diff --git a/homeassistant/components/tado/const.py b/homeassistant/components/tado/const.py
index a41003da95f1e1d0337b082f74849bcf967e85af..5c6a80c5bebcea7b9e89f8b1b591e98da5530107 100644
--- a/homeassistant/components/tado/const.py
+++ b/homeassistant/components/tado/const.py
@@ -226,7 +226,7 @@ HA_TERMINATION_TYPE = "default_overlay_type"
 HA_TERMINATION_DURATION = "default_overlay_seconds"
 
 TADO_DEFAULT_MIN_TEMP = 5
-TADO_DEFAULT_MAX_TEMP = 25
+TADO_DEFAULT_MAX_TEMP = 40
 # Constants for service calls
 SERVICE_ADD_METER_READING = "add_meter_reading"
 CONF_CONFIG_ENTRY = "config_entry"