Moving wordpress / redirecting

Having a little trouble getting the the wordpress to redirect to the wp-blog-header.php like I normally do. Really all im looking for it it to say chesapeakecontrols.com not chesapeakecontrols.com/wp when the first browse to the index file.

I have this working fine here with the same code.
Here
https://radioranchrottweilers.com/
and
Here
https://aerostaticband.com/

how ever I can get it to work on this site for some reason a little stumped
https://chesapeakecontrols.com/indexTEST.php

<?php
/**
 * Front to the WordPress application. This file doesn't do anything, but loads
 * wp-blog-header.php which does and tells WordPress to load the theme.
 *
 * @package WordPress
 */

/**
 * Tells WordPress to load the WordPress theme and output it.
 *
 * @var bool
 */
define('WP_USE_THEMES', true);

/** Loads the WordPress Environment and Template */
require( dirname( __FILE__ ) . '/wp/wp-blog-header.php' );