Best BigCommerce to WooCommerce Migration Agencies in the UK (2026)

Most BigCommerce merchants evaluating a platform exit in 2026 end up on a shortlist of two: Shopify or WooCommerce. The majority pick Shopify, and there are good reasons for that. But a meaningful minority choose WooCommerce instead – and I find that those merchants usually know exactly what they are doing. They are not confused about the options. They have run the numbers, understood the ownership trade-off, and made a deliberate decision that self-hosted beats SaaS for their situation. When that decision is right, it is genuinely right. When it is based on “WooCommerce is free”, things get expensive quickly.

BigCommerce’s June 2026 Open Payment Provider Fee – adding up to 2% on every non-embedded gateway transaction – has accelerated migration decisions for merchants who were already calculating their total cost of ownership. For some of those merchants, the calculation points to Shopify. For those whose requirements include content-driven SEO, deep checkout customisation without Plus pricing, or genuine database ownership, the calculation points to WooCommerce.

This guide covers the ten best agencies for a BigCommerce to WooCommerce migration in the UK, the technical and operational differences that make this a more demanding migration route than most expect, and the questions worth asking before you commit to any agency. For context on what WooCommerce development looks like at the build stage, before or after migration, see the WooCommerce development service overview.

Quick Picks: Best BigCommerce to WooCommerce Migration Agencies in the UK

The Honest Case for Moving From BigCommerce to WooCommerce

BigCommerce is a solid SaaS platform. It handles hosting, security, patches, PCI compliance and uptime automatically. That is worth something real – and I will not pretend otherwise just to make WooCommerce sound more attractive. But there are four situations where WooCommerce makes more engineering sense than either staying on BigCommerce or moving to Shopify.

Platform fee exposure at scale. BigCommerce’s Open Payment Provider Fee added up to 2% to every non-embedded gateway transaction from June 2026. That cost sits on top of the existing revenue-based tier pricing. At £500,000 GMV, the platform fee structure becomes difficult to ignore. WooCommerce has no GMV-based pricing and no transaction fees. Hosting costs are real but fixed.

Content-driven SEO architecture. WooCommerce runs on WordPress. For merchants whose organic traffic comes from content marketing, editorial publishing, or technical SEO at a level that requires full URL structure control and direct sitemap management, WordPress is a meaningfully better environment than BigCommerce’s CMS. The SEO flexibility compounds over 12 to 24 months when implemented correctly.

Checkout and B2B customisation without Plus pricing. WooCommerce allows deep checkout modifications through plugin architecture and custom PHP without requiring a premium tier subscription. BigCommerce merchants who need complex B2B workflows – customer-specific pricing, approval workflows, custom payment terms – can achieve these on WooCommerce without the Shopify Plus annual fee that the equivalent Shopify B2B capability requires.

What merchants take on in exchange. WordPress hosting, plugin updates, security patching, database maintenance, performance optimisation under traffic load. These are real ongoing responsibilities. BigCommerce handled all of them for you. WooCommerce does not. Any agency that does not make this explicit before scoping a BigCommerce to WooCommerce migration is selling you the upside without disclosing the cost. For context on what that ongoing support looks like post-migration, the eCommerce maintenance service covers the WooCommerce maintenance model in detail.

The 10 Best BigCommerce to WooCommerce Migration Agencies in the UK (2026)

1. ChilliApple

• Team Size: 70+ (LinkedIn confirmed)
• Expertise/Specialisms: WooCommerce development and maintenance, BigCommerce maintenance, Shopify, Magento, platform migrations, bespoke plugin development, SEO, 24/7 support
• Office Locations: London, Kent
• Prices: On request

ChilliApple is the agency I would call first for a BigCommerce to WooCommerce migration, specifically because they actively maintain BigCommerce stores and WooCommerce stores simultaneously. That cross-platform operational knowledge is the differentiator that matters in a source-to-destination migration. An agency that only knows WooCommerce understands where you are going. ChilliApple understands both sides of the move – the data architecture you are leaving and the environment you are building into – from maintenance-level daily engagement with both platforms.

Their 70-plus team with London and Kent offices, 95% client renewal rate on maintenance contracts, and tiered Bronze-to-Platinum support model covering Shopify, WooCommerce and Magento means they can handle post-migration maintenance from the same team that built the migration. For BigCommerce merchants moving to WooCommerce and taking on WordPress hosting and plugin maintenance responsibility for the first time, that continuity is worth more than saving a few pounds on the initial migration cost.

Worth Knowing: ChilliApple’s strength is accessible mid-market pricing and multi-platform continuity. Merchants with highly specialised BigCommerce configurations or very large enterprise B2B requirements should confirm that the specific complexity is within their confirmed delivery evidence before proceeding.

