diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 1f22c6d7a501..4169f58b223e 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -954,6 +954,11 @@
    * Settings for all BLTouch and clone probes:
    */
 
+  // Safety: Check that the probe deployment can be detected before homing.
+  //         Cross-checks the endstop state when deployed/stowed and throws
+  //         an error if they don't differ.
+  //#define BLTOUCH_VALIDATE_ON_HOMING
+
   // Safety: The probe needs time to recognize the command.
   //         Minimum command delay (ms). Enable and increase if needed.
   //#define BLTOUCH_DELAY 500
diff --git a/Marlin/src/feature/bltouch.cpp b/Marlin/src/feature/bltouch.cpp
index 02f76c139243..6663da927cb8 100644
--- a/Marlin/src/feature/bltouch.cpp
+++ b/Marlin/src/feature/bltouch.cpp
@@ -196,4 +196,19 @@ void BLTouch::mode_conv_proc(const bool M5V) {
   od_5v_mode = M5V;
 }
 
+#if ENABLED(BLTOUCH_VALIDATE_ON_HOMING)
+  /**
+   * Validate that the BLTouch deploys/stows and reports its state correctly.
+   */
+  bool BLTouch::validate() {
+    _stow();
+    const bool start_status = status();
+    _deploy();
+    const bool deploy_status = status();
+    _stow();
+    const bool stow_status = status();
+    return start_status == stow_status && deploy_status != stow_status;
+  }
+#endif
+
 #endif // BLTOUCH
diff --git a/Marlin/src/feature/bltouch.h b/Marlin/src/feature/bltouch.h
index 0f9f2e68ba31..1eb9c03f55ba 100644
--- a/Marlin/src/feature/bltouch.h
+++ b/Marlin/src/feature/bltouch.h
@@ -78,6 +78,10 @@ class BLTouch {
 
   static float z_extra_clearance() { return TERN0(HAS_BLTOUCH_HS_MODE, high_speed_mode ? BLTOUCH_HS_EXTRA_CLEARANCE : 0); }
 
+  #if ENABLED(BLTOUCH_VALIDATE_ON_HOMING)
+    static bool validate();
+  #endif
+
   // DEPLOY and STOW are wrapped for error handling - these are used by homing and by probing
   static bool deploy()              { return deploy_proc(); }
   static bool stow()                { return stow_proc(); }
diff --git a/Marlin/src/gcode/calibrate/G28.cpp b/Marlin/src/gcode/calibrate/G28.cpp
index 55698c942bd4..2fd8114e4fd2 100644
--- a/Marlin/src/gcode/calibrate/G28.cpp
+++ b/Marlin/src/gcode/calibrate/G28.cpp
@@ -506,15 +506,21 @@ void GcodeSuite::G28() {
               stepper.set_separate_multi_axis(false);
             #endif
 
-            #if ENABLED(Z_SAFE_HOMING)
-              if (TERN1(POWER_LOSS_RECOVERY, !parser.seen_test('H'))) home_z_safely(); else homeaxis(Z_AXIS);
-            #else
-              homeaxis(Z_AXIS);
-            #endif
-
-            #if ANY(Z_HOME_TO_MIN, ALLOW_Z_AFTER_HOMING)
-              finalRaiseZ = true;
-            #endif
+            if (TERN1(BLTOUCH_VALIDATE_ON_HOMING, bltouch.validate())) {
+              #if ENABLED(Z_SAFE_HOMING)
+                if (TERN1(POWER_LOSS_RECOVERY, !parser.seen_test('H'))) home_z_safely(); else homeaxis(Z_AXIS);
+              #else
+                homeaxis(Z_AXIS);
+              #endif
+
+              #if ANY(Z_HOME_TO_MIN, ALLOW_Z_AFTER_HOMING)
+                finalRaiseZ = true;
+              #endif
+            }
+            else {
+              LCD_MESSAGE(MSG_BLTOUCH_VALIDATE_FAILED);
+              SERIAL_ECHO_MSG(STR_ERR_PROBING_FAILED);
+            }
           }
         #endif
 
diff --git a/Marlin/src/lcd/language/language_en.h b/Marlin/src/lcd/language/language_en.h
index 553d9013a243..8433304f17ca 100644
--- a/Marlin/src/lcd/language/language_en.h
+++ b/Marlin/src/lcd/language/language_en.h
@@ -580,6 +580,7 @@ namespace LanguageNarrow_en {
   LSTR MSG_BLTOUCH_MODE_STORE_OD          = _UxGT("Set BLTouch to OD");
   LSTR MSG_BLTOUCH_MODE_ECHO              = _UxGT("Report Drain");
   LSTR MSG_BLTOUCH_MODE_CHANGE            = _UxGT("DANGER: Bad settings can cause damage! Proceed anyway?");
+  LSTR MSG_BLTOUCH_VALIDATE_FAILED        = _UxGT("BLTouch Invalid!");
   LSTR MSG_TOUCHMI_PROBE                  = _UxGT("TouchMI");
   LSTR MSG_TOUCHMI_INIT                   = _UxGT("Init TouchMI");
   LSTR MSG_TOUCHMI_ZTEST                  = _UxGT("Z Offset Test");