Pipeline construction
SONNTAG builds underground pressure lines for water supply and drainage and gas
supply. Depending on the customer`s requirements HDPE, cast iron, or suitably lined
and encased steel pipes are used. Our power spectrum covers the laying of service
connection and main lines to DVGW, worksheet GW 301.
In Berlin, we have been offering the trenchless replacement of pressure lines since
1997 and trenchless laying of new pipes since 1998.
This method compared with the open style are economically interesting if the surface
is fastened and if supply lines or roots requires a lot of hand work in the open
style.