2. Kanuka Digital

• Expertise/Specialisms: Platinum Certified WooExpert, WooCommerce B2B, BigCommerce migration to WooCommerce, ISO9001 and ISO27001, ERP integration, dynamic pricing, subscription and membership systems, custom plugin development
• Office Locations: Stafford
• Clients: Bacofoil, Tile Giant, Willows Veterinary Group, Buy4Pets Online
• Prices: On request

Kanuka Digital hold Platinum Certified WooExpert status – the highest tier in Automattic’s WooCommerce partner programme – alongside ISO9001 and ISO27001 information security accreditation. They explicitly list BigCommerce migrations to WooCommerce as part of their service scope, covering products, customers, order histories, subscription data, and dynamic pricing configurations. Their SEO-first approach to WooCommerce builds means redirect mapping and technical SEO structure is built into the migration rather than retrofitted after launch.

Their client base – Bacofoil, Tile Giant, Willows Veterinary Group – gives a reference point for the B2B and regulated sector complexity they can handle. ISO27001 accreditation is specifically relevant for BigCommerce merchants in healthcare, food, pharmaceutical or regulated sectors where information security compliance is a procurement requirement. Their experience with dynamic pricing setups and ERP integrations is directly relevant for BigCommerce B2B merchants whose customer-specific pricing logic needs rebuilding on WooCommerce.

Worth Knowing: Kanuka is Stafford-based and operates primarily remotely. Merchants who require in-person agency meetings or London-office presence should factor that into the shortlist decision.

3. WEBDIGITA

• Expertise/Specialisms: BigCommerce to WooCommerce migration, plugin gap analysis, URL redirect mapping, WooCommerce development, eCommerce migration governance, Shopify, Magento
• Office Locations: London, Reading, Birmingham
• Prices: From £5,000

WEBDIGITA is my agency. I include this profile because the migration methodology is worth explaining, not to make the shortlist look fuller than it is.

BigCommerce to WooCommerce migrations are a SaaS-to-self-hosted transition, and that distinction changes the scope of what a pre-build audit needs to cover. My pre-build process runs a plugin gap analysis – mapping every BigCommerce app and native feature against WooCommerce plugin equivalents – before scope and cost are agreed. Some BigCommerce features, particularly in checkout customisation and B2B quoting, have no direct WooCommerce plugin equivalent and require custom PHP development. Discovering that mid-project is how budgets collapse.

Migrations start from £7,800 at WEBDIGITA – approximately 40% below the UK market average of £13,000 for comparable BigCommerce to WooCommerce engagements. Migration scope covers products, customers, orders, URL redirects, blog content and metadata. Hosting setup, plugin configuration and post-launch maintenance are scoped separately and explicitly, because the ongoing maintenance responsibility is a real cost that should be part of the total migration decision, not discovered after the site goes live. WEBDIGITA operates from London, Reading and Birmingham, and for merchants evaluating eCommerce integration requirements on their new WooCommerce store, the integration guide covers the landscape in depth.

Worth Knowing: WEBDIGITA’s strength is mid-market UK eCommerce brands. Very large enterprise BigCommerce deployments with complex multi-storefront architecture and extensive custom development are better suited to larger agency teams.

4. Envisage Digital

• Expertise/Specialisms: WooCommerce development, BigCommerce development and migration, Shopify, Magento, Adobe Bronze Partner, SEO, paid media, 24/7 support, hosting
• Office Locations: Bournemouth
• Clients: Specialist Crafts
• Prices: On request

Envisage Digital are the only agency on this list holding both BigCommerce partner status and active WooCommerce development capability – which means they understand the source platform from a certified development standpoint, not just from knowledge of BigCommerce’s data export formats. Over 15 years of combined eCommerce experience, their team explicitly covers BigCommerce to WooCommerce migrations, including products, customers, URL redirects and integration reconfiguration.

Their multi-platform coverage – BigCommerce, WooCommerce, Shopify, Magento – is particularly relevant for BigCommerce merchants who may not have fully committed to WooCommerce as the destination at the start of a discovery conversation. An agency that can evaluate the migration destination objectively, having built on all four platforms, is more useful in pre-migration platform selection than a WooCommerce-only specialist with a structural incentive toward the platform they know best. Their 24/7 support offering is also worth noting for merchants currently relying on BigCommerce’s managed infrastructure who are concerned about the support gap that self-hosted WooCommerce creates.

Worth Knowing: Envisage Digital are Bournemouth-based with UK-wide remote delivery. Merchants requiring London-specific in-person presence should confirm meeting arrangements early.

5. Fitpixels

• Expertise/Specialisms: WooCommerce development and maintenance, DTC health, wellness and supplement brands, performance hosting, database optimisation, high-volume store management
• Office Locations: UK
• Prices: On request

Fitpixels have 13 years of WooCommerce experience and manage stores running up to £400,000 per month in revenue. Their specialism is DTC health, wellness and supplement brands – a sector with specific product information requirements, compliance considerations, and subscription billing complexity that generalist WooCommerce agencies handle inconsistently.

