Contact Us Our Contact Information. tel : 021 945 2731 / 2 fax : 021 945 2701 email : info@swisslinedesign.co.za premises : 2 Thermo Street, Triangle Farm, Stikland Bellville postal : po box 650 durbanville 7551 Please complete the form below to contact us. Your Name (required) Your Email (required) Interested In StairwaysBalustradesRoof ConstructionModular Timber HomesStructural TimberworkSpruce Timber SalesGeneral Timber WorkLoft ConversionsOther Your Query