diff --git a/include/gz/gui/Application.hh b/include/gz/gui/Application.hh
index d557cb2d8..662a62725 100644
--- a/include/gz/gui/Application.hh
+++ b/include/gz/gui/Application.hh
@@ -25,12 +25,7 @@
 #include "gz/gui/qt.h"
 #include "gz/gui/Export.hh"
 
-#ifdef _WIN32
-// Disable warning C4251 which is triggered by
-// std::unique_ptr
-#pragma warning(push)
-#pragma warning(disable: 4251)
-#endif
+#include <gz/utils/ImplPtr.hh>
 
 namespace tinyxml2
 {
@@ -39,7 +34,6 @@ namespace tinyxml2
 
 namespace gz::gui
 {
-class ApplicationPrivate;
 class Dialog;
 class MainWindow;
 class Plugin;
@@ -208,7 +202,7 @@ class GZ_GUI_VISIBLE Application : public QApplication
 
   /// \internal
   /// \brief Private data pointer
-  private: std::unique_ptr<ApplicationPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 
 /// \brief Get current running application, this is a cast of qGuiApp.
@@ -216,9 +210,4 @@ class GZ_GUI_VISIBLE Application : public QApplication
 GZ_GUI_VISIBLE
 Application *App();
 }  // namespace gz::gui
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
 #endif  // GZ_GUI_APPLICATION_HH_
diff --git a/include/gz/gui/Dialog.hh b/include/gz/gui/Dialog.hh
index ad366037e..04a165607 100644
--- a/include/gz/gui/Dialog.hh
+++ b/include/gz/gui/Dialog.hh
@@ -24,18 +24,10 @@
 #include "gz/gui/qt.h"
 #include "gz/gui/Export.hh"
 
-#ifdef _WIN32
-// Disable warning C4251 which is triggered by
-// std::unique_ptr
-#pragma warning(push)
-#pragma warning(disable: 4251)
-#endif
+#include <gz/utils/ImplPtr.hh>
 
 namespace gz::gui
 {
-/// Forward declarations
-class DialogPrivate;
-
 /// \brief Gui plugin
 class GZ_GUI_VISIBLE Dialog : public QObject
 {
@@ -91,12 +83,7 @@ class GZ_GUI_VISIBLE Dialog : public QObject
 
   /// \internal
   /// \brief Private data pointer
-  private: std::unique_ptr<DialogPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 }  // namespace gz::gui
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
 #endif  // GZ_GUI_DIALOG_HH_
diff --git a/include/gz/gui/MainWindow.hh b/include/gz/gui/MainWindow.hh
index 58bd9584d..a970f2654 100644
--- a/include/gz/gui/MainWindow.hh
+++ b/include/gz/gui/MainWindow.hh
@@ -28,17 +28,9 @@
 #include "gz/gui/qt.h"
 #include "gz/gui/Export.hh"
 
-#ifdef _WIN32
-// Disable warning C4251 which is triggered by
-// std::unique_ptr
-#pragma warning(push)
-#pragma warning(disable: 4251)
-#endif
-
 namespace gz::gui
 {
 Q_NAMESPACE
-class MainWindowPrivate;
 struct WindowConfig;
 
 /// \brief The action executed when GUI is closed without prompt.
@@ -583,7 +575,7 @@ class GZ_GUI_VISIBLE MainWindow : public QObject
 
   /// \internal
   /// \brief Private data pointer
-  private: std::unique_ptr<MainWindowPrivate> dataPtr;
+  private: GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 
 /// \brief Holds configurations related to a MainWindow.
diff --git a/include/gz/gui/PlottingInterface.hh b/include/gz/gui/PlottingInterface.hh
index fefd6c3e3..85b7ae2e5 100644
--- a/include/gz/gui/PlottingInterface.hh
+++ b/include/gz/gui/PlottingInterface.hh
@@ -38,10 +38,10 @@
 
 #include "gz/gui/Export.hh"
 
+#include <gz/utils/ImplPtr.hh>
+
 namespace gz::gui
 {
-class PlotDataPrivate;
-
 /// \brief Plot Data containter to hold value and registered charts
 /// Can be a Field or a PlotComponent
 /// Used by PlottingInterface and Gazebo Plotting
@@ -85,11 +85,9 @@ class GZ_GUI_VISIBLE PlotData
   public: std::set<int> &Charts();
 
   /// \brief Private data member.
-  private: std::unique_ptr<PlotDataPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 
-class TopicPrivate;
-
 /// \brief Plotting Topic to handle published topics & their registered fields
 class GZ_GUI_VISIBLE Topic : public QObject
 {
@@ -149,11 +147,9 @@ class GZ_GUI_VISIBLE Topic : public QObject
   public: void SetPlottingTimeRef(const std::shared_ptr<double> &_time);
 
