Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Shopify Custom Theme Development Made Simple

Our Shopify theme development agency offer Shopify custom development services to help your store stand out. Instead of using a basic template, we build your Shopify theme from scratch just for you.Shopify custom theme development... Read more
  • 0000 +

    Shopify Stores Served

  • $ 0.0B+ M

    Revenue Generated for Clients

  • 000 +

    Five Star Reviews

  • 00 +

    Ecomx Agency Awards

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Our Clients Get Results

Shopify Plus eCommerce Development Agency
"Redesign Changed Everything"

+310%

Conversion Rate

+275%

Sales Growth

Our Shopify Plus store looked a bit old and wasn’t working as well as it could so we tried theme redesign service by Ecomx Agency. They gave it a fresh, modern update that looks amazing and feels so much easier to use. Since then, way more people are buying from us and our sales have gone way up. Honestly, it changed everything for the better.

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Shopify Plus eCommerce Development Agency
"Great Start with Custom Theme"

3x

Visitors Boosted

+250%

More Sales

Ecomx Agency built our new Shopify theme from scratch, based on our Figma design and it turned out 100% perfect. It looks great on mobile, is easy to update, and matches our brand exactly. We’ve seen more traffic, more sales, and people are really noticing our brand now. Couldn’t be happier.

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What Our Clients Are Saying

★★★★★ 4.9 from 580 reviews
Shopify Plus eCommerce Development Agency
Alexander Anderson
eCommerce Manager – Man Scaped
These guys are incredible

Migrating our whole WordPress site to Shopify Plus felt like a big risk as we were worried about losing traffic, SEO, and the look of our store. But the Ecomx Agency made it easy. They took care of everything, nailed the design, and we didn’t lose any rankings. They made a tricky job feel simple. I'm really happy with how it all turned out.

Shopify Plus eCommerce Development Agency
Lia Mchugh
Co-founder – Fashion Nova Clothing
Sales up after conversion optimization

We knew our store needed a boost, but we didn’t realize how much until Ecomx Agency stepped in. They focused on conversion rate optimization—fixing our layout, checkout, and user flow. The changes worked fast. Conversions went way up. These guys know how to turn visitors into buyers.

Shopify Plus eCommerce Development Agency
Daniel Roberts
Success Manager – Fresh Meal Plan
From unseen to rank #1 on Google

We were tired of relying on paid ads to drive traffic, so we brought in Ecomx Agency to help us with SEO. Honestly, best decision we ever made. They built a strategy from scratch, optimized everything, and now we’re ranking on page one for some seriously competitive keywords. All organic, all real.

Ten Tree Scales Up with Shopify Plus CRO by Ecomx Agency

"Our move to Shopify Plus came with a need to maximize performance and Ecomx Agency nailed it. Their CRO experts fine-tuned our store to increase conversions across the board. We’re seeing better metrics, more sales, and a much smoother user journey. They're best!"

Shopify Custom Theme Development Services

Harper Mitchell

Senior Marketing Manager

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Cow Boy – Shopify Custom Theme Development

"We needed a custom theme that felt like us, and Ecomx Agency totally got it. They built a clean, beautiful Shopify store that works perfectly across all devices. The whole process was easy, and their team was super responsive the whole way through."

Shopify Custom Theme Development Services

Jack Walker

Chief Operating Officer

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Kylie Cosmetics thrives with strong SEO Optimization

"Partnering with Ecomx Agency brought great results for Kylie Cosmetics. Their SEO strategies helped us reach the right audience, boost visibility, and increase conversions. The team was easy to work with and focused on delivering real results. We’re very happy with the outcome!"

Shopify Custom Theme Development Services

Rose Bella

Head of Department

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

GLD Jewelry Achieves Success with Ecomx Agency’s SEO

"Collaborating with Ecomx Agency has really helped GLD grow. They improved our search rankings, brought in more customers, and increased our sales. Their SEO approach was simple, powerful, and delivered great results."

Shopify Custom Theme Development Services

Jeff Malone

Brand Manager

Shopify Ecommerce Consultant Services Ecomx shopify plus agency

Graze Gets a Fresh Look with Shopify Branding & Design

"Our business wanted a fresh, modern identity for our Shopify store, and Ecomx Agency delivered. Their branding and design team nailed the look and feel we were going for. It’s beautiful, consistent, and most importantly, it resonates with our customers."

