# Custom WooCommerce Development > We write custom WooCommerce modules, optimize performance, and run technical audits on existing WooCommerce stores. Themes, extensions, migrations, debugging. - Source: https://maxdev.ro/en/services/woocommerce-development/ - Romanian version: https://maxdev.ro/servicii/woocommerce-development/ - Site index for AI: https://maxdev.ro/llms.txt --- **WooCommerce taken beyond what a standard plugin can do.** We write custom modules, optimize performance, and run technical audits on WooCommerce stores, whether we build them from scratch or take over a store someone else already set up. Already have a WooCommerce store and need targeted technical work, not a new project from zero? You're in the right place. ![WooCommerce performance report, before and after optimization](https://maxdev.ro/assets/_opt/pages/servicii/woocommerce-development/hero-64129529-640.webp) ## New store or existing store, we treat WooCommerce as a technical discipline. Maybe you have a store that works, but it's slow. Maybe you need a pricing rule no plugin covers. Maybe you took over a store built by someone else and don't know what's inside it. In every case, we intervene at the code level, not just at the configuration level. **Technical audit of an existing store** We review the code, installed plugins, performance, and security of a WooCommerce store built by someone else, with a clear report on problems and priorities. **Custom modules & features** Pricing rules, shipping calculators, business logic that doesn't exist in a standard plugin, written directly into code and integrated natively. **[WooCommerce performance optimization](https://maxdev.ro/en/services/speed-optimization/)** WooCommerce-specific caching (fragment, object), database query optimization, and reduced load times at checkout and across the catalog. **Custom WooCommerce extensions & plugins** We build our own extensions that integrate natively with WooCommerce through hooks and filters, not incompatible plugin overlaps. **Custom WooCommerce themes** A theme written specifically for your store, not a universal template loaded with unused features slowing down the catalog. **Migration between themes or plugins** We swap the theme or replace a plugin without losing products, orders, or customers from the existing database. **Debugging & error resolution** Checkout errors, plugin conflicts, stock sync issues. We find the real cause, not just the visible symptom. **Advanced pricing & discount rules** Price per customer, per quantity, per category, coupons with complex conditions that standard WooCommerce doesn't cover. **Multi-vendor & marketplace on WooCommerce** We turn a single-vendor store into a marketplace, with separate dashboards and commissions per seller. **[Custom API integration for WooCommerce](https://maxdev.ro/en/services/api-integration/)** We connect the store, through code, to external systems (ERP, couriers, payments) where no ready-made plugin exists. **WooCommerce updates without breaking anything** We test and roll out major WooCommerce or PHP updates on an active store, without downtime or lost functionality. **Scaling for high traffic** We prepare the store for campaigns, Black Friday, or a sudden traffic spike, without going down exactly when it matters most. ## What a WooCommerce technical intervention includes. We don't start writing code on day one. We analyze first, then intervene exactly where it's needed, with measurable impact. ![Technical audit report for a WooCommerce store](https://maxdev.ro/assets/_opt/pages/servicii/woocommerce-development/audit-tehnic-d9519995-640.webp) 01 · AUDIT & DIAGNOSIS ### A clear report before we write a single line of code. We analyze the existing store (code, plugins, database, performance) and deliver a clear report on what needs fixing or optimizing, prioritized by impact. Code analysis, installed plugins, and conflicts between them Real performance measurements, not estimates A priority list, so you know what to fix first ![Custom WooCommerce extension, integrated natively via hooks](https://maxdev.ro/assets/_opt/pages/servicii/woocommerce-development/extensie-custom-82bb8877-640.webp) 02 · CUSTOM MODULES & EXTENSIONS ### Natively integrated code, not fragile overlaps. We write code that integrates natively with WooCommerce through hooks and filters, not unstable combinations of third-party plugins that contradict each other. A dedicated extension, compatible with WooCommerce updates Pricing, shipping, or checkout rules written exactly to spec Documented code, easy for another team to pick up later ![Before and after speed report](https://maxdev.ro/assets/_opt/pages/servicii/woocommerce-development/viteza-inainte-dupa-a6e7083f-640.webp) 03 · PERFORMANCE ### Small load times, verified with real data. We optimize caching, database, and images, so load times stay low even with a large catalog or high traffic. Fragment and object caching, configured specifically for WooCommerce Optimization of slow queries and periodic database cleanup Before and after measurements, so the improvement is verifiable ![Staging environment for a WooCommerce store](https://maxdev.ro/assets/_opt/pages/servicii/woocommerce-development/staging-a738cbc5-640.webp) 04 · MIGRATION & UPDATES ### Changes tested first, not applied directly to the live store. We swap themes or plugins, or run a major update, tested first on a copy of the store, without losing products, orders, or customers. Full staging testing before applying anything in production Data migration with no loss: products, orders, customers A rollback plan, in case something unexpected comes up 1 Case studies ## WooCommerce stores, taken beyond standard configuration. The projects below are real WooCommerce stores, from technical work with custom modules and ERP integration, to stores built from scratch: the kind of technical work we can also do on your store. ![Forelit B2B platform, built on WooCommerce](https://maxdev.ro/assets/_opt/case-studies/forelit/screenshot-6759c5f0-640.webp) ![Forelit](https://maxdev.ro/assets/_opt/case-studies/forelit/logo-2f308240-132.webp) B2B · WooCommerce ### b2b.forelit.ro WooCommerce Custom modules