   /// \brief Private data member.
-  private: std::unique_ptr<TopicPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 
-class TransportPrivate;
-
 /// \brief Handle transport topics subscribing for one object (Chart)
 class GZ_GUI_VISIBLE Transport : public QObject
 {
@@ -203,12 +199,11 @@ class GZ_GUI_VISIBLE Transport : public QObject
   /// \param[in] _y y coordinates of the plot point
   signals: void plot(int _chart, QString _fieldID, double _x, double _y);
 
+  private:
   /// \brief Private data member.
-  private: std::unique_ptr<TransportPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 
-class PlottingIfacePrivate;
-
 /// \brief Plotting Interface
 /// Responsible for plotting transport msgs-fields
 /// Used by TransportPlotting Plugin & GazeboPlotting Plugin
@@ -328,8 +323,7 @@ class GZ_GUI_VISIBLE PlottingInterface : public QObject
   public slots: void UpdateTime();
 
   /// \brief Private data member.
-  private: std::unique_ptr<PlottingIfacePrivate> dataPtr;
+  private: GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
-
 }  // namespace gz::gui
 #endif  // GZ_GUI_PLOTTINGINTERFACE_HH_
diff --git a/include/gz/gui/Plugin.hh b/include/gz/gui/Plugin.hh
index 323ac37d8..5d608c807 100644
--- a/include/gz/gui/Plugin.hh
+++ b/include/gz/gui/Plugin.hh
@@ -18,26 +18,18 @@
 #define GZ_GUI_PLUGIN_HH_
 
 #include <tinyxml2.h>
+#include <gz/utils/ImplPtr.hh>
 #include <memory>
 #include <string>
 
 #include "gz/gui/qt.h"
 #include "gz/gui/Export.hh"
 
-#ifdef _WIN32
-// Disable warning C4251 which is triggered by
-// std::unique_ptr
-#pragma warning(push)
-#pragma warning(disable: 4251)
-#endif
-
 namespace gz::gui
 {
 /// \brief Namespace for all plugins
 namespace plugins {}
 
-class PluginPrivate;
-
 /// \brief Base class for Gazebo GUI plugins.
 ///
 /// When inheriting from this plugin, the following are assumed:
@@ -102,15 +94,11 @@ class GZ_GUI_VISIBLE Plugin : public QObject
   ///
   /// \sa Load
   /// \param[in] _pluginElem Element containing configuration
-  protected: virtual void LoadConfig(
-      const tinyxml2::XMLElement *_pluginElem)
-      {
-        (void)_pluginElem;
-      }
+  protected: virtual void LoadConfig(const tinyxml2::XMLElement *_pluginElem);
 
   /// \brief Get title
   /// \return Plugin title.
-  public: virtual std::string Title() const {return this->title;}
+  public: virtual std::string Title() const;
 
   /// \brief Get the value of the the `delete_later` element from the
   /// configuration file, which defaults to false.
@@ -142,11 +130,7 @@ class GZ_GUI_VISIBLE Plugin : public QObject
 
   /// \internal
   /// \brief Pointer to private data
-  private: std::unique_ptr<PluginPrivate> dataPtr;
+  GZ_UTILS_UNIQUE_IMPL_PTR(dataPtr)
 };
 }  // namespace gz::gui
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
 #endif  // GZ_GUI_PLUGIN_HH_
diff --git a/src/Application.cc b/src/Application.cc
index e1e18cf78..397b343ba 100644
--- a/src/Application.cc
+++ b/src/Application.cc
@@ -47,7 +47,7 @@ enum class GZ_COMMON_HIDDEN AvailableAPIs
 
 namespace gz::gui
 {
-class ApplicationPrivate
+class Application::Implementation
 {
   /// \brief QML engine
   public: QQmlApplicationEngine *engine{nullptr};
@@ -91,7 +91,7 @@ class ApplicationPrivate
 Application::Application(int &_argc, char **_argv, const WindowType _type,
                          const char *_renderEngineGuiApiBackend) :
   QApplication(_argc, _argv),
-  dataPtr(new ApplicationPrivate)
+  dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   gzdbg << "Initializing application." << std::endl;
 
@@ -880,7 +880,7 @@ void Application::RemovePlugin(std::shared_ptr<Plugin> _plugin)
 }
 
 //////////////////////////////////////////////////
-void ApplicationPrivate::MessageHandler(QtMsgType _type,
+void Application::Implementation::MessageHandler(QtMsgType _type,
     const QMessageLogContext &_context, const QString &_msg)
 {
   std::string msg = "[QT] " + _msg.toStdString();
@@ -908,4 +908,4 @@ void ApplicationPrivate::MessageHandler(QtMsgType _type,
       break;
   }
 }
-}  // namepace gz::gui
+}  // namespace gz::gui
diff --git a/src/Dialog.cc b/src/Dialog.cc
index 796dfed39..7701c2cfd 100644
--- a/src/Dialog.cc
+++ b/src/Dialog.cc
@@ -18,12 +18,13 @@
 #include <tinyxml2.h>
 
