Magento Development Services in the UK
Build, grow, and scale your eCommerce with a trusted UK-based Magento agency.
At StreamMarket, we specialise in designing, developing, and supporting Magento (Adobe Commerce) stores for retailers and B2B businesses across the UK. Whether you’re launching your first eCommerce website, migrating from another platform, or optimising an existing Magento store, our friendly, team is here to help you every step of the way.
Magento is one of the most powerful and flexible eCommerce platforms available, trusted by top brands and thousands of online retailers worldwide. With the right development partner, it becomes a store that’s fast, secure, easy to manage, and built to grow with your business.
If you’re looking for a Magento development agency that understands the UK market, communicates clearly, and genuinely cares about your long-term success — you’re in the right place.
Why Choose Magento for Your eCommerce Store?
Magento (now Adobe Commerce) is a feature-rich platform that offers more flexibility than almost any other eCommerce solution. It’s ideal for businesses that want complete control over their store, advanced customisation, long-term scalability, and the ability to expand into new markets.
Here’s why so many UK retailers choose Magento:
Fully customisable
no limitations on design,
layout, or functionality
Scalable
perfect for growing product ranges and high-traffic stores
SEO-friendly
ideal for brands focused on organic growth
Multi-store and multi-language ready
great for expanding internationally
Extensive integrations
connect ERP, CRM, fulfilment, EPOS, and more
Strong B2B capabilities
custom pricing, quotes, corporate accounts, and complex catalogues
Our Magento Development Services
We offer a full range of Magento development services designed to support businesses at every stage — from planning and design to launch, optimisation, and long-term support.
Custom Magento Store Development
A great online store is more than just a website — it’s an experience.
Our team designs and builds Magento stores that are not only visually appealing, but also fast, intuitive, and built around how your customers shop.
What you can expect:
- Bespoke Magento theme development
- Hyvä, headless, or traditional architecture options
- Mobile-first layouts with clear UX flows
- SEO-friendly structure to support organic growth
- Conversion-focused UI designed for higher sales
We work collaboratively with you to make sure every detail of your store supports your brand and your business goals.
Magento Migration & Upgrade (Magento 1 to Magento 2 and Beyond)
If you’re moving from Magento 1, Shopify, WooCommerce, or a custom platform, we make the migration process smooth and stress-free.
Our migration approach includes:
- Secure transfer of products, orders, customers, and content
- Extension and module replacement or custom development
- Theme rebuilding using Hyvä or modern frontend frameworks
- Detailed SEO preservation (redirects, URLs, metadata, indexing)
- Comprehensive testing before launch
We work collaboratively with you to make sure every detail of your store supports your brand and your business goals.
Magento Integration Services
A well-integrated store saves time, reduces errors, and gives your team better control of operations.
We connect Magento with the tools you already use — including UK-native systems.
Common integrations include:
- Payment gateways: Stripe, Klarna, PayPal, Apple Pay
- Accounting: Sage, SAP, Xero, Brightpearl
- CRM: HubSpot, Salesforce, Zoho
- Shipping & couriers: Royal Mail, DPD, ParcelForce, Evri and more
- Warehouse & inventory systems
- Marketing tools: Klaviyo, Mailchimp, GA4, Meta
If your business uses a platform not listed above, chances are we’ve integrated it before — and if not, we can build a custom solution.
Magento Performance Optimisation
A slow store costs sales.
We help you deliver fast, reliable experiences that customers love and Google rewards.
Our optimisation services include:
- Core Web Vitals improvements
- Server and hosting audits
- Full caching setup (Redis, Varnish, CDN)
- Image compression and asset optimisation
- Checkout performance tuning
- Database clean-up and indexing improvements
Clients typically see faster load times, higher conversions, and better search visibility.
Magento Support & Maintenance
We offer ongoing Magento support plans to keep your store secure, stable, and performing at its best.
Our support includes:
- Proactive patching and updates
- Bug fixes and issue resolution
- Security monitoring
- Performance reviews
- Regular backups
- 24/7 monitoring and emergency support
No call centres — you speak directly with our technical team.
Security & Compliance
We ensure your store meets UK and EU compliance standards, reducing your risk and protecting your customers.
Our security service includes:
- GDPR-compliant data handling
- SSL setup and renewal
- Two-factor authentication
- Admin route protection
- Firewall rules and threat detection
- PCI-DSS guidance
- Malware scanning
Security is not optional — we make it easy and reliable.
Magento Open Source vs Adobe Commerce:
Which One Do You Need?
Choosing the right Magento edition can be confusing — but we make it simple.
Magento Open Source (Free Version)
Best for SMEs, start-ups, and growing merchants who want flexibility without a high annual licence fee.
Adobe Commerce (Paid Enterprise Version)
Perfect for larger retailers, wholesalers, or multi-store operations that need advanced B2B tools, AI-powered analytics, and dedicated cloud hosting.
| Feature | Magento Open Source | Adobe Commerce |
|---|---|---|
| Cost | Free | Annual licence fee |
| Hosting | Self-hosted | Adobe Cloud included |
| Features | Core eCommerce | B2B suite, AI, personalisation |
| Scalability | High | Enterprise-grade |
| Support | Community & agency | Adobe-backed |
If you’re unsure which edition fits your business best, we’ll guide you through the decision with complete transparency.
Industry
Industries We Work With
We’ve delivered Magento solutions for a wide range of UK industries — each with its own unique needs.
Mobility Sector (One of Our Specialties)
VAT-exempt checkout Multi-branch showroom stock syncing Equipment comparison tools Product education content Accessible UX for assisted users
Fashion & Apparel
Size and colour variations Fast-loading lookbooks Wishlist and style guides High-performance image optimisation
Healthcare & Wellness
GDPR-compliant customer flows Secure product handling Telehealth or consultation booking integrations
Logistics & Wholesale (B2B)
Custom pricing Quotation workflows Purchase orders Tiered customer accounts
Electronics & Technical Products
Large product catalogues Advanced filtering Warranty & product registration
No matter your industry, we tailor Magento to fit your operations — not the other way around.
Our Magento Development Process
Clear communication and a smooth delivery experience are at the heart of every project we work on. Our process keeps everything organised and transparent.
-
Discovery & Planning
Technical audit, user journeys, integrations, and project roadmap.
-
UX & Wireframing
Figma/Adobe XD prototypes built with conversion and clarity in mind.
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Development & Integration
Agile sprints managed via JIRA, with code versioning in GitHub.
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Testing & QA
Cross-browser testing, accessibility checks, and security validation.
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Launch & Deployment
Zero-downtime deployments and go-live support.
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Training & Ongoing Support
Team training, documentation, and post-launch monitoring.
Most projects take:
8–14 weeks for Magento Open Source
12–20 weeks for Adobe Commerce
Why UK Businesses
Choose StreamMarket
- Certified Magento developers
- Clear communication with no jargon
- Proven experience across B2C and B2B
- Agile project management to keep timelines on track
- Deep understanding of UK retail, mobility, and wholesale sectors
- Long-term partnership approach — not a one-off build
When you choose StreamMarket, you’re partnering with a friendly, reliable, and experienced UK team committed to helping your business grow.
Magento FAQs
What is Magento and how is it different from Shopify?
How much does Magento Development cost in the UK?
How long does a Magento project take?
Which Magento edition do I need?
Do you offer Magento 2 migrations?
Do you provide Magento support?
Ready to Build or Improve Your Magento Store?
Whether you're starting from scratch, migrating to Magento, or upgrading an existing store, we're here to help you grow confidently.
Choose the path that fits you:
- Start from Scratch
- Migrate to Magento
- Get a Magento Audit
Or speak to us directly