Will custom code survive Shopify theme updates?

Yes — custom sections and features are built to Shopify's current theme architecture (Online Store 2.0) so they remain stable through Shopify platform updates.

Can you build this on top of an existing theme we like?

Yes — most custom feature work is layered onto a theme you're already happy with, rather than requiring a full rebuild.

Do custom features slow the store down?

Not if built correctly. The whole point of custom development over app-stacking is avoiding the extra scripts and load-time cost that come with off-the-shelf apps trying to approximate the same feature.

How do we know if a feature needs custom development or just a good app?

If an app genuinely does what you need without excess bloat, we will tell you to just use the app — custom development is worth paying for when the app-store options are all compromises, not by default.

What if we're not sure exactly what we want built?

That is normal — most custom-feature projects start as a rough idea. We scope the actual mechanics together before any development starts, so you know exactly what you are getting.

All services

Shopify Custom Themes & Custom Features

Custom Shopify theme development and bespoke storefront features that off-the-shelf apps and templates can't deliver.

Get a quote WhatsApp instead

Commerce

req/s, zero deadlocks: 15Kreq/s, zero deadlocks
double-charges in production: 0double-charges in production
production systems shipped: 10+production systems shipped
years building for clients: 7+years building for clients

Sound familiar

Signs you need this now.

Every growing Shopify store eventually needs something the app store doesn't sell: a custom filtering system, a bundle builder, a loyalty flow tied to your own business logic. Stacking apps to fake these features usually means slower load times and brittle integrations.

No app does exactly what the business needs

The closest app on the store is a compromise, forcing the workflow to bend around the tool instead of the other way around. Every workaround adds friction for both the team and the customer.

Stacking apps to fake one feature

Three different apps cobbled together to approximate a single custom feature, each adding its own load and maintenance cost. When one updates or breaks, the whole workaround can fall apart.

A feature idea that "isn't really possible on Shopify"

Most custom-feature requests are actually buildable on Shopify's current architecture — they just require custom development instead of an off-the-shelf app. What sounds like a platform limitation is usually just an app-store gap.

Scope

What you get.

Custom Liquid theme development or section extensions

Built to fit cleanly into your existing theme architecture rather than bolted on as a separate system.

Bespoke storefront features

Custom filtering, bundle builders, configurators, or loyalty logic built around your actual business rules.

Shopify Functions and Scripts for custom logic

Custom pricing or checkout logic implemented where Shopify's native extensibility supports it, instead of a fragile workaround.

A performance-conscious build

Built to avoid the app-bloat that usually ships these kinds of features, so the new capability doesn't cost you load time.

Cross-device and cross-browser testing before launch

Verified across the devices your actual customers use, not just a single reference browser.

Proof

Real work, not mockups.

See all work

Custom Shopify Theme

Modish Furnishing

Managing high-resolution product imagery and 3D furniture models without introducing render lag on mobile devices.

94/100
Product Page Speed: +32%
Add-To-Cart Rate

Custom Shopify Theme

Modern Wall Arts UK

Handling localized catalog options and UK tax-compliant checkout routing for an international home decor platform.

+28%
Regional Checkout Conversion: 100%
Tax Accuracy

Engagements

Three ways to work together.

Scoped in milestones, not one large commitment. Every engagement is quoted against a written plan; no figure gets invented before the scope is understood.

Launch Build

Get a real store live

3-5 weeks

Best for: A focused catalog that needs a fast, clean launch without unnecessary scope

Theme customization or build as scoped for this service
Core integrations (payments, shipping, email)
Mobile-first performance from day one
Handover documentation and a walkthrough

Discuss this

Most common

Full Build

The complete store, ready to scale

6-10 weeks

Best for: A complex catalog, custom features, or integrations beyond the standard set

Everything in Launch Build
Custom features and integrations scoped to your workflow
Full on-page SEO and schema implementation
Load-tested for your actual expected traffic and order volume

Discuss this

Growth Retainer

Ongoing feature work and maintenance

Monthly retainer

Best for: A live store that needs continued feature development and upkeep

Ongoing feature development and iteration
Regular performance and security checks
Priority turnaround on fixes
No obligation past a single milestone at a time

Discuss this

How it works

Four steps, no mystery.

Quick scoping call

A short call (or async over WhatsApp) to understand what you're working with and what "done" actually looks like for you.

Fixed scope, no surprises

A clear written plan of what's included and how long it takes, before any work starts.

The actual work

Progress you can see, not a black box. You get updates as milestones land, not just a status report at the end.

Handover

Everything documented and handed over cleanly, with a walkthrough so your team isn't stuck waiting on me for routine changes.

Questions

Frequently asked.

Anything from custom product configurators and bundle builders to loyalty logic, custom filtering/search, and checkout customizations via Shopify Functions.

Start here

Tell me what you're dealing with.

Send a message and get a real reply within 24 hours, not an automated sequence.

Prefer email? info@hasnain.io

Or WhatsApp directly, same link as above