diff --git a/apps/docs/src/pages/components/dialog.mdx b/apps/docs/src/pages/components/dialog.mdx
index 2b376c6fde..387a160bb5 100644
--- a/apps/docs/src/pages/components/dialog.mdx
+++ b/apps/docs/src/pages/components/dialog.mdx
@@ -316,6 +316,7 @@ export default function Demo() {
       <pre>{JSON.stringify(postData, null, 2)}</pre>
       <HvDialog
         disableBackdropClick
+        fullHeight
         open={open}
         onClose={() => setOpen(false)}
         aria-describedby={descId}
@@ -337,7 +338,7 @@ export default function Demo() {
             <DialogForm />
           </form>
         </HvDialogContent>
-        <HvDialogActions>
+        <HvDialogActions className="sticky bottom-0">
           <HvButton type="submit" form="create-post">
             Create
           </HvButton>
diff --git a/packages/core/src/Dialog/Actions/Actions.styles.tsx b/packages/core/src/Dialog/Actions/Actions.styles.tsx
index 5ae998dab8..a40f858579 100644
--- a/packages/core/src/Dialog/Actions/Actions.styles.tsx
+++ b/packages/core/src/Dialog/Actions/Actions.styles.tsx
@@ -3,12 +3,12 @@ import { theme } from "@hitachivantara/uikit-styles";
 
 export const { staticClasses, useClasses } = createClasses("HvDialog-Action", {
   root: {
-    margin: "0",
+    margin: 0,
     padding: theme.space.sm,
+    backgroundColor: "inherit",
     borderTop: `3px solid ${theme.colors.atmo2}`,
     height: 65,
     maxHeight: 65,
-    flex: 1,
   },
   fullscreen: { position: "fixed", width: "100%", bottom: 0, left: 0 },
   spacing: {
diff --git a/packages/core/src/Dialog/Actions/Actions.tsx b/packages/core/src/Dialog/Actions/Actions.tsx
index 566b2b5832..85da334985 100644
--- a/packages/core/src/Dialog/Actions/Actions.tsx
+++ b/packages/core/src/Dialog/Actions/Actions.tsx
@@ -30,7 +30,7 @@ export const HvDialogActions = (props: HvDialogActionsProps) => {
     ...others
   } = useDefaultProps("HvDialogActions", props);
   const context = useDialogContext();
-  const fullscreen = fullScreenProp ?? context.fullscreen;
+  const fullScreen = fullScreenProp ?? context.fullScreen;
 
   const { classes, cx } = useClasses(classesProp);
 
@@ -38,7 +38,7 @@ export const HvDialogActions = (props: HvDialogActionsProps) => {
     <MuiDialogActions
       className={className}
       classes={{
-        root: cx(classes.root, { [classes.fullscreen]: fullscreen }),
+        root: cx(classes.root, { [classes.fullscreen]: fullScreen }),
         spacing: classes.spacing,
       }}
       {...others}
diff --git a/packages/core/src/Dialog/Content/Content.styles.tsx b/packages/core/src/Dialog/Content/Content.styles.tsx
index 78823c712d..576bc9ec1f 100644
--- a/packages/core/src/Dialog/Content/Content.styles.tsx
+++ b/packages/core/src/Dialog/Content/Content.styles.tsx
@@ -3,13 +3,11 @@ import { theme } from "@hitachivantara/uikit-styles";
 
