Custom Shopify development
Custom Shopify development services for stores that outgrow a theme.
Custom Shopify development takes your store beyond default templates — bespoke themes built in Shopify's Liquid language, custom apps that automate your workflows, and API integrations for ERP sync, subscriptions and headless commerce. PRP Webs engineers all three.
Fixed, itemised quote before work starts · you own the code
Last updated: October 2026
Tell us what you need built
We reply within one business day with an itemised quote, milestones and a timeline.
Brands and teams we’ve worked with
The three pillars of custom Shopify development
1. Custom theme development
Bespoke Online Store 2.0 themes coded in Liquid and JSON templates — dynamic drag-and-drop sections your team can edit without code, responsive on every device, and designed for conversion.
2. Custom app development
Private apps built only for your store — admin extensions that fit your team's workflows, API integrations to ERP/CRM/PIM, and checkout UI extensions and Functions for personalised buyer journeys.
3. Headless & custom storefronts
For total front-end control, we build on the Storefront API with React and Next.js — sub-second custom storefronts, mobile apps and omnichannel experiences powered by your Shopify backend.
Plus: integrations & checkout
Real-time GraphQL connections to NetSuite, Salesforce and fulfilment systems, and custom checkout extensions and post-purchase upsells that lift AOV.
Shopify theme development & customization services
Not every store needs a scratch build. A large share of our work is Shopify theme customization — taking the theme you already run (Dawn, Impulse, Prestige, or any premium theme) and reshaping it around your brand and conversion goals: new sections, custom product page layouts, mega menus, bundle builders and speed cleanup, all done without breaking theme updates.
When a theme genuinely limits you, we build custom Shopify themes from scratch on Online Store 2.0 — every section editable by your team, no bloat from unused features, and Core Web Vitals budgets enforced from the first commit.
All of it is engineered by our 30+ in-house team in Jaipur, India — which is why brands in the US, UK and Australia get senior Shopify developers at India-based rates. Not sure which theme to start from? See our comparison of the best Shopify themes for conversion.
How long custom Shopify development takes
Typical timelines from our own projects. Every project still gets its own fixed plan and itemised quote before work starts.
| What you need | Typical time | What decides it |
|---|---|---|
| Customised ready-made theme (new store) | 2–3 weeks | How quickly products, photos and copy arrive |
| Fully custom design built from Figma | 3–5 weeks | Number of templates and review rounds |
| Custom app for one store | 1–2 weeks | How much the app has to do and what it connects to |
| Public app for the Shopify App Store | 3–6 weeks to build, then Shopify review | Review took us one to two months for each of our own apps |
| Integration with an ERP, warehouse or other channel | Quoted per project | The other system and its API |
When you need custom development, and when you don't
You need custom work when:
- A feature your business depends on exists in no theme or public app.
- Your design has to match your brand exactly, not "close enough".
- The store has become slow from stacked apps and theme bloat.
- Shopify has to talk to an ERP, CRM, warehouse or another sales channel.
- You sell in a complex way: bundles, subscriptions, B2B pricing or hundreds of variants.
The hardest part of custom development is deciding what not to build. A brand selling on its own store, Amazon, Flipkart and Blinkit from one warehouse asked us for a custom app to warn them before products ran out. We built it with Shopify Flow instead: it uses the last three months of sales to flag what will run out in the next 10 days and emails the team. No app to maintain, and it is still running. If a theme, Shopify Flow or an existing app does the job, we will tell you, even though it means less work for us.
“We would not be The Lip Bar without them.”
Things we have built that Shopify does not do on its own
Fabric sold by the metre, for Fabriclore
Shopify counts stock in whole units. For Fabriclore, a Jaipur fabric brand, we made the product, collection and cart pages sell in 0.5 metre steps, with price and stock calculated correctly behind the scenes, and connected the store to the stock system their shops use.
A weekly meal menu with subscriptions, for TSquared Eats
Customers pick dishes for each day of the week. The order is built at the back end and passed to the kitchen’s own delivery system, with subscriptions managed in the same flow.
Health tests, lab kits and a custom product
A probiotics brand needed a subscription, a test kit sent out and tracked back to the lab, a lab report, and a product made from the result. We connected the store, the lab and the production system.
Headless WordPress with headless Shopify
A content-heavy history site runs its pages and articles on WordPress and its products, cart and checkout on Shopify, behind one custom front end.
