diff --git a/src/Helm.php b/src/Helm.php
index 5151059..b710feb 100644
--- a/src/Helm.php
+++ b/src/Helm.php
@@ -2,10 +2,15 @@
 
 namespace RenokiCo\PhpHelm;
 
+use Illuminate\Support\Traits\Macroable;
 use Symfony\Component\Process\Process;
 
 class Helm
 {
+    use Macroable {
+        __call as macroCall;
+    }
+
     /**
      * The process instance to run Helm from.
      *
@@ -51,7 +56,6 @@ public static function addRepo(string $name, string $url, array $extraFlags = []
     /**
      * Initiate a helm repo update command.
      *
-     * @param  array  $extraArgs
      * @param  array  $extraFlags
      * @param  array  $envs
      * @return \RenokiCo\PhpHelm\Helm
@@ -61,6 +65,34 @@ public static function repoUpdate(array $extraFlags = [], array $envs = [])
         return static::call('repo', ['update'], $extraFlags, $envs);
     }
 
+    /**
+     * Initiate a helm install command.
+     *
+     * @param  string  $releaseName
+     * @param  string  $chart
+     * @param  array  $extraFlags
+     * @param  array  $envs
+     * @return \RenokiCo\PhpHelm\Helm
+     */
+    public static function install(string $releaseName, string $chart, array $extraFlags = [], array $envs = [])
+    {
+        return static::call('install', [$releaseName, $chart], $extraFlags, $envs);
+    }
+
+    /**
+     * Initiate a helm upgrade command.
+     *
+     * @param  string  $releaseName
+     * @param  string  $chart
+     * @param  array  $extraFlags
+     * @param  array  $envs
+     * @return \RenokiCo\PhpHelm\Helm
+     */
+    public static function upgrade(string $releaseName, string $chart, array $extraFlags = [], array $envs = [])
+    {
+        return static::call('upgrade', [$releaseName, $chart], $extraFlags, $envs);
+    }
+
     /**
      * Change the default path for helm CLI.
      *
@@ -91,18 +123,6 @@ public function __construct(string $action, array $params = [], array $flags = [
         $this->process = new Process($command, null, $envs);
     }
 
-    /**
-     * Proxy the call to the process instance.
-     *
-     * @param  string  $method
-     * @param  array  $params
-     * @return mixed
-     */
-    public function __call(string $method, array $params)
-    {
-        return $this->process->{$method}(...$params);
-    }
-
     /**
      * Compile an array of flags to helm-supported flags.
      *
@@ -133,4 +153,20 @@ protected function compileFlags(array $flags): array
 
         return $compiledFlags;
     }
+
+    /**
+     * Proxy the call to the process instance.
+     *
+     * @param  string  $method
+     * @param  array  $params
+     * @return mixed
+     */
+    public function __call(string $method, array $params)
+    {
+        if (static::hasMacro($method)) {
+            return $this->macroCall($method, $params);
+        }
+
+        return $this->process->{$method}(...$params);
+    }
 }
diff --git a/tests/HelmTest.php b/tests/HelmTest.php
index 5995d5e..30eeef0 100644
--- a/tests/HelmTest.php
+++ b/tests/HelmTest.php
@@ -29,4 +29,51 @@ public function test_helm_repo_update()
 
         $this->assertTrue($process->isSuccessful());
     }
+
+    public function test_helm_repo_install()
+    {
+        Helm::addRepo('bitnami', 'https://charts.bitnami.com/bitnami')->run();
+        Helm::repoUpdate()->run();
+
+        $process = Helm::install(
+            'release-1',
+            'bitnami/postgresql',
+            ['--debug' => true]
+        );
+
+        $process->run();
+
+        dump($process->getCommandLine());
+        dump($process->getOutput());
+
+        $this->assertTrue($process->isSuccessful());
+    }
+
+    public function test_helm_repo_upgrade()
+    {
+        Helm::addRepo('bitnami', 'https://charts.bitnami.com/bitnami')->run();
+        Helm::repoUpdate()->run();
+
+        $process = Helm::upgrade(
+            'release-2',
+            'bitnami/postgresql',
+            ['--install' => true, '--debug' => true]
+        );
+
+        $process->run();
+
+        dump($process->getCommandLine());
+        dump($process->getOutput());
+
+        $this->assertTrue($process->isSuccessful());
+    }
+
+    public function test_helm_repo_macro()
+    {
+        Helm::macro('test', function ($var) {
+            return $var;
+        });
+
+        $this->assertEquals('123', Helm::test('123'));
+    }
 }