 #include <gz/common/Console.hh>
+#include <gz/utils/ImplPtr.hh>
 #include "gz/gui/Application.hh"
 #include "gz/gui/Dialog.hh"
 
 namespace gz::gui
 {
-class DialogPrivate
+class Dialog::Implementation
 {
   /// \brief Pointer to quick window
   public: QQuickWindow *quickWindow{nullptr};
@@ -31,7 +32,7 @@ class DialogPrivate
 
 /////////////////////////////////////////////////
 Dialog::Dialog()
-  : dataPtr(new DialogPrivate)
+  : dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   // Load QML and keep pointer to generated QQuickWindow
   std::string qmlFile("qrc:qml/StandaloneDialog.qml");
@@ -50,9 +51,7 @@ Dialog::Dialog()
 }
 
 /////////////////////////////////////////////////
-Dialog::~Dialog()
-{
-}
+Dialog::~Dialog() = default;
 
 /////////////////////////////////////////////////
 QQuickWindow *Dialog::QuickWindow() const
diff --git a/src/MainWindow.cc b/src/MainWindow.cc
index ec009c0af..df1e0fe5f 100644
--- a/src/MainWindow.cc
+++ b/src/MainWindow.cc
@@ -16,6 +16,7 @@
  */
 
 #include <tinyxml2.h>
+#include <gz/utils/ImplPtr.hh>
 #include <regex>
 #include <string>
 
@@ -29,11 +30,21 @@
 #include "gz/msgs/server_control.pb.h"
 #include "gz/transport/Node.hh"
 
+namespace {
+/// \brief Strip last component from a path.
+/// \return Original path without its last component.
+/// \ToDo: Move this function to common::Filesystem
+std::string dirName(const std::string &_path)
+{
+  std::size_t found = _path.find_last_of("/\\");
+  return _path.substr(0, found);
+}
+}  // namespace
+
 namespace gz::gui
 {
-class MainWindowPrivate
+class MainWindow::Implementation
 {
-  /// \brief Number of plugins on the window
   public: int pluginCount{0};
 
   /// \brief Pointer to quick window
@@ -77,18 +88,9 @@ class MainWindowPrivate
   public: gz::transport::Node node;
 };
 
-/// \brief Strip last component from a path.
-/// \return Original path without its last component.
-/// \ToDo: Move this function to common::Filesystem
-std::string dirName(const std::string &_path)
-{
-  std::size_t found = _path.find_last_of("/\\");
-  return _path.substr(0, found);
-}
-
 /////////////////////////////////////////////////
 MainWindow::MainWindow()
-  : dataPtr(new MainWindowPrivate)
+  : dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   // Expose the ExitAction enum to QML via ExitAction 1.0 module
   qRegisterMetaType<ExitAction>("ExitAction");
@@ -115,9 +117,7 @@ MainWindow::MainWindow()
 }
 
 /////////////////////////////////////////////////
-MainWindow::~MainWindow()
-{
-}
+MainWindow::~MainWindow() = default;
 
 /////////////////////////////////////////////////
 QStringList MainWindow::PluginListModel() const
diff --git a/src/PlottingInterface.cc b/src/PlottingInterface.cc
index 3c8f69359..1feea96b6 100644
--- a/src/PlottingInterface.cc
+++ b/src/PlottingInterface.cc
@@ -25,13 +25,15 @@
 #include "gz/gui/PlottingInterface.hh"
 #include "gz/gui/Application.hh"
 
+#include <gz/utils/ImplPtr.hh>
+
 #define DEFAULT_TIME (INT_MIN)
 // 1/60 Period like the GuiSystem frequency (60Hz)
 #define MAX_PERIOD_DIFF (0.0166666667)
 
 namespace gz::gui
 {
-class PlotDataPrivate
+class PlotData::Implementation
 {
   /// \brief Value of that field
   public: double value;
@@ -43,8 +45,7 @@ class PlotDataPrivate
   public: std::set<int> charts;
 };
 
-
-class TopicPrivate
+class Topic::Implementation
 {
   /// \brief Check the plotable types and get data from reflection
   /// \param[in] _msg Message to get data from
@@ -66,7 +67,7 @@ class TopicPrivate
   public: std::map<std::string, gz::gui::PlotData*> fields;
 };
 
-class TransportPrivate
+class Transport::Implementation
 {
   /// \brief Node for Commincation
   public: gz::transport::Node node;
@@ -75,7 +76,7 @@ class TransportPrivate
   public: std::map<std::string, gz::gui::Topic*> topics;
 };
 
