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Ecommerce Developer UK

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Ecommerce Development UK

Ecommerce Developer UK — Shopify, WooCommerce & Conversion-Focused UK Stores

ARS Developer Ltd builds ecommerce stores for UK businesses — Shopify 2.0 custom themes with UK VAT, WooCommerce with Royal Mail integration, headless Shopify/Next.js for maximum performance, and conversion rate optimisation for UK audiences. GBP milestone contracts.

Best For

UK retail businesses launching their first Shopify or WooCommerce store UK ecommerce brands migrating from an outdated platform to Shopify 2.0 UK online stores with correct UK VAT compliance across all product categories UK brands needing Klarna, Clearpay, or other UK BNPL payment options UK ecommerce businesses with poor Core Web Vitals hurting google.co.uk rankings

Start a Project

Tell us your current situation and goals. We will recommend the right scope, timeline, and delivery model for your business.

Book Free Consultation View Pricing Portfolio

Why ARS Developer Ltd

  • UK Companies House No. 17039150
  • GBP milestone contracts — clear scope
  • UK GDPR compliant delivery
  • UK timezone support, Mon–Fri 09:00–18:00

Problems We Solve

  • Your UK ecommerce store has incorrect UK VAT — overcharging on zero-rated products.
  • Your store is slow on mobile — losing google.co.uk rankings and checkout conversion.
  • Klarna UK or Clearpay BNPL is not configured — losing conversion from UK shoppers.
  • Your WooCommerce store has plugin bloat — slow, insecure, hard to maintain.
  • EU customers after Brexit see wrong prices and face unexpected customs charges.

What's Included

1

Shopify 2.0 custom theme — JSON templates, section schemas, merchant-editable

2

WooCommerce with UK VAT three-tier (20%/5%/0%) and Royal Mail integration

3

Headless Shopify with Next.js Storefront API — sub-1-second mobile LCP

4

UK GDPR cookie consent that technically blocks non-essential scripts

5

Post-Brexit Shopify Markets — EU duty and VAT-exclusive pricing per market

6

Klarna UK, Clearpay, and Shopify Payments UK BNPL integration

7

Conversion rate optimisation — checkout flow, product pages, mobile UX

8

Core Web Vitals — LCP under 2.5s, CLS under 0.1, INP under 200ms

9

UK local SEO — hreflang en-GB, LocalBusiness schema, geo meta tags

10

Monthly ecommerce support — updates, seasonal campaigns, performance monitoring

Frequently Asked Questions

Shopify is the better choice for most UK ecommerce businesses launching new stores — it natively handles UK VAT, Shopify Payments UK, Royal Mail rates, and scales without plugin maintenance. WooCommerce is better when the business is deeply invested in WordPress CMS content and needs tight WordPress integration. For pure ecommerce, Shopify wins on reliability and UK compliance.
In Shopify: enable Shopify Tax UK, apply 20% standard, 0% zero-rated to applicable products (food, books, children's clothing), and 5% reduced where applicable. In WooCommerce: configure WooCommerce Tax with three-tier UK rates applied by shipping address. Tested with real orders before launch.
A Shopify premium theme customisation costs £2,000–£5,000. A custom Shopify 2.0 theme build costs £6,000–£20,000. A WooCommerce store with UK VAT and Royal Mail costs £5,000–£18,000. A headless Shopify/Next.js build starts from £18,000.
Yes. Conversion rate optimisation covers: product page UX (trust signals, reviews, size guides), checkout flow (guest checkout, address autofill), mobile performance (Core Web Vitals), BNPL payment options (Klarna/Clearpay), and post-Brexit EU checkout configuration. We identify the highest-impact fixes first.

Got a question?

Our UK team is available Mon–Fri, 09:00–18:00 GMT.

Contact Us

How We Work With UK Businesses

1 Book a Free Consultation

Complete the contact form or book a strategy call. We review your requirements and respond within one business day with next-step recommendations.

2 Receive a Scoped Proposal

We prepare a detailed proposal covering scope, delivery timeline, milestones, and GBP pricing. No open-ended retainers — every project has a clear contract.

3 Milestone-Based Delivery

Work is delivered in structured milestones with review and approval at each stage. You maintain full visibility and sign off before the next phase begins.

4 Launch and Post-Launch Support

We handle launch, post-launch monitoring, and hand over full documentation. Monthly growth and maintenance support available after launch.

Start a Project

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