diff --git a/etl/customers/stonewater/Wave 3 Preparation.py b/etl/customers/stonewater/Wave 3 Preparation.py
index 30a23e86..777f96c5 100644
--- a/etl/customers/stonewater/Wave 3 Preparation.py	
+++ b/etl/customers/stonewater/Wave 3 Preparation.py	
@@ -128,8 +128,8 @@ def extract_retrofit_pdfs(data_folder_path):
         pdf_path = os.path.join(data_folder_path, pdf_file)
         return detect_and_parse_report(pdf_path, pdf_file)
 
-    # If no relevant PDF is found, raise an exception
-    raise FileNotFoundError("No valid report (EPR or Summary) found in the retrofit assessment folder.")
+    # If no relevant PDF is found, exit
+    return None
 
 
 def is_energy_report(text):
@@ -199,6 +199,10 @@ def main():
                     }
                     extracted_data.append(summary_data)
                     continue
+            else:
+                # Then we have an empty Retrofit Assessment folder
+                continue
+
         # If no retrofit folder or it was empty, check files in survey_folder
         summary_data = extract_retrofit_pdfs(survey_folder_path)
         if summary_data: