You're probably here because of one of these.
Most Shopify work arrives as a symptom rather than a spec. Any of these sound familiar, we've fixed it before.
Your store is close to the design but never quite right, and every new section turns into a week of dev tickets.
The feature you need doesn't exist in any app — or it does, bundled at $400 a month for the one thing you actually use.
The last developer shipped late, left a mess, and now nobody wants to touch the theme.
Apps update, themes drift, and something quietly breaks on a Saturday — with no one on call to notice.
What Shopify work looks like here.
Four ways in. Most brands start with one and end up on the maintenance retainer.
Custom Theme Development
A theme built to your design, from scratch or on a solid base — clean Liquid, sensible section schemas, and an admin your team can actually merchandise from without a developer.
Sections, Snippets & Templates
New sections, blocks and page templates for a theme you already run — reusable, documented, and built so the next one doesn't need us either.
Shopify Apps, Functions & Scripts
Private apps, Shopify Functions and checkout logic for the behaviour no app-store app covers — discounts, bundles, validation, fulfilment rules and admin tooling.
Store & App Maintenance
Ongoing fixes, third-party app upkeep, theme and platform upgrades, and performance work — so small problems stay small.
Shopify work is scoped per project — the range depends on how much design is settled, how many templates you need, and whether we're building on a clean base or untangling someone else's theme. You get a fixed number before anything starts.
Two stores, built and still running.
The challenge
Both needed a storefront that the client's own team could merchandise without opening a support ticket for every change.
What we did
- geurwolkje.nl — aromatherapy brand, custom theme and ongoing maintenance
- nielsenlight.dk — built from scratch, Danish lighting retailer
- Sections and templates the in-house team extends without us
Ownership and clarity, from people who'd know.
“The Lead Developer was one of the best frontend developers I have ever worked with. Easy to trust. Strong ownership. Delivered what they committed to.”

“Extremely professional in communication and ownership of tasks. Quick to take direction and run with it to efficiently produce high-quality work.”

“Very pleased to have worked with Sleek App. The team was able to quickly grasp the requirements of our complex project and deliver the initial deliverables in good time.”

Scope. Build. Ship. Maintain.
The same process whichever lane you came in through. You always know what’s done, what’s next, and what’s blocked.
Scope & quote
We map what you need, what it will cost and what could go wrong — before anyone signs anything.
Build & ship
Senior engineering, weekly check-ins, clean delivery. Quality you don't need to review line by line.
QA & launch
We finish strong — testing, hardening and launch support, not “good luck from here.”
Maintain & extend
Ongoing maintenance, monitoring and new features on a retainer — if you want us to stick around.
Tell us what you’re building — or fixing.
Send the details and you’ll get back a clear recommendation, a realistic timeline, and a straight answer on whether we’re a fit.