Loading, please wait...
10
Day Or Faster Checkout Block Turnaround
01The Problem
Most checkout requests are small: a delivery note, a terms checkbox, a disclaimer. Shopify Plus checkout rebuilds solve this, but they cost more and take longer than a small change needs.
The problem
You need one thing at checkout: a gift message field, a terms checkbox, a shipping disclaimer, a note about delivery windows. Shopify's default checkout does not have it, and a full checkout rebuild feels like overkill for one field. Meanwhile an app you installed for something else is quietly adding a block that clashes with your theme, or a checkbox that was never tested on mobile.
How we solve it
We build the exact checkout UI extensions you need, nothing more. A field, a checkbox, a disclaimer, or a content block, placed on the right checkout step and tested on real orders and real phones. Because it is a native Shopify extension, it keeps working through Shopify updates and does not slow your checkout down.
Built for the exact request
One field or several, we build only what your checkout is missing.
Native checkout extensions
No injected scripts, just Shopify's own supported extension points.
Fast on real phones
Every extension is tested on mid-range mobile devices before launch.
02Our Checkout Customization Process
You see exactly what changes and what it costs before a single customer sees it. Every step ends with something you can review.
03What's Included
Every project covers review, design, build, testing, and a handover your team can manage.
Checkout review
A look at your current checkout, apps, and exactly what needs to change.
Checkout UI extensions
Custom fields, checkboxes, disclaimers, and content blocks built and placed.
Checkout branding cleanup
Fonts, colors, and layout tidied through the branding editor where needed.
App conflict review
We check for checkout apps clashing with your new extensions.
Testing on real orders
Every field and checkbox confirmed on live test orders and mobile.
Documentation & handover
Plain instructions so your team can manage checkout content going forward.
04Compare Options
Apps are quick and generalists are flexible. Both work for simple needs. Here is where each one runs out and where dedicated checkout work pays off.
| Feature | DeveloperLookBEST FIT | Checkout Apps | Generalist Developer |
|---|---|---|---|
| Scoped before building | Written review and fixed price | None, install and configure | Depends on the person |
| Custom fields and checkboxes | Built as native extensions | Limited to the app's own settings | Often unfamiliar with extensions |
| App conflicts | Resolved in one build | Common across multiple apps | Case by case |
| Checkout speed | No added script weight | Slows with each app added | Varies by developer |
| Survives Shopify updates | Built on supported APIs | Depends on app vendor | Risky with legacy code |
| QA on real orders | Every field, every device | Not included | Often limited |
| Monthly cost | One project, no app fees | Ongoing fee per app | Hourly, if available |
05Projects We've Built
A selection of Shopify and ecommerce builds shipped for clients. Each one started with a business problem, not a theme.
06What Our Clients Say
Feedback from ecommerce teams we have built stores, checkouts, and integrations for.
keep scrolling
We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.
Michael Bennett
Founder & CEO of Northbridge Consulting
The mobile experience is probably my favourite part of the new site. We had spent a lot of time making sure the desktop version looked right, and the team kept pushing us to think about how everything would actually feel on a phone too. They were right. The navigation is clean, the interactions feel natural, and everything we’ve tested so far works exactly as it should. They also went through the links, forms, integrations, and other details more than once before launch, which I really appreciated. And even after going live, we could still reach out when something came up. The whole process felt friendly, organised, and surprisingly straightforward.
James Whitmore
Head of Marketing of Lumen Outdoor
What I appreciate most is that the website is actually easy for us to manage now. We can update content ourselves instead of sending a developer a message every time we need to change something small. They also paid attention to the technical SEO side, which mattered to us because we didn’t want a new website to create problems for the traffic we already had. I’ve probably asked more questions than I should have since launch, but every question has been handled patiently and without any fuss. The team is easy to work with, they explain things clearly, and when we need something changed, they focus on getting it done rather than making the process complicated.
Sarah Mitchell
Operations Manager of Harborline Commerce
150+
Projects shipped
10+
Years in development
Top 3%
Upwork Top Rated Plus
5★
Average review score
07Work Culture
Small checkout changes still touch the page that collects your revenue. These are the habits we bring to every one.
You get a fixed price and a list of exact changes before any code is written.
We add only the fields and blocks you asked for, so checkout stays fast.
Built with Shopify's supported checkout extension points, not fragile injected scripts.
Every field and checkbox is checked on a live test order before you see it.
You get plain instructions for managing your new checkout content.
