Shopify Store Development & Growth — Built to Convert
A Shopify store that loads in 4 seconds loses 24% of its visitors before they see a single product. A store with a 1.2% conversion rate generates half the revenue of one at 2.4% — same traffic, same ad spend, double the sales. And a store built on a bloated theme with 30 unused apps is fighting its own infrastructure every time Google tries to rank it. GigaCommerce builds and optimizes Shopify stores that do three things: load fast, convert visitors into buyers, and rank on Google. We handle everything from custom design and development to ongoing speed optimization, CRO, and growth marketing — with a dedicated team that knows your store inside out.
Custom Shopify Store Design & Development
Every store we build starts with your business goals — not a template. We design around your customer’s buying journey: what objections they have, what information they need, and what path gets them from landing page to checkout with the least friction.
Information Architecture
Before we touch a pixel, we map your product catalog, category structure, and navigation hierarchy. A store selling 50 SKUs across 3 categories needs a fundamentally different structure than one selling 2,000 SKUs across 40 categories. Most agencies skip this step and wonder why bounce rates are high.
Conversion-Centered Design
Every page element has a job. The hero section communicates your core value proposition in under 3 seconds. Product cards show the information buyers need to click (price, rating, key differentiator — not just a photo and a name). Collection pages filter and sort in ways that match how YOUR customers shop, not how a generic template assumes they shop.
Mobile-First Build
Over 70% of Shopify traffic comes from mobile devices. We design for mobile first, then adapt for desktop — not the reverse. This means: thumb-friendly navigation, streamlined mobile checkout, properly sized images that don’t bloat load times, and sticky add-to-cart bars that follow the shopper down the page.
Theme Selection vs. Custom Build
Not every brand needs a fully custom theme. For brands under $50K/month in revenue, we often recommend starting with a high-performance theme (Dawn, Prestige, or Impulse) and customizing it to match your brand. For brands above $100K/month with complex catalog or UX requirements, a fully custom theme built on Shopify 2.0’s section architecture provides the flexibility needed for ongoing optimization.
App Integration
We integrate the tools your store needs — and only the tools it needs. Every app adds JavaScript, HTTP requests, and rendering overhead. We audit app necessity ruthlessly: Klaviyo for email, Recharge for subscriptions, Loox or Judge.me for reviews, and a handful of operational tools. The average Shopify store has 20+ apps installed. Our stores launch with 6-8 — and perform dramatically better for it.
Checkout Optimization
Shopify’s native checkout is already high-performing, but there’s still room to improve. We implement: trust badges at checkout, dynamic shipping calculators, express payment options (Shop Pay, Apple Pay, Google Pay), post-purchase upsell flows, and abandoned cart recovery sequences.
Speed Optimization
Page speed is a ranking factor for Google, a conversion factor for buyers, and a structural issue that compounds over time as stores add products, apps, and content.
Audit
We run a comprehensive speed audit using Lighthouse, WebPageTest, and real-device testing. We measure Core Web Vitals (LCP, FID, CLS) and identify every bottleneck — from unoptimized images to render-blocking JavaScript to excessive app overhead.
Image Optimization
The single largest speed improvement for most Shopify stores. We implement next-gen formats (WebP/AVIF), lazy loading for below-the-fold images, proper responsive sizing (no 3000px images in a 400px container), and automated compression pipelines for ongoing uploads.
Theme Code Optimization
We minify CSS and JavaScript, eliminate render-blocking resources, defer non-critical scripts, reduce DOM size, and implement efficient loading strategies for fonts and third-party scripts. For stores on custom themes, we audit Liquid template efficiency and reduce redundant API calls.
App Audit & Cleanup
Every installed Shopify app adds external JavaScript to your storefront — whether you’re actively using it or not. We audit all apps, remove unused ones, evaluate alternatives for heavy ones (replacing a 200KB review app with a 30KB alternative, for example), and defer loading for non-critical app scripts.
CDN & Server Optimization
Shopify’s CDN is already fast, but we ensure assets are served with proper cache headers, Brotli compression is active, and no redirect chains are wasting round trips.
Our target
Sub-2-second Largest Contentful Paint on mobile. Most stores come to us at 3.5-6 seconds. We consistently get them under 2 seconds.
