diff --git a/Gulpfile.ts b/Gulpfile.ts
index e34bc2b5c26..bc5eb3a2d38 100644
--- a/Gulpfile.ts
+++ b/Gulpfile.ts
@@ -585,7 +585,7 @@ gulp.task(specMd, /*help*/ false, [word2mdJs], (done) => {
 
 gulp.task("generate-spec", "Generates a Markdown version of the Language Specification", [specMd]);
 
-gulp.task("clean", "Cleans the compiler output, declare files, and tests", [], () => {
+gulp.task("clean", "Cleans the compiler output, declare files, and tests", ["clean:private-packages"], () => {
     return del([builtDirectory]);
 });
 
@@ -611,7 +611,7 @@ gulp.task("LKG", "Makes a new LKG out of the built js files", ["clean", "dontUse
     return runSequence("LKGInternal", "VerifyLKG");
 });
 
-function compilePrivatePackage(packageName) {
+function compilePrivatePackage(packageName: string) {
     const project = tsc.createProject(`scripts/${packageName}/tsconfig.json`, getCompilerSettings({}, /*useBuiltCompiler*/ false));
     return project.src()
         .pipe(sourcemaps.init())
@@ -621,6 +621,10 @@ function compilePrivatePackage(packageName) {
         .pipe(gulp.dest(`scripts/${packageName}/dist`));
 }
 
+function cleanPrivatePackage(packageName: string) {
+    return del([`scripts/${packageName}/dist`]);
+}
+
 gulp.task("typemock", () => compilePrivatePackage("typemock"));
 gulp.task("vfs-core", () => compilePrivatePackage("vfs-core"));
 gulp.task("vfs-errors", () => compilePrivatePackage("vfs-errors"));
@@ -629,6 +633,14 @@ gulp.task("vfs", ["vfs-core", "vfs-errors", "vfs-path", "typemock"], () => compi
 gulp.task("harness-core", ["vfs-core"], () => compilePrivatePackage("harness-core"));
 gulp.task("private-packages", ["typemock", "vfs", "harness-core"]);
 
+gulp.task("clean:typemock", () => cleanPrivatePackage("typemock"));
+gulp.task("clean:vfs-core", () => cleanPrivatePackage("vfs-core"));
+gulp.task("clean:vfs-errors", () => cleanPrivatePackage("vfs-errors"));
+gulp.task("clean:vfs-path", ["clean:vfs-core", "clean:vfs-errors"], () => cleanPrivatePackage("vfs-path"));
+gulp.task("clean:vfs", ["clean:vfs-core", "clean:vfs-errors", "clean:vfs-path", "clean:typemock"], () => cleanPrivatePackage("vfs"));
+gulp.task("clean:harness-core", ["clean:vfs-core"], () => cleanPrivatePackage("harness-core"));
+gulp.task("clean:private-packages", ["clean:typemock", "clean:vfs", "clean:harness-core"]);
+
 // Task to build the tests infrastructure using the built compiler
 const run = path.join(builtLocalDirectory, "run.js");
 gulp.task(run, /*help*/ false, [servicesFile, tsserverLibraryFile, "private-packages"], () => {
diff --git a/Jakefile.js b/Jakefile.js
index ddae2021484..7d0e28b80e8 100644
--- a/Jakefile.js
+++ b/Jakefile.js
@@ -738,7 +738,7 @@ task("default", ["local"]);
 
 // Cleans the built directory
 desc("Cleans the compiler output, declare files, and tests");
-task("clean", function () {
+task("clean", ["clean-private-packages"], function () {
     jake.rmRf(builtDirectory);
 });
 
@@ -804,7 +804,7 @@ task("LKG", ["clean", "release", "local"].concat(libraryTargets), function () {
 directory(builtLocalDirectory);
 
 function privatePackage(packageName, prereqs) {
-    task(packageName, prereqs, function () {
+    task(packageName, prereqs || [], function () {
         var startCompileTime = mark();
         execCompiler(/*useBuiltCompiler*/ false, ["-p", `scripts/${packageName}/tsconfig.json`], function (error) {
             if (error) {
@@ -818,6 +818,10 @@ function privatePackage(packageName, prereqs) {
     }, { async: true });
 }
 
+function cleanPrivatePackage(packageName) {
+    jake.rmRf(`scripts/${packageName}/dist`);
+}
+
 privatePackage("typemock");
 privatePackage("vfs-core");
 privatePackage("vfs-errors");
@@ -826,6 +830,14 @@ privatePackage("vfs", ["vfs-path", "typemock"]);
 privatePackage("harness-core", ["vfs-core"]);
 task("private-packages", ["typemock", "vfs", "harness-core"]);
 
+task("clean-typemock", () => cleanPrivatePackage("typemock"));
+task("clean-vfs-core", () => cleanPrivatePackage("vfs-core"));
+task("clean-vfs-errors", () => cleanPrivatePackage("vfs-errors"));
+task("clean-vfs-path", ["clean-vfs-core", "clean-vfs-errors"], () => cleanPrivatePackage("vfs-path"));
+task("clean-vfs", ["clean-vfs-path", "clean-typemock"], () => cleanPrivatePackage("vfs"));
+task("clean-harness-core", ["clean-vfs-core"], () => cleanPrivatePackage("harness-core"));
+task("clean-private-packages", ["clean-typemock", "clean-vfs", "clean-harness-core"]);
+
 // Task to build the tests infrastructure using the built compiler
 var run = path.join(builtLocalDirectory, "run.js");
 compileFile(
diff --git a/package.json b/package.json
index cf109417b9f..b3bdec3be5d 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,8 @@
         "@types/source-map-support": "latest",
         "@types/through2": "latest",
         "@types/xml2js": "^0.4.0",
+        "@typescript/vfs-core": "file:scripts/vfs-core",
+        "@typescript/vfs-errors": "file:scripts/vfs-errors",
         "@typescript/vfs-path": "file:scripts/vfs-path",
         "@typescript/vfs": "file:scripts/vfs",
         "@typescript/harness-core": "file:scripts/harness-core",