-class PlottingIfacePrivate
+class PlottingInterface::Implementation
 {
   /// \brief Responsible for transport messages and topics
   public: Transport transport;
@@ -87,20 +88,18 @@ class PlottingIfacePrivate
   public: int timeout;
 
   /// \brief timer to update the plotting each time step
-  public: QTimer timer;
+  public: QTimer timer {nullptr};
 };
 
 //////////////////////////////////////////////////////
 PlotData::PlotData() :
-    dataPtr(std::make_unique<PlotDataPrivate>())
+    dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   this->dataPtr->value = 0;
 }
 
 //////////////////////////////////////////////////////
-PlotData::~PlotData()
-{
-}
+PlotData::~PlotData() = default;
 
 //////////////////////////////////////////////////////
 void PlotData::SetValue(const double _value)
@@ -153,8 +152,8 @@ std::set<int> &PlotData::Charts()
 }
 
 //////////////////////////////////////////////////////
-Topic::Topic(const std::string &_name) : QObject(),
-    dataPtr(std::make_unique<TopicPrivate>())
+Topic::Topic(const std::string &_name):
+    dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   this->dataPtr->name = _name;
 }
@@ -364,7 +363,7 @@ void Topic::SetPlottingTimeRef(const std::shared_ptr<double> &_timeRef)
 }
 
 //////////////////////////////////////////////////////
-double TopicPrivate::FieldData(const google::protobuf::Message &_msg,
+double Topic::Implementation::FieldData(const google::protobuf::Message &_msg,
                                const google::protobuf::FieldDescriptor *_field)
 {
   using namespace google::protobuf;
@@ -393,7 +392,8 @@ double TopicPrivate::FieldData(const google::protobuf::Message &_msg,
 }
 
 ////////////////////////////////////////////
-Transport::Transport() : dataPtr(std::make_unique<TransportPrivate>())
+Transport::Transport():
+  dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
 }
 
@@ -484,7 +484,7 @@ void Transport::UnsubscribeOutdatedTopics()
 
 //////////////////////////////////////////////////////
 PlottingInterface::PlottingInterface() : QObject(),
-    dataPtr(std::make_unique<PlottingIfacePrivate>())
+    dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
   connect(&this->dataPtr->transport,
           SIGNAL(plot(int, QString, double, double)), this,
diff --git a/src/Plugin.cc b/src/Plugin.cc
index fbdc02762..2f9e7855d 100644
--- a/src/Plugin.cc
+++ b/src/Plugin.cc
@@ -15,6 +15,7 @@
  *
  */
 
+#include <gz/utils/ImplPtr.hh>
 #include <unordered_set>
 
 #include <gz/common/Console.hh>
@@ -23,6 +24,8 @@
 #include "gz/gui/MainWindow.hh"
 #include "gz/gui/Plugin.hh"
 
+namespace
+{
 /// \brief Used to store information about anchors set by the user.
 struct Anchors
 {
@@ -36,7 +39,7 @@ struct Anchors
 };
 
 /// \brief Set of all possible lines.
-static const std::unordered_set<std::string> kAnchorLineSet{
+const std::unordered_set<std::string> kAnchorLineSet{
     "top",
     "bottom",
     "left",
@@ -46,14 +49,15 @@ static const std::unordered_set<std::string> kAnchorLineSet{
     "baseline"};
 
 /// \brief Properties which shouldn't be saved or loaded
-static const std::unordered_set<std::string> kIgnoredProps{
+const std::unordered_set<std::string> kIgnoredProps{
     "objectName",
     "pluginName",
     "anchored"};
+}  // namespace
 
 namespace gz::gui
 {
-class PluginPrivate
+class Plugin::Implementation
 {
   /// \brief Set this to true if the plugin should be deleted as soon as it has
   ///  a parent.
@@ -82,11 +86,8 @@ class PluginPrivate
   public: Anchors anchors;
 };
 
-using namespace gz;
-using namespace gui;
-
 /////////////////////////////////////////////////
-Plugin::Plugin() : dataPtr(new PluginPrivate)
+Plugin::Plugin() : dataPtr(gz::utils::MakeUniqueImpl<Implementation>())
 {
 }
 
@@ -517,6 +518,17 @@ void Plugin::PostParentChanges()
   }
 }
 
+/////////////////////////////////////////////////
+void Plugin::LoadConfig(const tinyxml2::XMLElement *_pluginElem)
+{
+  (void) _pluginElem;
+}
+
+/////////////////////////////////////////////////
+std::string Plugin::Title() const {
+  return this->title;
+}
+
 /////////////////////////////////////////////////
 void Plugin::ApplyAnchors()
 {