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Bathroom sealing for a fresh, neat finish

Sanitary sealant • Careful preparation • 2-year warranty

See our work in the bathroom

Real projects, filmed as we work. See how we prepare, match colours and finish the joints.

De Kitbaas at work · Amsterdam

From white to Manhattan Grey.
What a difference.

This customer had white sealant in a grey shower. When replacing the sealant, we also changed the colour to Manhattan Grey, to match the tiles.

The same shower, with joints that blend into the tiling. See the result in the video.

The job
Replacing shower sealant
The colour
Manhattan Grey
The place
Amsterdam

More bathroom work

  • Bathroom

    A neatly resealed bath

    Old sealant removed, the joint cleaned and finished with a fresh seal.

  • Bathroom

    A neat white line around the basin

    This basin in Diemen-Zuid finished with white sanitary sealant and attention to preparation and detail.

  • Bathroom

    A neat joint around the shower drain

    Careful sealing in an area exposed to water every day.

  • Bathroom

    Precision work in a tiled niche

    Many corners and uneven handmade tiles call for carefully applied sealant.

  • Bathroom

    Replacing mouldy shower sealant

    If mould is embedded in the sealant, we replace the affected joint. We also look at moisture, dirt and drainage. Cleaning, ventilation and keeping the joints dry still matter.

What we seal in the bathroom

We work neatly and leave the workspace tidy.

Loose or cracked sealant can let water behind a joint. Discolouration alone does not mean it leaks. We assess the joint, remove old sealant where needed and apply a neat new finish.

We finish the visible joints around showers, baths, basins, floors and sanitary fittings with suitable premium sanitary sealant. The waterproofing behind the tiles also needs to be sound.

Shower sealing

Neat joints around shower floors, walls, trays, profiles and drains. We follow the installation instructions and keep drainage openings clear. Not every gap should be sealed.

Bath sealing

A carefully applied joint along the bath helps keep water from getting behind the visible edge.

Sink & vanity

A neat, easy-to-clean joint between the basin, vanity and wall.

Toilet

No gaps where dirt settles. We finish the connection to wall or floor neatly.

Replace old sealant

When replacing sealant, we remove the old material carefully, clean the bonding surfaces with a suitable cleaner and prepare them for the new sealant.

Colour matching for your job

We bring different colours and choose a shade to suit the tiles, grout and fittings. An exact match is not always possible, but we look for the best combination.

Photos first, then a fixed project price

Send overview and close-up photos of the shower, bath, basin or other joints. We assess what is visible and confirm a fixed project price for the agreed work before starting.

  • The Shower Reset€270–€380
  • The Bathroom Upgrade€435–€610

Every shower and bathroom is different. That is why we always ask for photos. We use them to prepare your quote.

Clear & personal

No surprises. Clear agreements and direct contact via WhatsApp.

Photo check

No need to measure everything yourself. Overview and close-up photos help us assess the visible situation.

Eye for detail

We see sealant work as design. Clean lines that complete your bathroom.

Quality

A neatly shaped sanitary joint is easier to keep clean and dry. Suitable sealant, good preparation and maintenance go together.

2-year warranty

A warranty on the workmanship and adhesion of the sealant we apply.

Why material choice matters in the bathroom

We choose premium sanitary sealant to suit the surface, moisture, movement and finish. One product does not suit every joint.

Colour and appearance

We choose a suitable colour and finish. Sanitary sealant can still discolour through use and maintenance. Discolouration alone does not mean the joint leaks.

Mould-resistant

Mould-resistant does not mean mould-free. We use suitable sanitary sealant and shape the joint so water can run off. Rinse away soap, use a suitable mild cleaner, dry the edges and ventilate well.

Design choice

We match the colour and sheen to the tiles, grout and fittings as closely as possible.

Natural stone

For marble or hardstone, we choose sealant suited to that stone. Cleaners, primers and finishing agents must also be compatible. This helps reduce the risk of staining along the joint.

When should sealant be replaced?

Sealant needs maintenance. Have loose or cracked joints checked. Persistent stains or a sticky surface also deserve a closer look, but do not automatically mean the joint leaks.

  • Mould or discolouration: spots that remain after suitable mild cleaning are a reason to have the joint checked.
  • Separation: sealant pulls away from tile or bath.
  • Cracks: the joint is damaged. We look at movement, adhesion and how the joint was formed.
  • Changes to the sealant: persistent discolouration or a sticky surface. Check the cause before deciding what is needed.

How it works

  1. Take a photo: overview + close-up.
  2. Check your price: view our prices & packages or send photos via WhatsApp.
  3. Appointment is appointment. We schedule quickly and work neatly.
  4. Enjoy: neat sealant work with a 2-year warranty on workmanship and adhesion.

FAQ — bathroom sealing

What does bathroom sealing cost?
Start with the Prices & Packages. Then send overview and close-up photos. After assessing them, we confirm a fixed project price for the agreed work before starting.
I see black dots in my sealant. Do I need to replace it?
Not straight away. Black spots do not automatically mean the joint leaks. First clean it with a suitable mild cleaner. If the marks remain or mould is embedded in the sealant, we assess whether replacement is needed. Send photos if you are unsure.
Can I shower the same day?
We normally plan at least 24 hours without water exposure. Longer may be needed depending on the sealant, joint and conditions. A dry skin does not mean the joint is fully cured. We give you advice for your bathroom after the job.
Do you have matte colors?
We have different colours and matte shades. The right colour and sealant depend on the application and surface.
Do I get a warranty?
You get a 2-year warranty on the workmanship and adhesion of sealant applied by De Kitbaas. When you report an issue, we first assess the cause. If it falls under warranty, we repair the affected sealant work at no charge.
View our general FAQ →

Ready for a clean result?

Send clear overview and close-up photos and your location via WhatsApp. We assess the work and confirm a fixed project price for the agreed job before starting. You usually do not need to measure it yourself.