diff --git a/homeassistant/components/sonos/media_browser.py b/homeassistant/components/sonos/media_browser.py
index 87ee3ed3b4d..6e6f388ed50 100644
--- a/homeassistant/components/sonos/media_browser.py
+++ b/homeassistant/components/sonos/media_browser.py
@@ -7,6 +7,7 @@ from contextlib import suppress
 from functools import partial
 import logging
 from typing import cast
+import urllib.parse
 
 from soco.data_structures import DidlObject
 from soco.ms_data_structures import MusicServiceItem
@@ -60,12 +61,14 @@ def get_thumbnail_url_full(
             media_content_id,
             media_content_type,
         )
-        return getattr(item, "album_art_uri", None)
+        return urllib.parse.unquote(getattr(item, "album_art_uri", ""))
 
-    return get_browse_image_url(
-        media_content_type,
-        media_content_id,
-        media_image_id,
+    return urllib.parse.unquote(
+        get_browse_image_url(
+            media_content_type,
+            media_content_id,
+            media_image_id,
+        )
     )
 
 
@@ -166,6 +169,7 @@ def build_item_response(
         payload["idstring"] = "A:ALBUMARTIST/" + "/".join(
             payload["idstring"].split("/")[2:]
         )
+        payload["idstring"] = urllib.parse.unquote(payload["idstring"])
 
     try:
         search_type = MEDIA_TYPES_TO_SONOS[payload["search_type"]]
@@ -510,7 +514,7 @@ def get_media(
     if not item_id.startswith("A:ALBUM") and search_type == SONOS_ALBUM:
         item_id = "A:ALBUMARTIST/" + "/".join(item_id.split("/")[2:])
 
-    search_term = item_id.split("/")[-1]
+    search_term = urllib.parse.unquote(item_id.split("/")[-1])
     matches = media_library.get_music_library_information(
         search_type, search_term=search_term, full_album_art_uri=True
     )