Shopify Custom Theme Development Services

Lucas Bennett

Co-founder

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Alo Yoga Sees Major Growth with Shopify CRO by Ecomx Agency

"We partnered with Ecomx Agency to improve our Shopify conversion rate, and the results were better than we imagined. They optimized every touchpoint of our funnel, helping us turn more visitors into buyers. Their strategy was clear, data-backed, and seriously effective. Highly recommend!"

Shopify Custom Theme Development Services

Ryan Cole

Head of Ecommerce

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

KITH, a Leading Streetwear & Lifestyle Brand, Grows Online with SEO

"Ecomx Agency helped sharpen our SEO game and grow our online reach. Their team understood our brand and delivered results—more organic traffic, stronger visibility, and real impact on sales. Clean, professional, and on-point from start to finish."

Shopify Custom Theme Development Services

Olivia Harris

Digital Marketing Manager

Los Angeles SEO Agency

Parachute Home – Shopify Plus Design & Development

"My business needed a Shopify Plus store that looked great and worked even better. Ecomx Agency built exactly that. They designed a site that feels modern and runs fast and my customers love it. Super happy with the results!"

Shopify Custom Theme Development Services

Michael Grant

Co-founder

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

ColourPop Smoothly Migrates to Shopify

"We were nervous about moving our whole site to Shopify, but Ecomx Agency made it simple. They handled the full migration, kept everything on track, and made sure we didn’t lose a thing. It was smooth, quick, and way less stressful than we expected."

Shopify Custom Theme Development Services

Olivia Chen

Ecommerce Manager

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Articture Sees Real Results with SEO

"Thanks to Ecomx Agency, our website started showing up higher on Google and bringing in more shoppers. Their team made SEO easy to understand and handled everything for us. We’ve seen real growth in traffic and sales since working with them!"

Shopify Custom Theme Development Services

James Thompson

CEO & Founder

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

SEO That Delivered for Fresh Meal Plan

"Working with Ecomx Agency was a great choice. Their SEO strategies boosted Fresh Meal Plan’s organic traffic, improved keyword rankings, and increased conversions. The process was smooth, transparent, and focused on results. Highly recommend!"

Shopify Custom Theme Development Services

Lia Mchugh

Brand Manager

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Missoma – Shopify Monthly Maintenance & Support

"Ecomx Agency has been amazing for ongoing support. Any time we need updates or fixes, they’re right there to help. It’s such a relief knowing our Shopify store is in good hands. Great service, month after month."

Shopify Custom Theme Development Services

Sophia Blake

Operations Manager

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Our Latest Custom Website Design Projects

Shopify Custom Theme Development Services

Shopify Conversion Rate Optimization

Shopify Custom Theme Development Services

Shopify Custom Theme Development

Shopify Custom Theme Development Services

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify Plus Design & Development

Shopify Custom Theme Development Services

 Shopify Migration Service

Shopify Custom Theme Development Services

Shopify Plus Design & Development

Shopify Custom Theme Development Services

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify Plus Design & Development

Shopify Custom Theme Development Services

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify Monthly Maintenance & Suppor

Shopify Custom Theme Development Services

Shopify Custom Theme Development

Shopify SEO Optimization

Shopify B2B Wholesale Channel ecomx shopify plus agency

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify Migration Service

Shopify Custom Theme Development Services

Shopify Monthly Maintenance & Support

Shopify Custom Theme Development Services

Shopify Conversion Rate Optimization

Shopify Custom Theme Development Services

Shopify Custom Theme Development

Shopify Custom Theme Development Services

Shopify Conversion Rate Optimization

Shopify Custom Theme Development Services

Shopify SEO Optimization

Shopify Custom Theme Development Services

Shopify Plus Design & Development

Shopify Custom Theme Development Services

Shopify Branding & Design

Shopify Custom Theme Development Services

Shopify Conversion Rate Optimization

Shopify Custom Theme Development Services

Shopify SEO Optimization

The world’s most innovative brands 🤝 work with Ecomx Agency

Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services
Shopify Custom Theme Development Services

Shopify Custom Theme Development Services & Beyond

Shopify Custom Theme Development Services

You’re not just getting a Shopify theme developer – you’re getting your brand’s story told through design. Our Shopify agency custom-build your Shopify theme from the ground up, shaping everything from your homepage to your checkout. Imagine your store loading in a blink, with layouts so intuitive your shoppers don’t even have to think. That’s what we aim for – a seamless, branded experience that turns curious clicks into happy purchases. Our Shopify custom web development process brings your vision to life.

