Case Study | How Castle Helped HNK Solicitors

HNK Solicitors

How did we help HNK Solicitors?

1. Client

HNK Solicitors are a specialist civil litigation firm, based in Liverpool. They have a team of multi-disciplined lawyers who help clients make compensation claims for a wide range of matters including data breaches, actions against the police, and criminal injuries.

 

2. Problem

HNK Solicitors came to Castle looking for a rebrand and a new website to facilitate lead generation. They also wanted Castle to generate leads for their range of services through paid advertisements through Facebook and PPC.

A Mac with the HNK contact us page featured on display.

3. Solution

Castle designed and developed a brand-new user-friendly website optimised for maximum conversions. We then ran a social advertisement campaign for HNK Solicitors as a way to increase leads and conversions. This campaign was incredibly successful and obtained over 600 new leads for the client in just one month. These leads had an 8% conversion rate, around 48 people. The average case value for each case they took on was £1,000-£5,000. The social ads we created, therefore, led to an income of £60,000 a week in converted sales for the client.

A Macbook laptop with the HNK website displayed on the laptop screen. In the background, a screenshot of a Google search for HNK.

4. Outcome

To achieve these results, we created four different social posts which massively varied in design. We did this so we could see which appealed most to people looking for these kinds of services. After running all four ads for a while, we discovered that the best performing ads were the ones that looked like news articles. Once we knew which was the most successful, we stopped running the other ads and put more of the budget into the best performing one. This led to a 62% increase in leads and a 79% decrease in cost. After just a month of running these advertisements, they generated over 600 leads and cost just £1650. With an 8% conversion rate, this means that each lead, which made them between £1000-£5000, cost them just £33.

The HNK Instagram page displayed on an iPad.

Other Projects

Fizzy Whiz

Ecommerce

Fizzy Whiz is an online retailer selling a vast range of wholesale supplies to small businesses to make their own bath, body and cleaning products. They came to Castle looking for help maximising their sales and achieving consistent growth through ads.

Geepas

Ecommerce

Geepas is a global brand selling a wide range of electrical, homewares, kitchenware and beauty/personal care appliances. They came to Castle looking for help to maximise conversions through their eCommerce store, as well as wanting help to run ads to drive more traffic to their site and increase sales.

Nicholas Charles Fragrances

Ecommerce

Nicholas Charles Fragrances is an online brand offering fragrances inspired by designer scents for an affordable price. They came to Castle looking for help to grow their business. They wanted to maximise sales through their eCommerce website through ads, which would increase their brand awareness, maximise conversions on the site and achieve a good return on investment.

Book an Appointment

Uncategorised

Why working with a full service agency actually gives you faster results in 2025

A smart UK focused blog explaining why full service agencies outperform specialist teams in 2025. Covers cost efficiency, strategy, GEO, Castle’s integrated model and the benefits of having one team manage your entire brand.

Read more

GEO

How to take advantage of GEO in 2026

GEO is quickly replacing SEO as the real driver of online visibility. Instead of chasing search rankings, brands now need to train AI systems to recognise their expertise, quote their answers, and surface their content across Google SGE, ChatGPT, and Perplexity. The brands that understand this shift early will dominate AI search in 2026, because GEO rewards clarity, consistency, and authority. This guide explains how to build a footprint that AI trusts and how to position your business so that generative engines choose you every time a user asks a question.

Read more

Marketing

Ecommerce is Changing Fast, and 2024 Proved It

A smart breakdown of the major ecommerce shifts seen in 2024, from changing customer behaviour and AI driven search to declining loyalty, faster checkouts, and the rise of values based shopping. This analysis explores what these trends mean for brands preparing for 2025 and how to stay competitive in an increasingly fragmented digital landscape.

Read more