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Simbyte TechnologiesSimbyte.
E-Commerce & Retail

Rebuilding Northfield Retail's storefront for mobile conversion

A slow, template-based Shopify store was losing mobile shoppers at checkout. We rebuilt it on a performance-tuned custom theme and lifted mobile conversion within weeks.

+38%
Mobile conversion rate
1.2s
Largest Contentful Paint
+21%
Average order value

The challenge

Northfield Retail's Shopify store was running on a heavily customized marketplace theme with over a dozen apps stacked on top of it. Page load times on mobile regularly exceeded four seconds, and checkout abandonment on mobile was nearly double the desktop rate. The internal team could no longer safely make changes without breaking something else in the theme.

What we built

We rebuilt the storefront on a lean, custom Shopify theme — removing unused app scripts, restructuring the product and collection templates for speed, and redesigning the mobile checkout flow around fewer taps and clearer shipping/tax visibility. Product recommendations were rebuilt using Shopify's native APIs instead of a third-party app to cut third-party script weight.

The results

Within the first month post-launch, mobile conversion rate increased 38% and average order value rose 21% following the addition of a redesigned upsell flow at checkout. Largest Contentful Paint on mobile dropped from 4.1s to 1.2s. The Northfield team has since been able to make routine content updates themselves without engineering support.

“Simbyte rebuilt our checkout flow and our mobile conversion rate went up within the first month. They communicated clearly at every stage and never missed a milestone.”

Sarah Mitchell — Head of E-Commerce, Northfield Retail Co.
E-Commerce DevelopmentSEO & Digital Marketing

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