diff --git a/gulpfile.js b/gulpfile.js
index 7d0feaad9fc..a0962e1a387 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,167 +1,16 @@
-const fs = require('fs');
-const path = require('path');
-const gulp = require('gulp');
-const ts = require('gulp-typescript');
-const sourcemaps = require('gulp-sourcemaps');
-const clean = require('gulp-clean');
-const deleteEmpty = require('delete-empty');
-const childProcess = require('child_process');
-const log = require('fancy-log');
-const clc = require('cli-color');
-const promiseSeries = require('promise.series');
-
-const { promisify } = require('util');
-
-const exec = promisify(childProcess.exec);
-
-const SAMPLE = path.join(__dirname, 'sample');
+'use strict';
+/**
+ * Load the TypeScript compiler, then load the TypeScript gulpfile which simply loads all
+ * the tasks. The tasks are really inside tools/gulp/tasks.
+ */
 
-const packages = {
-  common: ts.createProject('packages/common/tsconfig.json'),
-  core: ts.createProject('packages/core/tsconfig.json'),
-  microservices: ts.createProject('packages/microservices/tsconfig.json'),
-  websockets: ts.createProject('packages/websockets/tsconfig.json'),
-  testing: ts.createProject('packages/testing/tsconfig.json'),
-  'platform-express': ts.createProject(
-    'packages/platform-express/tsconfig.json',
-  ),
-  'platform-fastify': ts.createProject(
-    'packages/platform-fastify/tsconfig.json',
-  ),
-  'platform-socket.io': ts.createProject(
-    'packages/platform-socket.io/tsconfig.json',
-  ),
-  'platform-ws': ts.createProject('packages/platform-ws/tsconfig.json'),
-};
-const modules = Object.keys(packages);
-const source = 'packages';
-const distId = process.argv.indexOf('--dist');
-const dist = distId < 0 ? source : process.argv[distId + 1];
-
-gulp.task('default', function() {
-  modules.forEach(module => {
-    gulp.watch(
-      [`${source}/${module}/**/*.ts`, `${source}/${module}/*.ts`],
-      [module],
-    );
-  });
-});
-
-gulp.task('copy-misc', function() {
-  return gulp
-    .src(['Readme.md', 'LICENSE', '.npmignore'])
-    .pipe(gulp.dest(`${source}/common`))
-    .pipe(gulp.dest(`${source}/core`))
-    .pipe(gulp.dest(`${source}/microservices`))
-    .pipe(gulp.dest(`${source}/websockets`))
-    .pipe(gulp.dest(`${source}/testing`))
-    .pipe(gulp.dest(`${source}/platform-fastify`))
-    .pipe(gulp.dest(`${source}/platform-express`))
-    .pipe(gulp.dest(`${source}/platform-ws`))
-    .pipe(gulp.dest(`${source}/platform-socket.io`));
-});
-
-gulp.task('clean:output', function() {
-  return gulp
-    .src(
-      [`${source}/**/*.js`, `${source}/**/*.d.ts`, `${source}/**/*.js.map`],
-      {
-        read: false,
-      },
-    )
-    .pipe(clean());
-});
-
-gulp.task('clean:dirs', function(done) {
-  deleteEmpty.sync(`${source}/`);
-  done();
-});
-
-gulp.task('clean:bundle', gulp.series('clean:output', 'clean:dirs'));
-
-modules.forEach(module => {
-  gulp.task(module, () => {
-    return packages[module]
-      .src()
-      .pipe(packages[module]())
-      .pipe(gulp.dest(`${dist}/${module}`));
-  });
-});
-
-modules.forEach(module => {
-  gulp.task(module + ':dev', () => {
-    return packages[module]
-      .src()
-      .pipe(sourcemaps.init())
-      .pipe(packages[module]())
-      .pipe(
-        sourcemaps.mapSources(sourcePath => './' + sourcePath.split('/').pop()),
-      )
-      .pipe(sourcemaps.write('.'))
