We are a certified Magento development agency in the UK, building Magento 2 and Adobe Commerce stores that are fast, architecturally sound, and built to handle growth. From complex B2B catalogues and marketplace builds to B2C stores with high transaction volumes, our Magento development services are designed around the decisions that matter at year two, not just at launch.
Magento Development That Holds Up When Your Business Grows
We are a certified Magento development company with over 250 live builds across B2B, B2C, and marketplace models. Our founder holds the Magento Master designation, one of fewer than 60 awarded globally, and our developers are Adobe Commerce certified at developer level, not just listed on a partner directory.
As a Hyvä Bronze Partner, performance is built into our Magento development services by default. We do not default to Luma. Every store starts from a front-end stack built for Core Web Vitals, not a theme that was current in 2015.
What separates our Magento agency is not the services we offer. It is the architectural decisions we make before the first sprint begins.
Our Magento development company brings proven expertise and a commitment to excellence. As a certified Magento development agency UK, we hold official Magento certifications by adobe demonstrating the highest level of technical skill, industry knowledge, and best practises.
With 10+ years of hands-on experience across diverse sectors, our Magento web development company ensures your store is reliable, high-performing, and built to scale as your business grows.
Magento's default Luma front-end was built on RequireJS and Knockout.js. It works, but it carries years of technical debt that shows up directly in your Core Web Vitals scores. Lighthouse performance scores of 30 to 50 on mobile are common on Luma-built stores. That is not a hosting problem. It is a front-end architecture problem.
Hyvä replaces the entire Magento front-end stack with Alpine.js and Tailwind CSS. The result is a dramatically lighter page weight, faster Largest Contentful Paint, and Lighthouse scores that typically land in the 90s on mobile. Unlike headless or PWA architectures, Hyvä keeps the standard Magento 2 backend intact, so development costs and timelines stay reasonable.
As a certified Hyvä Bronze Partner, we migrate Luma stores to Hyvä with a full component audit before any build begins. You know exactly which extensions need porting, which need replacing, and what the migration will cost, before you commit. We also give you real before-and-after Core Web Vitals benchmarks, not estimated performance improvements.
Book a Free Discovery CallA well-integrated Magento eCommerce store does not need more apps. It needs fewer, better connections between the systems that run your business. Our Magento development agency builds direct integrations that match how your operations actually work.
Marketing Automation
Search & Personalisation
Product Information Manager
Payment
Shipment
Content Management System
We provide Magento support for over 100 live stores on active retainer. That is not a headline we use for marketing. It means our development team makes architectural decisions knowing they will own the maintenance consequences. Patch monitoring, error log review, cron job oversight, and quarterly store health reports come as standard. When something breaks at 2am, the same developers who built the store are the ones who fix
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A Magento performance audit from our team covers indexer configuration, caching strategy (Redis, Varnish), database query analysis, extension conflict review, and Core Web Vitals benchmarking. You get a prioritised list of what to fix and what it will cost, not a traffic-light report with no actionable detail.
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We build Magento API integrations for ERPs, CRMs, PIMs, shipping providers, and payment gateways. Our integration work uses a documented data contract between systems, not a direct API call that breaks every time the third party updates their schema. Order management, stock synchronisation, and customer data stay in sync because the architecture was built to handle edge cases.
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Our certified Magento developers are available for bespoke builds, Magento 2 migrations, Adobe Commerce projects, and Hyvä theme development. Each developer is Adobe Commerce certified, experienced in UK eCommerce, and comes with a clear technical profile so you can match the right person to your project. No handoffs to offshore junior developers mid-build.
Read MoreMagento 2 handles genuine complexity well. These are the areas where we extend it for clients with specific requirements.
Free ConsultationSeparating the Magento backend from a custom front-end gives you full control over the customer experience and independent front-end deployment cycles. We build headless Magento using GraphQL APIs with clear data-layer documentation. It is a significant architectural commitment and the right choice for a specific set of use cases. We will tell you honestly whether yours is one of them.
The Magento B2B module handles company accounts, negotiable quotes, requisition lists, shared catalogues, and purchase order workflows. Running B2B and B2C from a single Magento 2 instance is entirely viable with the right catalogue and pricing architecture. We have built multi-site setups with over 50,000 B2B SKUs and separate B2C storefronts sharing one backend.
Connecting your Magento store to your back-office systems is where most eCommerce projects create long-term technical debt. We build integrations with a documented data contract between systems. Order data, stock levels, customer records, and pricing rules stay consistent because the integration was designed for your operational reality, not a textbook API call.
PWA is the right choice when you need full front-end decoupling, app-like interactivity at high scale, or native app parity on mobile. For most UK merchants, Hyvä delivers better value at lower cost and complexity. If PWA is genuinely the right fit, we scope it properly. We do not sell it as a default upgrade.
Our Magento eCommerce development process is built around the decisions that determine long-term store performance, not generic project management stages.
Before we scope anything, we review your catalogue structure, integration requirements, and expected traffic profile. This takes two to three working days. Most Magento development problems we inherit from other agencies were created at this stage because it was skipped.
You get a written proposal with a defined scope, delivery timeline, and a clear list of what is and is not included. No open-ended retainer requirements before build begins. No additions to scope without a written change order.
We design around the purchase journey. Product detail pages, category navigation, and checkout flow get the most attention because that is where conversion is won or lost. Responsive, mobile-first by default. Figma handoffs include full developer annotations.
Bespoke Magento 2 modules, third-party integrations, B2B configuration, and ERP connections are built in this phase. Every integration is tested against a production-equivalent data set before it touches your live environment.
We test every function and integration against a defined acceptance checklist. Automated and manual testing across devices, browsers, and load conditions. Security testing is included as standard, not offered as an add-on.
DNS migration, cache warming, and error monitoring from minute one. A documented rollback position is in place before go-live. Post-launch monitoring runs for 30 days as standard.
Post-launch, we move into a retainer if you need one. Proactive patch monitoring, quarterly store health reports, and direct access to the same developers who built your store. Not a ticket queue managed by a separate support team.
Frequently Asked Questions
Magento web development is the process of building, configuring, and maintaining eCommerce stores on the Magento 2 or Adobe Commerce platform. It covers custom theme development, extension and module development, third-party system integration, performance tuning, and ongoing technical support. As a specialist Magento development company, we handle the full technical scope, from architecture planning through to post-launch retainer. The goal is a store that performs well under real trading conditions, not just in staging.
Magento Open Source is free to download and use. Ongoing costs cover hosting, developer support, and any extension licences. Adobe Commerce (the enterprise edition) has licence fees that scale with annual revenue. For most UK merchants, the more useful number is the total monthly cost of a hosted, supported, and actively maintained Magento store. Our Magento agency can give you a realistic figure once we understand your stack, traffic volume, and support requirements.
Magento 2 and Adobe Commerce remain the strongest platforms for mid-market and enterprise retailers with complex catalogues, B2B requirements, or multi-site architectures. For straightforward B2C with a standard catalogue, Shopify Plus is often the better choice. We work on both platforms and will give you an honest recommendation based on your actual requirements, not on which platform we prefer to build on.
Magento itself does not charge transaction fees. The payment gateway you integrate with your Magento store will apply its own transaction costs, which vary by provider, volume, and card type. We can advise on the most cost-effective payment setup for your expected transaction volume.
Yes. Before we take on any existing Magento store, we run a technical audit covering code quality, extension conflicts, security patch status, PHP version compatibility, and performance baselines. You get a written assessment of what the store needs before we quote for any work. There are no surprises about what you have inherited.
KIWI Commerce redeveloped my entire website, exactly to my requirements. They worked exactly along with my timeframe and were fantastic to work with. I would highly recommend this company. Thank you Sam and the team!
Great response to tickets. We feel our website is in safe hands with Kiwi. Any issues are fixed very quickly. Great value for money. We have been working with Kiwi for a couple of years now and find them very helpful and easy to get along with. Would highly recommend.
Working with Kiwi Commerce has been a very smooth experience. Their team is responsive, knowledgeable, and always willing to go the extra mile. From development to ongoing support, everything is handled efficiently and with great attention to detail. Highly recommended.
We’ve been working with Kiwi Commerce for ongoing website improvements and support, and the experience has been consistently positive. They are proactive, easy to work with, and quick to respond whenever we need assistance. Great team and great service.
No pitch deck. No obligation. Just a conversation with people who have built over 250 live Magento stores.
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