Relax... you have found a reliable builder in Darwen. DAVE COMBER DESIGN & BUILD is a friendly and reliable company based in Darwen who consider no job as too big or too small. Qualified, professional builders with years of experience in the industry.
"RSJ installation. Already have structural engineer design and spec. Knocking down of an internal wall dividing kitchen and dining room to make one open space. Requires two steels. One 3.91m replacing the existing wall, with a welded plate on to connect a 2nd steel of 2.3m running to the gable end."