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Stevig Kitwerk does not track you or measure your behaviour. If you allow more, we may measure how the site is used and tailor adverts. You can change or withdraw your choice at any time via Cookies at the bottom of every page.

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Sealant applicator smooths the fresh sealant joint with a small wooden spatula in the corner between a tiled wall and a plastered wall.

Privacy

Privacy statement

Short and without the legal fog: this is what we keep about you, why, and for how long. We do not sell your data and we will not send you a newsletter.

  • Since 1959

    Experience and craftsmanship from Utrecht

  • Clear communication

    Short lines, clear agreements

  • 100% satisfaction

    We only leave once you are satisfied

  • Lasting quality

    Top-quality materials for a long-lasting result

Who

Who processes your data

Stevig Kitwerk, a trading name of Stevig Vastgoedonderhoud, Parelmoervlinder 26 in Utrecht, Dutch Chamber of Commerce number 77717244. You can reach us on 085 - 06 07 222 and at info@stevigkitwerk.nl.

What

Which data and why

If you request a quotation

We process your name, telephone number, e-mail address, your company name if you give one and the location of the work, plus whatever you write in the description yourself and the files you send with it. We need that to be able to handle your request and give you a price. Legal basis: performance of a contract or steps taken before entering into one.

If you call, e-mail or send a WhatsApp message

Then we process what you tell us and your telephone number or e-mail address, so that we can answer your question.

If you use the chat

The chat on this site is an AI assistant, not a member of staff; it says so in its first sentence. It asks what needs sealing, where, roughly when, and your name, telephone number and, if you give them, your e-mail address and company name. What you type is read by a language model from Microsoft (Azure OpenAI) running in Sweden, and the conversation is kept in a Microsoft database in Sweden, so that we can read it and a colleague can take over. The model is not trained on what you type. Legal basis: steps taken before entering into a contract. Would you rather not use an AI? Type 'medewerker', the Dutch word for a member of staff, and a colleague takes over the conversation. You can also call 085 - 06 07 222.

If you message us on WhatsApp

On WhatsApp the same AI assistant answers as in the chat on this site, with the same questions; it says so in its first message. It chats in Dutch. We receive your WhatsApp number and the name from your WhatsApp profile. We do not simply take that name over: the assistant first asks whether it is also your name. Your messages and photos reach us through WhatsApp and through Twilio, and are then read and kept in the same way as a conversation in the chat. Legal basis: steps taken before entering into a contract. Would you rather not use an AI? Type 'medewerker', or call 085 - 06 07 222.

If we carry out a job for you

Then the address of the work, photos and videos of the joints we have done and the invoicing details are added. We make those images for the handover file and so that we can judge what happened if a complaint comes in later.

Keeping

How long we keep it

Sharing

Who we share it with

We do not sell your data and we do not pass it on to lead platforms. We only share it where that is needed to carry out your job or because we have to: with our bookkeeper, with the self-employed tradespeople who carry out the work, and with the parties who provide our e-mail or storage.

Our e-mail and file storage run through TransIP B.V., a Dutch company based in Leiden, with storage inside the EU.

The chat on this site uses a language model and a database from Microsoft (Azure), both in Sweden, inside the EU. The website itself runs at Vercel, with the server functions in Frankfurt.

WhatsApp messages pass through two parties. WhatsApp Ireland Limited in Ireland provides WhatsApp itself, and passes data on to WhatsApp LLC and Meta Platforms, Inc. in the United States. Twilio Ireland Limited, 70 Sir John Rogerson's Quay, Dublin 2, Ireland, connects WhatsApp to our site, with Twilio Inc. in the United States as sub-processor. Your data may be processed outside the European Union in that process, on the basis of the adequacy decision for the United States and otherwise on the basis of the European Commission's standard contractual clauses.

Rights

What you may do

You may ask which data we hold about you, have it corrected or deleted, and object to the processing. To do so, e-mail info@stevigkitwerk.nl. You will hear from us within one working day and we will deal with it within a month.

If you and we cannot resolve it, you can lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens).

Cookies

Cookies and measuring

This website measures nothing unless you say yes to it. If you say nothing, or say no, we place one cookie, and it only remembers what you choose in the cookie bar. There is then no statistics package, no advertising script and no chat window belonging to another company.

If you say yes to statistics, we use Google Analytics 4 to see how many people visit the site and which pages they read. Two cookies are placed for that; on the cookie page they are named, with their retention period, and that is where you change or withdraw your choice.

The processor is Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland, with Google LLC in the United States as a sub-processor. We have accepted Google's data processing terms. Your data may be processed outside the European Union, on the basis of the adequacy decision for the United States and otherwise on the basis of the European Commission's standard contractual clauses. We do not share data with Google for Google's own purposes.

The legal basis is your consent (Article 6(1)(a) GDPR and Article 11.7a of the Dutch Telecommunications Act). You may withdraw it at any time, and that is as easy as giving it: the measurement data is then no longer collected and the two cookies are deleted. Google keeps the events for 14 months.

This is a translation of our Dutch privacy statement. If the two differ, the Dutch version applies.

Last updated: 28 September 2026.

Stevig Kitwerk.Watertight results.

Chat with Kitty, or message us on WhatsAppClose

Kitty

AI assistant of Stevig Kitwerk

Kitty, the mascot of Stevig Kitwerk: a white robot with a green cape and a sealant gun

Kitty

Kitty chats in Dutch. Prefer English? Use WhatsApp or e-mail below.

The conversation with Kitty only works with JavaScript on. Choose WhatsApp or e-mail below and we will help you that way.

Send us an e-mail

Tell us where you are, how many metres it is and what needs doing. A photo of the spot helps most.

info@stevigkitwerk.nl

We reply within 15 minutes on working days.

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