Shopify Service

Shopify Theme
Development &
Customisation

Your theme is what every shopper sees the moment they land. We've been writing Shopify Liquid since 2017, building themes from scratch and reworking existing ones into something that actually fits the brand. Our New York team doesn't outsource. Fast, clean, built to work on every device.

500+
Themes built & customised
OS 2.0
Online Store 2.0 certified
2017
Shopify Partner since
1-8wk
Depending on scope

Custom build or deep customisation: we do both

Every brand's situation is different. Some want a codebase with nothing borrowed from an existing theme. Others have a premium theme they like and want taken much further than any settings panel allows. We've done both hundreds of times. And we'll tell you honestly which route makes sense for what you're building, including when the cheaper path is genuinely the right one.

Option A

Custom Theme: Built from Scratch

Built from the ground up in Liquid, HTML, CSS, and JavaScript. No base theme, no inherited quirks. The codebase is yours outright. Every template, section, and layout exists because it serves your brand. Not because it shipped with someone else's theme. Take a look at our portfolio to see what that looks like in practice.

Best suited for:
Brands with unique design requirementsComplex custom functionalityShopify Plus merchantsHeadless-adjacent builds
From $3,000
Option B

Theme Customisation: Existing Theme Transformed

You pick the theme, or we suggest one, and we take it apart and rebuild the parts that don't work for you. Layouts adjusted, sections added, pages redesigned, brand identity applied all the way through. The result doesn't look like the demo. It looks like your store. We've done this kind of work for projects like Bubbaroo.

Best suited for:
Faster timelinesBudget-conscious projectsAdding specific featuresPartial redesigns
From $500

Every theme engagement includes full Liquid craftsmanship

From the first line of code to the final cross-browser check, our 30+ in-house developers build themes that are structurally sound, visually accurate, and tested on real devices. Nothing ships until it's right. That's been our standard since we started in 2011, and it's part of why we've held a 98% client retention rate.

Online Store 2.0. Every theme we build uses JSON templates, modular sections, and flexible blocks. Your team can rearrange layouts, swap content, and manage pages in the editor. No developer ticket needed for everyday updates. If you're on Shopify Plus, we take full advantage of the additional customisation headroom that gives you.

01
Liquid Theme Development
Structured, well-commented Liquid code written to Shopify's own standards. Any qualified Shopify developer should be able to pick it up and extend it. We don't write code only we can maintain. That's a trap we'd never put you in.
02
Custom Sections & Blocks
Reusable Liquid sections built with your content team in mind. They show up in the Shopify editor with their own settings panels: drag, drop, configure. No code needed after we hand it over.
03
Product Detail Page (PDP) Development
PDP templates built for how your products actually need to be shown: variant selectors, media galleries, custom tabs, trust signals, sticky add-to-cart. The default template rarely does the job well. A properly built one usually does.
04
Cart & Checkout Customisation
Cart drawer or page redesigns, upsell blocks, gift message fields, checkout branding. All done within Shopify's permitted limits. We know where those limits are, so we don't waste your time on things that won't survive an update.
05
Mobile-First Responsive Build
More than half of Shopify traffic comes from mobile. We start there and work up, testing on real iOS and Android devices, across all major browsers, from small phones to wide desktop screens. Not just a desktop view with a resize handle dragged across.
06
Performance & SEO Foundations
Deferred scripts, lean CSS, optimised images, semantic HTML, proper heading order, Core Web Vitals benchmarking. All built in from day one. If you need deeper work after launch, our speed optimisation service handles the heavier lifting.
500+
Shopify stores built and customised since we opened in 2011
OS2.0
Every build we ship uses Online Store 2.0 architecture
5.0
5.0 rating across 37 verified reviews on Shopify Partner Directory
1–8wk
Delivery window from a small tweak to a full custom build

Your theme is the most visible layer of your Shopify store

It's what every visitor touches the second they arrive. A well-built theme reduces bounce rate, holds attention longer, and makes the buying process feel natural. A poorly built one, even a good-looking one, costs you sales quietly, every single day.