 export const { staticClasses, useClasses } = createClasses("HvDialog-Content", {
   root: {
-    padding: `0 ${theme.space.sm} ${theme.space.sm} ${theme.space.sm}`,
-    flex: "none",
+    padding: theme.spacing(0, "sm", "sm"),
   },
   textContent: {
     marginLeft: "42px",
     paddingRight: "62px",
-    flex: 1,
     overflowY: "auto",
   },
 });
diff --git a/packages/core/src/Dialog/Dialog.stories.tsx b/packages/core/src/Dialog/Dialog.stories.tsx
index cdef78ccb5..0fecd3c753 100644
--- a/packages/core/src/Dialog/Dialog.stories.tsx
+++ b/packages/core/src/Dialog/Dialog.stories.tsx
@@ -48,14 +48,6 @@ export const Main: StoryObj<HvDialogProps> = {
     docs: {
       source: { code: MainStoryRaw },
     },
-    ...setupChromatic(["DS3 dawn", "DS5 dawn", "Pentaho+ dawn"]),
-  },
-  // For visual testing and a11y
-  play: async ({ canvasElement }) => {
-    const canvas = within(canvasElement);
-    const button = canvas.getByRole("button", { name: /open dialog/i });
-    await userEvent.click(button);
-    await expect(canvas.getByRole("dialog")).toBeInTheDocument();
   },
   render: (args) => <MainStory {...args} />,
 };
@@ -105,6 +97,14 @@ export const Form: StoryObj<HvDialogProps> = {
           Accessibility-wise, `HvDialogTitle` automatically labels the dialog. A `aria-describedby` can be used to describe the content.",
       },
     },
+    ...setupChromatic(["DS3 dawn", "DS5 dawn", "Pentaho+ dawn"]),
+  },
+  // For visual testing and a11y
+  play: async ({ canvasElement }) => {
+    const canvas = within(canvasElement);
+    const button = canvas.getByRole("button", { name: /create a post/i });
+    await userEvent.click(button);
+    await expect(canvas.getByRole("dialog")).toBeInTheDocument();
   },
   decorators: [(Story) => <div style={{ minHeight: 440 }}>{Story()}</div>],
   render: () => <FormStory />,
diff --git a/packages/core/src/Dialog/Dialog.styles.tsx b/packages/core/src/Dialog/Dialog.styles.tsx
index fb66422c82..2ce07d21c6 100644
--- a/packages/core/src/Dialog/Dialog.styles.tsx
+++ b/packages/core/src/Dialog/Dialog.styles.tsx
@@ -11,6 +11,9 @@ export const { staticClasses, useClasses } = createClasses("HvDialog", {
     borderRadius: theme.radii.round,
   },
   fullscreen: {},
+  fullHeight: {
+    height: "100%",
+  },
   closeButton: {
     padding: 0,
     minWidth: "auto",
diff --git a/packages/core/src/Dialog/Dialog.tsx b/packages/core/src/Dialog/Dialog.tsx
index c659315d32..9a2d84467b 100644
--- a/packages/core/src/Dialog/Dialog.tsx
+++ b/packages/core/src/Dialog/Dialog.tsx
@@ -30,6 +30,8 @@ export interface HvDialogProps
   maxWidth?: MuiDialogProps["maxWidth"];
   /** @inheritdoc */
   fullWidth?: MuiDialogProps["fullWidth"];
+  /** If true, the dialog stretches vertically, limited by the margins. @default false */
+  fullHeight?: boolean;
   /**
    * Element id that should be focus when the Dialog opens.
    * Auto-focusing elements can cause usability issues, so this should be avoided.
@@ -63,12 +65,13 @@ export const HvDialog = (props: HvDialogProps) => {
     onClose,
     firstFocusable,
     buttonTitle = "Close",
-    fullscreen = false,
+    fullHeight,
+    fullscreen: fullScreen = false, // TODO: rename to `fullScreen` in v6
     disableBackdropClick = false,
     ...others
   } = useDefaultProps("HvDialog", props);
 
-  const { classes, css, cx } = useClasses(classesProp);
+  const { classes, cx } = useClasses(classesProp);
   const { rootId } = useTheme();
 
   const measuredRef = useCallback(() => {
@@ -78,17 +81,24 @@ export const HvDialog = (props: HvDialogProps) => {
     element?.focus();
   }, [firstFocusable]);
 
-  const contextValue = useMemo(() => ({ fullscreen }), [fullscreen]);
+  const contextValue = useMemo(() => ({ fullScreen }), [fullScreen]);
 
   return (
     <MuiDialog
       container={getElementById(rootId)}
-      className={cx(classes.root, className)}
-      classes={{ container: css({ position: "relative" }) }}
+      className={className}
+      classes={{
+        root: classes.root,
+        paper: cx(classes.paper, classes[variant!], {
+          [classes.fullHeight]: fullHeight,
+          [classes.statusBar]: !!variant,
+          [classes.fullscreen]: fullScreen,
+        }),
+      }}
       id={id}
       ref={measuredRef}
       open={open}
-      fullScreen={fullscreen}
+      fullScreen={fullScreen}
       onClose={(event, reason) => {
         // `disableBackdropClick` property was removed in MUI5
         // and we want to maintain that functionality
@@ -103,27 +113,13 @@ export const HvDialog = (props: HvDialogProps) => {
           },
         },
       }}
-      PaperProps={{
-        classes: {
-          root: cx(
-            css({ position: "absolute" }),
-            classes.paper,
-            variant && cx(classes.statusBar, classes[variant]),
-            {
-              [classes.fullscreen]: fullscreen,
-            },
-          ),
-        },
-      }}
       {...others}
     >
-      <HvIconButton
+      <HvIconButton<"button">
         title={buttonTitle}
         id={setId(id, "close")}
         className={classes.closeButton}
-        onClick={(event: React.MouseEvent<HTMLButtonElement>) =>
-          onClose?.(event, undefined)
-        }
+        onClick={(event) => onClose?.(event, undefined)}
       >
         <Close />
       </HvIconButton>
diff --git a/packages/core/src/Dialog/Title/Title.styles.tsx b/packages/core/src/Dialog/Title/Title.styles.tsx
index 398df651e2..4179c82e94 100644
--- a/packages/core/src/Dialog/Title/Title.styles.tsx
+++ b/packages/core/src/Dialog/Title/Title.styles.tsx
@@ -3,21 +3,18 @@ import { theme } from "@hitachivantara/uikit-styles";
 
