Web design and development services that win customers
Ecommerce website development, B2B websites and custom web apps for UK businesses
From a new company website to a large ecommerce store, our web developers build fast, secure, SEO-ready sites on the platform that suits your business, then stay on to support and grow them.
Signs your website is holding you back
If any of these sound familiar, we can help.
It is slow
Pages take seconds to load, mobile visitors leave and Google ranks you lower.
It is hard to use on mobile
Most UK visitors browse on their phone. A desktop-first site loses them.
Every change needs a developer
Your team cannot update pages, products or offers without waiting days.
It does not convert
Visitors arrive but do not enquire or buy, because the journey is unclear.
It does not connect to your tools
Orders, stock, CRM and email live in separate systems that do not talk to each other.
It is outdated or insecure
Old themes, plugins and versions create security risks and break features.
Our web development services
Everything you need to build, launch and grow, from one team.
Ecommerce website development
Online stores on Shopify, Magento, WooCommerce, PrestaShop, BigCommerce and Shopware.
Website design
Clean, conversion-focused UI/UX design for desktop and mobile.
B2B website design
Websites and trade portals for B2B companies, with quote forms, price lists and gated catalogues.
Custom web apps
Bespoke web applications built with React, Node.js and Python.
Migrations & replatforming
Move to a new platform without losing data, SEO rankings or sales.
Integrations
ERP, CRM, payment, shipping and marketing integrations through APIs.
Speed & performance
Core Web Vitals, hosting and caching for fast, stable websites.
Support & maintenance
Updates, security, backups and fixes after launch.
Our web development process
A clear, step-by-step plan, so you always know what we are doing and why.
Discovery
We learn about your business, customers and goals before writing a line of code.
Plan & quote
A clear scope, timeline, milestones and an itemised quote.
Design
Wireframes and designs focused on your brand and on conversion.
Development
Clean, scalable code built on the right platform, with regular updates.
Testing & launch
Testing on every device and browser, SEO-safe redirects and a monitored go-live.
Support & growth
Ongoing support, maintenance and improvements after launch.
Live websites we have worked on
Real client projects. Click any card to visit the site.
Aroma Sutras
Shopify homepage redesign, new brand story pages and product page updates.
- Homepage redesign
- Brand pages
- Product pages
Quattro Technik
Shopware 6 store build for a German retailer, with ongoing content and technical work.
- Store build
- Content
- Technical support
DTF Distributors
SEO and conversion-rate work on a Magento 2 store selling DTF printing supplies.
- SEO
- Conversion (CRO)
IQ Biologix
BigCommerce online store.
- Store build
MyRoof AI
Custom AI-powered web application.
- AI-powered web app
- Custom development
LaVivid Hair
PrestaShop online store for a German hair brand.
- Store build
What our clients say
“We needed a new Shopify website and found the team very helpful from the beginning. They worked on the design, structure, mobile experience, and overall functionality. The finished website looks professional and is much easier for our customers to use. Really pleased with the development work.”
“The team helped us with both website development and digital marketing. They were able to understand our business requirements and recommend the right solutions. Their combination of web development, SEO, and advertising knowledge was particularly useful. A reliable agency with excellent communication.”
“Our company needed a new WordPress website with a stronger modern design. The AdvertX development team handled the project from structure to functionality. They also made sure the website was prepared properly for SEO. The final result looks professional and works very well.”
“Our e-commerce website needed both development and SEO support. The team helped us improve the website structure, product pages, and search optimization. They were responsive whenever we had questions or needed adjustments. Overall, a very smooth and professional experience.”
“Our WordPress website needed a complete improvement in terms of design and functionality. The AdvertX team understood our requirements and developed a cleaner, more professional website. They also kept SEO considerations in mind during development. Very pleased with the final website and support.”
“Our business needed a combination of web development, SEO, and online advertising. AdvertX Agency provided support across all three areas and understood our requirements well. They were especially helpful with improving our website and creating a better marketing strategy. Professional team, good communication, and a great overall experience.”
Why choose AdvertX for web development
Experienced developers, plus SEO and ads in-house
Your site is built SEO-ready and conversion-focused, and the same team can grow it with SEO and paid ads after launch.
Real, live client websites
Our work is public. See the portfolio and visit the sites yourself.
One project manager
A single point of contact, clear milestones and honest updates from start to finish.
Support after launch
Maintenance, fixes and new features once your site is live, so it keeps performing.
Web Development FAQs
It depends on the size of the site, the platform and the features you need. After a free call we send a clear, itemised quote so you know exactly what is included.
Most business websites take 2 to 6 weeks. Larger ecommerce stores and custom web apps take longer and are planned in clear milestones.
It depends on your products, budget and team. We work on Shopify, WooCommerce, Magento, PrestaShop, BigCommerce, Shopware, WordPress, Odoo and custom code, so we can recommend what fits rather than one platform for everyone.
Yes. SEO is built in from the start: fast pages, clean URLs, structured data and redirects from your old site.
Yes. We offer ongoing support and maintenance, including updates, security, backups and new features.
Yes. We work with clients across the UK, including London and Manchester, as well as in the USA, France and Germany.
Ready to build something that sells?
Tell us about your project. We will review it for free and send a clear plan and an itemised web development quote.
Prefer email? contact@advertxagency.co.uk