High-Performance Silicone Sealant Application

Established over 20 years ago, we at Britannia Sealants provide a fully comprehensive and professional range of commercial silicone sealant and mastic services. We are an award-winning company and are committed to delivering an outstanding consultancy service as well as superior standards of workmanship in all of our solutions, from swimming pool and façade sealants to jointing and fireproofing. So, if you’re looking for silicone sealants online or have been searching for silicone sealant tools, then get in touch with us today as we have the solutions for you.

What do silicone sealants do?

Silicone sealants are used widely within the building and construction industries for three main functions

1. To fill a gap between two or more substrates.

2. To form a barrier when combined with the substrate.

3. To maintain adhesion and sealing properties for the expected lifetime.

Britannia Sealants FaQ

Is there a warranty with silicone?

We will provide a workmanship and material warranty for 3 years.

Does silicone come in different colours?

We can supply silicone in almost any colour, provide us with a RAL number and we will match it!

How long will silicone last?

If applied correctly silicone will last up to 10years, all our silicone products contain anti fungicide to help prevent staining and mould.

What is silicone sealant?

Silicone sealants are adhesives used to create water- and airtight seals at the joint between two surfaces. Our silicone sealants are made from high-quality silicone and tough epoxy and are designed for use between ceramics, tiles, concrete, glass, metals, and other typical building substrates. We have applied silicone sealant to some of the most popular buildings in the UK including leisure centre swimming pools, high-rise apartments in London and most notably, the Foreign Office in Westminster.

How does silicone sealant work?

When first applied, silicone sealants are liquid and gel-like in consistency. Within 24 hours this will then cure to become robust and rubber-like to become a durable yet flexible silicone rubber. There is a wide range of silicone sealant colours available too so it can blend in with existing fixtures and fittings.

What are the benefits of silicone sealant?

As leading suppliers and appliers of silicone sealant, we have seen our customers enjoy the benefits of silicone sealant time and time again. Here are some of the advantages of silicone sealant…

UV resistant & waterproof

Silicone sealants are waterproof as well as resistant to heat and UV rays, which means that
they will perform reliably for a long time in many types of weather conditions.

Adhesion to a variety of surfaces

Silicone sealants are designed for use between ceramics, tiles, concrete, glass, metals, and other typical building substrates.


Silicone sealants are highly flexible without compromising their levels of performance. This means that they can still perform when put under pressure from the elements and more.

Extreme temperature resistance

Silicone sealants are resistant to extreme temperatures which means that, as well as under the sun, they can also provide additional protection in the event of a fire.

Which company is best for silicone sealant?

If you’ve been wondering which company is best for applying silicone sealant, here’s why you should choose us at Britannia Sealants…

Over 25 Years of Experience

We are family-run and have 25+ years of experience in offering a highly personalised yet professional service.

Award-Winning Company

We have won many awards including NHBC recognition awards and subcontractor of the year.

100% Health & Safety

We take huge pride in the fact that our company has a 100% health and safety record for your complete reassurance.

Fully Qualified

Our team are CSCS card holders and trained to NVQ Level 2 alongside our fully qualified site supervisors.

Range of Services

We offer all aspects of commercial sealant and mastic services, as well as many more solutions.

10-Year Guarantee

We provide a 10-year guarantee on all of our workmanship, materials and services.

Where can silicone sealants be applied?

Silicone sealants are widely used in wet and dry areas as silicone sealants are waterproof too. This kind of sealant can be used in a variety of areas and ways including:

Swimming pools (e.g., swimming pool inlets and around pool lights).

Around windows and doors.

Sealing around sinks, kitchens, toilets, bathtubs and showers.


All types of flooring.

And many more!

    Get In Touch With Us Today!

    If you’re looking for a company that can provide you with flexible, reliable and robust silicone sealing services, you’ve come to the right place. We at Britannia Sealants have the know-how and expertise to take on the simplest of projects to the most challenging. Get in touch with us today for our silicone sealant services or any of our other solutions including: