Sell on Castorama Marketplace, managed from invtri.

What Castorama Marketplace is

Kingfisher launched the Castorama France marketplace in March 2024 on “a scalable Kingfisher technology platform built in conjunction with partners at Mirakl”, Retail Technology Innovation Hub reported⁷. Under its buyer terms, Castorama France acts as an intermediary and online platform operator, and each seller is a professional who has subscribed to Castorama’s services⁸.

Here is how the two Castorama marketplaces compare, from their launch announcements and Kingfisher’s half-year results to 31 July 2026²:

Castorama Poland. The seller rules on this page come from Castorama France’s own pages¹⁸⁵. Kingfisher’s 2026 results mention the addition of complementary third-party cooling products to the Polish marketplace². Ask Castorama Poland for the seller terms that apply there.

Who can sell on Castorama Marketplace

On its marketplace page, Castorama says it “choisit uniquement des vendeurs professionnels basés et qui expédient depuis la France et l’Union Européenne” (only chooses professional sellers based in, and shipping from, France and the EU)¹. Your offers must also relate to DIY and home improvement¹.

Castorama’s page on listing and ranking says it monitors sellers’ activity through quality indicators, including these three⁵:

• the number of sales you make
• how fast you prepare and ship each order
• the quality of your customer service and after-sales

It gives no numeric targets for them⁵. The marketplace page names other criteria, such as cancellations before shipping, on-time delivery and the return rate, and temporarily suspends a seller who keeps missing them¹.

If you are based outside France. Castorama’s rule settles most of it; check the VAT points with your adviser:

• A professional seller based in, and shipping from, another EU country meets the rule¹.
• The rule names only France and the EU, so a seller based in the UK, or anywhere else outside the EU, does not meet it as written¹.
• If your business is established in only one EU country, your home VAT can apply while your cross-border sales to EU consumers stay at or below €10,000, excluding VAT, in both this calendar year and the last⁹.
• Once you pass €10,000, French VAT applies to your sales to French consumers on Castorama, and the One Stop Shop lets you report and pay it from one EU country⁹¹⁰.

Fees, sponsored offers and payouts

Castorama sets its seller fee in its Conditions Générales d’Utilisation Vendeur (seller terms of use), which sellers accept before listing⁵. Its listing and ranking page gives no rate, and says the fee has no bearing on the order in which offers appear⁵. Check commission and any subscription before you sign.

Sponsored offers are a separate, paid service, and they carry the label “sponsorisés” (sponsored)⁵. Under the buyer terms, PayPal (Europe) S.à r.l. et Cie provides payment services to marketplace sellers⁸.

In July 2026, ChannelX reported that Storfund’s Daily Advance is embedded in the French marketplace⁴. It lets sellers receive their money as soon as goods ship, instead of waiting for marketplace payouts⁴. Séverine Geoffroy, Castorama’s Directrice Market Place, said: “Faster access to funds can make a huge difference for marketplace merchants”⁴.

Your Castorama prices come from the same Mirakl margin rules as your other storefronts, with the fee percentage set separately for Castorama.

How to apply

Castorama’s marketplace page asks would-be partners to get in touch: “Contactez-nous pour devenir vendeur partenaire” (contact us to become a partner seller)¹. The route runs through Castorama France’s seller support platform:

1. Open castorama.fr/marketplace and click “Devenir vendeur”¹.
2. This opens the Castorama France Plateforme de Support Vendeur (seller support platform), where you complete the application form⁶.
3. Castorama then chooses its sellers¹. Reporting the Polish launch in January 2025, ChannelX wrote that merchants are “selected by Castorama experts” and verified against Castorama’s quality and ethical standards³.
4. If you are accepted, you subscribe to Castorama’s seller services under the seller terms of use, which set your fee⁸⁵.

Delivery and returns

Castorama’s partner sellers offer home delivery only¹. Returns and refunds of marketplace items are handled online only, and none can be made in a Castorama store¹.

The buyer terms leave the details to each seller: returns follow your own delivery and returns policy (article 5.2.1), and you handle after-sales (articles 5.2.3 and 10.2)⁸.

Recent changes

• 23 January 2025: Kingfisher announced the launch of the Castorama Poland marketplace, on its platform built with Mirakl³.
• 9 July 2026: Storfund’s Daily Advance was announced as embedded in the French marketplace⁴.
• September 2026: Kingfisher’s half-year results reported group marketplace GMV up 42% to £372m for the six months to 31 July 2026, 18% of its e-commerce sales².