front page Company Capital Pirkanmaa and Päijät-Häme Services News Gallery Connections Demanding results, with long experience and strong know-how! Read more! SRT now Rockfon installer! In the future, SRT Oy will also act as an authorized Rockfon Mono installer. Read More The metropolitan area What's happening in the Helsinki metropolitan area - looking forward to another project. Read more... Read More Pirkanmaa and Päijät-Häme Moving towards new challenges. Read more... Read More Copyright 2018 Sisärakennustekniikka SRT Oy | Powered by WordPress | Hero theme by antthemes Follow us: