We provide WordPress development services for organisations that need more than a short-term build. We design and engineer WordPress systems that are secure, maintainable and built for long-term performance, control and evolution.
As part of our broader website development services, we work across a wide range of WordPress environments, from legacy builds through to complex custom implementations.
WordPress development involves the design, build and ongoing evolution of websites and platforms using the WordPress CMS.
This includes custom theme development, structured content systems, integrations with third-party platforms, performance optimisation, and security hardening.
The goal is not just to launch a site, but to create a reliable, scalable platform that supports your organisation over time. For a breakdown of typical pricing, see our guide to website development costs.
We design and develop custom WordPress websites with a focus on structure, flexibility and long-term maintainability. This includes tailored content models, reusable components and intuitive editing experiences aligned to real workflows.
We connect WordPress with CRMs, internal systems and third-party platforms, ensuring your website supports real business processes rather than operating in isolation.
Performance, security and stability are built in from the outset, including optimisation, monitoring, and risk-aware architecture decisions.
We implement structured content systems that give your team control without sacrificing consistency, performance or maintainability.
We rebuild or refactor existing WordPress platforms where required, improving structure, performance and long-term reliability.
We ensure core technical SEO elements are built in from the outset, supporting indexing, performance and long-term visibility.
We configure and manage hosting environments aligned to the needs of the platform, including staging environments, deployment workflows and performance tuning to support reliable releases and ongoing development.
We build WordPress platforms with accessibility and compliance in mind, including alignment with WCAG standards where required, ensuring your website is usable, inclusive and meets organisational or regulatory expectations.
We manage content migrations and data transitions as part of WordPress projects, ensuring content, assets and structured data are accurately transferred and validated. This includes mapping legacy systems, preserving SEO value and maintaining content integrity during platform changes.
We don’t just build from scratch.
We regularly take over and improve existing WordPress websites, including those built with page builders such as Elementor or Divi, legacy themes, or custom implementations.
Our focus is on improving structure, performance and maintainability, regardless of how the site was originally built. If you’re working with an existing platform, a website health check can help identify technical risks, performance issues and opportunities before committing to redevelopment.
We design and build WordPress platforms that can evolve over time, avoiding fragile setups that require frequent rebuilds.
Clear separation between content, presentation and functionality reduces risk and simplifies ongoing development.
We prioritise usable, structured CMS experiences over unrestricted page builder control, ensuring content remains consistent and maintainable.
WordPress is designed to work as part of a broader system, integrating cleanly with CRMs, internal tools and external platforms.
Development decisions are made with long-term risk in mind, ensuring future changes can be introduced safely.
“We have worked with Mainstay for ongoing support and maintenance and two major projects. We have no hesitation in recommending their services. They act as an extension of our business, keeping our commercial goals and needs in mind and continuing to evolve our ways of working to meet all of our many project needs. ”Chelsey Quartermain – Head of Marketing, HunterMoss
Fairhaven Homes is a well-established Victorian home builder with 25 display locations and a diverse portfolio of tailored home designs.
WordPress is a powerful and flexible platform, but it’s not always the right solution.
In many cases, it provides the ideal balance of flexibility, usability and cost. In others, particularly where workflows, integrations or functionality become more complex, a custom application may be more appropriate.
We assess each project based on long-term requirements, ensuring the platform choice supports your organisation’s needs over time. Where required, this can extend into custom web applications and platforms.
WordPress development doesn’t stop at launch.
Many clients continue working with us through our website support and website maintenance services, ensuring their platform remains secure, stable and continues to improve over time.
Working with us means you have a highly technical, expert development team at your fingertips, to engage as you need ad-hoc or to work together on a daily basis. Here’s what you can expect from Mainstay Digital’s website support team:
If you have a backlog of requirements or need ongoing support, we’ll set you up with your own job board in Clickup.
You can even have direct access and a dedicated channel to chat with our team.
We offer 12 month warranty on projects, as well as a money back guarantee period to prove our ability, give you peace of mind, and zero risk.
Costs vary depending on scope, complexity and integrations. For a detailed breakdown, see our guide to website development costs.
We can work with existing page builder-based sites and improve them where required. For new builds, we take a more structured approach focused on performance, maintainability and long-term control.
Yes. With the right architecture and development approach, WordPress can support complex, high-traffic and integration-heavy platforms.
Yes. Many clients continue working with us through our website support and website maintenance services.
Yes. We regularly take over and improve existing WordPress platforms, including legacy builds and sites developed by other agencies.
Arrange your free discovery session at a time that suits you.
We’ll explore your requirements, goals and current platform.
We review your existing site and provide a structured assessment.
With a clear direction in place, we help you build, improve and grow your platform over time.
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