Shopify theme development
Production-grade Shopify theme engineering — custom builds or update-safe extension of Horizon and paid themes, built for performance and accessibility.
Senior Shopify theme engineering: custom sections and theme blocks, metaobject-driven content, and WCAG 2.2 AA — built from scratch or by professionally extending Horizon and paid Theme Store themes while keeping them update-safe, so vendor releases stay easy to pull.
Definition
Production-grade Shopify theme engineering: custom Online Store 2.0 and theme-block themes built from scratch, or professional extension of Horizon and paid Theme Store themes. Customisations are isolated from the vendor's files so the theme stays update-safe — when the theme's developers ship a new version, we pull it cleanly. Built for performance, accessibility, and a codebase the next developer can read.
Who this is for
- Brands outgrowing a page-builder or an inherited theme that breaks on every edit
- Brands on Horizon or a paid Theme Store theme who want professional customisation without losing the ability to take vendor updates
- Shopify Plus stores needing OS 2.0 sections, theme blocks, metaobjects, and clean Liquid
- Teams who care about Core Web Vitals, accessibility, and maintainability
How we work it
- 01
Diagnose
Audit the current theme for performance, accessibility, and structural debt — and, on a prebuilt base, whether past customisations have already blocked vendor updates.
- 02
Shape
Plan the section, theme-block, and metaobject architecture around how the team merchandises — and, on a prebuilt theme, the isolation strategy that keeps vendor updates clean to pull.
- 03
Build
Engineer custom Liquid sections and theme blocks to WCAG 2.2 AA with performance budgets held — keeping the vendor's files pristine on a prebuilt base, so updates stay safe to take.
- 04
Compound
Hand over a documented, maintainable theme that compounds instead of decaying — and, where the base is a living vendor theme, a workflow for pulling future updates without losing your customisations.
Proof from real engagements
Conversion design, tested before it ships.
Scope confirmed- A/B testing
- Shopify Markets
- Klaviyo
A family of sleep brands, run as one system.
Scope confirmed- Checkout UI Extensions
- Promotion engine
- A/B testing
A rental operation, bent onto one Shopify store.
Capability engagement · scope confirmed- Rental Flow
- Mechanic
- Shopify Flow
Questions, answered
Do you build from scratch or customise an existing theme?
Both — a ground-up theme when the existing one is beyond repair, or custom sections and theme blocks on a solid base like Horizon or a paid Theme Store theme.
We're on a paid theme — can you customise it without losing updates?
Yes, and it's a core part of how we work. We keep the vendor's files pristine and isolate every customisation, so when the theme's developers release an update we can pull it cleanly. Theme Store partners are required to keep shipping updates, so a naively customised paid theme quietly becomes un-updatable — we engineer specifically to avoid that.
Do you handle migrations off page-builders or legacy themes?
Yes. Moving from a page-builder or a dated theme to clean, maintainable Liquid on a current base is a common engagement.
Is accessibility included?
WCAG 2.2 AA is the baseline, not an add-on — it is engineered in as we build.
See how this pillar applies to your store.
We work as one connected system, not four separate services. The fastest way to see how it applies to your store is a senior-led diagnosis that names your real constraint before any code.