The library

Every case study and article Castle has published.

The complete catalogue — 47 pieces of client work and 217 articles across 13 categories. Copy is taken from the live site; every figure quoted is one the case study publishes.

47Case studies
217Articles
13Categories

Everything here opens on this site. This index is the one place all of it is gathered — the listings show a page at a time, this shows the lot.

Case studies

47 pieces of work, each with the number it published.

£120k+ Revenue per quarter from Google Ads

Preferred Joinery

A Liverpool workshop making bespoke windows, doors and staircases since 1997. Castle's Google Ads now generate more than £120k of revenue a quarter.

£75k Monthly revenue, from £10k

Insulate Your Conservatory

A North Yorkshire conservatory roof specialist turning over £10k a month. A rebuilt website and Meta lead campaigns took it to £75k a month.

£50k Monthly revenue from Google Ads

West Derby Heating & Plumbing

A family-run heating and plumbing business in West Derby. £1,500 a month of Google Ads now generates £50,000 a month in revenue.

Pall Mall Medical

A North West private healthcare provider whose online bookings grew 457% in 2019, with more than 600 new patients a month.

Beverly Hills Wellness & Aesthetics

A Dubai aesthetics clinic with more than 700 leads a month, 17% of them booking, revenue up 87% and two new locations.

Bed Choices

An online bed retailer that went from £10,000 to £60,000 a month in 18 months, with a new website, ads on three platforms and email timed to payday.

CLS Surgical and AmDel Medical

Two sister medical device suppliers with one agency behind both. New websites, brands and product listings, lead generation, SEO and GEO, and sales up 22% year on year.

Alternative Futures Group

A North West care charity with support roles to fill across more than 300 locations. Google Search now brings in around 300 completed job applications a month, at about…

19 Google Ads return on ad spend

Morphy Richards

A heritage appliance brand built on retail, under new ownership. Castle ran its Google Ads at a ROAS of 19 for the online launch and lifted conversion from 0.9% to 3.2%.

£800k From £350k in 20 months

The Laser Boutique

A family-run personalised gift maker with booming peaks and empty months. Selling for birthdays, anniversaries and thank-yous took it from £350k to £800k in 20 months.

30% Revenue growth in three months

Celtic Timber

A Welsh timber merchant stuck on the same revenue for two years. Within three months revenue was up 30%, and the store now makes 127% more than it did in 2024.

£1.1m+ Sales within 15 months

Arabella Designs

A bespoke sofa maker selling £300k a year. A rebuilt Shopify store, Google Ads and Meta Ads took it past £1.1m in sales within 15 months, with months over £130k.

£1.7m Sales in year one

Next Gen Charge

A new home EV charger installer, launched from scratch. Meta lead forms, Google Search and an API into the call centre delivered £1.7m in sales in year one at £5 a lead.

8+ Years working together, since 2018

Clatterbridge Private Clinic

How we made Clatterbridge Private Clinic visible in AI answers about private cancer care in the Northwest.

82% Sales, month-on-month

Fizzy Whiz

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…

126% Sales, last 7 days

Geepas

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…

239% Conversion rate, year on year

Nicholas Charles Fragrances

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…

305% Sales, last 90 days

Oprimaze

Oprimaze is a natural weight loss product in the form of a nasal spray developed to curb your appetite using a chemical compound that releases GPL1. They were a…

44% Conversion rate, 90 days

Home and Garden Extras

Home and Garden Extras is an online store selling gardening supplies and related products. They came to Castle looking for help increasing their overall revenue and…

650% More leads

BiFold Local

BiFold Local are a bifold door manufacturing and installation company based in Liverpool. They supply and install high-quality bifold doors to people throughout the UK.

53.85% Revenue, 2021

Supreme CBD

Supreme CBD are one of the UK’s leading suppliers of high-quality CBD products. Endorsed by athletes, Supreme CBD products are third-party lab tested and CBD content…

43% Sales vs previous year

Steven Brown Art

Steven Brown Art is an online eCommerce art and lifestyle brand, selling a wide range of products depicting paintings from iconic Scottish artist Steven Brown. Steven…

250% Sales, year one

Swan

Swan is a UK-based homeware and appliance brand with a strong British heritage dating back to the 1920s. Castle was required to generate more traffic and increase sales…

163 Pages cited in AI search

HNK Solicitors

HNK Solicitors are a specialist civil litigation firm, based in Liverpool. HNK required a complete rebrand, alongside a brand-new website to facilitate lead generation.