-      .pipe(gulp.dest(`${dist}/${module}`));
-  });
-});
-
-gulp.task('common:dev', gulp.series(modules.map(module => module + ':dev')));
-gulp.task('build', gulp.series(modules));
-gulp.task('build:dev', gulp.series('common:dev'));
-
-function getFolders(dir) {
-  return fs.readdirSync(dir).filter(function(file) {
-    return fs.statSync(path.join(dir, file)).isDirectory();
-  });
-}
-
-const getDirs = base => getFolders(base).map(path => `${base}/${path}`);
-
-gulp.task('install:samples', async () => {
-  const directories = getDirs(SAMPLE);
-
-  const promises = directories.map(async dir => {
-    const dirName = dir.replace(__dirname, '');
-    log.info(`Installing dependencies of ${clc.magenta(dirName)}`);
-    try {
-      await exec(`npm install --no-shrinkwrap --prefix ${dir}`);
-      log.info(`Finished installing ${clc.magenta(dirName)}`);
-    } catch (err) {
-      log.error(`Failed installing dependencies of ${dirName}`);
-      throw err;
-    }
-  });
-
-  return await promiseSeries(promises);
-});
-
-gulp.task('build:samples', async () => {
-  const directories = getDirs(SAMPLE);
+const path = require('path');
 
-  const promises = directories.map(async dir => {
-    const dirName = dir.replace(__dirname, '');
-    log.info(`Building ${clc.magenta(dirName)}`);
-    try {
-      await exec(`npm run build --prefix ${dir}`);
-      log.info(`Finished building ${clc.magenta(dirName)}`);
-    } catch (err) {
-      log.error(`Failed building ${clc.magenta(dirName)}:`);
-      if (err.stdout) {
-        log.error(err.stdout);
-      }
-      throw err;
-    }
-  });
+const projectDir = __dirname;
+const tsconfigPath = path.join(projectDir, 'tools/gulp/tsconfig.json');
 
-  return await promiseSeries(promises);
+require('ts-node').register({
+  project: tsconfigPath
 });
 
-gulp.task('move', function() {
-  const examplesDirs = getDirs('sample');
-  const integrationDirs = getDirs('integration');
-  const directories = examplesDirs.concat(integrationDirs);
-
-  let stream = gulp.src(['node_modules/@nestjs/**/*']);
-
-  directories.forEach(dir => {
-    stream = stream.pipe(gulp.dest(dir + '/node_modules/@nestjs'));
-  });
-  return stream;
-});
+require('./tools/gulp/gulpfile');
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 1c1992f8cfb..60a8e4ccded 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -549,6 +549,16 @@
         "@types/node": "*"
       }
     },
+    "@types/glob-stream": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/@types/glob-stream/-/glob-stream-6.1.0.tgz",
+      "integrity": "sha512-RHv6ZQjcTncXo3thYZrsbAVwoy4vSKosSWhuhuQxLOTv74OJuFQxXkmUuZCr3q9uNBEVCvIzmZL/FeRNbHZGUg==",
+      "dev": true,
+      "requires": {
+        "@types/glob": "*",
+        "@types/node": "*"
+      }
+    },
     "@types/graphql": {
       "version": "14.2.3",
       "resolved": "https://registry.npmjs.org/@types/graphql/-/graphql-14.2.3.tgz",
@@ -564,6 +574,17 @@
         "@types/koa": "*"
       }
     },
+    "@types/gulp": {
+      "version": "4.0.6",
+      "resolved": "https://registry.npmjs.org/@types/gulp/-/gulp-4.0.6.tgz",
+      "integrity": "sha512-0E8/iV/7FKWyQWSmi7jnUvgXXgaw+pfAzEB06Xu+l0iXVJppLbpOye5z7E2klw5akXd+8kPtYuk65YBcZPM4ow==",
+      "dev": true,
