We've updated our name! You may know us as SD Sealants, but we now go by SD Team.

We've updated our name! You may know us as SD Sealants, but we now go by SD Team.

United Kingdom

Specialist bathroom sealant services UK

Proven quality, built on experience

With more than 50 years of experience in specialist finishing and sealant works, SD Team delivers professional bathroom sealant application nationwide. Our trained mastic applicators support residential developments, hotels, healthcare settings and commercial properties, ensuring bathrooms are sealed correctly, safely and to a high visual standard.

We operate across the UK, including London and Manchester, providing consistent workmanship for both new build and refurbishment projects.

Professional bathroom mastic and silicone application

Bath and shower perimeter sealing

We apply high-performance sanitary silicone sealant around baths, shower trays, wet room junctions and wall interfaces to prevent water ingress and mould growth. Joints are prepared correctly and finished with clean, uniform lines suited to modern and high-end bathrooms.

Washbasins and sanitaryware

Our teams seal around sinks, vanity units, toilets and pedestals, ensuring watertight junctions between sanitaryware and tiled or panelled surfaces. Correct sealing helps maintain hygiene standards and protects finishes from moisture damage.

Wall and floor tile junctions

Bathroom sealant is applied at internal corners and floor-to-wall transitions where movement and moisture exposure are highest. Flexible sealant systems are selected to accommodate expansion while maintaining a durable bond.

Wet room and level-access detailing

For wet rooms and accessible bathrooms, precise sealant application is essential. We install flexible waterproof sealants at drainage interfaces, perimeter joints and threshold transitions to support long-term performance.

Refurbishment and resealing works

Where existing bathroom sealant has deteriorated, cracked, or discoloured, we remove failed material and apply new sanitary-grade silicone. This restores appearance and performance without the need for full bathroom replacement.

Bathroom sealant FAQs

Our bathroom sealant FAQs answer common questions from developers, contractors and property managers.

What type of sealant is used in bathrooms?

We use sanitary-grade silicone sealants designed for high-moisture environments. These products are typically mould-resistant, flexible and formulated to maintain adhesion between sanitaryware and tiled or panelled surfaces. Product choice depends on movement, exposure and specification requirements.

How long does bathroom sealant last?

The lifespan of bathroom sealant depends on usage, cleaning regimes, ventilation and movement within the building. Professionally installed sanitary silicone can provide long-lasting performance when correctly specified and maintained. Read our blog here for more on when is the right time to replace deteriorated sealant.

Can you reseal bathrooms in occupied properties?

Yes. We regularly carry out bathroom resealing works in occupied residential and commercial buildings. Failed sealant is carefully removed and replaced with minimal disruption, helping maintain hygiene and water resistance without taking the bathroom out of use for extended periods.

Do you work on large housing developments?

Yes. We deliver bathroom sealant packages for multi-plot residential schemes and large commercial projects nationwide. Our teams can scale labour to suit programme demands and maintain consistent finish standards across multiple units.

Where do you provide bathroom sealant services?

SD Team operates nationally across the UK, including London and Manchester. Our bathroom sealant specialists are available for projects of varying size, from single-site refurbishments to large multi-location developments.

Get in touch

If you require specialist bathroom sealant application as part of a new build, refurbishment, or maintenance programme, SD Team can help. Contact our team to discuss your project and arrange professional, high-quality bathroom sealing delivered nationwide.