Web development agency
Engineering that holds up: modern frameworks, clean code, proper hosting, and integrations with the systems you already run.
Web development for UK businesses
A web development agency should leave you with something that keeps working after launch day. We build websites and web applications in Next.js and TypeScript, host them on modern edge infrastructure, and connect them to the tools your business already depends on. The result is fast for visitors, readable for search engines, and maintainable by any competent developer, not just us.
Our work ranges from content-led websites to full products. We built Atopia, a 3D platform for immersive virtual museum exhibitions, on the web and in VR. We also built and run Adlogue, an ad intelligence web app that finds the Meta ads winning in a category and explains why. The same standards apply to a ten-page company site: tested code, clear structure and no shortcuts that cost you later.
What we build
- Custom websitesBuilt in Next.js for speed and search.
- Web applicationsPortals, dashboards and booking tools.
- IntegrationsCRM, accounting, stock and booking systems.
- HeadlessA CMS your team likes, a front end your customers do.
Web development services on modern foundations
Our web development services start with choosing tools you will not outgrow. For most sites that means Next.js, server-rendered pages that load quickly and work without JavaScript, and a headless CMS your team can edit comfortably. Pages are built to hit Core Web Vitals targets on mobile, meet WCAG 2.2 AA accessibility, and give search engines clean HTML and structured data from the first deploy. Every change goes through version control and a preview link before it reaches the live site, so updates can be checked before anyone sees them.
- Next.js and TypeScript with server-side rendering
- Headless CMS options chosen around how your team edits
- Automated checks for speed, accessibility and broken links
Custom web development and integrations
Most projects connect to something already in place. Custom web development lets the website talk directly to your CRM, accounting package, booking system, stock database or internal API, instead of relying on fragile plugins. A quote form can create a deal in your CRM. A product page can show live stock. A booking can check real availability. We document every integration so you know what connects to what. Where a system has no usable API, we look at secure alternatives, such as scheduled imports or a small middleware service, rather than asking staff to copy data by hand.
Web design and development under one roof
When design and development sit with different suppliers, details get lost in the handover. We do both, so the person designing a page knows how it will be built, and the developer knows why each element is there. That keeps projects simpler for you: one plan, one point of contact, and one team responsible for how the site looks, performs and ranks. It also means the site is ready for what comes next, whether that is marketing automation, an AI assistant or a customer portal.
- You own the code, content and accounts from day one
- Code kept in a repository you control, with documentation
- Ongoing support available after launch, or a clean handover
What’s included
- Technical audit of your current site and systems
- Architecture and platform recommendation in writing
- Front-end and back-end build in Next.js and TypeScript
- Headless CMS setup and editor training
- Integrations with CRM, accounting, booking or stock systems
- Hosting, deployment pipeline and monitoring setup
- Performance, accessibility and SEO checks before launch
- Code repository and documentation handed to you
Not sure what you need yet? Get a free audit and a clear plan, with no obligation.
Get my free auditHow it works
- AuditWhat you have today, what competitors do, and what’s costing you enquiries.
- PlanPages, features, searches to target, integrations and a fixed written quote.
- DesignDesigned in the browser, so you review the real thing, not a picture of it.
- BuildFast, accessible, secure code, connected to the tools you already use.
- GrowLaunch, tracking and monthly improvements from real data.
Related work
Precision FMWebsite for a UK, Ireland and Gulf facilities management group: service lines, coverage map, instant quotes, English and Arabic.
websiteFMbilingual
Atopia3D platform for immersive virtual museum exhibitions, on the web and in VR, built without code.
3D experienceplatformlive
AdlogueAd intelligence web app: finds the Meta ads winning in a category and explains why they work.
marketing toolweb appAI
Questions
What does a web development agency do?
It designs the technical side of a website or web application: choosing the platform, writing the code, connecting it to other systems, and hosting it securely. We also handle design, so the whole build sits with one team. For you, that means fewer handovers, one plan and one point of contact from first call to launch.
How much does custom web development cost in the UK?
It depends on scope: the number of templates, the integrations involved and any custom features. The free audit ends with a written quote that sets out exactly what is included, what is optional, and what ongoing costs such as hosting and licences to expect.
What technology do you build with?
Mostly Next.js and TypeScript on modern edge hosting, with a headless CMS where you need to edit content. We choose tools you won't outgrow.
Do you work with existing systems?
Yes. Most projects connect to something already in place: a CRM, an accounting package, a booking system or an internal database.
Who owns the code?
You do. The code, content and accounts are yours from day one.
Do you support websites after launch?
Yes. We can look after updates, security patches, monitoring and new features on an ongoing basis. If you have your own developers, we hand over with documentation instead, and stay available for questions while they settle in.
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Find out what to fix, build or automate first
Tell us about your website, the app you have in mind or the work you want off your plate. We’ll review it and send you a clear, practical audit made for your business. Free, no obligation, and yours to keep.
- What’s costing you enquiries on your current site
- Where a custom web app or AI could save your team hours
- The fixes and features that would pay back first
- A clear written quote, only if you want one
Rather email? hello@thirdtab.co.uk