01
Online Store 2.0 architecture
Every theme we build uses Shopify's OS 2.0 JSON template structure. Your team can manage pages, move sections, and update content in the editor without filing a dev ticket every time something needs to change. That's how it's supposed to work.
02
Performance-conscious development
Lean Liquid, deferred scripts, optimised assets from the start. Most theme performance problems come from code written without page speed in mind. We write with it in mind from line one. Pair this with our speed optimisation service if you need a full audit too.
03
Built for your team to manage
The custom sections we build come with settings panels your non-technical team can actually use. Swap images, change copy, adjust layout. All in the Shopify editor, all without touching a file. We build for the people who'll maintain it, not just the people who'll approve it.
04
Safe, staged development
All work happens on a duplicated theme. Your live store keeps running exactly as it is throughout the project. You review changes on a preview URL before we publish anything. There's no moment where your store is broken or at risk.
05
Future-proof & maintainable
No proprietary patterns, no obscure dependencies, no code that requires a handoff call to understand. Any competent Shopify developer can pick up our work and run with it. That matters a lot when your business grows and your needs shift. We also offer ongoing support if you'd rather keep us on hand
06
Pixel-perfect implementation
Every spacing value, font size, colour token, and interaction state from your design file gets built exactly as drawn. Not close, not "good enough for most screens." Exactly as specified. If it's in the design, it's in the code.

All major Shopify themes: and custom builds

We've worked across Shopify's full theme ecosystem: free themes, premium ones, third-party builds, and full custom work. Not sure which theme to start with? We'll give you a straight recommendation based on your products, brand, and budget. No upsell agenda, just an honest answer. You can also browse our portfolio to see themes we've worked with in real projects.

Shopify Free
Dawn
Shopify's flagship OS 2.0 theme. Minimal, fast, and an excellent base for heavy customisation.
Shopify Free
Sense / Craft / Refresh
Shopify's modern free theme family. Clean structures with good customisation headroom.
Premium
Impulse
Popular for fashion and lifestyle brands. Rich media sections and strong collection page layouts.
Premium
Prestige
Luxury and high-end brands. Editorial layouts, full-bleed imagery, and refined typography.
Premium
Motion / Symmetry
Animation-forward themes suited to brands that want energetic, visually active storefronts.
Custom Build
Fully Custom Liquid
Built entirely from our own Liquid architecture when no existing theme meets your requirements.

How every theme project runs

Whether it's a minor customisation or a full custom build, every project follows a clear, milestone-based process. You always know what's happening and what comes next. We don't leave people guessing.

01
Brief & Scoping

We talk through your requirements in detail: which pages need work, what functionality is needed, any existing design files or brand guidelines, and your timeline. You get a clear written scope of work before a single line of code is written.

02
Design Review or Creation

For customisations, we review your existing theme and brand assets. For custom builds, our designers produce wireframes and high-fidelity mockups for sign-off. Nothing moves to development without your explicit approval of the visual direction.

03
Liquid Development

Our developers build on a duplicate theme, keeping your live store untouched throughout. We push regular updates to a staging preview URL so you can follow progress and give feedback during the build, not just at the end when it's too late to change course.

04
QA Testing & Go-Live

We run thorough cross-browser and cross-device QA before publishing anything. On launch day, we coordinate the theme activation, confirm all functionality is working, and stay available for any immediate post-launch queries or adjustments.

Frequently asked questions

Everything you need to know about Shopify theme development and customisation. A question not answered here? Ask us directly.

Ask us directly
What is Shopify theme development?

Shopify theme development is the work of building or modifying the front-end design and functionality of a Shopify store using Shopify’s Liquid templating language, alongside HTML, CSS, and JavaScript.

It covers a wide range of work, from creating a fully custom theme from scratch to making targeted changes to an existing one. That might mean redesigning a product page, adding custom sections and blocks, rebuilding a cart experience, or building interactive features that aren’t available in the default theme. Our store design service covers the full end of that spectrum when you need everything built at once.

What is the difference between a custom theme and a customised theme?

A custom Shopify theme is built entirely from scratch in Liquid with no base theme. You get complete creative and structural freedom: every template, section, and layout is built to your exact specifications. It’s the right choice when your brand needs something a standard theme can’t support.

A customised theme starts with an existing Shopify theme (such as Dawn, Impulse, or Prestige) and is modified extensively, adjusting layouts, redesigning pages, adding custom sections, and applying your brand identity throughout. It’s typically faster and more cost-effective, and it still delivers a fully on-brand result. We’ve used both approaches across 500+ stores. You can see some examples in our portfolio.

How much does Shopify theme development cost?

It depends entirely on the scope:

Minor customisations (adjusting a section, tweaking fonts and colours, adding a small feature) typically start from a few hundred dollars.

Deep theme customisation or a significant redesign of an existing theme typically ranges from $1,000 to $5,000.

