Web development · E-commerce

Build a professional e-commerce site that actually sells

Launching an online store is easy. Building a profitable e-commerce business — fast, well-ranked, with a purchase funnel that converts — is much harder. Exoa builds stores on WooCommerce, PrestaShop and Shopify, choosing the platform to fit your project, not our habits. An honest comparison, real costs and mistakes to avoid: it's all on this page.

The must-haves of an online store that converts

Before talking platforms, let's talk fundamentals. These four building blocks make the difference between a store that sells and a store that merely exists.

Secure multi-method payment

Card, PayPal, Apple Pay — and depending on your markets, Bancontact or Payconiq. Every missing payment method means lost sales at the decisive moment. Stripe or Mollie setup included, 3D Secure too.

Catalogue and stock under control

Variants (sizes, colours), synchronised stock, bulk imports, per-country VAT management. A well-structured store from the start saves you months of catching up as the catalogue grows.

Automated shipping

Fees calculated in real time, pick-up points, parcel tracking, automatic shipping emails. Shipping is the number one reason for cart abandonment: it must be clear, fair and free of surprises.

Product SEO from day one

Optimised product sheets, Product structured data, well-built categories, feeds Google Shopping : your catalogue must be findable without relying solely on paid advertising.

WooCommerce, PrestaShop or Shopify: the honest match-up

There is no best platform in absolute terms — only the one that fits your catalogue, your teams and your budget. Our comparison, straight talk included.

CriterionWooCommercePrestaShopShopify
Ideal forStores with a strong content/SEO dimension, catalogues up to ~5,000 productsLarge catalogues, B2B, European multi-store setupsFast launch, D2C brands, non-technical teams
Build cost3 000 – 6 000€€3,000 – €8,0003 000 – 5 000€
Recurring costsHosting €20-60/month + maintenanceHosting €30-80/month + maintenanceSubscription €27-289/month + fees
Ownership and freedomTotal : open code, your data stays with youTotal : open code, your data stays with youLimited: closed platform, export possible
Search Engine OptimizationExcellent (WordPress ecosystem)Very good, technically demandingGood, with some rigidity (URL structure)
Everyday easeGood, requires some disciplineAverage, more technical interfaceExcellent, built for merchants

Our role: recommending the right platform after analysing your catalogue and your goals — we work with all three every day.

Real costs of an e-commerce site: de 3 000 à 8 000€

The price depends on the catalogue, the integrations and the level of automation. Three tiers to find your place.

Launch
Starting at3 000 – 5 000€
Start selling online on solid foundations.
  • Up to ~100 products integrated
  • Payment and shipping configured
  • Custom responsive design
  • On-page SEO and transactional emails
  • Store management training
Request a quote →
Custom-built
Starting at€8,000 and up
B2B, multi-store, ERP/CRM connectors.
  • Pricing per client profile, online quotes
  • Multi-language and multi-currency
  • ERP, PIM, CRM synchronisation
  • High-performance architecture
  • Dedicated strategic guidance
Discuss my needs →
💡Recurring costs to plan for: hosting or subscription, payment fees (1.5 to 2.9% per transaction) and maintenance (€80 to €200/month for an e-commerce site).

The 6 mistakes that sink a launch e-commerce

Seen time and again on the stores we take over. Better to avoid them from the start.

Choosing the platform before the project

You pick Shopify "because everyone does", then discover its limits on your specific case. Specifications first, technology second.

Neglecting product sheets

Descriptions copied from the supplier, average photos: guaranteed duplicate content and zero differentiation. Your product sheets are your salespeople — invest in them.

Relying on advertising alone

Without SEO, every sale depends on an ad budget. Organic rankings take months: they must start at launch, not when margins run out of breath.

A checkout funnel that's too long

Mandatory account creation, shipping costs revealed at the last step: around 70% of carts are abandoned. Every friction point removed shows up in sales.

Forgetting mobile

More than 60% of e-commerce traffic is mobile. A store designed for desktop then "adapted" to mobile structurally converts worse.

Migrating without a redirect plan

Changing platforms without redirecting the old URLs wipes out years of SEO. Any migration must preserve your SEO history.

Your online store in 5 steps

From 4 to 8 weeks depending on the catalogue, with a schedule made contractual in the quote.

STEP 01

Scoping and platform

Analysis of your catalogue, markets and logistics flows. A reasoned recommendation: WooCommerce, PrestaShop or Shopify.

STEP 02

Design and purchase journey

Mockups of the key pages: homepage, category, product page, cart, checkout. Conversion-optimised from the first sketch.

STEP 03

Development and catalogue

Store integration, product import, VAT setup, payment and shipping. Product SEO included.

STEP 04

End-to-end testing

Real test orders: payment, emails, stock, refunds, mobile. Nothing goes live without having been purchased in a test.

STEP 05

Launch and growth

Go-live, indexing, Shopping feed, training. Then SEO and acquisition support if you wish.

Frequently asked questions — e-commerce development

WooCommerce, PrestaShop or Shopify: which to choose?
WooCommerce is ideal if you want WordPress flexibility, excellent SEO and full ownership of your store. PrestaShop excels with large catalogues and European B2B needs — see our expertise PrestaShop SEO. Shopify is the fastest to launch and the simplest to operate, in exchange for a subscription and fees — see our expertise Shopify SEO. The right choice depends on your catalogue, your teams and your acquisition strategy.
How much does a professional e-commerce website cost?
Allow €2,000 to €4,000 for a starter store, €4,000 to €8,000 for a complete store with product SEO and automations, and €8,000 or more for custom builds (B2B, multi-store, ERP). Add recurring costs: hosting or subscription, payment fees (1.5 to 2.9%) and maintenance.
How long does it take to launch an online store?
De 4 to 8 weeks for most projects: scoping, design, development, catalogue integration, full testing, then launch. Custom projects or large catalogues can take 3 to 4 months. Preparing your product sheets (photos, descriptions, prices) is often the limiting factor.
Which features are truly essential?
Secure multi-method payment, reliable stock management, automated shipping fees, a short checkout funnel, SEO-optimised product sheets with structured data, and transactional emails (confirmation, shipping, abandoned cart). The rest — subscriptions, loyalty, marketplace — can wait for phase 2.
Can you migrate my existing store?
Yes. We migrate products, customers, orders and SEO history (301 redirects included) from Shopify, PrestaShop, WooCommerce, Wix or Magento. The migration is planned to avoid any interruption in sales and preserve your Google rankings. Also see our dedicated offer on the page e-commerce website development.

Launch a store that sells, not just a store.

Describe your catalogue and your goals: we recommend the right platform and quote your store within 48h.

Request my e-commerce quote →
✓ WooCommerce · PrestaShop · Shopify · ✓ No commitment