diff --git a/themes/classic/templates/_partials/head.tpl b/themes/classic/templates/_partials/head.tpl
index b0c3a56a..fa6ff227 100644
--- a/themes/classic/templates/_partials/head.tpl
+++ b/themes/classic/templates/_partials/head.tpl
@@ -109,4 +109,11 @@
       s.parentNode.insertBefore(c,s);
   })(document);
 </script>
+<!-- Google Tag Manager -->
+<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-PCWJ25RQ');</script>
+<!-- End Google Tag Manager -->
 {/literal}
\ No newline at end of file
diff --git a/themes/classic/templates/layouts/layout-both-columns.tpl b/themes/classic/templates/layouts/layout-both-columns.tpl
index 0d5a9b16..8661449e 100644
--- a/themes/classic/templates/layouts/layout-both-columns.tpl
+++ b/themes/classic/templates/layouts/layout-both-columns.tpl
@@ -35,7 +35,9 @@
 </head>
 
 <body id="{$page.page_name}" class="{$page.body_classes|classnames}">
-
+  <!-- Google Tag Manager (noscript) -->
+  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PCWJ25RQ" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+  <!-- End Google Tag Manager (noscript) -->
   {block name='hook_after_body_opening_tag'}
     {hook h='displayAfterBodyOpeningTag'}
   {/block}
