A Bespoke SEO Agency in London

Web Design London for Businesses That Want Speed, SEO & Sales

Custom Web Development

With a team of expert WordPress developers, AdvertisingDog UK builds websites that load fast, rank better and convert visitors into customers.

From business websites to WooCommerce stores, we create scalable builds designed for growth across London and the UK.

  • WordPress & WooCommerce specialists
  • SEO-ready structure (technical + content)
  • Core Web Vitals & performance optimisation
  • Conversion-focused UX and tracking-ready setup
  • Ongoing support, security and hosting guidance
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Custom Development Without Limitations

Every business has unique requirements. Our approach to custom development focuses on building bespoke functionality, clean backend logic and scalable architecture that supports long-term growth.

We develop custom WordPress solutions and web applications that go beyond templates — focusing on performance, stability and flexibility. Our work is engineered to support complex business logic, integrations and future expansion without technical bottlenecks.

What our custom development focuses on:

  • Custom functionality tailored to your business workflows
  • Clean, maintainable backend logic and code structure
  • Performance-focused development and optimisation
  • Scalable architecture built for future growth
  • Secure, reliable systems with long-term stability
Custom web development process with WordPress code and performance-focused implementation

Key Features of Our Custom Development Services

  • Page Speed & Core Web Vitals

    Fast loading improves user experience, SEO and ad performance. We optimise your site to be lightweight, stable and responsive.

  • User-Friendly UX

    Clear navigation, strong calls-to-action and a layout built to guide visitors to enquiry, booking or checkout.

  • Bug-Free Builds

    WordPress sites that avoid plugin chaos. The result: fewer bugs, faster load times, reduced maintenance costs, and a site that just works.

  • Fast Servers & Smart Hosting

    We recommend or provide hosting infrastructure matched to your needs — whether you're running a corporate site or a high-traffic WooCommerce store. Fast, stable, and built to scale.

Custom WordPress Development for Advanced Functionality

We specialize in custom WordPress and WooCommerce because they deliver what serious businesses need: speed, flexibility, and complete platform ownership. From local service sites to national e-commerce operations, we engineer clean, growth-ready systems built to perform.

Core technical foundations:

  • Strategic WooCommerce architecture for product discovery and conversions
  • Full analytics integration: GA4, event tracking, and conversion pixels
  • SEO-optimized structure with schema markup and internal linking
  • Performance engineering: optimized assets, lean code, intelligent caching
Custom WordPress development workspace showing website interface and user interaction

Web Application Development & Integrations

For more complex requirements, we develop scalable web applications, dashboards and API integrations that connect systems, automate workflows and support data-driven operations.

Performance, Scalability & Long-Term Reliability

A slow website loses leads and sales. We optimise WordPress performance to improve loading times, user experience and Core Web Vitals — especially on mobile, where most traffic happens.

Some important page speed optimisations

  • Site Code Optimisation

    We reduce unnecessary scripts, remove bloat, and streamline the theme and plugin stack so your site runs efficiently.

  • File & Media Compression

    Images are optimised (WebP where appropriate), fonts are handled properly and heavy assets are reduced without losing quality.

  • Server & Caching Optimisation

    We fine-tune caching, compression, and server settings based on your hosting environment to improve real-world speed.

Website installation & setup services

Need a clean WordPress setup, theme installation or a safe staging environment? We install and configure your website properly so it works smoothly from day one.

  • WordPress installation & configuration
  • Theme installation and core setup
  • Plugin setup (only what you need)
  • Updates, backups and safe staging workflows
Website security monitoring and protection for WordPress and WooCommerce sites
Website security monitoring and protection for WordPress and WooCommerce sites

Website security you can trust

Security is not optional — especially for business websites and WooCommerce stores. We harden WordPress installations, reduce attack surfaces and apply best practices that keep your website and customer data protected.

  • SSL setup and secure configuration
  • WordPress hardening and malware protection
  • Firewall and login security measures
  • DDoS risk reduction (hosting-level where possible)

Lightning-fast hosting options

If your hosting is holding you back, we’ll recommend (or provide) a setup that matches your website’s needs — from fast business sites to WooCommerce stores with product feeds and ads traffic.

  • 99% High uptime & reliable infrastructure
  • NVMe SSD performance for faster load times
  • Free SSL and performance-ready configuration

We’re Set.
Are you in?

Ready to build a website that helps you grow?

Share what you need, and we’ll come back with a straightforward proposal and upfront pricing. We’ll tell you what matters, what doesn’t, and what’s going to make a real difference.

Book a Free call