+      "requires": {
+        "@types/undertaker": "*",
+        "@types/vinyl-fs": "*",
+        "chokidar": "^2.1.2"
+      }
+    },
     "@types/http-assert": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/@types/http-assert/-/http-assert-1.5.0.tgz",
@@ -674,6 +695,41 @@
         "@types/node": "*"
       }
     },
+    "@types/undertaker": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@types/undertaker/-/undertaker-1.2.2.tgz",
+      "integrity": "sha512-j4iepCSuY2JGW/hShVtUBagic0klYNFIXP7VweavnYnNC2EjiKxJFeaS9uaJmAT0ty9sQSqTS1aagWMZMV0HyA==",
+      "dev": true,
+      "requires": {
+        "@types/undertaker-registry": "*"
+      }
+    },
+    "@types/undertaker-registry": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@types/undertaker-registry/-/undertaker-registry-1.0.1.tgz",
+      "integrity": "sha512-Z4TYuEKn9+RbNVk1Ll2SS4x1JeLHecolIbM/a8gveaHsW0Hr+RQMraZACwTO2VD7JvepgA6UO1A1VrbktQrIbQ==",
+      "dev": true
+    },
+    "@types/vinyl": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@types/vinyl/-/vinyl-2.0.3.tgz",
+      "integrity": "sha512-hrT6xg16CWSmndZqOTJ6BGIn2abKyTw0B58bI+7ioUoj3Sma6u8ftZ1DTI2yCaJamOVGLOnQWiPH3a74+EaqTA==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/vinyl-fs": {
+      "version": "2.4.11",
+      "resolved": "https://registry.npmjs.org/@types/vinyl-fs/-/vinyl-fs-2.4.11.tgz",
+      "integrity": "sha512-2OzQSfIr9CqqWMGqmcERE6Hnd2KY3eBVtFaulVo3sJghplUcaeMdL9ZjEiljcQQeHjheWY9RlNmumjIAvsBNaA==",
+      "dev": true,
+      "requires": {
+        "@types/glob-stream": "*",
+        "@types/node": "*",
+        "@types/vinyl": "*"
+      }
+    },
     "@types/ws": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/@types/ws/-/ws-6.0.1.tgz",
@@ -12706,12 +12762,6 @@
       "resolved": "https://registry.npmjs.org/promise-breaker/-/promise-breaker-5.0.0.tgz",
       "integrity": "sha512-mgsWQuG4kJ1dtO6e/QlNDLFtMkMzzecsC69aI5hlLEjGHFNpHrvGhFi4LiK5jg2SMQj74/diH+wZliL9LpGsyA=="
     },
-    "promise.series": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/promise.series/-/promise.series-0.2.0.tgz",
-      "integrity": "sha1-LMfr6Vn8OmYZwEq029yeRS2GS70=",
-      "dev": true
-    },
     "protobufjs": {
       "version": "6.8.8",
       "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.8.8.tgz",
diff --git a/package.json b/package.json
index 22f78108745..b2d4ba758d9 100644
--- a/package.json
+++ b/package.json
@@ -84,6 +84,7 @@
     "@types/cors": "2.8.5",
     "@types/express": "4.17.0",
     "@types/fastify-cors": "2.1.0",
+    "@types/gulp": "^4.0.6",
     "@types/kafka-node": "2.0.8",
     "@types/mocha": "5.2.7",
     "@types/node": "10.14.13",
@@ -121,7 +122,6 @@
     "nodemon": "1.19.1",
     "nyc": "14.1.1",
     "prettier": "1.18.2",
-    "promise.series": "0.2.0",
     "sinon": "7.3.2",
     "sinon-chai": "3.3.0",
     "socket.io-client": "2.2.0",
diff --git a/sample/02-gateways/tsconfig.json b/sample/02-gateways/tsconfig.json
index 52723fb1a50..084f892e42b 100644
--- a/sample/02-gateways/tsconfig.json
+++ b/sample/02-gateways/tsconfig.json
@@ -11,7 +11,8 @@
     "target": "es6",
     "sourceMap": true,
     "outDir": "./dist",
-    "baseUrl": "./"
+    "baseUrl": "./",
+    "skipLibCheck": true
   },
   "exclude": ["node_modules"]
