Web design and development services: websites, ecommerce, web apps and mobile apps
Securovix is a web development agency. UK businesses come to us for web design and development services: custom website development, small business website development, responsive web design and website redesign. We build fast, secure, SEO-ready websites and online stores.
Our ecommerce development covers Shopify development and WooCommerce development, and we also offer WordPress development and React website development. For software, we build custom web applications, SaaS development, customer portal development, business dashboard development and mobile app development, with API integration to the tools you already use.
We also take on website performance optimisation and legacy application modernisation. For web and app development, UK clients meet us online or in person in London, and international clients work with us remotely, including website development for US businesses and app development for US startups.
Securovix develops high-performance websites, ecommerce systems, custom apps and scalable platforms designed to increase conversions and business efficiency.
Everything we build for modern businesses.
From a 3-page brochure site to a multi-tenant SaaS platform.
- Business Websites: WordPress, Wix or fully custom React builds.
- Ecommerce Stores: Shopify, WooCommerce and headless commerce.
- Mobile Apps: iOS & Android with React Native or native code.
- Web Apps & Portals: Dashboards, admin panels, SaaS platforms.
- APIs & Integrations: REST/GraphQL APIs, Stripe, CRM, ERP connectors.
- AI-Powered Features: LLM agents, semantic search, recommendation.
- Performance & Security: Core Web Vitals, OWASP, hardened infra.
- DevOps & CI/CD: GitHub Actions, automated deploys, observability.
- Growth Engineering: A/B testing, analytics, conversion tracking.
How we work
- Discovery: Workshop on goals, audience and technical scope.
- Architecture: Tech stack, data model and API plan.
- Design: UI/UX, prototypes and design system.
- Build: Sprint-based development with weekly demos.
- Launch: QA, deploy, monitoring and handover.
Why Securovix
- Design + engineering in one team: No handoff gaps between UI and code.
- AI-native workflows: Ship faster without losing quality.
- Sprint-based delivery: Weekly demos, transparent progress.
- Conversion-first builds: Performance and CRO baked in from day one.
- Production-grade security: OWASP best practices and code reviews.
- London-based, global delivery: Clients across UK, EU and US.
Questions people ask
How much does a custom website cost?
The cost of a custom website depends on the number of pages and templates, whether it is a brochure site, an ecommerce store or a web application, the integrations it needs (payments, CRM, booking), who provides the content, and any ongoing support or hosting. Securovix quotes each build to its scope after a free 30-minute consultation, so the scope and cost are agreed before work starts.
How long does development take?
It depends on the scope: a small business website is much quicker than an ecommerce store, and a custom web application or mobile app takes longer again. The number of features and integrations, how ready your content is and how quickly feedback comes back all affect the schedule. We work in sprints with regular demos, and you get a schedule with your proposal after the free consultation.
Who owns the code?
You do. You receive the full source code, repository access and documentation.
Can you modernise an existing website?
Yes. We take over existing websites and legacy projects, refactor and modernise the stack, and keep the business running while we do it. That can mean a website redesign, website performance optimisation or a move to a newer platform.
Can you integrate payments, CRM and AI?
Yes. We integrate payment providers such as Stripe, CRM and ERP systems through their APIs, and AI features including chatbots, LLM workflows, semantic search and AI agents, which are core to our stack.
How do international projects work?
International projects run remotely. We agree the scope and plan on a video call, show progress through regular demos and collect feedback online, so you do not need to be in London. Our development clients are across the UK, the EU and the US, and meetings are arranged in UK working hours with times shown in your own zone when you book.
What technologies do you use?
React, Next.js, TanStack Start, Node.js, TypeScript, Shopify, WordPress, React Native, Postgres and Cloudflare.
Do you provide hosting?
We deploy on your preferred infra (Vercel, AWS, Cloudflare). Managed hosting is available as an add-on.
Custom website vs website builder: which is better for my business?
A website builder suits a simple site you want to edit yourself on a small budget, though you are limited to its templates and features. A custom website suits a business that needs its own design, integrations, stronger performance or features a builder cannot offer, and it can grow with the business. Securovix builds with React, Node.js, WordPress, Shopify and Wix, so the consultation can weigh both options.
Web app vs mobile app: which should I build?
A web app runs in the browser on any device, is quicker to update and needs no app store approval, so it suits dashboards, portals and most SaaS products. A mobile app suits products people use on the move every day, or that need phone features such as push notifications, the camera or offline use. Many businesses start with a responsive web app and add a mobile app once they know how customers use it.
How do I choose a remote development agency?
Ask to see projects similar to yours, who will actually write the code, how often you will see working software and how communication works across time zones. Check that you will own the code and repository, and how testing, security and handover are handled. A consultation call is a good way to judge how clearly an agency explains its approach.