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Discovery & requirement mapping
Structured discovery session covering business model, integrations, growth plans, and — for migrations — a full audit of the existing store. Output: scoped brief and architecture plan.
BigCommerce Development Services — Custom eCommerce Solutions
From custom Stencil themes and app integrations to full store migrations and headless builds — expert BigCommerce development for brands across the USA, UK, and India.
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BigCommerce stores
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Years in Business
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week Fastest delivery
What we build BigCommerce development services
Custom theme design & development
Fully custom Stencil storefronts — mobile-optimised, Core Web Vitals ready, and built for conversion. Every line of code written for performance.From $3,000 · 3–6 weeks
App & plugin development
Custom BigCommerce apps via the REST and GraphQL API — product configurators, wholesale pricing engines, subscription billing, custom checkout flows.From $2,500
API & third-party integrations
ERP(SAP, NetSuite, Odoo), CRM (Salesforce, HubSpot), Klaviyo, Stripe, PayPal, FedEx, UPS — fully documented and handed over with test coverage.Scoped per integration
Store migration to BigCommerce
From Shopify, WooCommerce, or Magento — full product, customer, order data transfer with URL redirects for SEO. Under 4 hours customer-facing downtime.From $3,000 · 3–6 weeks
Headless BigCommerce
Next.js / Catalyst frontend on BigCommerce GraphQL API — maximum performance and content flexibility for high-traffic, omnichannel brands.From $15,000 · 10–20 weeks
BigCommerce B2B setup
Customer group pricing, quote management, net payment terms, purchase orders, company account management — configured to your exact wholesale workflow.Scoped on requirements
How we work Our development process
<span>Eight steps from discovery to post-launch support — every BigCommerce project delivered to a defined scope and timeline.</span>
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Architecture & tech stack planning
Right BigCommerce plan tier, Stencil approach, API integration map, and third-party tool stack defined before a line of code is written. Scope risks flagged upfront.
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Custom theme design
High-fidelity mockups of homepage, collection, product, and checkout pages — reviewed and approved before development begins.
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Development & integration
Stencil theme built to BigCommerce best-practice guidelines with version control. API integrations implemented and fully documented.
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Data migration
Product, customer, and order data exported, transformed, and imported on staging first. URL redirects mapped 1:1. Data integrity verified before cutover.
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QA & testing
Cross-device (iOS, Android, desktop), cross-browser (Chrome, Safari, Firefox, Edge), and full purchase flow testing. Core Web Vitals benchmarked before deployment.
FAQ
BigCommerce development cost depends on the scope of your project. A starter store with theme customisation and basic integrations typically costs $3,000–$8,000. A fully custom build with multiple integrations and custom app development ranges from $8,000–$30,000. Enterprise headless builds start from $30,000. Migration projects cost $3,000–$12,000 depending on data volume and complexity. Ongoing monthly support retainers start from $1,500/month. PerfectionGeeks offers rates 40–60% below equivalent US and UK agencies — contact us for a free project estimate.
A starter store customisation takes 2–4 weeks. A custom build with multiple integrations typically takes 6–10 weeks. Headless or enterprise projects take 10–20 weeks. Migration projects run 3–6 weeks. All timelines are defined and fixed in the discovery phase — no scope creep surprises.
Yes — BigCommerce Enterprise is built for high-volume operations. It offers unlimited API calls, multi-storefront management, native B2B Edition (quote management, customer group pricing, net payment terms), headless support via Catalyst, and no GMV-based transaction fees. Used by Skullcandy, Black Diamond, and Avery. PerfectionGeeks has configured BigCommerce Enterprise for B2B and wholesale clients across the USA and UK.
BigCommerce charges no transaction fees on any plan — at $1M GMV that saves $10,000+/year vs Shopify. BigCommerce has native B2B features (quote management, purchase orders, net payment terms) that Shopify requires paid apps to replicate. Shopify has a larger app marketplace (8,000+ vs ~1,000). PerfectionGeeks develops on both and will recommend the right platform for your specific business after a free assessment.
Yes — we have completed 20+ BigCommerce migrations from Shopify, WooCommerce, Magento, and custom platforms. Our process covers full product catalogue transfer, customer records, order history, URL redirect mapping for SEO, and payment gateway reconfiguration — with under 4 hours customer-facing downtime. 30-day post-migration support is included at no charge.