 }
diff --git a/sample/05-sql-typeorm/tsconfig.json b/sample/05-sql-typeorm/tsconfig.json
index 52723fb1a50..084f892e42b 100644
--- a/sample/05-sql-typeorm/tsconfig.json
+++ b/sample/05-sql-typeorm/tsconfig.json
@@ -11,7 +11,8 @@
     "target": "es6",
     "sourceMap": true,
     "outDir": "./dist",
-    "baseUrl": "./"
+    "baseUrl": "./",
+    "skipLibCheck": true
   },
   "exclude": ["node_modules"]
 }
diff --git a/sample/15-mvc/tsconfig.json b/sample/15-mvc/tsconfig.json
index 52723fb1a50..084f892e42b 100644
--- a/sample/15-mvc/tsconfig.json
+++ b/sample/15-mvc/tsconfig.json
@@ -11,7 +11,8 @@
     "target": "es6",
     "sourceMap": true,
     "outDir": "./dist",
-    "baseUrl": "./"
+    "baseUrl": "./",
+    "skipLibCheck": true
   },
   "exclude": ["node_modules"]
 }
diff --git a/sample/17-mvc-fastify/tsconfig.json b/sample/17-mvc-fastify/tsconfig.json
index 52723fb1a50..084f892e42b 100644
--- a/sample/17-mvc-fastify/tsconfig.json
+++ b/sample/17-mvc-fastify/tsconfig.json
@@ -11,7 +11,8 @@
     "target": "es6",
     "sourceMap": true,
     "outDir": "./dist",
-    "baseUrl": "./"
+    "baseUrl": "./",
+    "skipLibCheck": true
   },
   "exclude": ["node_modules"]
 }
diff --git a/tools/gulp/config.ts b/tools/gulp/config.ts
new file mode 100644
index 00000000000..73c2ee991f9
--- /dev/null
+++ b/tools/gulp/config.ts
@@ -0,0 +1,8 @@
+import { getDirs } from './util/task-helpers';
+
+// All paths are related to the base dir
+export const source = 'packages';
+export const integrationPath = 'integration';
+export const samplePath = 'sample';
+
+export const packagePaths = getDirs(source);
\ No newline at end of file
diff --git a/tools/gulp/gulpfile.ts b/tools/gulp/gulpfile.ts
new file mode 100644
index 00000000000..de25610c22a
--- /dev/null
+++ b/tools/gulp/gulpfile.ts
@@ -0,0 +1,5 @@
+import './tasks/copy-misc';
+import './tasks/clean';
+import './tasks/packages';
+import './tasks/move';
+import './tasks/samples';
diff --git a/tools/gulp/tasks/clean.ts b/tools/gulp/tasks/clean.ts
new file mode 100644
index 00000000000..19b8322ebca
--- /dev/null
+++ b/tools/gulp/tasks/clean.ts
@@ -0,0 +1,33 @@
+import { task, src, series } from 'gulp';
+import { source } from '../config';
+import * as clean from 'gulp-clean';
+import * as deleteEmpty from 'delete-empty';
+
+/**
+ * Cleans the build output assets from the packages folders
+ */
+function cleanOutput() {
+  return src(
+    [
+      `${source}/**/*.js`,
+      `${source}/**/*.d.ts`,
+      `${source}/**/*.js.map`,
+      `${source}/**/*.d.ts.map`,
+    ],
+    {
+      read: false,
+    },
+  ).pipe(clean());
+}
+
+/**
+ * Cleans empty dirs
+ */
+function cleanDirs(done: () => void) {
+  deleteEmpty.sync(`${source}/`);
+  done();
+}
+
+task('clean:output', cleanOutput);
+task('clean:dirs', cleanDirs);
+task('clean:bundle', series('clean:output', 'clean:dirs'));
diff --git a/tools/gulp/tasks/copy-misc.ts b/tools/gulp/tasks/copy-misc.ts
new file mode 100644
index 00000000000..8c3091f1164
--- /dev/null
+++ b/tools/gulp/tasks/copy-misc.ts
@@ -0,0 +1,18 @@
+import { task, src, dest } from 'gulp';
+import { packagePaths } from '../config';
+
+/**
+ * Copies assets like Readme.md or LICENSE from the project base path
+ * to all the packages.