Shopify Custom Theme Development Services

Sometimes your store just needs a few smart nudges to get more people to hit “Buy Now.” We dig into how your visitors behave where they click and when they bounce then do theme customization of what’s not working. Maybe it’s your call-to-action buttons that aren’t loud enough. Or your product layout could use a little love. With A/B testing and data-led changes, we boost your conversion rate beyond the typical 2–3%. Picture this: a subtle change in your checkout flow that lifts sales by 10%. That’s the power of CRO, small wins that add up to big gains

Shopify Custom Theme Development Services

As a Shopify plus agency, we research high-intent keywords relevant to your product or service, polish your titles and meta descriptions, and make sure your site’s structure is crystal clear for search engines. Our Shopify web development agency ensures your backend and frontend are optimized for discoverability. Think of SEO as a map, and we’re making sure Google has perfect directions to your store. The result? You rank higher, get more free traffic, and win shoppers who are already looking for what you sell.

Shopify Custom Theme Development Services

Sleep easy knowing your store’s always in good hands. After your site’s live, we don’t disappear. Shopify constantly rolls out updates and we’re on top of them. From security patches to performance tune-ups, our Shopify plus partner agency keep your store humming behind the scenes. Ever hit a snag or want to tweak something? Our support team is friendly, fast, and knows your store inside out. We’re like your technical pit crew – always ready, so you can focus on growing your business. Count on our Shopify development agencies for ongoing success.

Shopify Custom Theme Development Services

Running a store means juggling tools, such as CRMs, email marketing, accounting, shipping, and more. So, we can connect your required tools efficiently with our eCommerce solutions. We make them linked to each other so you don’t have to. Orders sync, inventory updates automatically, and data flows like clockwork. It’s like setting up an automatic transmission for your business. You shift less. Things just move. Our Shopify custom development ensures every tool fits perfectly with your unique store setup.

Shopify Custom Theme Development Services

Now you can switch to a new platform without missing a sale. Switching platforms sounds scary but we make it smooth. Whether you’re leaving WooCommerce, Magento, or a clunky old Shopify theme, we migrate everything: products, customers, orders, content even your SEO. You’ll get a fresh design on Shopify’s latest tech, and we’ll make sure your traffic and sales don’t skip a single sale. It’s like renovating your shop without closing the doors. As a trusted Shopify design company, we do Shopify store setup perfectly.

Shopify Custom Theme Development Services

We build beautiful, high-performing Shopify Plus stores that help you grow. Whether you're launching something new or giving your current store a full makeover, Ecomx Agency takes care of everything: design, setup, layout, and features. We don’t just make it look good, we make sure it works smoothly for your customers too. Need custom pages, faster speed, or better mobile design? We’ve got you. Our goal is to build a store that’s easy to use, matches your brand, and helps you sell more.

Shopify Custom Theme Development Services

Got wholesale customers? We’ll tailor Shopify to treat them right so that you can sell like a pro to businesses and bulk buyers. Set up private logins, custom pricing, net terms, and even quick reorder features all done into your store. Your B2B buyers will love the smooth, self-serve experience – and you’ll love how easy it is to manage. It’s wholesale selling, minus the hassle. Our Shopify store developers specialize in B2B-ready Shopify solutions.

Our Custom Development Process

Here’s how we bring your Shopify store to life.

Creating your online store is an exciting journey! We’ve made it super easy to understand by breaking it down into simple stages.

Shopify Custom Theme Development Services
1. Discovery & Planning

We chat, understand your goals, and plan the best path for your store.