SoftOne ERP We wrote custom WooCommerce modules for Forelit's B2B business logic: per-client pricing and discount rules, accounts generated automatically from SoftOne ERP, payment terms calculated automatically. Code integrated natively through WooCommerce hooks, not stacked plugins. - 3 clickssimplified checkout, with address and delivery window chosen from the account - 100%invoices and client accounts synced automatically from SoftOne ![Hemerama store, synced with SoftOne ERP](https://maxdev.ro/assets/_opt/case-studies/hemerama/screenshot-59282b73-640.webp) ![Hemerama](https://maxdev.ro/assets/case-studies/hemerama/logo.svg) eCommerce · WooCommerce ### hemerama.com WooCommerce Performance optimization SoftOne ERP We optimized and extended WooCommerce for Hemerama to support full bidirectional sync with SoftOne ERP: stock, price, orders and customers, updated in real time, without unreliable third-party plugins bridging the two systems. - Bidirectionalfull sync of price, stock, orders and customers - Realtimeavailability based on physical stock, straight from the ERP ![The rebelagoddess.ro online store, built on WooCommerce](https://maxdev.ro/assets/_opt/case-studies/rebela-goddess/screenshot-1972d633-480.webp) Fashion · Tailoring ### rebelagoddess.ro WooCommerce Automated invoicing Pre-orders Rebela Goddess, a brand with its own tailoring atelier in Bucharest, previously had a presence only on Instagram. We built them a WooCommerce store with automated invoicing and shipping, plus pre-order support. The demand it generated outgrew production capacity, with the atelier now running at full capacity. - 100%invoicing and shipping automated, built directly into the store - Orders pauseddemand outgrew atelier capacity, resuming soon ![pigeonshop.ro WooCommerce store, veterinary products for racing pigeons](https://maxdev.ro/assets/_opt/case-studies/pigeonshop/screenshot-03f47183-640.webp) ![Pigeonshop](https://maxdev.ro/assets/_opt/clients/pigeonshop-d3a532d7-160.webp) eCommerce · Niche ### pigeonshop.ro WooCommerce Veterinary products Niche market Pigeonshop.ro is a niche WooCommerce store selling veterinary supplements and products for racing pigeons, under the Dr. Peeters brand. We built the store with a catalog organized by category and manufacturer, tailored to a very specific audience. - Catalog by brandproducts organized by category and manufacturer - Niche audienceveterinary supplements and products for racing pigeons ![rinostore.ro WooCommerce store, fashion for the whole family](https://maxdev.ro/assets/_opt/case-studies/rinostore/screenshot-268f332a-480.webp) Fashion · eCommerce ### rinostore.ro WooCommerce Fashion Family sets RINO is a fashion brand with matching outfit sets for the whole family: women, girls and boys. We built the store on WooCommerce, with clear categories by segment and dedicated "family sets" collections. - Family setsmatching collections for mothers and children - 3 categorieswomen, girls and boys, clearly organized in the store ![somnart.ro WooCommerce store, mattresses and bedding](https://maxdev.ro/assets/_opt/case-studies/somnart/screenshot-54d01e71-480.webp) eCommerce · Mattresses & bedding ### somnart.ro WooCommerce Installment payments Mattresses & bedding SomnART sells mattresses, toppers, bedspreads, bed linens, pillows and duvets, with 25 years of experience in the field. We built the store on WooCommerce, with Oney installment payments built directly into checkout. - +25 yearsexperience in mattresses and bed linens - Installments3 or 4 payments via Oney, right from checkout ## Companies that chose us as their technology partner. Some of the companies we do WooCommerce technical work for. [Forelit](https://b2b.forelit.ro) [Hemerama](https://hemerama.com) [Somnexpert](https://somnexpert.ro) [Modularbox](https://modularbox.ro) [Electrocamelite](https://electrocamelite.ro) [Pigeonshop](https://pigeonshop.ro) [Rinostore](https://rinostore.ro) [Irigarden](https://irigarden.ro) [Travandi](https://travandi.ro) [Somnart](https://somnart.ro) ## Questions we get asked often. ### I already have a WooCommerce store with issues. Can you step in without rebuilding everything? Yes, that's exactly what we focus on here. We run a technical audit, identify the real problem, and intervene precisely: performance, bugs, custom modules, without rewriting a store that already works. ### What's the difference from your online store development service? [Online store development](https://maxdev.ro/en/services/online-store-development/) means the full process of building a new store from scratch, from catalog to [ERP integration](https://maxdev.ro/en/services/erp-integration/). Here we handle advanced technical work on existing WooCommerce stores: custom modules, performance, migrations, debugging. ### Can you take over a WooCommerce store built by another agency or developer? Yes. We audit the code, plugins, and database, then continue development or fix what's causing problems, without starting from zero. ### My store is slow. What exactly do you optimize? WooCommerce-specific caching, database query optimization, images and, where relevant, [the hosting infrastructure](https://maxdev.ro/en/services/wordpress-woocommerce-hosting/). We measure before and after, so the improvement is verifiable. ### Can you write a custom extension for a specific pricing or shipping rule? Yes. When a standard plugin doesn't cover the exact rule you need, we write our own extension, integrated natively with WooCommerce through hooks and filters. ### How risky is a major WooCommerce update on an active store? We test the update on a copy of the store before applying it in production, so we catch any plugin or theme conflict before it affects real customers. ### Do you also offer an audit without a long-term commitment? Yes. You can request a standalone technical audit, get a clear report on the problems found and their priority, then decide whether you want us to continue with implementation. --- ## Contact - Phone: +40 735 343 355 - Email: contact@maxdev.ro - WhatsApp: https://wa.me/40735343355 - Book a call: https://cal.com/daniel.maxdev - Address: 66A Theodor Pallady Blvd, District 3, Bucharest, Romania