X Sealants Ltd

We are a family run mastic sealant application company based in Essex. Providing professional sealant application services throughout the UK. If you need an expert in mastic application we have over 15 years experience in the mastic, sealant application industry. We have carried out all types of sealant application, please have a look at our completed project pages.

At X Sealants Ltd we pride ourselves on our can do attitude and our reputation for putting QUALITY BEFORE QUANTITY


  • Kitchens cut out and reseal or new
  • Bathrooms  cut out and reseal or new
  • Flooring 
  • Windows inside and out
  • Air test mastic
  • Expansion joints
  • Windows cut out and reseal or new 


  • Self build
  • New homes
  • Developments small/medium/large
  • Internal and external
  • Air test works
  • Windows
  • Expansion joints
  • Soffits


  • Internal/external
  • Shops
  • Restaurants
  • Supermarkets 
  • Offices
  • Fire mastic
  • Glazing/structural sealant
  • Fast food chains
  • Warehouses  


  • Two part sealants
  • Swimming pools
  • Prisons
  • Anti pick
  • Road and slab jointing
  • Hospital theatres
  • Clean rooms
  • Bomb proof structural sealing