Shopify Custom Theme Development Services
2. Theme UX/UI Design

We design a store that looks amazing and feels easy for your customers to use.

Shopify Custom Theme Development Services
3. Theme Development

We build your store using clean, fast, and reliable Shopify Plus code.

Shopify Custom Theme Development Services
4. Quality Testing

We test everything to make sure your store works perfectly on every screen and device.

Shopify Custom Theme Development Services
5. Training & Documentation

We show you how to use your store easily, with guides and one-on-one help.

Shopify Custom Theme Development Services
6. Ongoing Support

Need updates or help later on? We’re here whenever you need us!

Why Partner with Us for Shopify Store Development Services

Shopify Custom Theme Development Services

Specialized Shopify Agency

Our entire team at Ecomx Agency lives and breathes Shopify, providing expert Shopify store development services tailored to your business. No guesswork and no shortcuts. Just smart, seamless stores that load faster, look sharper, and convert better. Your business deserves a team that’s all-in on what works.

Shopify Custom Theme Development Services

Proven Track Record

Having worked with 250+ Shopify stores, we can help turn your traffic into conversions and browsers into loyal buyers with our proven Shopify store design services. We’re not here to impress but deliver outcomes. One pet brand boosted sales by 40% after a redesign. Looking for real growth? Contact us today for quick chat about your idea!

Shopify Custom Theme Development Services

Skilled & Experienced Team

Our team includes experienced professionals with over 15 years of expertise in Shopify development, design, and optimization. From clean design to complex integrations, our Shopify store developers have built smooth, fast, and reliable Shopify stores.

Shopify Custom Theme Development Services

End-to-End eCommerce Solutions

You won’t need five different teams for one Shopify store. From branding to launch and beyond, we handle everything — design, development, SEO, marketing, support. As a trusted Shopify Plus development agency, we ensure your store is seamless and scalable. This means fewer delays, fewer handoffs, and more consistency.

Shopify Custom Theme Development Services

Daily Project Updates

Our Shopify web design agency keep you informed with regular updates, previews, and progress reports, ensuring full visibility at every stage. Our clear deadlines and streamlined process make the experience stress-free. Need to tweak a design or share feedback? You're involved from start to finish — with continued support even after the project is complete.

Shopify Custom Theme Development Services

Excellent Customer Support

We don’t disappear after launch. Whether it’s a quick fix or a fresh idea, we’re here to help. Our support feels like having a Shopify web development agency on speed dial — fast, friendly, and ready when you need us. Our motive at Ecomx Agency is treat your store like our own, because your success is ours too.

Shopify Custom Theme Development Services

6 Reasons You’ll Love a Shopify Custom Theme by Ecomx Agency

Shopify powers over 4 million online businesses worldwide, making it one of the biggest ecommerce platforms out there. If you want your store to truly stand out, investing in a customized theme is often a smarter move than using a generic template. A tailor-made theme lets your store showcase your brand’s unique personality, handle traffic spikes smoothly, and boost both performance and sales.

Our Shopify expert agency specialize in building Shopify custom themes development services that do exactly that. Here are six key benefits of Shopify custom theme development, backed by recent data and expert insights.

Win Trust in a Blink

Everybody says don’t judge a book by its cover but in reality, we all do this. So, the point is your shoppers do the same. In just 0.05 seconds, people decide if your site feels legit—and 94% of that is design.

With our Shopify Website Design and Theme Customization services, your homepage, fonts, and images tell your brand’s story at first glance.

Think Kylie Cosmetics: their custom look sparked launch-day craziness and boosted buyer confidence, thanks to expert Shopify Theme Developer skills.

Freedom to Build Boldly

With a custom Shopify theme, you’re not stuck using someone else’s design. You can create any layout, pick any colors, and add features that fit your brand perfectly. This helps your website look unique and stand out from others.

Shopify experts say, “front-end, product-specific journeys and customizations improve conversion”. This means custom themes let you make shopping easier and more personal for your customers.

Shopify custom theme development services can build help you build own menus, special deals, or even use advanced setups that make the site feel fresh and simple to use. On the other hand, ready-made themes make you change your brand to fit their design. With a custom theme, you get a blank page that can grow and change exactly how your business does.

