I believe you deleted an </section> call on this page. I have bolded where it should go.
<noscript>
<iframe height="922" style="border:none; background:transparent; overflow:hidden; width:100%;"
id="fb_iframe" src="smwmform/smwmform.html">
<a href="smwmform.php" title="smwmform">Check out my CoffeeCup Form</a>
</iframe>
</noscript></p>
</section>
<footer>
<p>© We're a growing firm. We look forward to meeting you and your team and helping you define your goals, develop solutions - and realise them! So what are you waiting for, let's meet?" </p>
<p>Registered Office 12 Lychgate, Higher Walton, Warrington, Cheshire, WA4 6TF</p>
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="services.html">Services</a></li>
<li><a href="about.html">About</a></li>
<li><a href="contact.html">Contact</a></li>
</ul>
</footer>
</section>
<!-- end mainRight -->