top of page


Instaseal provide sealant services around the North East of England

Sealant experts working in Newcastle, offering services to the housing and commercial sectors.

We have the largest mastic work force in the North East with over 20 years of experience in the industry.

.    .    .

We offer outstanding service levels for mastic and sealant solutions across the Newcastle region. Our team of seasoned professionals are able to provide high quality sealant and mastic installations to small and large projects.


Instaseal is based nearby Newcastle and our response rates are outstanding within the industry.

We are working with many building projects both commercial and industrial within Newcastle region. Our team are experts in delivering housing projects within the region and our core business remains within this sector. However, we have the capacity to work outside this arena and do often find bespoke projects in other fields within the Newcastle region.

bottom of page