Ecommerce Web Development Company for Custom Online Stores
Bespoke ecommerce website design and development, built around how your business actually sells.
ECLETE is an ecommerce web development company for UK brands whose stores have outgrown templates. We design and build custom ecommerce websites on Shopify, Shopify Plus and WooCommerce, with the features, integrations and checkout rules your business needs.
From trade pricing and product configurators to stock and warehouse integrations, we plan each build around your operations first, so the site saves your team time instead of creating more work.
When Your Store Needs Custom Ecommerce Web Development
A theme and a few apps work well until your business does not fit them.
2+If two or more of these sound familiar, a custom build is usually worth discussing.
Our Custom Ecommerce Development Services
Design, development and integrations from one ecommerce website development agency.
Custom Ecommerce Website Design
Bespoke, not borrowed.
Custom ecommerce web design services built from your brand, products and customer journeys rather than a stock template.
Custom Ecommerce Development
Features built for how you sell.
Custom ecommerce website development services for the features off-the-shelf apps cannot handle well.
B2B & Trade Ecommerce
Wholesale, made simple.
Trade stores with customer-specific pricing, quick order forms, credit terms and account approvals.
System Integrations
Connect the systems behind your store.
We connect your store to stock, warehouse, accounting and CRM systems so data moves without manual work.
Marketplace Integration
Website, Amazon and TikTok Shop as one.
Product, stock and order sync between your store and your marketplace channels.
Replatforming
Move to a platform that fits.
Migrations to Shopify, Shopify Plus or WooCommerce with full data transfer and 301 redirects.
Custom Builds on the Right Platform
We choose the platform after discovery, based on your catalogue, integrations, budget and team.
Shopify
- Best for
- Brands that want a custom design with low maintenance
- What we build
- Custom themes, sections and app integrations
Custom design · Low maintenance
Shopify Plus
- Best for
- High-volume, B2B or multi-store brands
- What we build
- Checkout extensions, Shopify Flow automation, B2B features and custom apps
High volume · B2B · Multi-store
WooCommerce (WordPress)
- Best for
- Brands that need full code control or lots of content
- What we build
- Custom themes, custom plugins, complex product logic and integrations
Full control · Content-led
For Shopify-only projects, see our Shopify web development company page.
Ecommerce Website Design and Development Under One Roof
As an ecommerce website design company and development team in one, our designers and developers work together from the first wireframe, so what we design is what gets built.
This page covers custom builds. For our full range of ecommerce website development services, including Framer and WordPress websites, see the main Website Development page.
- Designs tested with your real products and content, not placeholder text
- Developers involved from the wireframe stage, so features are planned properly
- One point of contact from discovery to launch
- Mobile-first, accessible design that follows WCAG guidance
- Speed checks against Core Web Vitals and SEO foundations before launch
- UK checkout, GBP pricing, VAT and UK GDPR cookie consent built in
How We Build a Custom Ecommerce Website
Six clear stages, from a written specification to a store that keeps improving after launch.
Discovery & Requirements
We run workshops on your products, customers and systems, then write a clear specification.
Architecture
We confirm the platform, integrations, data flows and sitemap.
Design
We move from wireframes to a bespoke design and a clickable prototype.
Development
We build custom features in stages, with regular demos so you see progress.
Testing
We test features, speed, accessibility, integrations and checkout before launch.
Launch & Support
We launch with redirects and monitoring, then keep improving the store.
Why Choose ECLETE as Your Ecommerce Website Development Company?
A custom ecommerce website development company that understands operations and marketplaces, not just design.
Operations First
We plan the build around how orders, stock and customers move through your business.
Marketplace Experience
We manage Amazon and TikTok Shop accounts daily, so your store works with them.
Clean, Documented Code
You own the code, and it is documented so any developer can work on it.
SEO Protected
Rankings are protected during builds and migrations, not fixed afterwards.
One Team After Launch
The people who build your store can also run your ads, SEO and marketplaces.
Already selling on marketplaces? Our Amazon agency UK and TikTok Shop UK agency teams work alongside your web build.
Real Ecommerce Builds. Real Work Behind the Results.
See how we have helped brands build and grow custom online stores.
We believe results should come with context.
In sales, up from £100 a month
Read the case study →
Return on Meta ad spend
Read the case study →
In sales with zero ad spend
Read the case study →
Rating on its second product
Read the case study →Explore the work behind the numbers and see what ECLETE actually implemented for each brand.
Frequently Asked Questions
Planning a custom build? Talk to the team that designs, builds and grows UK stores.
What is custom ecommerce web development?
It means building the design, features or integrations specifically for your business, rather than relying only on a template and third-party apps.
How much does a custom ecommerce website cost in the UK?
It depends on the design, features and integrations you need. We agree the scope in a written specification, then give you a fixed quote in GBP.
How long does a custom ecommerce build take?
Most custom builds take from several weeks to a few months, depending on features and integrations. We agree the timeline in the specification before work starts.
Should I choose a custom build or a Shopify theme?
If a theme and a few apps do the job, start there. A custom build makes sense when your products, pricing, checkout or systems need more than a theme can offer. We will tell you which fits.
Can you connect my store to our stock or warehouse system?
In most cases, yes. We check your systems during discovery and confirm how each integration will work before we quote.
Do you build B2B ecommerce websites?
Yes. We build trade stores with customer-specific pricing, quick order forms, company accounts and payment terms on Shopify Plus or WooCommerce.
Who owns the code and the website?
You do. The store, domain, code and data belong to you, and every account is set up in your name.
Do you provide support after launch?
Yes. We offer ongoing support and development, from fixes and updates to new features and conversion improvements.