 export const { staticClasses, useClasses } = createClasses("HvDialog-Title", {
   root: {
-    fontFamily: theme.fontFamily.body, // override MUI font
     padding: theme.space.sm,
-    margin: 0,
-  },
-  fullscreen: {},
-  messageContainer: {
+    marginRight: 32, // close icon padding
+    flex: "0 0 auto",
     display: "flex",
     alignItems: "center",
+    gap: theme.space.xs,
   },
-  textWithIcon: {
-    marginLeft: theme.space.xs,
-    // 32px is the icon width
-    marginRight: `calc(32px + ${theme.space.xs})`,
-  },
-  titleText: {
-    ...theme.typography.title4,
-  },
+  fullscreen: {},
+  /** @deprecated use `classes.root` instead  */
+  messageContainer: {},
+  // TODO: consider deprecating
+  textWithIcon: {},
+  /** @deprecated use `classes.root` instead */
+  titleText: {},
 });
diff --git a/packages/core/src/Dialog/Title/Title.tsx b/packages/core/src/Dialog/Title/Title.tsx
index 524e18cca2..2942bb4f2b 100644
--- a/packages/core/src/Dialog/Title/Title.tsx
+++ b/packages/core/src/Dialog/Title/Title.tsx
@@ -1,11 +1,9 @@
-import MuiDialogTitle, {
-  DialogTitleProps as MuiDialogTitleProps,
-} from "@mui/material/DialogTitle";
 import {
   useDefaultProps,
   type ExtractNames,
 } from "@hitachivantara/uikit-react-utils";
 
+import { HvTypography, HvTypographyProps } from "../../Typography";
 import { iconVariant } from "../../utils/iconVariant";
 import { useDialogContext } from "../context";
 import { staticClasses, useClasses } from "./Title.styles";
@@ -22,7 +20,7 @@ export type HvDialogTitleVariant =
   | "default";
 
 export interface HvDialogTitleProps
-  extends Omit<MuiDialogTitleProps, "variant" | "classes"> {
+  extends Omit<HvTypographyProps, "variant" | "classes"> {
   /** Variant of the dialog title. */
   variant?: HvDialogTitleVariant;
   /** Controls if the associated icon to the variant should be shown. */
@@ -40,40 +38,33 @@ export const HvDialogTitle = (props: HvDialogTitleProps) => {
     children,
     variant = "default",
     showIcon = true,
-    customIcon = null,
+    customIcon,
     ...others
   } = useDefaultProps("HvDialogTitle", props);
 
-  const { classes, css, cx } = useClasses(classesProp);
-  const { fullscreen } = useDialogContext();
-
-  const isString = typeof children === "string";
+  const { classes, cx } = useClasses(classesProp);
+  const { fullScreen } = useDialogContext();
 
   const icon = customIcon || (showIcon && iconVariant(variant));
 
   return (
-    <MuiDialogTitle
+    <HvTypography
+      component="h2"
+      variant="title4"
       className={cx(
-        !fullscreen && css({ flex: 1 }),
         classes.root,
+        classes.messageContainer,
         {
-          [classes.fullscreen]: fullscreen,
+          [classes.fullscreen]: fullScreen,
+          [classes.textWithIcon]: icon,
+          [classes.titleText]: typeof children === "string",
         },
         className,
       )}
       {...others}
     >
-      <div className={classes.messageContainer}>
-        {icon}
-        <div
-          className={cx({
-            [classes.textWithIcon]: !!icon,
-            [classes.titleText]: isString,
-          })}
-        >
-          {children}
-        </div>
-      </div>
-    </MuiDialogTitle>
+      {icon}
+      {children}
+    </HvTypography>
   );
 };
diff --git a/packages/core/src/Dialog/context.ts b/packages/core/src/Dialog/context.ts
index 9eaea5fefd..d1aab2d207 100644
--- a/packages/core/src/Dialog/context.ts
+++ b/packages/core/src/Dialog/context.ts
@@ -1,5 +1,5 @@
 import { createContext, useContext } from "react";
 
-export const DialogContext = createContext({ fullscreen: false });
+export const DialogContext = createContext({ fullScreen: false });
 
 export const useDialogContext = () => useContext(DialogContext);
diff --git a/packages/core/src/Dialog/stories/FormStory.tsx b/packages/core/src/Dialog/stories/FormStory.tsx
index 0913ba9578..c6d7e2e226 100644
--- a/packages/core/src/Dialog/stories/FormStory.tsx
+++ b/packages/core/src/Dialog/stories/FormStory.tsx
@@ -39,6 +39,7 @@ export const FormStory = () => {
       <pre>{JSON.stringify(postData, null, 2)}</pre>
       <HvDialog
         disableBackdropClick
+        fullHeight
         open={open}
         onClose={() => setOpen(false)}
         aria-describedby={descId}
@@ -60,7 +61,10 @@ export const FormStory = () => {
             <DialogForm />
           </form>
         </HvDialogContent>
-        <HvDialogActions>
+        <HvDialogActions
+          // submit/cancel always visible
+          style={{ position: "sticky", bottom: 0 }}
+        >
           <HvButton type="submit" form="create-post">
             Create
           </HvButton>