WordPress Web
Design & Development
We build WordPress websites for businesses that need more than a template. Custom themes & plugins, WooCommerce and ongoing maintenance handled in-house by our team in Bangkok.
We build WordPress themes from scratch around your brand. No pre-built templates, no limitations. Every design decision is made around how your site needs to work.
Need functionality that doesn't exist yet? We write custom WordPress plugins to do exactly what your business requires, from a custom flow to a 3rd party integration.
Custom WooCommerce stores built for real traffic. We handle the design, payment gateway setup, inventory management, shipping rules and everything in between.
Slow WordPress sites lose visitors and ranking. We audit your site, fix all issues and get your site loading fast. Caching, compression, database cleanup and code optimization.
Plugins break, updates conflict and sites get attacked. We handle all of it with ongoing maintenance contracts that cover security patches, backups and technical support.
Moving from another platform or a different host? We handle the full migration of all files including database, redirects and testing with no data loss and minimal downtime.
Most WordPress sites are assembled rather than engineered—relying on heavy off-the-shelf themes, bloated page builders like Elementor or Divi, and dozens of conflicting plugins that hurt Core Web Vitals and SEO. We design and develop custom WordPress websites written in clean code with purpose-built functionality, technical SEO structure, and server-level Nginx/Redis caching. Whether you need a corporate website, a high-converting WooCommerce store, a multilingual Thai/English portal, or custom post types and API integrations, every project is delivered on a clear scope and fixed price.
Every WordPress build is handled 100% in-house by our developers and UI/UX designers in Bangkok. You communicate directly with the engineers writing your theme and plugin code—ensuring faster turnaround, cleaner security, and an intuitive admin dashboard your team can easily manage without developer dependency. We have delivered custom WordPress platforms for businesses across healthcare, hospitality, e-commerce, finance, and B2B services.
Our WordPress clients include companies in Bangkok, across Thailand, and internationally. We work with growing SMEs launching a new brand presence as well as enterprises migrating legacy platforms or scaling multi-site WordPress installations. Whether you are building a new website from scratch, redesigning an outdated site, or looking for ongoing WordPress maintenance & support, we engineer your site for long-term speed, security, and search performance.
Businesses across Thailand and internationally trust our team to build and maintain their WordPress sites. Fixed pricing, clear timelines and direct access to the developers doing the work. Based in Bangkok.
Sierra IT Group Co., Ltd.
99 Soi Thian Thale 28,
Bangkhuntian Chailtalay Road,
Tha Kham, Bang Khun Thian
Bangkok 10150
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