Rebrand Identity and guidelines

DSG Accountants

DSG is one of the North West’s leading independent accountancy and advisory firms for small, medium and larger businesses, private clients who serve the not-for-profit…

Campaigns Bespoke advertising design

Hilton

The prestigious Hilton Hotel, based in Liverpool ONE, asked Castle to develop and design several bespoke advertising campaigns, designed to modernise their existing…

21% Conversion, from 8%

Chemist4U

Chemist4U is an online pharmacy who came to Castle needing a safe, secure, and customer-friendly eCommerce site with an advanced filtering system to enable users to…

11,900% Ecommerce sales, year one

Kays Medical

Kays Medical is a UK-based occupational health provider, national and international trainer, and distributor of bespoke medical services and supplies. They came to…

Collateral Full corporate redesign

Graham Construction

Graham Construction is a long-established UK construction company who work with a range of clients across the public and private sectors. Castle provided Graham…

Farnborough Air Show 2016 launch

Bradfor

Bradfor Ltd are a Northern Ireland based company who specialise in manufacturing bespoke aircraft seat covers as well as several other components. They came to Castle…

120% Sales, 2016 to 2017

Liverpool Business News

Liverpool Business News, formerly YB News, is an online news platform to promote business news to a local and wider audience. They came to Castle for a complete rebrand…

One voice Group-wide rebrand

Hops & Barley

Hops & Barley are a wholesale alcohol and soft drinks supplier who provide a wide range of beverages to trade outlets throughout the North West. Castle were asked to…

80% Of clinical admin automated

Millennium Pharmacy

Millennium Pharmacy is a pharmacy company who came to Castle as they needed an industry-specific web portal designing and building, separate from their high-street…

Monthly Email campaigns

MSB Solicitors

MSB Solicitors is a Liverpool-based full service law firm. They required an email marketing service that included the design, creation and management of their monthly…

120% Sales, 2015 to 2016

Sterling Services

Sterling Services is a northwest based construction company who came to Castle looking for a complete rebrand. They needed to present a unique and bespoke image to stand…

12,000 Subscribers

Shave & Subscribe

Shave & Subscribe is an online subscription service that regularly sends shaving products directly to their customers homes.

150% Sales

Private Label Supplements

Private Label Supplements is an online supplement store that provides a bespoke service for their clients. They came to Castle looking for a complete revamp of their…

35% Above forecast sales

Doctor4U

Doctor4U is an online pharmacy that distributes prescribed medicines to thousands of customers throughout the UK. They required an online eCommerce platform to…

45,000 Instagram, from 3,000

365 Gainz

365 Gainz is an online fitness app offering tailored fitness programmes for a monthly subscription fee. Castle was able to rebrand the business, create a…

200% Donations

Invisible Wounds

Invisible Wounds is a specialist support charity who work with survivors of trauma. They required a highly accessible website and a new online brand identity to increase…

25% New revenue

DMF Wakefield

DMF Wakefield is an online platform that provides and sells over 5000 consumables for a range of workshop services. Castle designed and built DMF Wakefield a new…

37% More leads in one month

Step Forward Homes

Step Forward Homes is a not-for-profit housing company who came to Castle as they needed a marketing agency who could design and build a new easy-to-use website as well…

30+ Liverpool restaurants stocking

Catalan Wines

Catalan Wines are a company who specialise in the distribution of rare and exclusive wines from the Cataluña region of Spain to customers across the UK. Catalan Wines…

Rebrand Full identity

PharmaPac

PharmaPac is a significant turnkey solution provider supporting the unique requirements of some of the worlds largest pharmaceutical, consumer healthcare and veterinary…

150% Sales, 2015 to 2016

Trade Garage Equipment

Trade Garage Equipment is a long-established business that supplies and installs top quality garage equipment to the automotive industry. Castle provided Trade Garage…

20 years Of high-profile projects

ACS Construction

ACS Construction is one of the North West’s leading civil engineering and building contractors. Castle provided them with a complete rebrand which reflected their…

Bespoke Recruitment platform

Kingsley Recruitment

Kingsley Recruitment are property recruitment specialists based in the North West. They came to Castle requiring a completely bespoke recruitment website for their…

Articles

217 articles, by category.

GEO, AEO and AI SEO first — the work that decides whether an assistant names you — then the rest of the archive.

News

57

Marketing

27

SEO

18

Social

18

Web

11

PPC

7

Design

15

GEO

9

Affiliate

8

Events

4

Video

2

The library

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