diff --git a/app/services/address_client.rb b/app/services/address_client.rb
index 670fbe643..831dfde54 100644
--- a/app/services/address_client.rb
+++ b/app/services/address_client.rb
@@ -30,7 +30,7 @@ private
     client.use_ssl = true
     client.verify_mode = OpenSSL::SSL::VERIFY_PEER
     client.max_retries = 3
-    client.read_timeout = 10 # seconds
+    client.read_timeout = 30 # seconds
     client
   end
 
diff --git a/app/services/postcode_service.rb b/app/services/postcode_service.rb
index 74c1f4895..c3c6dcfdd 100644
--- a/app/services/postcode_service.rb
+++ b/app/services/postcode_service.rb
@@ -11,7 +11,7 @@ class PostcodeService
     begin
       # URI encoding only supports ASCII characters
       ascii_postcode = self.class.clean(postcode)
-      Timeout.timeout(5) { postcode_lookup = @pio.lookup(ascii_postcode) }
+      Timeout.timeout(30) { postcode_lookup = @pio.lookup(ascii_postcode) }
     rescue Timeout::Error
       Rails.logger.warn("Postcodes.io lookup timed out")
     end
diff --git a/app/services/uprn_client.rb b/app/services/uprn_client.rb
index 2e57a6072..7c9bf8940 100644
--- a/app/services/uprn_client.rb
+++ b/app/services/uprn_client.rb
@@ -30,7 +30,7 @@ private
     client.use_ssl = true
     client.verify_mode = OpenSSL::SSL::VERIFY_PEER
     client.max_retries = 3
-    client.read_timeout = 10 # seconds
+    client.read_timeout = 30 # seconds
     client
   end