BigCommerce agency for fast, scalable online stores
BigCommerce developers for Stencil themes, B2B stores and API integrations
BigCommerce gives you enterprise features without the hosting headaches. Our BigCommerce developers build custom themes, B2B storefronts and integrations that turn the platform into a store your team enjoys running.
BigCommerce challenges we solve
If any of these sound familiar, we can help.
Generic theme
Your store looks like every other BigCommerce shop.
B2B needs
Trade pricing, quotes and customer groups need careful set-up.
Disconnected systems
ERP, PIM and accounting are not connected to the store.
Slow storefront
Too many apps and scripts slow down Stencil themes.
Platform move
Moving from Magento, WooCommerce or another platform feels risky.
Unclear costs
Plans, apps and fees add up without a clear plan.
Our BigCommerce development services
Everything you need to build, launch and grow, from one team.
Stencil theme development
Custom themes and theme customisation that load fast and convert.
BigCommerce B2B
B2B storefronts with price lists, customer groups and quotes.
API integrations
ERP, PIM, CRM and shipping integrations through the BigCommerce API.
Apps & features
Custom apps and features when the app store does not fit.
Migration to BigCommerce
Data, design and SEO-safe redirects from your current platform.
BigCommerce support
Ongoing fixes, updates and improvements.
Our BigCommerce process
A clear, step-by-step plan, so you always know what we are doing and why.
Discovery
We learn about your business, customers and goals before writing a line of code.
Plan & quote
A clear scope, timeline, milestones and an itemised quote.
Design
Wireframes and designs focused on your brand and on conversion.
Development
Clean, scalable code built on the right platform, with regular updates.
Testing & launch
Testing on every device and browser, SEO-safe redirects and a monitored go-live.
Support & growth
Ongoing support, maintenance and improvements after launch.
Live websites we have worked on
Real client projects. Click any card to visit the site.
What our clients say
“Our e-commerce website needed both development and SEO support. The team helped us improve the website structure, product pages, and search optimization. They were responsive whenever we had questions or needed adjustments. Overall, a very smooth and professional experience.”
“The team helped us with both website development and digital marketing. They were able to understand our business requirements and recommend the right solutions. Their combination of web development, SEO, and advertising knowledge was particularly useful. A reliable agency with excellent communication.”
“Our business needed a combination of web development, SEO, and online advertising. AdvertX Agency provided support across all three areas and understood our requirements well. They were especially helpful with improving our website and creating a better marketing strategy. Professional team, good communication, and a great overall experience.”
Why choose AdvertX for BigCommerce
BigCommerce developers, plus SEO and ads in-house
Your site is built SEO-ready and conversion-focused, and the same team can grow it with SEO and paid ads after launch.
Real, live client websites
Our work is public. See the portfolio and visit the sites yourself.
One project manager
A single point of contact, clear milestones and honest updates from start to finish.
Support after launch
Maintenance, fixes and new features once your site is live, so it keeps performing.
BigCommerce Development FAQs
BigCommerce has monthly plans based on your sales, plus any apps or custom development. We can help you choose the right plan and estimate total costs.
Yes. We build B2B stores with customer groups, price lists, quotes and account features.
Yes. We migrate products, customers and orders and set up redirects to protect your SEO.
Yes. We provide ongoing development and support for BigCommerce stores.
Ready to build something that sells?
Tell us about your project. We will review it for free and send a clear plan and an itemised BigCommerce quote.
Prefer email? contact@advertxagency.co.uk