Stencil and Catalyst theme customisation, bespoke features, checkout changes and custom apps for BigCommerce merchants who have outgrown off-the-shelf templates.

Everything from a tweaked product page to a fully custom headless storefront, delivered by developers who work in BigCommerce every day.
Custom Stencil themes and child themes: new page templates, Handlebars components, Page Builder widgets and performance tuning.
Learn moreNext.js storefronts on Catalyst and the GraphQL Storefront API for brands that want full design freedom and speed.
Learn moreOptimised checkout flows with the Checkout SDK, custom fields, gift options, B2B terms and payment method rules.
Learn moreProduct configurators, bundle builders, size guides, store locators and custom Page Builder widgets built as clean, upgrade-safe code.
Learn morePrivate apps for your operations and public apps for the marketplace, built on the Management API, webhooks and the App framework.
Learn moreCustomer groups, price lists, quotes, company accounts and purchase approvals configured and extended on B2B Edition.
Learn moreFabric, size and leg options rendered live with price updates and a configured SKU added to cart.
CSV quick order, saved lists, net terms and approval workflows built on B2B Edition.
A Next.js storefront on Catalyst with edge caching and a redesigned mobile checkout.
We build customisations the BigCommerce way, so your store stays fast, upgrade-safe and easy for your team to manage in the control panel.
Child themes, widgets and apps that survive theme and platform updates without rework.
Lazy loading, image optimisation and lean bundles keep Core Web Vitals green.
Pixel-accurate builds from your Figma files with responsive behaviour checked on real devices.
Content stays editable in Page Builder and the control panel; no developer needed for daily changes.
We prefer native BigCommerce features and extension points first, then add custom code only where it earns its place.
The stack behind our BigCommerce customisation projects.
A proven process to turn your ideas into powerful digital solutions.
We audit your theme, apps and analytics to find what to customise and what to leave alone.
We agree designs, acceptance criteria and the extension approach for each feature.
We develop in a staging store, test across devices and check performance before release.
We deploy, hand over documentation and support your team after launch.
Answers to the questions we hear most often. Need more detail? Talk to our team.
Stencil is right for most stores that need a custom look without a separate front end. Catalyst makes sense when you want a Next.js storefront, custom routing or content-heavy experiences. We help you decide during the review.
Yes. With the Checkout SDK and Optimized One-Page Checkout we can change layout, add fields, apply B2B rules and integrate payment methods while staying PCI compliant.
We build with child themes, widgets and apps that use public APIs, so platform updates do not overwrite your work. We also test after each major release.
Usually, yes. We review the code first; if it is heavily modified or slow we may recommend a clean rebuild on the same design.
Small features ship in one to two weeks. A full theme or Catalyst storefront typically takes six to ten weeks including design and QA.
Share your feature list or design files and we’ll send a scoped plan with timeline and fixed pricing.
Or schedule a free consultation
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