The housing stock
What we are usually working with in Streatham Vale
Rear extensions on these sit on shallow foundations, and the crack at the junction with the original wall tells you which way it has moved. The old tops come off in pieces, and what is under them decides whether the units need levelling before anything new goes on. Whatever the old top hid comes to light.
These houses almost all still have the original back-boiler flue or a boxed vertical duct in the kitchen corner, so allow for a notched return leg as a matter of course.
Downstairs the hall and dining room are boarded but the kitchen was laid solid from the start, so the room sits on a different construction from the one beside it. The cill over the sink is checked against the new upstand height before anything is cut. The fabric gets checked while it is open.
On this patch the buildings are 1930s semi, Interwar terrace and Postwar infill. They were built to different tolerances, and the stone has to absorb that.
Access. Streets are quieter and largely uncontrolled compared with the Streatham high road, and many houses have hardstanding or a dropped kerb. The railway line and the limited crossings mean the approach route needs checking, and side alleys are around 780mm at the gate.
There is nothing to visit in Streatham Vale. Samples are posted free, the template is taken in your kitchen and the stone is fitted there too.