Shopify and Shopify Plus
Theme design and build, custom apps, checkout extensibility, B2B features and the UK payment, tax and carrier apps configured properly.
E-Commerce Development · London (Dagenham)
E-Commerce Development in London
Shopify, WooCommerce and headless stores designed and built for London retailers and D2C brands, with UK payments, delivery, VAT and returns handled properly and the store built to rank and convert on mobile.
A London online store competes with Amazon on delivery, with the marketplaces on price and with every D2C brand in the country on the same Meta auction. What it can win on is the product, the brand, the experience on a phone and the operational discipline behind the checkout: payments that work, delivery that arrives, returns that do not destroy the margin, and VAT that reconciles.
Infynix Solutions designs and builds e-commerce stores for London retailers and D2C brands on Shopify, WooCommerce and headless platforms, chosen on the facts of the catalogue, the team and the roadmap. Every store is built to convert on mobile, to rank, and to run as part of the business system rather than as an island.
We work with fashion, beauty, homeware, food and drink, specialist retail and B2B wholesalers across London, and with brands selling from London into Europe and beyond.
How we work
- 01
Discover
A paid discovery phase producing a scoped roadmap you own outright.
- 02
Architect
Data model, integrations and infrastructure agreed before code.
- 03
Build
Fortnightly demos, working software, no black box.
- 04
Hand over
Your repositories, your infrastructure, documented.
E-commerce development services in London
WooCommerce
Stores where content and commerce live together on WordPress, with performance, security and UK integrations handled.
Headless and custom commerce
Next.js storefronts on Shopify, commercetools or custom backends where catalogue, integration or performance demands justify the engineering.
Payments and checkout
Stripe, Adyen, PayPal, Apple Pay, Google Pay, Open Banking, Klarna and Clearpay configured for conversion and reconciliation.
Fulfilment and carriers
Royal Mail, DPD, Evri, DHL and 3PL integration with tracking, returns portals and rate shopping.
Integration with the business
ERP, accounting, inventory, CRM, email and marketplace connections so orders, stock and customers flow without re-keying.
What every London store includes
Mobile-first checkout
A checkout that completes on a mid-range phone on a slow connection without losing the order.
UK VAT handled
Standard, reduced and zero-rated products, VAT-inclusive pricing, invoices and Making Tax Digital-ready records.
Returns to the rules
Consumer Rights Act and distance selling returns handled with a portal and reconciled refunds.
Search-ready catalogue
Category and product structure, product schema and performance so the store can rank.
Consent and privacy
Cookie consent to PECR with consent mode, and email marketing consent captured properly.
Analytics that reconcile
GA4, server-side tagging and platform pixels configured so reported revenue matches the accounts.
Marketplace connections
Amazon UK, eBay and social commerce with inventory synced where the channel justifies it.
Full handover
Store, code, accounts and documentation in your name.
Typical projects and timelines
| Project | Timeline |
|---|---|
| Shopify store | 4 to 8 weeks |
| WooCommerce store | 5 to 10 weeks |
| Shopify Plus or headless build | 10 to 16 weeks |
| Marketplace and 3PL integration | 2 to 5 weeks |
| Migration from an existing platform | 4 to 10 weeks |
| Care, hosting and growth | Monthly |
Who we build stores for in London
Fashion and beauty D2C
Brands living on Meta and TikTok that need a store which converts the click and handles returns without losing the margin.
Food, drink and specialist retail
Perishable, regulated or age-restricted products with the delivery, compliance and subscription logic they need.
Homeware and furniture
High-value, bulky products with delivery scheduling, finance at checkout and showroom integration.
B2B and wholesale
Trade portals with tiered pricing, credit accounts, VAT handling and integration with the ERP.
Retailers going online
London shops adding a store that shares stock and customers with the till.
How a project runs
Fixed-price build
Discovery, design, build, integrations and launch on an agreed scope and price.
Build with growth plan
The store delivered, then improved monthly from conversion, search and campaign data.
Migration
Moving an existing store to a better platform without losing orders, customers or rankings.
Choosing the platform on the facts
Shopify is the right answer for most London retailers: managed, reliable, with UK payment, tax and carrier apps, and a team can run it. Shopify Plus adds checkout extensibility, B2B and automation for brands at volume. WooCommerce fits when content and commerce need to live together on WordPress and the catalogue is manageable. Headless or custom builds are justified when the catalogue, integrations or performance demands exceed what the platforms handle well.
We recommend from your catalogue, volumes, team and roadmap rather than from a preference, and we say when the cheaper option is the right one.
Shopify
For most retailers who want a managed platform their team can run.
Shopify Plus
For volume, B2B, checkout customisation and automation.
WooCommerce
Where content and commerce share a WordPress site.
Headless and custom
Where scale, integration or performance justify the engineering.