A fully custom Shopify theme built from scratch typically ranges from $3,000 to $15,000+ depending on the number of templates, complexity of design, and custom features required.

We give you itemised, transparent quotes after understanding your exact requirements. No guesswork, no surprises.

How long does Shopify theme development take?

Timeline depends on scope:

Minor customisations: 1 to 5 business days.

Significant customisation or page-level redesign: 2 to 4 weeks.

Full custom theme from scratch: 4 to 8 weeks from design sign-off to delivery, including QA testing.

Every project starts with a detailed scope document that includes a milestone-based timeline, so you know what’s happening and when to expect each stage. We don’t leave people in the dark.

Will you work on my live store, or will there be downtime?

We never work directly on your live theme. We always duplicate your current theme first and develop all changes on the copy, which is completely invisible to your customers.

Your live store keeps running without interruption throughout the entire development period. When the work is done and you’ve reviewed and approved it, we publish the updated theme. The switchover takes seconds and there’s no downtime.

Which Shopify themes do you work with?

We work with all Shopify themes, including Shopify’s free themes (Dawn, Sense, Craft, Refresh, Crave) and all premium themes from the Shopify Theme Store, including Impulse, Prestige, Motion, Symmetry, Debut, Narrative, and others.

We’re also experienced with popular third-party themes sold outside the official store. For fully custom builds, we develop our own Liquid theme architecture from scratch, built to Online Store 2.0 standards.

If you’re not sure which theme to start with, we’ll give you a recommendation based on your industry, design requirements, and budget in our first conversation.

Can you add custom sections to my Shopify theme?

Yes. Custom section and block development is one of the most common requests we handle. We build custom Liquid sections that show up in your Shopify theme editor with a settings panel. Your team can adjust content, layout, and options without touching any code.

Common custom sections we build include editorial content blocks, featured collection grids, custom hero sections with video support, countdown timers, testimonial carousels, product comparison tables, lookbook layouts, custom product tabs, and more. If you can describe it, we can build it.

Will theme customisation affect my store's SEO or page speed?

Done properly, theme development should improve your store’s SEO and performance, or at minimum hold it steady. Our developers write clean, efficient Liquid code that avoids unnecessary scripts and render-blocking CSS, follows semantic HTML conventions, and is tested against Core Web Vitals benchmarks.

If your existing theme has code that’s hurting your performance or SEO, we’ll identify and flag it at the start of the project. We also offer a dedicated speed optimisation service if a more thorough performance overhaul is needed.

What is Online Store 2.0 and why does it matter?

Online Store 2.0 (OS 2.0) is Shopify’s current theme architecture, introduced in 2021. It replaced the older static section system with a flexible JSON template structure that lets sections and blocks be used on any page, not just the homepage.

It gives merchants much greater content management flexibility. You can rearrange page layouts, add or remove sections, and customise any page directly in the editor, without needing a developer for everyday content changes.

Every theme we build or significantly customise is structured to OS 2.0 standards. If your current theme is still on the older architecture, we can migrate it as part of a redesign project.

Can you redesign just one page of my store without changing everything?

Yes. Targeted page-level redesigns are a very common project type for us. We regularly rebuild specific templates: a product detail page, a collection page layout, a homepage template, or a cart page, without touching the rest of your store.

It’s a low-risk way to improve specific pages that aren’t performing. A single PDP redesign can have a real impact on conversion rate if the current template isn’t showing your products properly. Check out our Lumination project as an example of targeted theme work that moved the needle.

What our clients say about working with us

View all on Shopify
★★★★★

"Axis Web Art developed our website. They are easy to work with, thorough, and responsive. We have been very happy with their service."

GL
Garrett Leather
Roberta Sand, Marketing Director
★★★★★

"Great work, they know how to change your theme effectively without any issues. Fixed a few tiny issues moments after identifying them. Always a pleasure to work with this team of highly skilled players."

TC
Timothy
Founder, Timothy De Clue Collection
★★★★★

"We crafted a soothing online shopping experience for Bubbaroo, a leading Australian baby sleep bag brand. Our Shopify store design and development focused on safety, comfort, and parent peace of mind."

BU
Bubbaroo
Nicole Cassey, Founder
Start your project

Ready to build or transform your Shopify theme?

Tell us what you need — a minor customisation, a full page redesign, or a theme built from scratch. We will scope it clearly and get it done properly.

No-obligation conversation · Response within 24 hours · Official Shopify Partner since 2017