The Mastic King delivers professional silicone and sealant work across Kent, London, and the South East.

Whether it’s refreshing tired sealant, finishing a brand-new installation, or completing detailed silicone work on kitchens, bathrooms, windows, and flooring, every job is carried out to a high professional standard.

Run by James Stevens

The Mastic King delivers professional silicone and sealant work across Kent, London, and the South East.

Whether it’s refreshing tired sealant, finishing a brand-new installation, or completing detailed silicone work on kitchens, bathrooms, windows, and flooring, every job is carried out to a high professional standard.

Run by James Stevens, The Mastic King focuses on quality finishes, reliable service, and attention to detail — providing clean results that are built to last.

We provide professional silicone and mastic application services including:

Bathroom silicone replacement

Kitchen worktop and splashback sealing

Internal and external window sealing

Floor and expansion joint sealing

Removal of failed, mouldy, or damaged sealant

New-build and renovation finishing work

Domestic and commercial projects

Every finish

We provide professional silicone and mastic application services including:

Bathroom silicone replacement

Kitchen worktop and splashback sealing

Internal and external window sealing

Floor and expansion joint sealing

Removal of failed, mouldy, or damaged sealant

New-build and renovation finishing work

Domestic and commercial projects

Every finish is completed using premium products and proven techniques to ensure durability, flexibility, and a clean professional appearance.

A Finish That Makes the Difference

Good sealant work is often the finishing touch that transforms a room. 

At The Mastic King, we understand how important neat lines, smooth finishes, and long-lasting protection are to the overall standard of your home or project.

We take pride in:

Clean and accurate workmanship

Reliable and professional servi

A Finish That Makes the Difference

Good sealant work is often the finishing touch that transforms a room. 

At The Mastic King, we understand how important neat lines, smooth finishes, and long-lasting protection are to the overall standard of your home or project.

We take pride in:

Clean and accurate workmanship

Reliable and professional service

High attention to detail

Long-lasting mould-resistant finishes

Honest communication and customer care