A thank-you page that sells
A personal message and photo from the founder on the thank-you page, followed by a one-tap offer to add a discounted product to the order just placed.
A clinic’s store connected to its appointment software
A clinic runs its appointments in its own clinic software. We integrated its Shopify store with that system, and handled the work on the clinic side as well as the Shopify side.
An influencer programme inside Shopify, for Gemanifest
Each influencer gets their own coupon and earns commission on the sales they bring. Their reels appear on the brand’s Instagram and on the store.
How long a new store takes
Store on a prebuilt theme
2 to 3 weeks
We set up a proven theme, configure it for your brand and products, and launch.
Custom design from Figma
3 to 5 weeks
A design made for your brand, built as a theme with sections your team can edit. The range depends on how quickly content is reviewed on your side.
New stores are built on a Shopify development store under our Partner account, so you pay Shopify nothing until the day you go live. For an existing store we send a collaborator request and walk you through accepting it.
Frequently asked questions
What is custom Shopify development?
Custom Shopify development is building a store beyond default templates — bespoke themes coded in Shopify's Liquid language, custom apps that automate workflows, and API integrations for inventory, subscriptions or headless commerce. It is how growing brands get features standard themes and public apps cannot provide.
What is included in custom Shopify development?
Custom Shopify development covers bespoke theme design and build, private app development, Storefront API and GraphQL integrations, ERP/CRM/PIM sync, performance optimisation and custom checkout extensions — all built around your specific business logic.
Can you build a fully custom Shopify theme from scratch?
Yes. We design and build pixel-accurate custom themes using Online Store 2.0 architecture — sections, blocks and metafields — so merchants can edit freely in the Theme Editor without touching code.
Do you integrate Shopify with third-party systems?
Yes. We connect Shopify to ERPs (NetSuite, SAP), CRMs (Salesforce, HubSpot), PIMs (Akeneo) and fulfilment systems via Shopify's GraphQL Admin API or custom middleware.
How do you protect SEO during a custom build?
We maintain all existing URL structures, set canonical tags correctly, ensure structured data carries over and run a pre-launch crawl against the baseline so no ranking equity is lost.
How long does custom Shopify development take?
A store on a customised ready-made theme takes us 2–3 weeks, and a fully custom design built from Figma takes 3–5 weeks, depending mostly on how fast content and feedback come back. A small custom app for one store usually takes 1–2 weeks. ERP integrations and headless storefronts take longer. You get a fixed week-by-week plan before development starts.
Do you customize existing Shopify themes, or only build from scratch?
Both. Much of our work is customizing the theme a store already runs — new sections, product page layouts, navigation and speed cleanup, done in an update-safe way. We build from scratch when the theme genuinely limits the business, and we will tell you honestly which of the two your store needs.
How much does custom Shopify development cost?
It depends on scope, so we quote fixed prices per project rather than vague ranges — you get a written scope, timeline and price before any work starts. Because our 30+ person team is in-house in India, rates are significantly lower than US or UK agencies for the same senior-level work.
Do I need custom development or is a good theme enough?
A good theme and a few well-chosen apps are enough for most new stores. You need custom development when a feature your business depends on exists in no theme or app, when your design has to match your brand exactly, when stacked apps have made the store slow, or when Shopify has to talk to another system such as an ERP or warehouse. We also tell clients when not to build: often Shopify Flow or an existing app does the job for far less.
Where is your team based?
Our entire development team works in-house from our office in Jaipur, India — no outsourcing or freelancers. We serve clients in the US, UK, Canada, Australia, Singapore and India, with overlap hours for your time zone.
Related services & guides
- Shopify App Development — building App Store & private apps →
- Shopify custom app development: what we learnt building our own apps →
- Headless Shopify development →
- How to create Shopify section schema →
- Metafields in Shopify: a complete guide →
- Working with product metafields in Shopify →
- Shopify theme customization guide →
In their words
Real clients, on camera
\u201cWe would not be The Lip Bar without them.\u201d
\u201cThey\u2019ve been consistently amazing \u2014 their communication, guidance and brilliance.\u201d
An official Shopify Select Partner
Vetted by Shopify and trusted by brands across the US, UK, Canada, Singapore, UAE, Australia and India — with a money-back guarantee and on-time delivery on every build.
Ready for a store that performs?
Tell us what you need — we'll reply with a clear scope and timeline.