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Shopify theme experts · <24h response

Shopify Theme Customizations That Actually Increase Revenue

Need a new section, custom functionality, better UX, or conversion-focused improvements? Our Shopify experts build theme customizations that make your store faster, easier to use, and more profitable.
Free, no-obligation estimate
First reply within 24 hours
Unlimited revisions · money-back first sprint
★★★★★
4.9 / 5 · trusted by 60+ D2C brands
Get a Free Estimate
24h reply
Tell us what you need — no commitment, just a clear plan and price.
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A real Shopify engineer reads every request. No spam, ever.
The Impact

Small changes.
‍Massive impact.

32%
Conversion Rate Increase
24%
Avg Order Value Growth
41%
Add-to-Cart Improvement
48%
Faster Load Times
The Problem

Your theme shouldn't limit your growth.

Most stores leave revenue on the table because the theme can't keep
up. Sound familiar?

Theme limitations

The layout you want isn't possible without touching code — so it never ships.
~18h avg

Poor mobile experience

Liquid, Hydrogen, checkout extensibility, Shopify Plus. We've shipped it all, in production.

Slow performance

Bloated code and heavy apps drag load times
— and tank your conversion.
~18h avg

Low conversion rates

Friction in the funnel quietly costs you orders every single day.
~18h avg

Design restrictions

Your brand feels boxed in by a template everyone else is using too.

App dependency issues

Stacked apps conflict, slow the store, and rack
up monthly fees.
What We Customize

Popular Shopify Theme Customizations.

From conversion-focused product pages to advanced Shopify functionality, these are the most common customizations we build for growing brands.

Product Page (PDP)

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →

Homepage & Layout

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →

Collection Pages (PLP)

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →

Mobile Experience

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →

Speed & Performance

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →

Custom Sections & Features

+

The most important page in your store. Small improvements here can have a major impact on conversion rates.

Product Comparison Features
Product Tabs
Trust Badges
Size Guides
Delivery Information
Upsell Sections
Cross-Sell Blocks
Product Comparison Features
Need something not listed here? We can build custom Shopify functionality tailored to your business.
Get Free Estimate →
Feature Showcase

Customizations that move the needle.

A few of the high-impact features we build into Shopify themes.

Product Page Enhancements

Sticky add-to-cart, variant swatches, dynamic bundles, trust badges, and size guides
— engineered to lift conversion.

Bundle Builders

Mix-and-match bundles that raise AOV.

Subscriptions

Mega Menus

Cart Upsells

In-cart offers and free-shipping nudges.

Product Comparison

Side-by-side comparison to speed decisions.
Why Mudcy

Built like a product team.

Shopify Specialists

Liquid, Hydrogen, Plus, checkout extensibility —
shipped in production.
~18h avg

Fast Trunaround

Most tasks ship within a day. Submit before
noon, review by tomorrow.

CRO Focused

Every change ties back to conversion, AOV, or
speed — never just aesthetics.
~18h avg

Clean Develemopment

Maintainable, upgrade-friendly Liquid. No
spaghetti, no app bloat.
~18h avg

Unlimited Revisions

We iterate until it's right — no revision counts,
no friction.

Ongoing Support

Move from project to retainer and keep a
dedicated dev on call.
Our Process

From brief to launch.

01
GATHER

Requirement Gathering

We learn your goals, store, and the change you need.
02
PLAN

Estimate & Planning

A clear scope, timeline, and fixed estimate — no surprises.
03
Build

Development

We build on a staging
theme with clean, fast
Liquid.
04
TEST

Testing

Cross-device, cross-
browser QA before
anything goes live.
05
LAUNCH

Launch

We deploy to live with a backup — zero downtime.
06
OPTIMIZE

Optimization

We measure, test, and
refine to compound the results.
Case Studies

The numbers do the talking.

FRAGRANCE · Street Origins

A PDP rebuilt for conversion

Challenge
A cluttered product page with no sticky add-to-cart and slow variant switching
was leaking mobile sales.
Solution
We rebuilt the PDP with instant variant swatches, a sticky add-to-cart, bundles,
and trust badges — speed-safe.
↑ 31%
Conversion
↑ 42%
Revenue
↓ 58%
Load Time
APPAREL · Maison Eight

A cart that lifts AOV

Challenge
A cluttered product page with no sticky add-to-cart and slow variant switching
was leaking mobile sales.
Solution
We rebuilt the PDP with instant variant swatches, a sticky add-to-cart, bundles,
and trust badges — speed-safe.
↑ 38%
AOV
↑ 22%
Conversion
↑ 2.4x
Upsell Rate
Testimonials

Founders who bet on Mudcy.

Mudcy shipped in a week what our last agency quoted a full quarter for. Genuinely the fastest team we've worked with.
e
Elena R.
Founder, Velour
Our PDP conversion jumped 31% after theirCRO sprint. The work paid for itself in 12 days.
M
Marcus T.
CMO, OBSIDIAN
They rebuilt us headless and our store finally feels premium. Load time halved.
p
Priya N.
CEO, Lumen Co. · Watch story
Mudcy shipped in a week what our last agency quoted a full quarter for. Genuinely the fastest team we've worked with.
e
Elena R.
Founder, Velour
Our PDP conversion jumped 31% after theirCRO sprint. The work paid for itself in 12 days.
M
Marcus T.
CMO, OBSIDIAN
No retainers, no fluff. We turn hours up before a drop and down after. Perfect for our model.
d
Dane K.
Ops Lead, STÅRK
The bundle system they built lifted AOV 38%. Single best ROI decision this year.
s
Sofia A.
Founder, Maison Eight
It feels like having a senior Shopify team on retainer at a fraction of the cost.
i
Idris M.
Founder, GRVTY
No retainers, no fluff. We turn hours up before a drop and down after. Perfect for our model.
d
Dane K.
Ops Lead, STÅRK
The bundle system they built lifted AOV 38%. Single best ROI decision this year.
s
Sofia A.
Founder, Maison Eight
FAQ

Good questions, answered.

Will you work on my live store directly?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

Which themes do you work with?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

How fast can you start, and how long does it take?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

What counts as a revision?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

Will customizations slow my store down?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

Do you offer ongoing support?

+

No — we always build on a duplicate (staging) theme so your live store is never at risk. You review a previewlink, and we only publish once you approve, with a backup in place.

Get Started

Let's build the Shopify store your brand deserves.

From simple tweaks to advanced functionality, Mudcy helps ambitious brands unlock more revenue through smarter Shopify experiences.

Get My Free Estimate →
Shopify Experts
Fast Turnaround
Unlimited Revisions
CRO Focused
Ongoing Support

Building the technology layer behind modern eCommerce.

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Mudcy
Your on-demand Shopify growth team development, CRO, and the infrastructure that scales D2C brands.
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