Work that is easy to extend later if you add Shopify Plus or more checkout logic.
08Overview
DeveloperLook builds Shopify checkout UI extensions and blocks: custom fields, checkboxes, disclaimers, delivery notes, and post-purchase content, added to your existing checkout. Fixed-scope projects start from $499, most go live in 3 to 10 business days, and you keep full ownership of the code.
Who it's for
Stores that need one or two checkout changes
You need a checkbox, a delivery note field, or a disclaimer added, not a full checkout rebuild.
Merchants adding subscription or gift options
Your subscription or gifting app needs a field or message shown at checkout, and the app's own docs stop short of custom placement.
Brands cleaning up a messy checkout
Old checkout.liquid edits or conflicting app blocks are showing broken layouts or duplicate fields.
Stores adding trust or compliance content
You need a terms checkbox, an age or shipping disclaimer, or region-specific notices at checkout.
Teams testing before a bigger project
You want to see what checkout extensions can do before committing to a full Shopify Plus rebuild.
Not a fit for
You are on Shopify Plus and need custom payment, shipping, or discount logic built with Shopify Functions. Our Shopify Plus Checkout Customization service covers that.
You want to replace Shopify's checkout with an entirely custom, off-platform page.
You only need a color or logo change. The free checkout branding editor already does that.
You need card data processed on your own servers instead of Shopify's hosted checkout.
09Pricing
These are starting points in USD. Your final price depends on how many extensions and fields you need, and you get a fixed proposal after a free checkout review.
10For Agencies
You own the client and the store design. We supply the Shopify checkout extension work. Send us the brief and we build, test, and hand over the extensions under your brand, on your deadline.
Stay client-facing
We work under your brand, so you keep the relationship and the credit.
Predictable delivery
Clear scope and a delivery date, with QA before anything reaches your client.
Checkout specialists
Extensions built and tested without hand-holding.
Flexible capacity
Bring us in for one checkout fix or a queue of client requests.
01
Share the brief
Send the store access, the fields or blocks needed, and the client deadline.
02
We propose and staff
You get an estimate and a delivery date before you commit.
03
Build and hand off
We develop, test, and deliver the extensions and documentation under your brand.
11The Right Technology for Your Project
We build with Shopify's supported checkout stack, then match whatever your store already runs on.
Checkout UI Extensions
Checkout Blocks
Checkout Branding API
Shopify Flow
Pick a 30-minute slot that works for you. We meet on Google Meet to align on goals, scope, and the right next step.
12FAQ
Straight answers on Shopify checkout customization, cost, timelines, and what happens after launch.
You add checkout UI extensions to the information, shipping, and payment steps, for fields, checkboxes, banners, and upsell content, plus branding through Shopify's checkout editor for fonts, colors, and layout. We handle both, and match each change to the checkout step it belongs on.
Yes. On any eligible plan you can add checkout UI extensions for custom fields, checkboxes, and content blocks, and change branding through the checkout editor. Deeper logic such as custom payment or shipping rules needs Shopify Plus and Shopify Functions, which is a separate service we also offer.
Most subscription apps add their own checkout UI extension to show delivery frequency, a subscribe and save discount, or a gift message field. We can build or adjust that extension when the app's default placement or wording does not fit your store.
We add a checkout UI extension with a text field or banner on the step you choose, then connect it to save that note to the order so your team sees it in Shopify admin and on packing slips.
We build a checkout UI extension with a checkbox for terms acceptance, gift wrapping, a marketing opt-in, or any condition your store needs, and set whether it is required before the customer can pay.
We add a text block extension showing your disclaimer, such as shipping delays, age restrictions, or region-specific notices, on the checkout step where it is most likely to be read before purchase.
Shipping rates at checkout come from your shipping settings and any shipping apps you run, not from a separate checkout extension. We review your rate setup and app conflicts and fix what is showing an incorrect or unwanted calculation.
Shopify's one page checkout shows contact, shipping, and payment on a single page. Checkout UI extensions can still add fields, checkboxes, and content anywhere on that page, so a one page layout does not limit what we can add.
Fewer confusing steps and clearer information at checkout reduce hesitation at the moment customers are about to pay. Small changes such as a delivery date field, a trust badge, or a clear return policy note tend to reduce abandoned carts more than a full redesign.
Projects start at $499 for one or two extensions, and scale from there based on how many fields, checkboxes, or content blocks you need and how much testing is involved. You get a fixed price after a free checkout review.
