Custom web development services
Custom web applications, built properly from the first commit
We design and build custom web applications — customer portals, internal dashboards, SaaS products, booking and membership systems — on React, Next.js and Node.js. Fast, crawlable where it needs to be, and structured so the next developer can work in it.
When a website template stops being enough
Most businesses start with a website builder or an off-the-shelf tool, and that is often the right call. The trouble starts when the business process outgrows it: customers need accounts and dashboards, data has to flow to your CRM and billing, staff need an admin view, and the plug-ins that held it together start conflicting.
Custom web development is the point where you stop configuring someone else's product and build the application your process actually needs. Done well, it is cheaper to run and easier to change than the patchwork it replaces. Done badly, it becomes the next thing you have to rescue — so the architecture matters as much as the screens.
What we build
Customer portals
Accounts, dashboards, documents, bookings and payments for your customers, connected to the systems your team already uses.
Internal dashboards and admin panels
Tools for operations, support and finance teams: search, bulk actions, reports, audit logs and role-based access.
SaaS front ends
Product interfaces for multi-tenant SaaS, built alongside the billing, permissions and integrations behind them.
Membership and booking platforms
Tiered access, gated content, events and checkout flows — including moving them off no-code tools when they hit their limits.
Content-heavy marketing sites
Statically generated sites with structured data, sitemaps, redirects and security headers, fast and easy for non-engineers to update.
Rebuilds and rescues
Taking over an existing web app that has become slow or fragile, stabilising it, and improving it incrementally rather than rewriting by default.
Typical projects
Replacing spreadsheets and email chains
A process that runs on shared spreadsheets and inbox threads becomes a web app with proper records, permissions and history.
Outgrowing a no-code platform
A product built on Bubble or a site builder moves to a maintainable codebase, with real data migrated and reconciled.
Adding a customer-facing layer
Customers get self-service access to orders, documents, invoices or bookings instead of emailing your team.
Adding AI to an existing web app
Search, summaries, document extraction or an assistant built into the application you already run — see AI integration services.
Decisions we make deliberately on every web build
These choices are cheap to get right at the start and expensive to change later.
Rendering strategy per page
Marketing and content pages are statically generated for speed and SEO; account pages are dynamic; caching and revalidation are designed, not discovered.
Access control on the server
Who can see what is enforced in the API and database (for example PostgreSQL row-level security), not just hidden in the interface.
One source of truth per fact
Payments come from the payment provider's webhooks, identity from the auth provider, everything else from your database — no two systems that both think they own a field.
Technical SEO built in
Unique titles and descriptions, canonical URLs, structured data, sitemaps and redirects are part of the build, not a later project.
Performance budgets
Images sized and converted, JavaScript split per route, fonts self-hosted, and pages measured on mid-range mobile devices, not just a fast laptop.
Operable from launch
Error tracking, structured logs and an admin view ship with the first release, so problems are visible before customers report them.
Web applications we have built
Membership platform for a mortgage-industry association: Stripe billing, CRM sync and a Bubble migration
A subscription membership platform — member dashboard, gated content, events, vendor marketplace and a 28-page admin portal — with tiered Stripe billing, a conference ticket checkout and two-way GoHighLevel CRM sync, migrated off a legacy Bubble app onto Next.js and Supabase.
Read the case studyAI integration · MCPConnecting an operations platform to Claude with a remote MCP server
A remote Model Context Protocol server that lets the consultancy's staff run their admin platform by asking Claude — invoicing, scheduling, follow-ups, time entries and contracts — with the same permissions they have in the app.
Read the case studyAI application · Structured LLM outputAI-generated assessments and executive reports for a leadership consultancy
A team-assessment app where admins generate assessment templates from a topic with an LLM, participants answer through share links, and the system writes executive-summary reports.
Read the case studyHow we work
- 1
Discovery
We map users, roles, data and integrations, and agree what the first release must do. You get a written scope and estimate.
- 2
Design
Key flows designed and clickable before development, so changes happen while they are cheap.
- 3
Build in short cycles
Working software on a staging link every one to two weeks, with priorities you control.
- 4
Test and launch
Automated tests on critical flows, a launch checklist covering SEO, security headers and redirects, and monitoring from day one.
- 5
Support and grow
Maintenance, security updates and new features on a retainer, or a documented hand-over to your team.
Technology we use
Frontend
- React
- Next.js (App Router)
- TypeScript
- Tailwind CSS
- Vite
Backend
- Node.js
- Python / FastAPI
- Supabase
- PostgreSQL
- Firebase
Payments & integrations
- Stripe
- GoHighLevel
- Google APIs
- Microsoft Graph
- Resend
Hosting & tooling
- Vercel
- Netlify
- Google Cloud Run
- GitHub Actions
- Playwright
- Sentry
Deployment and ownership
Your accounts
Repositories, hosting and third-party services are set up under your organisation. You own the code from the first commit.
Environments
Separate staging and production, with database migrations versioned and applied through CI.
Security basics
Secrets kept out of the codebase, security headers, dependency updates and least-privilege service accounts as routine work.
Migration without downtime
When replacing an existing site or app, URLs are mapped and redirected so search rankings and bookmarks survive the move.
What custom web development costs
Business websites start at $6,900 and custom web apps — portals, dashboards, internal tools — at $20,900 (see our pricing page). Larger applications with payments, many integrations and admin tooling are quoted after a discovery call and a written scope. The main cost drivers are the rules and integrations behind the screens, not the number of pages.
- Number of user roles and permission rules
- Payments, subscriptions or invoicing
- Integrations with CRMs, calendars and other systems
- Data migration from an existing platform
- Admin and reporting requirements
- AI features and their accuracy requirements
Who this is for
- Businesses whose processes have outgrown spreadsheets, plug-ins or no-code tools.
- Founders who need a production web app rather than a prototype.
- Teams with a web app that has become slow, fragile or hard to change.
- Companies that want SEO and performance handled by the engineers, not bolted on later.
Related services
Custom Web Development: common questions
Tell us about the web application you need
Tell us what you are building or what needs fixing. You will hear back from an engineer — not a sales rep — within one business day, usually with questions or a rough approach.
Your enquiry goes straight to our engineering team — the people who will scope and build your project, not a sales desk.