Note: Speed optimization is available as a one-time project ($1,500-$3,000) or included in our ongoing retainer plans.
Conversion Rate Optimization (CRO)
The average Shopify store converts at 1.3-1.5%. Top-performing stores convert at 2.5-4%. That difference — on the same traffic — is the difference between breaking even and being profitable. We run a continuous CRO program that identifies and eliminates conversion barriers:
Heatmap & Session Recording Analysis
Using tools like Microsoft Clarity, we watch how real users interact with your store. Where do they click? Where do they hesitate? Where do they leave? This data tells us more than any best-practice article ever could.
A/B Testing
We test specific hypotheses, not random changes. Example: “Adding a size guide link directly below the size selector will reduce size-related return rates and increase add-to-cart rate.” We set a test, run it until statistical significance, and implement the winner. Typical testing cadence: 2-3 tests per month.
Checkout Flow Analysis
We track the funnel from product page → add to cart → initiate checkout → complete purchase. Drop-offs at each stage indicate specific problems: cart abandonment is usually a shipping cost surprise or trust issue. Checkout abandonment is usually a payment method limitation or form friction issue. We fix each systematically.
Product Page Optimization
The product page is where the buying decision happens. We optimize: image galleries (sequence and content), product descriptions (benefit-led, not feature-led), social proof placement (reviews, UGC, trust badges), urgency elements (inventory indicators, shipping cut-off times), and cross-sell/upsell recommendations.
Collection Page Optimization
How products are displayed, filtered, and sorted on collection pages directly impacts browse-to-product click rates. We optimize default sort order, filter facets, grid vs. list views, and above-the-fold product density.
Platform Migration
If you’re currently on WooCommerce, Magento, BigCommerce, or a custom platform and need to move to Shopify, we manage the complete migration process:
Data Migration
Products, customers, order history, reviews, and SEO data (URL redirects, meta tags, structured data) are all transferred with zero data loss. We maintain complete 301 redirect mapping from old URLs to new URLs so you don’t lose organic search rankings.
Design Rebuild
We don’t just copy your old design onto Shopify. We use the migration as an opportunity to improve: better information architecture, faster performance, higher-converting layouts. You get a better store, not just a ported one.
SEO Preservation
This is where most migrations fail. A URL structure change without proper redirects can destroy years of organic rankings overnight. We map every indexed URL to its Shopify equivalent, implement 301 redirects, update internal links, submit a new sitemap, and monitor GSC for crawl errors through the transition period.
Third-Party Integration
Payment gateways, ERPs, inventory management systems, email platforms — all need to be reconnected to the new Shopify store. We handle the integration layer so there’s no operational disruption on launch day.
Timeline
Typical migrations take 4-8 weeks depending on catalog size, customization complexity, and integration requirements.
Ongoing Growth & Maintenance
A Shopify store is not a “set it and forget it” asset. The best-performing stores are continuously improved: new features, faster load times, better conversion rates, updated content, and seasonal campaigns.
Our ongoing retainer includes:
- Continuous speed monitoring and optimization
- Monthly CRO testing (2-3 A/B tests)
- Theme updates and security patches
- App management and performance monitoring
- New feature development (landing pages, seasonal campaigns, product launch pages)
- Quarterly UX audit with actionable recommendations
- Analytics reporting and insights
How We Work
Free Store Audit
We analyze your current Shopify store (or your existing platform if you’re migrating) and deliver a detailed report covering: page speed scores, conversion rate benchmarks, UX issues, SEO health, and specific recommendations. This takes 24-48 hours and is completely free.
Scope & Strategy
Based on the audit, we define the project scope: new build, redesign, speed optimization, migration, or ongoing growth retainer. You get a detailed proposal with timeline, deliverables, and pricing before any work begins.
Build & Launch
For new builds and redesigns, our process is: wireframes → design mockups → development → content integration → QA testing → staging review → launch. You review and approve at every stage. Typical timeline: 4-8 weeks for new builds, 2-4 weeks for redesigns.
Grow
After launch, we shift into growth mode: ongoing CRO testing, speed optimization, content updates, and analytics-driven improvements. Your store gets better every month.
