Realia is providing basic contact form which is build upon the Webform module. Theme is not using integrated Contact module because of lack functionality and extensibility. On the other hand if you want use default Contact module feel free to enable module. His styling is inheriting from basic form design guide. Anyway the integrated Contact module is not offering a way how to add custom content, so we are recommending to use our implementation.
Below you can see code for well formatted contact page.
<iframe class="map" width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?q=37.440587,-122.139816&num=1&ie=UTF8&ll=37.435681,-122.135696&spn=0.041038,0.077162&t=m&z=14&output=embed"></iframe>
<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>
<div class="row">
<div class="span3">
<h3 class="address">Address</h3>
<p class="content-icon-spacing">
13/2 Elizabeth Street
Melbourne, Australia
</p>
</div>
<div class="span3">
<h3 class="call-us">Call us</h3>
<p class="content-icon-spacing">
1900-CO-WORKER
1800-3322-4453
</p>
</div>
<div class="span3">
<h3 class="email">Email</h3>
<p class="content-icon-spacing">
<a href="mailto:info@byaviators.com">contact management</a>
<a href="mailto:support@byaviators.com">contact support</a>
</p>
</div>
</div>
<h2>We'd love to hear from you. Say us hello!</h2>