Hello,
Everyone else raised good points and I will be repeating a lot.
To start I think your website design itself is good. Clean, easy to navigate. I think the blues of your banner work well. Not sure on the purple/of your logo. I believe it works but it could be better even using the blue of your Find Out More button.
Agree with others your new website banner adds nothing. Remove it but keep it ready to go for when you have value to add there such as a new partnership, new service, new big client etc. I would remove the 4 dots either side of the notice bar. They look out of place.
I think your banner content could be condensed/simplified. You are getting across what you do but it could be more to the point.
As others have said and I believe this to be the biggest issue with your website. It is not clear which services you provide and you are linking all call to actions to your contact page. So a user will figure out that you provide security, be sent to your contact page and then have to ask themselves or try and workout what specific services you provide. You need to re-focus your website, list your specific services, have CTAs that are specific to what the client wants. E.g linking to your contact page with pre-filled subject if a client clicks enquire about "website security". The button links to contact with the subject:
"I would like to speak about my website security"
Body:
"please list your website here so we can analyse how we can assist you prior to calling you back".
Add a services page to your menu and list out specifically each service you provide along with packages . Each service could have a call to action working in the way I described above.
Workout your single goal of your website. The most important thing you want to achieve. For example lower down your homepage Get A Free Risk Assessment. I would be putting that on your homepage banner:
What We do (less bold button) | Get A Free Risk Assessment (bold button)
What we do linking to your services page which makes it very clear what you provide.
You have your packages lower down which is good but they don't link anywhere assist from the same non-targeted contact us page.
As mentioned your Book a slot on the contact page is linking to a 404 missing page. I would make all 3 of those buttons much smaller bringing focus to your contact page. I would also be tempted to reduce the size/height of your sub banner (Contact Us heading + background).
Your scroll animation is delayed for me. I am scrolling down the page and content is taking a couple of seconds to appear rather than appearing during scrolling.