diff --git a/homeassistant/components/smarttub/binary_sensor.py b/homeassistant/components/smarttub/binary_sensor.py
index 31c6f6d0bc0..2ca2e10245c 100644
--- a/homeassistant/components/smarttub/binary_sensor.py
+++ b/homeassistant/components/smarttub/binary_sensor.py
@@ -2,12 +2,14 @@
 import logging
 
 from smarttub import SpaReminder
+import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASS_CONNECTIVITY,
     DEVICE_CLASS_PROBLEM,
     BinarySensorEntity,
 )
+from homeassistant.helpers import entity_platform
 
 from .const import ATTR_REMINDERS, DOMAIN, SMARTTUB_CONTROLLER
 from .entity import SmartTubEntity, SmartTubSensorBase
@@ -17,6 +19,12 @@ _LOGGER = logging.getLogger(__name__)
 # whether the reminder has been snoozed (bool)
 ATTR_REMINDER_SNOOZED = "snoozed"
 
+# how many days to snooze the reminder for
+ATTR_SNOOZE_DAYS = "days"
+SNOOZE_REMINDER_SCHEMA = {
+    vol.Required(ATTR_SNOOZE_DAYS): vol.All(vol.Coerce(int), vol.Range(min=10, max=120))
+}
+
 
 async def async_setup_entry(hass, entry, async_add_entities):
     """Set up binary sensor entities for the binary sensors in the tub."""
@@ -33,6 +41,14 @@ async def async_setup_entry(hass, entry, async_add_entities):
 
     async_add_entities(entities)
 
+    platform = entity_platform.current_platform.get()
+
+    platform.async_register_entity_service(
+        "snooze_reminder",
+        SNOOZE_REMINDER_SCHEMA,
+        "async_snooze",
+    )
+
 
 class SmartTubOnline(SmartTubSensorBase, BinarySensorEntity):
     """A binary sensor indicating whether the spa is currently online (connected to the cloud)."""
@@ -98,3 +114,9 @@ class SmartTubReminder(SmartTubEntity, BinarySensorEntity):
     def device_class(self) -> str:
         """Return the device class for this entity."""
         return DEVICE_CLASS_PROBLEM
+
+    async def async_snooze(self, **kwargs):
+        """Snooze this reminder for the specified number of days."""
+        days = kwargs[ATTR_SNOOZE_DAYS]
+        await self.reminder.snooze(days)
+        await self.coordinator.async_request_refresh()
diff --git a/homeassistant/components/smarttub/services.yaml b/homeassistant/components/smarttub/services.yaml
index 30bd225113e..bb5ee66f1d0 100644
--- a/homeassistant/components/smarttub/services.yaml
+++ b/homeassistant/components/smarttub/services.yaml
@@ -45,3 +45,22 @@ set_secondary_filtration:
             - "away"
       required: true
       example: "frequent"
+
+snooze_reminder:
+  name: Snooze a reminder
+  description: Delay a reminder, so that it won't trigger again for a period of time.
+  target:
+    entity:
+      integration: smarttub
+      domain: binary_sensor
+  fields:
+    days:
+      name: Days
+      description: The number of days to delay the reminder.
+      required: true
+      example: 7
+      selector:
+        number:
+          min: 10
+          max: 120
+          unit_of_measurement: days
diff --git a/tests/components/smarttub/test_binary_sensor.py b/tests/components/smarttub/test_binary_sensor.py
index b5a7c516a0e..b39986ef394 100644
--- a/tests/components/smarttub/test_binary_sensor.py
+++ b/tests/components/smarttub/test_binary_sensor.py
@@ -19,3 +19,23 @@ async def test_reminders(spa, setup_entry, hass):
     assert state is not None
     assert state.state == STATE_OFF
     assert state.attributes["snoozed"] is False
+
+
+async def test_snooze(spa, setup_entry, hass):
+    """Test snoozing a reminder."""
+
+    entity_id = f"binary_sensor.{spa.brand}_{spa.model}_myfilter_reminder"
+    reminder = spa.get_reminders.return_value[0]
+    days = 30
+
+    await hass.services.async_call(
+        "smarttub",
+        "snooze_reminder",
+        {
+            "entity_id": entity_id,
+            "days": 30,
+        },
+        blocking=True,
+    )
+
+    reminder.snooze.assert_called_with(days)