Area Covered by County Durham Boiler repiars service installation Engineers
Aldbrough St John , Aycliffe , Barnard Castle , Billingham , Bishop Auckland , Bowburn , Bowes , Brancepeth , Brandon , Burnhope , Burnopfield , Carrville , Castleside , Cotherstone ,Cowshill , Coxhoe , Croft On Tees , Crook , Croxdale , Durham , Eaglescliffe , Edmondsley , Esh , Ferryhill , Fir Tree , Forest In Teesdale , Frosterley , Guisborough , Haswell , Haswell Plough , Holwick , Ireshopeburn , Lanchester , Langley Moor , Langley Park , Lartington , Low Pittington , Mickleton , Middlestone , Middleton In Teesdale , Middleton St George , Newton Aycliffe , Peterlee , Piercebridge , Quebec , Romaldkirk , Rushyford , Sacriston , Seaham , Sedgefield , Shildon , Shincliffe , Shotley Bridge , Shotton Colliery , Spennymoor , St Johns Chapel , Stanhope , Stockton On Tees , Thornley , Tow Law , Trimdon , Trimdon Grange , Ushaw Moor , Walworth , Weardale , Wearhead , West Auckland , Wheatley , Whitworth , Witton Gilbert , Wolsingham