Splendid Technology

09 Mar 2026

What does a web development company in the UK actually do? (A buyer’s guide)

A buyer’s guide to hiring a UK web development company: what they do, what deliverables to expect, how projects run, red flags, and how to compare quotes.

If you’re looking for a web development company UK, you’re probably trying to answer two questions:

  1. What will they actually deliver?
  2. How do you avoid paying for a messy project?

This buyer’s guide explains what a good web development partner does from discovery to launch, what “good” deliverables look like, and how to compare proposals confidently.

If you want a clear scope and realistic timeline for your project, see Services or request a quote: Contact us.


1) Discovery and scoping (where most projects succeed or fail)

A good agency doesn’t start by coding. They start by clarifying:

  • goals (enquiries, sales, onboarding, internal efficiency)
  • audience and intent
  • what “success” means (KPIs)
  • constraints (deadline, budget, content readiness)

What you should receive

  • a clear scope (what is included / excluded)
  • sitemap or screen list
  • assumptions (who writes content, who supplies images)
  • risks (integrations, third-party dependencies)

If a quote is vague at this stage, problems usually appear later.


2) UX and information architecture

Whether it’s a website or a web app, the structure matters.

For websites:

  • page hierarchy that matches search intent
  • clear calls-to-action
  • trust signals (case studies, reviews)

For web apps:

  • user journeys
  • screen flows
  • permissions and roles

What you should receive

  • wireframes (for key screens/pages)
  • user flow diagrams (for apps)
  • content structure guidance

3) Design (more than “make it pretty”)

Design should support conversion and clarity.

For websites, good design includes:

  • strong hierarchy (what users see first)
  • mobile-first layouts
  • accessible typography and contrast

For apps, design includes:

  • clear navigation
  • readable data tables/dashboards
  • error states and empty states

What you should receive

  • design mockups for key templates/screens
  • a component approach (reusable patterns)
  • a feedback process with defined rounds

4) Development and integrations

This is the part people think of as “the build.” A web development company typically covers:

  • frontend development (UI)
  • backend development (APIs, database)
  • integrations (payments, CRM, email)
  • authentication and authorisation (for apps)

What you should receive

  • staging environment (preview link)
  • progress demos (weekly or milestone-based)
  • clear integration notes (what connects to what)

5) SEO, performance, and technical foundations

Even if you’re not “doing SEO” yet, you want good foundations.

A strong baseline includes:

  • fast pages and good mobile UX
  • clean metadata and page structure
  • sitemap and robots
  • analytics and event tracking

For ecommerce and apps:

  • error monitoring
  • performance budgets
  • secure handling of user data

6) QA and launch (the part you notice when it’s missing)

Quality assurance isn’t just “clicked around once.”

Good QA includes:

  • mobile + desktop testing
  • form testing
  • edge cases (empty states, invalid input)
  • performance checks

Launch should include:

  • DNS/hosting checklist
  • backups
  • roll-back plan
  • post-launch verification

What you should receive

  • a launch checklist
  • a handover guide (how to edit content, manage users)
  • access details (who owns what)

7) Support and maintenance

A website or app is never “done.” A web development company can help with:

  • security updates
  • bug fixes
  • content updates
  • feature iterations

Ask upfront:

  • what’s included post-launch?
  • what’s the response time?
  • do they offer a monthly maintenance plan?

How to compare quotes (without becoming a developer)

When comparing proposals, focus on:

  • Scope clarity: what’s included and what’s not
  • Assumptions: who provides content, integrations access, approvals
  • Timeline: milestones and dependencies
  • Quality signals: QA, performance, analytics
  • Ownership: who owns code, domains, accounts

A lower price with a vague scope is often the most expensive option.


Red flags (walk away)

  • vague deliverables (“a modern website”) with no scope
  • no mention of analytics, SEO basics, or performance
  • no process for feedback and sign-off
  • no plan for hosting, backups, or post-launch support
  • “unlimited revisions” without structure

Next step: get a proposal you can trust

If you share:

  • what you’re building (website, ecommerce, web app)
  • must-have pages/features
  • your timeline
  • examples you like

…we’ll respond with a clear scope, realistic timeline, and estimate.

Request a quote here: Contact us.

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