Pricing
Starter Store
New brands launching their first Shopify store.
$5,000-$8,000
What’s included in:
Theme-based build (Dawn, Prestige, or equivalent)
Brand customization
Up to 50 products configured
Essential app integrations
Mobile optimization
Basic SEO setup
2 weeks of post-launch support
Timeline: 3-4 weeks
Growth Store
Established brands redesigning or migrating to Shopify.
$5,000/ month
What’s included in:
Semi-custom theme build
Advanced product page templates
Collection page optimization
Full SEO migration
Klaviyo email integration
Checkout optimization
4 weeks of post-launch support
Timeline: 4-6 weeks.
Custom Store
High-revenue brands with complex catalog or UX requirements.
$5,000/ month
What’s included in:
Fully custom Shopify 2.0 theme
Bespoke design
Advanced filtering and navigation
Custom Liquid development
Third-party system integrations
Performance engineering
8 weeks of post-launch support
Timeline: 6-10 weeks.
Essentials
$2,000/ month
What’s included in:
Speed monitoring
Monthly CRO test
App management
Minor updates
Bi-weekly reporting
Growth
$4,000/ month
What’s included in:
Everything in Essentials
2-3 CRO tests/month
New landing page creation
Email flow optimization
Quarterly UX audit
Weekly reporting and strategy calls
Scale
$8,000/ month
What’s included in:
Everything in Growth plus
Dedicated developer time
Advanced feature development
A/B testing program
Multi-channel integration support
Daily communication
Speed Sprint
$1,500-$3,000
What’s included in:
Comprehensive speed audit and optimization
Typical result: 40-60% improvement in LCP score
Delivered in 1-2 weeks.
Frequently Asked Questions
A professionally built Shopify store ranges from $5,000 for a theme-based build to $30,000+ for a fully custom development. The cost depends on catalog complexity, design requirements, custom functionality, and integration needs. Most of our clients invest $8,000-$15,000 for a store that’s genuinely optimized for conversion and speed — not just aesthetically pleasing.
Theme-based builds take 3-4 weeks. Semi-custom builds take 4-6 weeks. Fully custom builds take 6-10 weeks. Migration projects add 1-2 weeks for data transfer and redirect implementation. These timelines assume timely client feedback and content delivery.
If you’re spending more time managing your platform than growing your business, yes. WooCommerce requires ongoing hosting management, security patching, plugin updates, and performance tuning that Shopify handles natively. Magento is powerful but expensive to maintain and over-engineered for most brands under $10M in revenue. Shopify provides the best balance of ease, performance, and scalability for DTC brands.
Not if the migration is handled properly. The most critical element is a complete 301 redirect map from every old URL to its corresponding new Shopify URL. We map every indexed page, implement redirects before launch, submit an updated sitemap, and monitor Google Search Console for crawl errors during the transition. Most clients see a brief (1-3 week) ranking fluctuation followed by recovery or improvement.
Three factors: optimized images (proper format, sizing, and lazy loading), clean theme code (minimal JavaScript, no render-blocking resources), and disciplined app usage (every app adds weight). Most slow Shopify stores are slow because of accumulated app bloat and unoptimized images — not Shopify’s infrastructure, which is inherently fast.
Yes. Shopify Plus is ideal for high-volume brands that need advanced checkout customization, wholesale channels, multi-store management, and automation features. We build on Plus when the business justifies it — typically brands doing $1M+ annually.
Absolutely. Our speed optimization sprint ($1,500-$3,000) and ongoing growth retainers ($2,000-$8,000/month) are designed specifically for this. Many clients come to us with an existing store that looks fine but loads slowly or converts poorly. We diagnose and fix the underlying issues without a full rebuild.
It depends on your business, but our most commonly recommended stack: Klaviyo (email/SMS), Judge.me or Loox (reviews), Recharge (subscriptions), PageFly or GemPages (landing pages — sparingly), Google & YouTube channel (feed management), and Shopify’s native analytics. We recommend against installing more than 8-10 apps total. Every additional app is a performance cost.
Ready to build a store that actually converts?
Get your free Shopify store audit. We’ll analyze your current site and show you exactly what’s slowing it down and what’s costing you sales.