Basic Package
1 Checkout UI extension
$379USD / one-time
4-day delivery2 revisions
- 1 Checkout UI extension (e.g. trust badges or upsell block)
Omeiro Website Design
Checkout Extensibility Services
Packages & Pricing.
Fixed-price Shopify checkout customization with clear deliverables. Modern Checkout UI extensions, bespoke post-purchase upsells, custom shipping rules, and custom checkout validation replacing legacy checkout.liquid. From $379.
Clear Delivery Times
Revisions Included
Packages
Choose your Shopify Checkout Extensibility & Customization package
Modern Checkout UI extensions, bespoke post-purchase upsells, custom shipping rules, and custom checkout validation replacing legacy checkout.liquid.
Standard Package
3 UI extensions
$859USD / one-time
8-day delivery3 revisions
- 3 UI extensions
- post-purchase upsell page
Premium Package
Full checkout customization, shipping/validation
$1,699USD / one-time
14-day delivery5 revisions
- Full checkout customization, shipping/validation Functions, checkout.liquid migration
Shopify checkout customization with UI extensions and Functions
Shopify checkout customization now means Checkout UI extensions, Functions and post-purchase pages instead of the old checkout.liquid file. Omeiro builds trust badges, upsell blocks, shipping rules and validation that fit the modern checkout and keep working through Shopify updates.
If you still rely on checkout.liquid, moving is a deadline, not an option. You describe what your checkout needs, and we build it with checkout extensibility.
Planning checkout extensibility changes safely
Checkout extensibility changes touch the most valuable page on your store, so planning matters. List every customisation your checkout has today, including scripts, apps and tracking, then decide which are still needed. Some old tweaks have official replacements, others are better dropped, and a few need a different approach such as a Function instead of front-end code.
Test with real scenarios, not only a simple order. Try discount codes, gift cards, multiple shipping rates, international addresses and mobile devices, because a rule that works on one path can fail on another. Share your plan type, current apps and examples of the behaviour you want. A careful checkout extensibility project also records what each extension does, so future changes are easy to review.
Who needs checkout changes
- Stores still running customizations in checkout.liquid.
- Merchants hiring a checkout extensibility developer for upsells and badges.
- Brands asking for Shopify checkout UI extensions that match their design.
- Shops that need Shopify Plus checkout customization with custom rules.
Package contents
- Basic: 1 Checkout UI extension, such as trust badges or an upsell block.
- Standard: 3 UI extensions.
- Standard adds a post-purchase upsell page.
- Premium: full checkout customization.
- Premium includes shipping and validation Functions and a checkout.liquid migration.
How checkout is customized
1
Audit checkout
We list your current customizations and what Shopify still lets you change.
2
Build extensions
UI blocks, Functions and the post-purchase page are coded to your spec.
3
Test orders
Test checkouts verify the behavior across devices and discount types.
4
Go live
Extensions are published, and you receive a note of what each one does.
Why Omeiro for checkout work
Visible costs
Packages cost $379, $859 or $1,699, one-time.
Clear scope
Delivery takes 4, 8 or 14 days depending on how many extensions you need.
Store services together
Shopify Plus builds and custom apps are offered in the same Website Design division.
FAQ
Shopify Checkout Customization: common questions
Shopify Checkout Customization pricing: how much does it cost?
Fixed packages: Basic $379, Standard $859, Premium $1,699. You see the full price before you order, and you can also ask for a custom quote.
How long does checkout extensibility developer take?
Delivery depends on the package: Basic 4-day delivery; Standard 8-day delivery; Premium 14-day delivery.
What is included in the Basic Package?
The Basic Package includes: 1 Checkout UI extension (e.g. trust badges or upsell block). Higher packages add more scope, revisions and support.
Can I get a custom Shopify checkout UI extensions package?
Yes. If none of the packages fits, use the custom package form on this page to describe what you need, and our team sends you a fixed price.
Do I need Shopify Plus?
Some checkout features are Plus-only, so we confirm your plan before building.
Can you migrate my checkout.liquid changes?
Premium includes a checkout.liquid migration.
Will extensions slow checkout?
Extensions are kept light and tested on mobile.
Can I add upsells after purchase?
Standard includes a post-purchase upsell page.
What is a Shopify Function?
A Function is a small piece of backend logic that customises things like discounts, shipping options or validation inside Shopify. It runs on Shopify's infrastructure, so it does not slow your storefront.
How do I test checkout changes without losing orders?
Use a development store or a test mode first, run different order scenarios, and publish during a quiet period. Keep a note of the previous setup so you can roll back quickly.
Custom Package
Didn't find what you're looking for?
Need a different number of concepts, a full brand kit, a faster deadline or something else? Tell us what you need and we'll put together a custom package for you, usually within 24 hours.
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