Fast Feels Better

Slow pages = lost sales. According to hubspot, 3‑second load instead of 1 sends 32% of visitors to other websites. And a 1‑second site converts 2.5× more than a 5‑second one.

Our theme optimization helps with clean code, tiny images, lazy-loading—so your store flies, even during flash sales.

Smooth from Start to Finish

Nothing kills sales like tricky navigation. Sites without good filters see 67–90% rejection, while those with smart setups drop to 17–33%.

Ecomx Agency, known for its Shopify Store Setup and Shopify Marketing expertise, can enhance usability of your store.

With our advanced Custom Coding services, you get mega-menus, smart search, and one-page checkouts that feel like a stroll in the park. If you are wondering how to modify Shopify theme elements yourself—skip the code headaches and let our skilled team help.

Built to Scale

Just look at one of our clients Gymshark — their custom Shopify Plus setup handled a £41 million sales rush in 2017 with no problems.

So, if you are also dreaming of global domination, as a trusted shopify plus development agency, we can build themes that grow with you.

Get Found Without Ads

Organic search drives about 33% of e commerce traffic, and Google shows over half of new-brand discoveries.

Our custom ecommerce development services weave in schema markup, mobile-first layouts, and optimized meta tags. Faster pages mean happier shoppers and better Core Web Vitals—so you win SEO and sales in one go.

Yasin Shahzad

Shopify eCommerce Expert

Shopify Custom Theme Development Services

Jennifer Martin

Senior Success Manager

Shopify Custom Theme Development Services

Eva Brooke

Merchant Success Director

Shopify Custom Theme Development Services

Josh Allan

Director of Operations

Shopify Custom Theme Development Services

FAQs About Our Shopify Store Development Services

If you want your store to look great, work fast, and give shoppers a smooth experience, Shopify theme development is worth it. We’ve built themes for over 250 Shopify stores, and we know how much of a difference a well-designed site can make.

Templates are faster and cheaper at first—but they’re made for everyone. A custom Shopify development approach tailors every detail to your brand, your products, and your goals.

That’s why our clients have made over $70 million in sales through stores we helped build.

Make sure it works well on mobile, loads fast, and fits the kind of store you want to run. It should be easy to customize and work with the apps you need.

After working on dozens of Shopify store development services engagements, Ecomx Agency have learned that the right theme can save a lot of trouble later.

Before big sales, launches, or holiday seasons is ideal.

But even outside peak times, if your pages are loading slowly or your conversion rate has dipped, now’s a great time to tap into our Shopify store design services for speed boosts and UX enhancements.

Ecomx Agency diagnose exactly why shoppers drop off and apply fixes from a Shopify design company perspective: faster checkout flows, clearer calls-to-action, trust badges, and streamlined steps. Small adjustments here can deliver noticeably higher completed-order rates.

If you’re not starting from scratch but want to customize an existing theme, our Shopify store developers can turn projects around in 1–6 weeks depending on the scope.

Minor visual updates are typically quicker, while adding new templates, sections, or advanced features requires more time.

Yes, you can move to Shopify from any other platform. And we specialize in creating a seamless Shopify custom storefront.

Migrating from WooCommerce, Magento, or BigCommerce involves mapping your data, rebuilding your store design, and optimizing for performance and SEO, all with minimal downtime.

Absolutely. You can update text and images anytime yourself, or lean on our Shopify web development agency for more extensive design updates and feature rollouts. Your store can always grow and improve.


Ecomx Agency always provide a clear quote and plan up front with no surprises, just well-executed design and rock-solid performance.

  • Small edits (fonts, colors, minor layout tweaks): around $2,000 via our custom Shopify development services
  • Bigger changes (new layouts, app integrations, advanced sections): $5,000 – $10,000, delivered by one of the top Shopify development agencies
  • A full custom theme from scratch: starts around $10,000, with optional Shopify plus development or support from a dedicated Shopify plus development agency for enterprise-grade stores

Ecomx shoify plus ecommerce design and development agency Yasin

Want customization in your Shopify store? Shopify Migration Experts Agency Ecomx shopify plus agency

Let’s discuss your project.

Shopify Custom Theme Development Services Live Chat