Frequently asked questions

Let new sanitary sealant cure for at least 24 hours before exposing it to water. The surface may feel dry sooner while the sealant is still curing inside. Always follow the specific instructions you receive after the job.

Rates per metre or hour vary widely depending on joint width, substrate, accessibility, preparation and removal of old sealant. De Kitbaas therefore works with a fixed project price after reviewing photos. That way you know upfront what's included in the agreed scope of work.

New silicone sealant generally does not bond reliably to cured silicone sealant. Old residue must be carefully removed and the substrate cleaned and degreased before new sealant is applied.

Mould and discolouration can be linked to moisture, ventilation, soap residue, maintenance, age and material choice. Mould-resistant sealant can slow mould growth, but cannot prevent it under all conditions.

Whether damage is covered depends on your policy, the cause and the circumstances. Wear and tear or deferred maintenance may be treated differently from sudden damage. Contact your insurer for coverage.

We match the colour as carefully as possible to tile, grout and surroundings. Light, gloss and material differences can mean a colour does not look exactly the same everywhere.

That can be done with suitable tools, but delicate tiles, coatings, shower trays and frames can be damaged. Work carefully or have removal carried out if you are unsure about the substrate.

Yes, when the drain, substrate and joint are suitable. A moving or structurally incorrect drain cannot be repaired with sealant alone.

New-build materials can shrink, expand or settle. Elastic sealant can absorb limited movement, but when movement exceeds what the joint can handle, cracking can occur.

Silicone sealant is widely used for sanitary and moisture-exposed joints. Acrylic sealant is generally paintable and intended for suitable, less moisture-exposed joints. The right choice depends on application and substrate.

Watch for loose sealant, black staining in corners, damp patches on adjacent walls, or a musty smell. If you suspect a leak, it’s best to act quickly.

Yes. For marble and natural stone we use stone-safe premium A-brand sealant to help prevent edge staining.

Yes—black sealant looks great, but it’s unforgiving: every imperfection shows. We specialise in tight, clean black lines for a modern look.

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.

We choose a flexible sealant and colour that suits the floor, skirting and joint. Not every wood or floor construction suits the same sealant type.

We respond to your photos as quickly as possible. The installation date depends on location, scope and availability.

Transparent sealant can suit joints between different colours, but can also make the substrate and dirt more visible. The best choice depends on the joint.

For some baths, loading the bath during sealing can be sensible when it moves noticeably. This depends on bath type, support and installation. We assess this per situation.

Yes, we seal joints around windows and frames on the outside when substrate, accessibility and weather conditions are suitable. This can limit draughts or ingress through open joints, but is not a general guarantee of a moisture-free or energy-efficient home.

For composite we choose sealant suited to the worktop, joint and normal kitchen maintenance. We also assess colour and substrate in advance.

A general handyman can carry out sealant work, but a specialist sealant company focuses daily on preparation, material choice, joint profile, colour and finish. That difference often shows in the result.

Lifting can be caused by insufficient cleaning, movement of the shower tray, an unsuitable substrate, wrong material choice or a combination of these. We therefore assess not only the sealant but also the visible joint.

Usually acrylic sealant or a hybrid polymer. It’s used for skirting boards or frames you want to paint. Sanitary silicone is not paintable.

Yes. We seal countertop/backsplash joints so grease and moisture can’t creep behind cabinets.

Because premium A-brand sealant is pro-grade: stronger adhesion, cleaner finish, better durability and less discoloration compared to many budget options.