, regardless of whether the law requires it. It costs nothing and builds trust. A note will not fix dishonest content, however: an image with a product the client won’t get may be considered a misleading market practice (Art. 5 of the Act on Counteracting Unfair Market Practices, ustawa o przeciwdziałaniu nieuczciwym praktykom rynkowym), even if it is captioned as an AI visualization.

This is not legal advice. The legal position is as of 20 October 2026; if in doubt, consult a lawyer about the specific case.

Template for the note under the image

Copy and adapt:

Indicative visualization generated with the help of AI from a photo of the client’s room. Colors, patterns and proportions may differ from the final result. Materials shown in the image: [collection name, code]. Dimensions and execution details are agreed after measurement.

Place the note directly next to the image, so that it is visible immediately, not in the footer of the proposal or in the terms and conditions: Art. 50(5) requires information that is clear and distinct at the latest at the recipient’s first interaction with the content. Publishing on a website or on social media requires the client’s separate consent, because the message from step 1 covers only preparing the visualization. If you have that consent, add one sentence saying that the source photo comes from the client and was used with their consent.

What you must not do

• Show products outside your range as the result the client will get.
• Upload the client’s photos to a tool without their consent.
• Publish visualizations as photos of completed projects. These are two different things. Show a completed project only with real photos taken after the work is finished.
• Promise that the result will be identical to the image.
• Replace measurement and the construction design with a visualization.

If you want to sort out how to use AI in your company’s images and videos at all, see my guides on the company mascot in AI videos and on the logo in ChatGPT. Both show the workflow with AI tools and the limits of rights to generated materials.

How to include visualizations in the proposal

The visualization alone is one thing, but it is the whole process that sells. A fixed scheme works well: the client’s photos, two visualization variants, a materials list with prices and the completion date in one document. For the descriptions of variants and the proposal materials you can use texts and graphics, so that the proposal is consistent and clear.

If you want to introduce AI more deeply, for example to prepare a proposal from the client’s photo, I do it in the AI implementation in your business service. That is how the AI Advisor on the Tarasy Giżycko website works: the client uploads photos, and the system suggests variants only from the tiles in the company’s range.

Summary

An AI bathroom visualization helps the client make a decision, but only when it is honest: indicative, based on products from your range, made with the client’s consent and described with a note. Start with one job and the 5-step process, then repeat it.

If you want to build such a process in your company or connect it to your website and inquiry form, write to me. I will help you choose tools and prepare the proposal, and new clients get 20% off their first job.