Custom Website & Web App Development

Custom websites and web apps, built to last

From a fast marketing site that ranks, to customer portals, internal tools and full SaaS platforms — we build software that’s secure, maintainable and genuinely yours.

Request a quotation Pricing & FAQs
In short

Dé Lime Tree builds custom websites and web applications in Colombo, Sri Lanka for local and international clients. We specialise in Laravel/PHP back ends, server-rendered and progressive web apps (PWAs) that work offline, customer/supplier portals, internal business tools, and multi-tenant SaaS. Every project ships with source code ownership, documentation and security hardening.

What’s included

What we deliver

Marketing websites

Fast, accessible, SEO- and AI-search-ready sites with an editing experience your team will actually use.

Web applications & portals

Customer portals, supplier portals, booking systems, dashboards — role-based access, audit trails, and clean data models.

Progressive web apps (PWA)

Installable apps that work offline and sync when back online — ideal for tills, field teams and patchy connectivity.

SaaS platforms

Multi-tenant architecture, subscriptions and feature flags, tenant isolation tests, and region-aware money and tax from day one.

AI features that earn their keep

Document OCR, natural-language reporting over your data, smart matching and summarisation — with guard-rails and read-only safety.

Security & reliability

OWASP-aware code, 2FA, role-based permissions, rate limiting, backups and monitoring as standard, not extras.

A good fit if…

Who this is for

  • Businesses running operations on spreadsheets, WhatsApp and paper
  • Startups that need a production-grade MVP, not a throwaway prototype
  • Companies needing a customer, supplier or partner portal
  • Brands whose current website is slow, insecure or impossible to update

Built like production software, because it is

We bring the same engineering discipline to a five-page website as to a multi-tenant SaaS: version control, code review, automated tests where they matter, staging environments, and documented deployments. Our own products run on this stack in production — a retail ERP/POS used daily across multiple locations and a multi-country restaurant ordering platform — so the patterns we use are battle-tested, not theoretical.

Technology choices, explained plainly

We default to Laravel (PHP) for back ends: mature, fast to build with, easy to hire for in Sri Lanka and abroad, and cheap to host. For the front end we prefer server-rendered HTML enhanced with lightweight JavaScript — faster to load, better for SEO and AI crawlers, and simpler to maintain than a heavy single-page app. When a project genuinely needs React, Vue or native mobile, we use them. You’ll always get the reasoning in writing.

What you own at the end

  • Full source code in your Git repository
  • Infrastructure you control (your cloud or hosting account)
  • Written documentation: architecture, runbooks, how to deploy
  • An admin handover session with your team

No lock-in. If you ever want another team to take over, they can.

Process

How a project runs

  1. Discovery

    We map users, workflows and data. You get a written scope, architecture sketch and fixed quotation.

  2. Prototype

    Clickable wireframes of the key screens, tested with real users before we build.

  3. Build

    Two-week sprints with working demos. Staging environment from week one.

  4. Launch

    Security review, load and backup checks, then go-live with monitoring.

  5. Evolve

    Optional support retainer with guaranteed response times.

FAQ

Custom Website & Web App Development — questions & pricing

How much does a custom website cost in Sri Lanka?
A custom marketing website typically ranges from LKR 250,000 to LKR 900,000 depending on page count, design depth and integrations. Web applications and portals are usually LKR 1M+ and SaaS platforms are scoped in phases. We give a fixed-scope quotation after a free discovery call.
Why Laravel?
Laravel is a mature, secure PHP framework with a huge ecosystem. It lets us build complex business software quickly, host it affordably, and hand it to any competent PHP team in the future. It also scales well when the architecture is right.
Can you take over an existing project?
Often, yes. We start with a paid code and infrastructure audit, then give you an honest recommendation: stabilise and extend, or rebuild specific parts.
Do you build mobile apps?
We build progressive web apps (PWAs) that install on phones, work offline and cost far less than native apps. For projects that truly need native iOS/Android features, we scope that separately.
Do you provide hosting and maintenance?
We can set up and manage hosting on your own cloud account (so you retain ownership) and offer monthly maintenance plans covering updates, backups, monitoring and small changes.
Start here

Get a quotation for custom website & web app development

Tell us what you need. We’ll reply within one business day, book a free discovery call, and send a written, fixed-scope quote.

  • No obligation, no sales pressure
  • Quotes in LKR for Sri Lanka, USD internationally
  • You talk directly to the engineers

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