The UK checkout and what it costs to get wrong
UK shoppers expect Apple Pay and Google Pay, buy now pay later through Klarna and Clearpay, delivery options they can choose, and a returns process they can trust. Each has a cost and a conversion effect that the store has to balance: BNPL lifts conversion and average order but carries fees, next-day delivery converts but needs the carrier contract, and free returns convert but need the reconciliation to show what they actually cost.
We build the checkout for the UK customer, reconcile gateway settlements, refunds and BNPL fees into the accounts, and report returns against margin so the business knows what each policy costs it.
Wallets and BNPL
Apple Pay, Google Pay, Klarna and Clearpay configured for conversion with fees reconciled.
Delivery options
Carrier services, rate shopping and cut-off times presented clearly.
Returns portal
Self-service returns to the Consumer Rights Act with refunds reconciled.
Margin reporting
Returns, fees and delivery costs against contribution, by product and channel.
Selling from London into Europe and beyond
A London brand selling into the EU after Brexit faces customs, duties, VAT registration in destination markets or the Import One Stop Shop, and carriers whose handling of all of it varies. Selling to the US and the Gulf adds duties, currency and a different customer. Each needs pricing, logistics, tax and content decisions made deliberately.
We build stores that serve those markets with duties and taxes calculated at checkout, customs documentation handled, prices shown in the right currency, and campaigns from our UAE and India teams where those markets are the target.
Duties and taxes
Calculated at checkout so the customer is not surprised at the door.
Customs documentation
Commercial invoices and HS codes generated from the order.
Currency and pricing
Prices shown correctly for UK, EU and international customers.
Gulf reach
Campaigns and localisation with our UAE team for brands selling to the Gulf.
The store as part of the business, not an island
A store that does not know what the warehouse holds, that re-keys orders into the accounts, or that keeps a separate customer list from the CRM creates work every day and errors every week. We build stores integrated with inventory, accounting, CRM and email so stock is accurate, orders flow to fulfilment and the accounts, and the customer is one record everywhere.
Where the business also sells on Amazon UK, eBay or in a shop, inventory and orders are synced so the channels do not oversell each other.
Inventory sync
Stock shared across the store, marketplaces and the till.
Accounting integration
Orders, refunds and fees posted to Xero, Sage or QuickBooks automatically.
CRM and email
Customers and consent shared with Klaviyo, HubSpot or your CRM.
Marketplace connections
Amazon UK and eBay with orders and stock synced.
E-commerce for London from East London
Infynix Solutions works from Dagenham and builds stores for retailers and brands across London, with discovery and launch on site and the build run remotely with reviews every two weeks. Design, engineering and marketing are one team, so the store is built for the campaigns and the search programme that will drive it.
The discovery call is free. Bring your current store, your best-selling products and your returns rate, and we will tell you what we would change first.
Frequently Asked Questions
How much does an e-commerce website cost in London?
We do not quote from a rate card. A discovery session establishes the scope, the systems involved and the outcome you are working towards, and the proposal that follows is a fixed price or a monthly retainer for exactly that. If a smaller first phase would answer the question, we say so.
Shopify or WooCommerce for a London store?
Shopify for most retailers who want a managed platform their team can run with UK payment, tax and carrier apps. WooCommerce where content and commerce need to live together on WordPress. We recommend from your catalogue, volumes and team rather than a preference.
Do you integrate Klarna, Clearpay and Apple Pay?
Yes. Wallets and buy now pay later are configured for conversion, with fees and settlements reconciled into the accounts so you can see what each costs.
Can you connect the store to our accounting and inventory?
Yes. Orders, refunds and fees post to Xero, Sage or QuickBooks automatically, stock is shared with the warehouse, marketplaces and the till, and customers and consent flow to your CRM and email platform.
Can you help us sell into the EU after Brexit?
Yes. Duties and taxes calculated at checkout, customs documentation generated from the order, IOSS or destination VAT handled as your setup requires, and carriers configured for the routes.
Do you handle VAT and Making Tax Digital for online orders?
Yes. VAT rates by product, VAT-inclusive pricing, compliant invoices and digital records that feed your accounting package for Making Tax Digital filing.
Can you migrate our store from another platform without losing rankings?
Yes. Migrations are planned with a redirect map, product and customer data migration, order history preserved where the platform allows, and Search Console monitored through and after launch.
Do you provide ongoing support?
We do not quote from a rate card. A discovery session establishes the scope, the systems involved and the outcome you are working towards, and the proposal that follows is a fixed price or a monthly retainer for exactly that. If a smaller first phase would answer the question, we say so.
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Talk to Infynix About E-Commerce Development in London
Tell us what you are trying to grow and we will tell you honestly whether we are the right people for it.
39 Becontree Avenue, Dagenham, Greater London RM8 2UH+44 7436 670553 · office@infynixsolutions.co.uk