Custom websites
Fast, mobile-first websites designed around your brand and built to turn visitors into enquiries. SEO-ready structure, strong Core Web Vitals and an easy CMS so you can edit content yourself.
Web development company in London
Web Development Company in London
Websites that load fast.
Web apps that do real work.
Terioat Infotech Ltd builds custom websites, web applications and customer portals for UK businesses, from London firms to agencies that need extra development capacity. Fixed-scope quotes, a UK contract and full source code handed over at the end.
- Written approach and indicative cost in 2 days
- 100% code and IP assigned to you
- UK contract and GBP invoicing
- NDA first for agency partners
Why bespoke
Bespoke web development for UK businesses
Off-the-shelf website builders are fine until your business needs something they cannot do: a customer login area, a booking system connected to your calendar, a quote calculator, or a website that talks to your CRM and accounting software.
That is where we come in. Terioat Infotech Ltd designs and builds websites and web applications around how your business actually works. Whether you need a fast marketing website, a custom portal for your customers, or a rebuild of a site another agency left behind, our team plans it properly, builds it to modern standards and hands it over with documentation your own team can use.
What we build
Web development services
From a five-page business website to a full web platform, one accountable team.
Web applications and portals
Customer portals, booking systems, quote calculators, dashboards and internal tools, built as secure web apps your team and customers log in to from any device.
E-commerce development (Shopify and WooCommerce)
Online stores with UK VAT, shipping zones and payment gateways set up correctly, plus custom features, product filters and integrations with your stock system.
WordPress and headless CMS
WordPress websites that are easy to update, or headless CMS builds with a Next.js front end for speed and flexibility.
API and systems integration
Connect your website to the tools you already use: CRMs, accounting software, payment providers, courier services and WhatsApp, so data flows automatically instead of being typed in twice.
Website rebuilds and takeovers
Slow, outdated or abandoned by a previous developer? We audit the existing site, fix what is worth keeping and rebuild the rest, with SEO redirects in place so you keep your Google rankings.
AI inside your website
Websites with AI built in, where it actually helps
We add AI features when they save time or improve the customer experience, not as a gimmick: website chat assistants trained on your own content, smart search, automatic lead qualification and document processing, using OpenAI, Claude and Gemini. When AI will not genuinely help, we tell you.
Explore AI automationTechnology
Technologies we build with
We choose the stack that suits your project, not the one we happen to prefer.
Process
How we deliver your web project
- 01
Discovery
We learn how your business, customers and existing systems work, and agree what success looks like.
- 02
Scope and quote
Within 2 days of your brief, you receive a written approach, team shape and indicative cost. Then a fixed-scope statement of work.
- 03
Design
Wireframes and visual designs in Figma, reviewed with you before any code is written.
- 04
Development
We build in short sprints with regular demos, so you see progress every week, not just at the end.
- 05
Testing and launch
Cross-browser, mobile, speed and security testing, then a managed launch with SEO redirects and monitoring.
- 06
Handover and support
Full source code, documentation and training, plus optional ongoing support and new features.
Industries
Industries we work with
Legal firms
Practice websites with service pages, appointment booking and client reviews.
Removals and logistics
Quote request systems, service-area pages and booking flows.
Professional services
Lead-generating websites for accountants, consultants and agencies.
E-commerce and retail
Online stores with UK payments, VAT and shipping.
Agencies (white-label)
Development capacity under your brand, under NDA.
Recent work
Recent web development projects
Family law · Chelmsford
Sheryl Perry Solicitors
Live site for a family-law practice covering divorce, children arrangements and financial settlements, with appointment booking and client reviews.
Visit site
Ways to work with us
Three ways to work with us
Fixed-scope project
A clear statement of work, fixed price and timeline. Best for new websites and defined web apps.
Dedicated developers
Vetted developers embedded in your sprints on a monthly rolling basis, with daily UK-hours overlap.
White-label for agencies
We build, you deliver under your brand. NDA first; we never appear in front of your client.
Why us
Why UK businesses choose Terioat Infotech Ltd
UK contract, GBP invoicing
A UK company with a UK contract, so there is no cross-border paperwork.
You own everything
Full source code, infrastructure and IP are assigned to you on completion. No lock-in.
Named people, not a ticket queue
A named account lead in London and named engineers on your project.
Built to be found
Every site ships with clean SEO structure, fast load times and schema markup.
UK GDPR-aware
Data handling built with UK GDPR in mind, with DPAs available on request.
FAQ
Web development FAQs
Cost, timelines, ownership and how we take over existing sites.
How much does a website cost in London?
It depends on the number of pages, features and integrations. A business website costs much less than a custom web application. Terioat Infotech Ltd sends a written approach and indicative cost within 2 days of your brief, followed by a fixed quote with no hidden costs.
How long does web development take?
A business website usually takes 3 to 5 weeks, an e-commerce store 4 to 8 weeks, and a custom web application 8 to 16 weeks, depending on scope. You get a clear timeline before work begins.
What is the difference between web design and web development?
Web design is how your website looks and feels: layout, colours and user journeys. Web development is building it so it works: the code, CMS, database, forms, payments and integrations. Terioat Infotech Ltd handles both with one team.
Do you only work with businesses in London?
No. We are London-based and work with clients across the UK, including Chelmsford, Essex and beyond. Most projects run remotely with video calls, and we meet in person when it helps.
Will I own the website and the code?
Yes. Full source code, infrastructure and intellectual property are assigned to you on completion, along with documentation, so you are never locked in to us.
Can you take over a website built by another developer?
Yes. We audit the existing code, hosting and SEO, fix urgent issues first, then improve or rebuild the site in stages without disrupting your business.
Can I update the website myself?
Yes. We build on an easy-to-use CMS such as WordPress, Shopify or a headless CMS, and train your team to update pages, products and blog posts.
Do you provide support after launch?
Yes. We offer ongoing support covering updates, security, backups, speed improvements and new features, on a monthly plan or as needed.
Do you offer white-label web development for agencies?
Yes. We work under your brand and under NDA, and we never contact your clients directly.
Get a quote
Tell us what you need built
Share your idea, your existing website or a rough brief. Within 2 days you will get a written approach, team shape and indicative cost. No pitch deck, no obligation.