+ */
+function copyMisc(): NodeJS.ReadWriteStream {
+  const miscFiles = src(['Readme.md', 'LICENSE', '.npmignore']);
+  // Since `dest()` does not take a string-array, we have to append it
+  // ourselves
+  return packagePaths.reduce(
+    (stream, packagePath) => stream.pipe(dest(packagePath)),
+    miscFiles,
+  );
+}
+
+task('copy-misc', copyMisc);
diff --git a/tools/gulp/tasks/move.ts b/tools/gulp/tasks/move.ts
new file mode 100644
index 00000000000..5058a4d86f6
--- /dev/null
+++ b/tools/gulp/tasks/move.ts
@@ -0,0 +1,23 @@
+import { task, src, dest } from 'gulp';
+import { getDirs } from '../util/task-helpers';
+import { samplePath, integrationPath } from '../config';
+import { join } from 'path';
+
+/**
+ * Moves the compiled nest files into the
+ * `samples/*` and `integration/*` dirs.
+ */
+function move() {
+  const samplesDirs = getDirs(samplePath);
+  const integrationDirs = getDirs(integrationPath);
+  const directories = samplesDirs.concat(integrationDirs);
+
+  const distFiles = src(['node_modules/@nestjs/**/*']);
+
+  return directories.reduce(
+    (distFile, dir) => distFile.pipe(dest(join(dir, '/node_modules/@nestjs'))),
+    distFiles,
+  );
+}
+
+task('move', move);
diff --git a/tools/gulp/tasks/packages.ts b/tools/gulp/tasks/packages.ts
new file mode 100644
index 00000000000..a125943c419
--- /dev/null
+++ b/tools/gulp/tasks/packages.ts
@@ -0,0 +1,78 @@
+import { source, packagePaths } from '../config';
+import { task, watch, series, dest } from 'gulp';
+import { createProject } from 'gulp-typescript';
+import * as sourcemaps from 'gulp-sourcemaps';
+import * as log from 'fancy-log';
+
+// Has to be a hardcoded object due to build order
+const packages = {
+  'common': createProject('packages/common/tsconfig.json'),
+  'core': createProject('packages/core/tsconfig.json'),
+  'microservices': createProject('packages/microservices/tsconfig.json'),
+  'websockets': createProject('packages/websockets/tsconfig.json'),
+  'testing': createProject('packages/testing/tsconfig.json'),
+  'platform-express': createProject('packages/platform-express/tsconfig.json'),
+  'platform-fastify': createProject('packages/platform-fastify/tsconfig.json'),
+  'platform-socket.io': createProject(
+    'packages/platform-socket.io/tsconfig.json',
+  ),
+  'platform-ws': createProject('packages/platform-ws/tsconfig.json'),
+};
+
+const modules = Object.keys(packages);
+
+const distId = process.argv.indexOf('--dist');
+const dist = distId < 0 ? source : process.argv[distId + 1];
+
+/**
+ * Watches the packages/* folder and
+ * builds the package on file change
+ */
+function defaultTask() {
+  log.info('Watching files..');
+  modules.forEach(packageName => {
+    watch(
+      [`${source}/${packageName}/**/*.ts`, `${source}/${packageName}/*.ts`],
+      series(packageName),
+    );
+  });
+}
+
+/**
+ * Builds the given package
+ * @param packageName The name of the package
+ */
+function buildPackage(packageName: string) {
+  return packages[packageName]
+    .src()
+    .pipe(packages[packageName]())
+    .pipe(dest(`${dist}/${packageName}`));
+}
+
+/**
+ * Builds the given package and adds sourcemaps
+ * @param packageName The name of the package
+ */
+function buildPackageDev(packageName: string) {
+  return packages[packageName]
+    .src()
+    .pipe(sourcemaps.init())
+    .pipe(packages[packageName]())
+    .pipe(
+      sourcemaps.mapSources(
+        (sourcePath: string) => './' + sourcePath.split('/').pop(),
+      ),
+    )
+    .pipe(sourcemaps.write('.', {}))
+    .pipe(dest(`${dist}/${packageName}`));
