A gloved hand running a dark bead of sealant from a caulking gun along the joint beneath a timber window sill.
Sealing Quality. Delivering Trust.

Silicone & Mastic Sealing Across Berkshire

Professional interior sealing for homes and businesses: baths, showers, kitchens, window and door frames, skirting and worktops, finished neatly and on time.

High Quality Materials

Expert Workmanship

Reliable & Trusted

On Time Every Time

Our Services

Professional Interior Sealing

Silicone sealing and mastic application inside commercial and residential properties across Berkshire.

A hand holding a cartridge of sealant beside the frame of a white glazed sliding door.

Silicone Sealing & Mastic Application

Old sealant removed, joints prepared and new silicone or mastic applied neatly inside homes and businesses across Berkshire.

A white bath set against grey square wall tiles, with a chrome grab rail, mixer tap and hand shower.

Bathroom & Kitchen Resealing

Mouldy, cracked or peeling sealant replaced around baths, showers, basins, sinks and worktops, with sanitary silicone and a neat finish.

Close-up of the corner of a white uPVC window frame meeting a tiled sill, with rain on the glass.

Window & Door Sealing

Window and door frames sealed on the inside to help stop draughts and give a neat finish, from window boards and architraves to patio doors and bifolds.

A stainless steel undermount sink set into a white quartz worktop with a chrome tap and white bevelled tile splashback.

Interior Sealing

Skirting boards, worktops, tiled edges, window boards, door frames and decorating joints sealed neatly inside homes and businesses across Berkshire.

A row of square white basins with wall-mounted taps beneath long mirrors in a public washroom with teal floor tiles and white cubicle doors.

Commercial & Residential Sealing

Interior silicone and mastic sealing for homeowners, landlords, letting agents, developers, property managers, offices, shops and commercial units.

About Berkshire Mastic Man

Clean, Neat Sealing for Homes and Businesses

Berkshire Mastic Man provides professional silicone sealing and mastic application for homes and businesses across Berkshire, from Reading, Slough and Bracknell to Newbury, Windsor and Ascot.

Sealant keeps water out of the joints around baths, showers, basins and worktops, closes the gaps around window and door frames, and gives skirting, trims and tiled edges a clean finish. Once it cracks, discolours, grows mould or comes away, it stops doing that job.

We cut out the old sealant, clean and prepare the joint, then apply the right sealant for the job with a neat, even finish.

  • High quality materials
  • Expert workmanship
  • Reliable & trusted
  • Clean, neat & professional finish
  • On time every time
A gloved hand drawing a blade along an internal wall corner, lifting away a thin strip of old material.

Sealant Cracked, Mouldy or Coming Away?

New sealant should never go over old. We cut it out and replace it with a clean, neat seal.

Why Choose Berkshire Mastic Man

Sealing Quality. Delivering Trust.

Quality materials, expert workmanship and a clean, neat finish on every job.

  • High quality materials

    The right sealant for every job: mould-resistant sanitary silicone for bathrooms and kitchens, and flexible or paintable sealants for frames, window boards and skirting.

  • Expert workmanship

    Neat, even sealant lines that look right and do their job, whether it is one bath or a whole building.

  • Reliable & trusted

    Dependable from start to finish: we do what we say we will and treat your property with care.

  • Clean, neat & professional finish

    Old sealant fully removed, surfaces cleaned and prepared, and the area left tidy when we finish.

  • On time every time

    We turn up when we say we will and get the job done without fuss.

A tradesman in a checked shirt and work apron, seen from behind, fitting a tall window in a room under renovation.
How It Works

Simple From Start to Finish

From the first visit to the final clean-up, we keep the process simple with clear communication at every stage.

  1. 1

    Get in touch

    Call 07935 877028 or send the quote form. Photos of the job help.

  2. 2

    We take a look

    We check the joints and surfaces and recommend the right sealant.

  3. 3

    Clear quote

    You get a clear price and a date that suits you.

  4. 4

    Old sealant out, new in

    We remove the old sealant, clean and prepare the joint, then apply and tool the new sealant.

  5. 5

    Neat, tidy finish

    We check every line and leave the area clean.

Areas We Cover

Sealing Across Berkshire

We cover the whole county. Choose your town to find out more.

Thatcham
Sandhurst
Crowthorne
Twyford
Woodley
Earley
Theale
Hungerford
Eton
Datchet
Sealing FAQs

Frequently Asked Questions

Answers to common questions about silicone and mastic sealing.

Sealing Quality. Delivering Trust.

Need Something Sealed?

Tell us about the job and we will get back to you with a clear quote.