Masienda
Shopify 1.0 to Horizon retheme · 2025
A full move from an ageing Shopify 1.0 theme to Horizon — every custom feature rebuilt, nothing lost, and a noticeably faster store. Conversion rate rose around 28% afterwards.
The problem
Masienda's store ran on a Shopify 1.0 theme carrying years of custom work. It felt slow and laggy, and because everything was hard-coded, the team couldn't use any of Shopify's newer features without a rebuild. Moving to Horizon meant rebuilding every custom feature — not just copying files across.
What I built
I rethemed the whole store onto Horizon and rebuilt each custom feature in Shopify's modern, section-based setup: a sticky add to cart, a quick add made for this catalogue, product-page and cart upsells, and a custom Rebuy cart. I also built a search into the header that finds both products and blog recipes, with its settings in the theme customizer. Anything that used to be one-off code is now a section or setting the team can change themselves.
How it feels to shop
Pages load quickly and clicks respond straight away — no more lag. The buy button stays in reach, quick add works from the product grid, and upsells appear naturally on the product page and in the cart. One search box covers products and recipes, so shoppers find what they came for faster.
Result
Conversion rate rose around 28% after the retheme, with total revenue up alongside it — and the team now edits the store themselves instead of filing developer requests.
Stack: Shopify, Horizon, Liquid, JavaScript, Rebuy, Online Store 2.0 sections, Theme customizer settings