+}
+
+modules.forEach(packageName => {
+  task(packageName, () => buildPackage(packageName));
+  task(`${packageName}:dev`, () => buildPackageDev(packageName));
+});
+
+task('common:dev', series(modules.map(packageName => `${packageName}:dev`)));
+task('build', series(modules));
+task('build:dev', series('common:dev'));
+task('default', defaultTask);
diff --git a/tools/gulp/tasks/samples.ts b/tools/gulp/tasks/samples.ts
new file mode 100644
index 00000000000..05245f77dd5
--- /dev/null
+++ b/tools/gulp/tasks/samples.ts
@@ -0,0 +1,58 @@
+import { resolve } from 'path';
+import { promisify } from 'util';
+import * as childProcess from 'child_process';
+
+import { task } from 'gulp';
+
+import * as log from 'fancy-log';
+import * as clc from 'cli-color';
+
+import { getDirs } from '../util/task-helpers';
+import { samplePath } from '../config';
+
+const exec = promisify(childProcess.exec);
+
+/**
+ * Installs all the npm packages in the
+ * `samples/*` folder
+ */
+async function installSamples() {
+  const directories = getDirs(samplePath);
+
+  for await (const dir of directories) {
+    const dirName = dir.replace(resolve(__dirname, '../../../'), '');
+    log.info(`Installing dependencies of ${clc.magenta(dirName)}`);
+    try {
+      await exec(`npm install --no-shrinkwrap --prefix ${dir}`);
+      log.info(`Finished installing ${clc.magenta(dirName)}`);
+    } catch (err) {
+      log.error(`Failed installing dependencies of ${dirName}`);
+      throw err;
+    }
+  }
+}
+
+/**
+ * Builds all the `samples/*`
+ */
+async function buildSamples() {
+  const directories = getDirs(samplePath);
+
+  for await (const dir of directories) {
+    const dirName = dir.replace(__dirname, '');
+    log.info(`Building ${clc.magenta(dirName)}`);
+    try {
+      await exec(`npm run build --prefix ${dir}`);
+      log.info(`Finished building ${clc.magenta(dirName)}`);
+    } catch (err) {
+      log.error(`Failed building ${clc.magenta(dirName)}:`);
+      if (err.stdout) {
+        log.error(err.stdout);
+      }
+      process.exit(1);
+    }
+  }
+}
+
+task('install:samples', async () => await installSamples());
+task('build:samples', async () => await buildSamples());
diff --git a/tools/gulp/tsconfig.json b/tools/gulp/tsconfig.json
new file mode 100644
index 00000000000..6438b3c5aee
--- /dev/null
+++ b/tools/gulp/tsconfig.json
@@ -0,0 +1,25 @@
+{
+  "compilerOptions": {
+    "experimentalDecorators": true,
+    "noUnusedParameters": false,
+    "noUnusedLocals": false,
+    "lib": ["es2015", "dom", "es2016.array.include"],
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "outDir": "../../dist/tools/gulp",
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "noImplicitThis": true,
+    "noEmitOnError": true,
+    "noImplicitAny": false,
+    "target": "es5",
+    "types": [
+      "node"
+    ],
+    "typeRoots": ["./typings", "../../node_modules/@types/"],
+    "baseUrl": ".",
+  },
+  "files": [
+    "gulpfile.ts"
+  ]
+}
diff --git a/tools/gulp/util/task-helpers.ts b/tools/gulp/util/task-helpers.ts
new file mode 100644
index 00000000000..1f92706c7f3
--- /dev/null
+++ b/tools/gulp/util/task-helpers.ts
@@ -0,0 +1,14 @@
+import { readdirSync, statSync } from 'fs';
+import { join } from 'path';
+
+function isDirectory(path: string) {
+  return statSync(path).isDirectory();
+}
+
+export function getFolders(dir: string) {
+  return readdirSync(dir).filter(file => isDirectory(join(dir, file)));
+}
+
+export function getDirs(base: string) {
+  return getFolders(base).map(path => `${base}/${path}`);
+}