diff --git a/packages/platform-server/src/styles_host.ts b/packages/platform-server/src/styles_host.ts
index 47aeba45d2..e8364cb183 100644
--- a/packages/platform-server/src/styles_host.ts
+++ b/packages/platform-server/src/styles_host.ts
@@ -13,6 +13,7 @@ import {ɵSharedStylesHost as SharedStylesHost, ɵTRANSITION_ID} from '@angular/
 @Injectable()
 export class ServerStylesHost extends SharedStylesHost {
   private head: any = null;
+  private _styleNodes = new Set<HTMLElement>();
 
   constructor(
       @Inject(DOCUMENT) private doc: any,
@@ -29,9 +30,14 @@ export class ServerStylesHost extends SharedStylesHost {
       el.setAttribute('ng-transition', this.transitionId);
     }
     this.head.appendChild(el);
+    this._styleNodes.add(el);
   }
 
   onStylesAdded(additions: Set<string>) {
     additions.forEach(style => this._addStyle(style));
   }
+
+  ngOnDestroy() {
+    this._styleNodes.forEach(styleNode => styleNode.remove());
+  }
 }
diff --git a/packages/platform-server/test/server_styles_host_spec.ts b/packages/platform-server/test/server_styles_host_spec.ts
new file mode 100644
index 0000000000..5a0056fb13
--- /dev/null
+++ b/packages/platform-server/test/server_styles_host_spec.ts
@@ -0,0 +1,50 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {ɵgetDOM as getDOM} from '@angular/common';
+import {ServerStylesHost} from '@angular/platform-server/src/styles_host';
+
+
+(function() {
+if (getDOM().supportsDOMEvents()) return;  // NODE only
+
+describe('ServerStylesHost', () => {
+  let ssh: ServerStylesHost;
+  let documentHead: Element;
+  beforeEach(() => {
+    const doc = getDOM().createHtmlDocument();
+    ssh = new ServerStylesHost(doc, '');
+    documentHead = doc.head;
+    doc.querySelector('title')?.remove();
+  });
+
+  it('should add existing styles', () => {
+    ssh.addStyles(['a {};']);
+    expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
+  });
+
+  it('should add new styles to hosts', () => {
+    ssh.addStyles(['a {};']);
+    expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
+  });
+
+  it('should add styles only once to hosts', () => {
+    ssh.addStyles(['a {};']);
+    ssh.addStyles(['a {};']);
+    expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
+  });
+
+  it('should remove style nodes on destroy', () => {
+    ssh.addStyles(['a {};']);
+    expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
+
+    ssh.ngOnDestroy();
+    expect(documentHead.innerHTML).toEqual('');
+  });
+});
+})();