For BigCommerce merchants in these sectors, the relevant question when evaluating WooCommerce is not whether the platform can handle the order volume – Fitpixels’ production evidence at £400k/month confirms it can when hosting and database configuration is correct – but whether the agency handling the migration has the performance engineering knowledge to build a WooCommerce environment that matches BigCommerce’s managed infrastructure at scale. That performance question is what distinguishes Fitpixels from generalist WooCommerce agencies who build to standard configurations. Their Foundation, Growth and Full-Service plan tiers provide a clear ongoing support structure post-migration.

Worth Knowing: Fitpixels’ confirmed specialism is DTC health, wellness and fitness. BigCommerce merchants in B2B, fashion, food, or manufacturing should ask specifically about sector experience before assuming their fit.

6. Atomic Smash

• Team Size: 20 in-house (confirmed)
• Expertise/Specialisms: Certified WooExpert, WordPress and WooCommerce development, continuous store improvement, accessibility, UX, iterative design and development
• Office Locations: Bristol
• Prices: On request

Atomic Smash are a Bristol-based certified WooExpert and Certified B Corp with a 20-person in-house team. Their core service model is continuous improvement on existing WooCommerce stores rather than primarily handling new builds – an unusual and relevant positioning for BigCommerce merchants migrating to WooCommerce. The period immediately after a platform migration is when stores are most vulnerable: configuration decisions made during the build surface as operational problems under live traffic, and the agency that built the store is the right one to fix them iteratively rather than treating the migration as a closed project.

Atomic Smash’s stated approach – making existing WooCommerce stores exceptional through iterative design and development – directly addresses the post-migration optimisation phase that most migration agencies hand off after launch. They have worked with some clients for over a decade, which for a BigCommerce merchant taking on WooCommerce maintenance responsibility for the first time is a meaningful signal about the stability of the ongoing relationship.

Worth Knowing: Atomic Smash’s strongest evidence is in WooCommerce improvement rather than BigCommerce-source migration. Ask specifically about their BigCommerce data migration experience and plugin gap methodology before confirming the engagement.

7. Jigowatt

• Expertise/Specialisms: WooCommerce development, WordPress, Woo Pro Partner, long-term client relationships, eCommerce builds
• Office Locations: UK
• Prices: On request

Jigowatt are a Woo Pro Partner operating since 2008 – among the earliest dedicated WooCommerce agencies in the UK. An agency building on WooCommerce since 2008 has encountered and solved every meaningful iteration of plugin conflict, hosting misconfiguration, checkout edge case, and upgrade failure the platform produces. That accumulated pattern recognition is not something a recently formed agency can replicate.

Their long-term relationship model is relevant for BigCommerce merchants moving to a self-hosted environment for the first time. The ongoing WordPress maintenance responsibility is real. An agency committed to long-term client relationships rather than project-and-exit delivery is structurally better suited to the WooCommerce maintenance model that a BigCommerce migration creates.

Worth Knowing: Jigowatt’s public case studies and team size documentation are limited. Confirm BigCommerce-specific migration experience and team capacity before proceeding to discovery.

8. Ronins

• Expertise/Specialisms: WooCommerce and Shopify development, checkout optimisation, B2B eCommerce, CRO, performance, ongoing retainers
• Office Locations: London, Surrey
• Prices: On request

Ronins are a London and Surrey eCommerce agency covering WooCommerce and Shopify, with a specific focus on checkout optimisation, CRO and B2B commerce. For BigCommerce merchants whose primary motivation for moving to WooCommerce is checkout customisation or B2B pricing capability without Shopify Plus pricing, Ronins’ specialism is the most directly relevant on this list.

BigCommerce has native B2B customer group pricing and checkout customisation that merchants depend on. Rebuilding equivalent functionality on WooCommerce requires an agency that understands which WooCommerce B2B plugin – B2BWoo, WholesaleX, wholesale pricing plugins – covers which requirement, and what requires custom PHP beyond the plugin layer. Ronins’ combination of WooCommerce and Shopify capability also means their platform comparison is informed by operational experience on both sides, rather than advocacy for WooCommerce alone.

Worth Knowing: Ronins’ public BigCommerce-source migration case studies are not extensively documented. Confirm their specific BigCommerce data migration experience and plugin knowledge during initial conversations.

