JH Sealants is a professional mastic and sealant specialist based in Dover, Kent, providing expert internal, external and refurbishment sealant application for domestic, commercial and contract clients across Kent, London and the South East.

From bathroom and wet room sealing to kitchens, windows, expansion joints and cut out and reseal works, we deliver a clean, durable, watertight finish on every job. Alongside Dover we regularly work throughout Folkestone, Deal, Canterbury, Ashford, Ramsgate and Margate, as well as the wider county.

With over 17 years’ trade experience, £5 million public liability insurance and a 5-star rating from Google reviews, you can trust your project is in safe hands. No job too big or small.