Web Design and Development UK: Sites Built to Convert, Pass WCAG 2.2 and PECR, and Rank From Launch
If you are looking for a web design agency in the UK, you have probably had, or are trying to avoid, the usual experience: a site that looked good in the pitch and loses enquiries in production, with a cookie banner that blocks the page on a phone, a contact form that fails on mobile, a template that cannot pass Core Web Vitals, and an accessibility statement that would not survive an Equality Act complaint. This page sets out how we build UK sites the other way round, starting from the enquiry or order and working back to the design, and what each type of build costs in GBP.
Every UK build is scoped from a conversion and SEO audit of the existing site, built on WordPress or Shopify, tested against WCAG 2.2 AA, PECR-compliant consent and Core Web Vitals before launch, and migrated without losing rankings. Pricing is in GBP, excluding VAT, with the SEO foundation included rather than sold as an add-on. The build types are listed below with the fit for each.
Which UK build fits your situation
Match the row to what your current site is failing to do; the free review confirms the scope and a GBP estimate.
| If this is you | Start with |
|---|---|
| Service business whose site gets traffic but few enquiries, forms that fail on mobile, no call tracking | Website conversion design: rebuilt page templates, forms and tracking on the existing platform where possible |
| Retailer on Shopify competing with Amazon.co.uk and marketplaces on category terms | Shopify design with category architecture, speed and structured data for Google Shopping |
| Company on an ageing WordPress theme or page builder that cannot pass Core Web Vitals | WordPress rebuild on a lean theme with the content migrated and redirects mapped |
| Store on Magento, WooCommerce or a legacy platform planning a replatform | eCommerce build with an SEO migration plan so rankings survive the move |
| Public-facing organisation that needs a defensible accessibility statement | Any build type, with a WCAG 2.2 AA audit and statement included |
UK web design and development services
Each card opens a build-type page with scope, GBP pricing and FAQs for UK businesses.
More UK web design and development pages (4)
Further UK pages in this section. The services above are the ones most UK clients start with; these cover narrower situations.
What a UK website has to pass before it can convert
Three UK-specific requirements decide whether a site works commercially, and they are the three most agencies leave to the end. We test all of them before launch.
- ✓WCAG 2.2 AA and the Equality Act 2010Public-sector bodies must meet WCAG under the 2018 accessibility regulations, and private businesses face Equality Act claims if a site excludes disabled users. We build to WCAG 2.2 AA, test with screen readers and keyboard navigation, and supply an accessibility statement.
- ✓PECR consent that does not kill conversionNon-essential cookies need consent before they load, which is why so many UK sites lose analytics and conversions. We implement consent mode so GA4 and ad platforms model what they cannot measure, and design the banner so it does not block the page or the call-to-action.
- ✓Core Web Vitals on UK mobile networksLargest Contentful Paint under 2.5 seconds and Interaction to Next Paint under 200 milliseconds on a mid-range Android over 4G, measured with field data, not a lab score on a desktop.
- ✓Payments and trust signals UK buyers expectApple Pay, Google Pay, PayPal and Klarna where relevant, VAT-inclusive pricing shown clearly, Trustpilot or Google reviews with the rules followed, and a Companies House number and registered address in the footer.
- ✓SEO migration without losing rankingsURL mapping, 301 redirects, preserved titles and structured data, and a crawl before and after launch so the new site keeps what the old one earned.
UK builds are quoted in GBP from the free review: conversion redesigns on an existing platform typically £3,000–£8,000, full WordPress or Shopify builds £6,000–£20,000 and eCommerce replatforms above that, excluding VAT. Ranges are indicative, not quotes.
Results from the same process
The result below is one documented example from the same process; the client’s name is withheld under NDA and the figures come from their analytics, not estimates.
- Page 1High-intent terms
- 5×Organic enquiries
- 6 monthsTime to that result
- Financial servicesRegulated, trust-dependent category
How we work in the United Kingdom
- 1Free website review (days 1–3)Conversion, speed, accessibility and SEO review of the current site, with the build type that fits and a GBP estimate.
- 2Scope, wireframes and migration map (weeks 1–3)Page templates designed from the enquiry backward, URL and redirect map for the migration, consent and tracking plan, accessibility requirements fixed before design.
- 3Build and test (weeks 4–10)WordPress or Shopify build, WCAG 2.2 AA testing, Core Web Vitals field testing on mobile, PECR consent implementation, forms and call tracking verified.
- 4Launch, verify and hand over (week 11 onward)Redirects live, crawl compared against the old site, Search Console checked, documentation and training handed over; optional conversion or SEO retainer from month two.
“Ren Hao SEO turned organic search into our biggest pipeline source. We finally have a channel that compounds.”
“The transparency is unlike any agency we’ve worked with. We always know what’s happening and why.”
Frequently asked questions
How much does web design cost in the UK?
Will a new site lose our Google rankings?
Do you build to WCAG 2.2 and provide an accessibility statement?
Do you work with UK businesses remotely?
Do you offer hosting and maintenance in the UK?
About this page
Written by the Ren Hao SEO team and reviewed by Ren Hao, Founder & Lead SEO Strategist (LinkedIn). Ren Hao SEO is an international SEO agency headquartered in Johor Bahru, Malaysia, serving eight country markets including the United Kingdom (company LinkedIn). Last substantive update: October 2026. Pricing ranges come from our UK SEO pricing guide; the case result is documented in the linked case study. Drafting is assisted by AI tools and every page is edited and fact-checked by our team before publication; see how we create our content. For SEO after launch see SEO services UK; for improving an existing site’s conversion without a rebuild see CRO services UK.