Carefree service
Everything is delivered clean and tidy, including a 2-year warranty.
The highest quality sealant, finish and service. No quotes: get a fixed price online straight away.
No surprises — just clear communication and smooth contact via WhatsApp.
Transparent project prices. With our photo check you know exactly what to expect upfront.
We use only premium Ottoseal® sealant and take the time for a result worth showing.
We schedule quickly, work precisely, and always leave your home or business neat and clean.
Not good enough? We fix it. Period.
Take an overview photo and close-ups so all sealant lines are clearly visible.
Share your photos and location for your price confirmation.
Once approved, we schedule the job and take care of everything from A to Z.
Our specialties in the Amsterdam, Amstelveen and Haarlem area.
The perfect balance between design and waterproofing. We deliver clean lines that match your tiles and sanitary ware.
The invisible protection of your dream kitchen. Hygienic, food-safe, OTTOSEAL® quality and neatly finished along your worktop.
Finish your interior properly. From skirting to ceiling: sharp lines and a seamless look in every room.
Keep drafts, moisture and mould out. Durable sealing that lasts for years.
Reset your bathroom to like-new. We remove old sealant, deep-clean and apply a fresh, mould-resistant bead.
Unsure about leakage or mould? No guesswork. Send photos for honest advice — we’re happy to take a look.
You don't just let anyone into your home. We understand that better than most.
Caulking is often treated as a quick afterthought, but for me it’s a craft. Around Amsterdam, Amstelveen and Haarlem I see daily what rushed work and cheap materials cause: leaks costing thousands and mould returning within months.
De Kitbaas was born from a passion for detail, with more than 10 years of experience as the foundation. We're not a general handyman company — we specialise in fine finishing. We use modern techniques and take the time perfection needs. No rush jobs, no compromises, no half measures.
Whether it's a high-end apartment in De Pijp, a villa in Amstelveen or a renovation in Haarlem: we treat your home with respect. We clean up after ourselves and deliver a result that isn't just waterproof — it elevates your interior.
Everything is delivered clean and tidy, including a 2-year warranty.
Mechanical removal of old sealant and chemical deep cleaning.
Exclusively mould-resistant and colour-stable Ottoseal® (A-brand).
Razor-sharp lines, matched to your tiles or natural stone.
More examples on TikTok and Instagram.
Follow us for new projects:
Practical tips on clean finishing, preventing mould, and sealant that actually lasts. View all articles →
The secret to a perfect line between wall and ceiling? Seal first, then paint.
Why a thick bead of sealant moulds faster than a slim, tight joint in the bathroom.
Heat and grease are sealant's worst enemies. Here's how to keep the joint behind your hob in place.
What our customers say about De Kitbaas.
Fill in the form or send us a message via WhatsApp. Don't feel like typing or measuring? Send a few photos via WhatsApp and we'll handle the rest.
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Sealant work people actually watch
Get a feel for what we do best. You may already know us from TikTok or Instagram.
From old sealant to a sharp line
Over 1 million views · TikTok
Sink re-sealed: old sealant out, thoroughly degreased, neatly applied with Ottoseal S100.
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Sanitary trim boards, neatly sealed
130,000 views · TikTok · 544,000 views · Instagram
A real bathroom job — the result shows why clean sealant lines matter.
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No skirting board, still a clean finish
64.000 views · TikTok · 190.000 views · Instagram
Floor neatly sealed along frames — a small detail with a big visual impact.
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Recognise this at your place? Send photos via WhatsApp and we'll put together a quote for you.