About London Sealant Services

About London Sealant Services

London Sealant Services was born from decades of family experience in the mastic joint sealant trade. Working on projects mainly, but not exclusively in and around London town, we believe every job, wether big or small, requires our utmost focus and care. We thrive on good workmanship and attention to detail and this consistent high standard ensures that our customer base not only grows steadily, but most importantly, we get valued repeat business from satisified clients. Read more below...

Who we are
Family-run mastic sealant application business, based in London, serving a realistic area in and around London, including, but not exclusively, the counties of Essex, Middlesex, Kent, Surrey and Herts. with an attention to detail and a firm focus on customer satisfaction.
How We Work
We believe in client communication from start to end, the initial contact is dealt with swiftly and in confidence, taking just the absolute neccessary details to give us an understanding of your requirements, we can then advise immediately how we should best proceed.
What We Use
Using our history and experience in the mastic sealant trade and our continuous close working relationship with our trusted suppliers, we have an excellent understanding of the very best, cutting edge products and always use only high quality materials in our work.

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What You Can Expect Of London Sealant Services

We all know there's cowboys, corner-cutting and shoddy workmanship in every trade, the mastic joint sealant business in no different and being of a completely different thinking, this is a fact that we use to our advantage.

Not only we do we work to way above the accepted standard,,, as standard,,, but we also believe that a standard reputation will not secure your future business and trust, and so, we can confidently state the points below........

Clear & Precise Planning

They say measure twice and cut once, well that resonates with us strongly and we spend the time that it SHOULD take to get the ground work done.

Attention To Detail

As stated thoughout this website, we pride ourselves on getting the finish that you really want and not just a 'make-do' job. This is very noticeable in our work.

Client Communication

A huge frustration with any kind of trade work is a lack of communication between the client and contractor. This isn't the case with us and never will be 24/7 365 x days.

Unsure Of Exactly The Best Way To Proceed With Your Project? We Can Help

Why Us For your Mastic Sealant Services?

What makes us a little different from other mastic sealant applicators in and around London?


We believe in going the extra mile when it comes to applying mastic joint sealants, this means complete customer satisfaction. With a close tie with our trusted suppliers, we have access to not only 'nearly match' but 'really match' the joints we're sealing! Working to the industry-standard RAL colour system, we will colour match your project substrates perfectly every time!

We don't believe in cutting corners or costs for that matter and so, use only the best quality mastic joint sealants in the business from market leading sealant manufacturers such as Otto Chemie, illbruck, Dow Corning, Geocel, Sika, Everbuild & CT1.

Perfect Sealant Colour Matching

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World-Class Sealant Materials

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In Need Of Reliable, Trustworthy, Experienced Mastic Sealant Applicators?

Our Philosophy


As a London-based contractor in the construction trade, London Sealant Services believe that many of our counterparts are after a quick buck, and this, like all trades, soon affects quality and aftercare giving a bad customer experience and from a company point of view, proves itself to have no longevity.

We see things differently, from the very first contact with our clients, we seek to establish a firm trust. Our work is of a very high quality consistently and continued communication thoughout the project, however big or small is assured. Any additional works, snagging or aftercare is addressed swiftly with minimum fuss to ensure that our clients are fully satisified to completion.

THIS is our philosophy for a long and mutually beneficial working relationship

Don't Just Take Our Word For It...

Our Mastic Sealant Clients

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