About
php4u was founded on the belief that good software shouldn't require an enterprise budget — just the right people who care about the craft.
Our core specialism is Magento — across all versions of the platform, from legacy Magento 1 stores to modern Magento 2 and Adobe Commerce implementations. We handle everything: new builds, migrations, custom module development, third-party integrations, and performance work.
Beyond Magento, we take on app development projects and smaller web work where a focused team with strong technical foundations makes a real difference. No bloated processes — just clear thinking and solid code.
We work with merchants, agencies, and product teams who need reliable development support they can actually trust to deliver.
Services
Deep expertise across all Magento versions — Magento 1, Magento 2, and Adobe Commerce. Custom modules, theme development, performance tuning, migrations, and integrations with ERP, payment, and logistics systems.
Mobile and web applications built from the ground up. From scoping and architecture through to delivery — pragmatic technology choices that match your users and your budget.
Smaller scope, still done properly. Landing pages, brochure sites, client portals, internal tools — clear deliverables, sensible timelines, no unnecessary overhead.
Bespoke solutions for problems that off-the-shelf products don't solve. Workflow automation, integrations, admin systems, and backend services built around how your business actually works.
Products
Alongside client work, php4u creates and operates its own software — products that come out of problems we kept running into on real projects.
Know the moment a store stops selling.
Watchtower is a monitoring service for Magento stores. Uptime checks tell you the site responds — they don't tell you that checkout has been failing for three hours, that the ERP sync stalled overnight, or that cron stopped running last week. Watchtower watches the signals that actually affect revenue: baskets, checkouts, customer accounts, admin security, integrations, cron, indexers, and queues.
Analysis runs on your own server, so no order details or customer data ever leave it. Each signal learns what normal looks like for your store — nothing to configure, and alerts are confirmed before they reach you. Used by solo merchants, agencies with client estates, and enterprise retail teams.
Visit Watchtower ↗Contact
Whether you have a clear spec or just an idea worth exploring, we're happy to have a conversation.
…php4u Limited · Registered in England & Wales · Company No. 11345512
Registered Office: 124 City Road, London, EC1V 2NX