Contact More information? Do you have questions, suggestions, ideas or other comments? We’d love to hear it! To contact us, please fill in the form below. Je naam (verplicht) Je e-mailadres (verplicht) Onderwerp Je bericht Contact details VOF Sietse Jorna Werpsterdyk 9 9088 BZ WIRDUM Tel: 058 – 2552129 Email: info@sietsejorna.nl Sietse Jorna 06-22214562 sales general Wigle de Groot 06-51367194 sales field service Age-Jan Jorna 06-42435402 shop / workshop Mechiel Jorna 06-30756405 general / webshop Opening hours: Monday to Friday: 08:30 – 17:30 Saturday: 09:00 – 17:00 Sunday: closed Deviating opening times: Day Date Opening hours New Year’s Day January 1, 2023 Closed Good Friday April 7, 2023 Closed Easter Monday April 10, 2023 Closed Royal day April 27, 2023 Closed Liberation Day May 5, 2023 Closed Ascension Day May 18, 2023 Closed 2nd Pentecost day May 29, 2023 Closed Christmas Day December 25, 2023 Closed 2nd day of Christmas December 26, 2023 Closed