9. The Digital Maze

• Expertise/Specialisms: WooCommerce development, WordPress, Woo Pro Partner, hosting, ongoing maintenance, platform migrations
• Office Locations: UK
• Prices: On request

The Digital Maze are a Woo Pro Partner that bundles hosting and ongoing maintenance alongside WooCommerce development. For a BigCommerce merchant migration, that bundled model addresses one of the hidden costs of moving to self-hosted: the hosting infrastructure needs to be set up, configured, and maintained after the migration, and agencies that own the hosting layer remove the configuration gap between migration delivery and ongoing environment management.

Their publication of the Top 10 WooCommerce Agencies in the UK guide indicates platform knowledge depth – a team that can credibly evaluate WooCommerce agencies against each other understands the platform at a meaningful level.

Worth Knowing: The Digital Maze’s BigCommerce-specific migration case studies are limited. Confirm BigCommerce source migration experience and plugin gap methodology during initial conversations.

10. Black Nova

• Expertise/Specialisms: WooCommerce development, WordPress, Woo Agency Partner Pro, hosting, ongoing maintenance, eCommerce builds
• Office Locations: Wiltshire, UK
• Prices: On request

Black Nova are a Wiltshire-based Woo Agency Partner Pro with over a decade of WooCommerce experience and a model that bundles hosting and maintenance alongside the development build. For BigCommerce merchants who want a single-agency relationship covering the migration, the hosting environment, and the ongoing maintenance, Black Nova’s model directly addresses that need. The value of having one team own the full stack – build, hosting, maintenance – becomes clear when something goes wrong after launch. A hosted agency that built the store and manages the server environment can diagnose issues across the full stack rather than coordinating between separate suppliers.

Their Wiltshire base and decade-long WooCommerce focus means they are not trying to be all things to all merchants. That specialisation may make them a useful option for UK merchants outside London who want geographical proximity alongside platform depth.

Worth Knowing: Black Nova’s public case study documentation and team size are limited. This is an agency to investigate for smaller to mid-market migrations; complex B2B BigCommerce configurations should validate team capacity and BigCommerce-specific migration experience early.

What to Ask a BigCommerce to WooCommerce Migration Agency

This migration route has specific risks that a generic WooCommerce agency checklist does not cover. These four questions surface the problems that cause post-launch failures on BigCommerce to WooCommerce projects.

How do you handle BigCommerce’s native checkout features in WooCommerce?

BigCommerce has a native single-page checkout with specific payment method configurations, abandoned cart recovery settings, and B2B checkout logic. None of that transfers to WooCommerce automatically. The agency should describe how each checkout feature is mapped to either a WooCommerce plugin or a custom PHP implementation, with that mapping completed and priced before scope is agreed.

How do you scope the hosting environment before migration begins?

WooCommerce performance under BigCommerce-equivalent traffic depends on hosting architecture – managed WordPress hosting with correct PHP and MySQL configuration, object caching, and CDN setup. An agency that builds the migration and leaves hosting to the merchant to sort out afterwards has not fully scoped the migration. Ask specifically what hosting they recommend, why, and whether they configure and maintain it.

What is your plugin gap analysis process?

BigCommerce apps – product configurators, B2B quoting tools, subscription billing systems, custom shipping rules – have no automatic equivalent in WooCommerce’s plugin library. The agency should complete a plugin gap analysis as a pre-scope deliverable, mapping every BigCommerce app and native feature against WooCommerce equivalents and custom PHP requirements, with costs attached to each gap before the migration engagement begins.

What does post-migration WooCommerce maintenance look like?

The correct answer describes a specific ongoing support model covering WordPress core updates, WooCommerce version updates, plugin maintenance, security patching, hosting management, and performance monitoring. An agency that says “support is available if needed” is describing a reactive break-fix service, not a maintenance model. Those are different things and BigCommerce merchants should understand the difference before signing.

BigCommerce to WooCommerce Migration Cost in the UK

UK market pricing for BigCommerce to WooCommerce migrations is lower than BigCommerce to Shopify because the destination platform is open source, but the total cost picture is more complex. The migration cost is one number. The ongoing cost is another, and it is one that did not exist on BigCommerce.

Mid-complexity migrations in the UK run from approximately £7,000 for simple stores with standard catalogue complexity and minimal BigCommerce app dependencies, to £30,000-plus for stores with complex B2B pricing, checkout customisation, and custom app replacement requirements. WEBDIGITA’s BigCommerce to WooCommerce migrations start from £7,800 – approximately 40% below the UK market average of £13,000 for comparable migrations.

The ongoing hosting and maintenance cost that replaces BigCommerce’s managed infrastructure typically runs from £500 to £2,000 per month depending on traffic, catalogue size, and the level of proactive maintenance the agency provides. That ongoing cost needs to be included in the total cost of ownership calculation when evaluating whether migration makes commercial sense. The migration pays back when the BigCommerce platform fee saving plus the operational improvement outweigh the migration cost and the new ongoing maintenance responsibility within a 24-month window.