diff --git a/etl/pdfReader/sitenotes.py b/etl/pdfReader/sitenotes.py
index 9ece91f..edd30fc 100644
--- a/etl/pdfReader/sitenotes.py
+++ b/etl/pdfReader/sitenotes.py
@@ -321,7 +321,8 @@ class QuidosSiteNotesExtractor(SiteNotesExtractor):
         pass
 
     def get_section_7(self):
-        data = self.raw_data[self.raw_data.index('7.0 Walls'): self.raw_data.index('8.0 Roofs')]
+        data = self.get_data_between('7.0 Walls','8.0 Roofs')
+
         sub_titles = [
             "Construction",
             "Insulation",