
Cookies
Cookies
This site measures nothing until you say yes to it, and does not track you across other sites. Below is exactly what we place, and here is where you change or withdraw your choice.
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
In short
What we place
If you say nothing, or say no, this site places one cookie, and it serves only to remember what you choose below. Nothing goes to Google in that case: the measurement script is not even fetched.
If you say yes to statistics, two Google Analytics cookies are added. They are listed further down by name and retention period. There is no advertising script and no chat window belonging to another company.
The fonts are hosted on our own server, so your browser makes no connection to Google for them. If you say yes to statistics, it does make one, to fetch the measurement script.
Below is exactly what is placed, per category.
Always
Necessary, and therefore without asking
For cookies that are needed to make the site work, nothing has to be asked. That is what the law says, and it would be odd otherwise: you cannot remember a choice without storing it somewhere.
| Name | What for | How long |
|---|---|---|
| sk_toestemming | Remembers what you choose below, so that the bar does not appear again on every page. Sits on our own server, goes to nobody else. | 6 months |
Without your yes, nothing else is stored in your browser, with one exception: if you start a conversation in the chat, your browser keeps the code of that conversation in sessionStorage under the name sk_chat, so that the conversation carries on if you move to another page. That is not a cookie, it goes nowhere, and it is gone as soon as you close the tab. No localStorage.
Only with your yes
Statistics, if you allow them
If you say yes to statistics, we use Google Analytics to see how many people visit the site and which pages they read. These two cookies are what that costs. If you say no, or say nothing, the script is not loaded and they are not there.
| Name | What for | How long |
|---|---|---|
| _ga | Gives your browser a random number, so that Google Analytics can count two visits from the same browser as one visitor. It holds no name and no email address. | 2 years |
| _ga_SEQHMVGGT6 | Keeps track of whether your visit is still the same session, so that one visit to four pages is not counted as four visits. | 2 years |
They are placed by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland. Google processes that data on our behalf and may not use it for its own purposes; it may also be processed outside the European Union. If you withdraw your choice, we stop the measuring and delete these two cookies.
Your choice
Change or withdraw
Below you can see what you have chosen now. You can change it at any time, and withdrawing is just as easy as allowing: take the tick out and save.
Yourself
Deleting cookies in your browser
You can also delete or block cookies yourself through your browser settings. If you delete our cookie, we no longer know your choice and the bar appears again. The site keeps working as normal.
If you would like to know what other data we process and how long we keep it, read the privacy statement.
Last updated: 28 September 2026.


