Three rolls of masking tape stacked on a wooden floor against a white skirting board and a plain grey wall.

Interior Sealing in Berkshire

Skirting boards, worktops, tiled edges, window boards, door frames and decorating joints sealed neatly, with the right product for every joint.

High Quality Materials

Expert Workmanship

Reliable & Trusted

On Time Every Time

Interior Sealing

Every Joint in the Room, Finished Neatly

Most properties have more sealed joints than people realise: the gaps between skirting boards and floors, worktops and walls, tiles and trims, and frames and plaster, plus the joints along coving and architraves that are sealed before a room is painted. Larger buildings also have movement joints in their tiled floors and walls.

We seal them all, choosing the right product for each joint, for homes and businesses in Bracknell, Wokingham, Ascot, Sandhurst, Crowthorne and across Berkshire. Whatever the room, you get the same clean, neat and professional finish.

  • Skirting boards and flooring edges
  • Worktops, upstands and tiled edges
  • Window boards, door frames and architraves
  • Coving and decorating joints
  • Movement joints in larger buildings
A stainless steel undermount sink set into a white quartz worktop with a chrome tap and white bevelled tile splashback.
Interior Sealing

Joints We Seal Indoors

From one room being redecorated to a whole building, every joint gets the right product and a neat, even line.

Around the home

  • Skirting boards

  • Window boards and frames

  • Door frames and architraves

  • Coving

  • Decorating joints before painting

Kitchens, bathrooms and floors

  • Kitchen worktops and upstands

  • Tiled edges, corners and trims

  • Flooring edges in kitchens and bathrooms

  • Utility rooms and cloakrooms

Commercial interiors

Larger buildings

  • Movement joints in tiled floors

  • Where tiled floors meet the walls

  • Washrooms and staff kitchens

  • Communal areas and corridors

Baths, showers, basins and sinks have a page of their own.

Bathroom & kitchen resealing
The Right Product

Different Joints Need Different Sealants

One sealant does not suit every joint. We choose the product for where it is going and what it has to do.

Colours are chosen to suit the surfaces, from white and clear to shades that blend with frames, tiles and worktops.

Call 07935 877028
Wet areas
Sanitary silicone with a fungicide, for baths, showers, basins, sinks and worktops.
Joints that will be painted
A paintable decorators' sealant for skirting, architraves, coving and trims, as standard silicone cannot be painted.
Window and door frames
A flexible sealant that bonds to the frame and the wall and moves as the frame does.
Movement joints in floors
A flexible sealant suited to the floor finish and the foot traffic it takes, so it can move with the joint.
Decorating Joints

Sealing Before You Decorate

A freshly painted room shows every gap. Where skirting boards meet the wall, along the edges of coving and around door frames, architraves and window boards, small gaps open up as timber shrinks and the building settles. Filled with a hard filler, they soon crack again.

A flexible, paintable decorators' sealant closes those gaps and moves with the joint, so the paint finishes against a clean, straight line. It goes on before the paint, so if you are planning to decorate, let us know and we'll seal first. We'll advise on the cure time for the product used, so you know when it is ready to paint.

A neat finish in every room

Indoors, sealing is about looks as much as keeping out water and draughts. A straight, even line along a skirting board, worktop or tiled edge finishes a room off, and we mask up where a crisp edge is needed.

Movement joints indoors

Larger tiled floors and walls, such as those in offices, shops and communal areas, are laid with movement joints: deliberate gaps that let the tiling expand, contract and move with the building without cracking. When the sealant in them fails, the joint collects dirt and water and looks untidy. We remove the old sealant, clean the joint, fit a new backing rod where needed so the sealant sits at the right depth, and apply a flexible sealant suited to the joint.

For frames, window boards and architraves, see window and door sealing.

Sealing Quality. Delivering Trust.

Why Choose Berkshire Mastic Man?

High quality materials, expert workmanship and a clean, neat and professional finish, on time every time.

  • 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.
Sealing FAQs

Frequently Asked Questions

Answers to common questions about silicone and mastic sealing.

You Might Also Need

Related Services

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 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.

Sealing Quality. Delivering Trust.

Get an Interior Sealing Quote

Tell us which rooms and joints need sealing, and we'll come back with a clear price and a date that suits you.