Scope Summary
The Effort

Project Management
FREE

Developer
40 hrs
Total
40 hrs
Service Model
On Call
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We offer three flexible service models: On Call, Project, Monthly. See our pricing page for details.
Engagement Range
$3K – $4K
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This range is provided only as a reference to help estimate similar engagements. Actual costs vary based on project scope, complexity, custom functionality, and client direction.

Theme: Cornerstone
Team Members
Tech Stack
The Challenge
The store was still running on an outdated Cornerstone theme (v1.17.0), which limited functionality, caused layout inconsistencies, and created conflicts with custom scripts and apps. It was not always clear what came from the base theme and what had been customized, so any change carried a real risk of breaking live pages, especially since AOC had never worked on the store before.
Sky’s the Limit needed a safe, methodical upgrade to Cornerstone v6.12.0 that preserved their existing experience while fixing fragile areas of the build. The goal was to stabilize the site, clean up layout issues, and create a solid foundation for future enhancements without disrupting customers or losing key functionality.

Project Goals
Assess the existing Cornerstone v1.17.0 theme and identify all customizations, widgets, scripts, and dynamic elements
Decide which customizations should be rebuilt versus migrated into Cornerstone v6.12.0
Migrate headers, footers, custom HTML, CSS, and scripts into the new theme while preserving original behavior
Fix page specific issues, including broken scripts, layout problems, and app conflicts
Stabilize responsiveness across devices and key templates (home, category, product, content)
Prepare a clean, maintainable foundation for future updates, CRO work, and ongoing maintenance
Our Approach
We started with a discovery and audit phase, cataloging the existing theme version, custom code, widgets, scripts, and dynamic sections so nothing critical would be lost during the upgrade. From there, we migrated the store to Cornerstone v6.12.0, carefully porting the header, footer, custom HTML, CSS, and scripts, then previewed and adjusted the new theme until the front end matched the prior experience. Once live, we worked through page specific fixes, stabilizing layouts on the homepage, product and category templates, brands and about pages, and troubleshooting broken scripts and apps. Final adjustments focused on responsiveness and reliability so the site could support future enhancements without the fragility of the old build.


Outcome
Sky’s the Limit Car Care now operates on a modern Cornerstone build that better matches the quality of the products and service they provide. The upgraded theme removed technical debt from the old version, reduced layout and script issues, and positioned the site for future optimization, promotion, and design improvements. Customers get a smoother, more reliable shopping experience, and the brand has a stable BigCommerce foundation they can confidently build on.
Growth Highlights
Modernized storefront on Cornerstone v6.12.0
More stable layouts across key pages and devices
Custom scripts and apps preserved without major rewrite
Cleaner code base ready for future CRO and design work



Excellent job updating our cart template and scripts! Very responsive and quality work.
- Corey C. MGMR, Sky's the Limit






