Internal Window & Door Sealing in Berkshire
Old, cracked sealant replaced around window and door frames, window boards and architraves inside your home or business, to help stop draughts and leave a neat finish.
High Quality Materials
Expert Workmanship
Reliable & Trusted
On Time Every Time
A Neat Finish Around Every Frame
Inside, the sealant around a window or door closes the gap between the frame and the plaster or reveal, and runs along the window board and around the architrave. It gives the opening a clean, finished look and helps stop draughts getting in around the frame.
In time that sealant hardens, shrinks, cracks and comes away as frames and timber move. We cut it out, prepare the joint and reseal with the right sealant for the frame and the finish, for homes and businesses in Reading, Slough, Bracknell, Wokingham, Maidenhead, Newbury, Windsor and Ascot, and across Berkshire.
- uPVC, timber and aluminium frames
- Frame to plaster and reveal joints
- Window boards and internal sills
- Door frames and architraves
- Patio, bifold and French doors
Frames We Seal
We seal the joints you see from inside the room. Whatever the frame is made of, the sealant has to bond to it and to the wall, sit neatly against the finish and move as the frame expands and contracts.
Windows and doors
- uPVC windows
- Timber windows
- Aluminium windows
- Sash windows
- Bay windows
- Internal doors
- Patio doors
- Bifold doors
- French doors
- Conservatories
Around windows
Between the frame and the plaster or reveal
Along window boards and internal sills
Frame corners and window board ends
Bay windows and conservatory joints
Around doors
Door frames and architraves
Between the frame and the plaster
Patio, bifold and French door frames
Where the frame meets the floor
Why Frame Sealant Fails
Frames expand and contract as the temperature changes, and timber frames, window boards and architraves shrink and swell through the year. Over time the sealant around them can harden, shrink, crack and pull away from the frame or the wall.
Once there is a gap, draughts find their way in around the frame, dust and dirt collect in the joint, and the finish around the window or door starts to look tired. You might feel cold air around the edges of the frame, or see the sealant cracking along the window board.
The right sealant for the joint
Where the joint will be painted, such as along a timber architrave or a painted window board, we use a paintable decorators' sealant, as standard silicone cannot be painted. Where it will not be painted, such as against a uPVC or aluminium frame or a tiled reveal, we use a flexible silicone or mastic in a colour to suit.
Resealed, not covered up
We cut out the old sealant, clean and prepare the joint, and fit a backing rod where the gap is deep, before applying the new sealant and tooling it to a neat, even line. Planning to decorate? Paintable sealant goes on before the paint, so let us know and we'll seal the frames first.
Sealant is not the answer to every draught. If cold air is coming through worn seals on the opening parts of a window or door, new sealant around the frame will not fix it, and we'll tell you what we find.
For skirting, coving and other decorating joints, see interior sealing.
Resealing a Window or Door
The same four stages for every frame, from a single door to a whole house of windows.
- 1
Inspect the frame
We check the old sealant, the frame and the plaster and window board around it.
- 2
Cut out the old sealant
Old sealant is removed and the joint cleaned back to sound surfaces.
- 3
Prepare the joint
Surfaces are cleaned and dried, with a backing rod fitted where the gap is deep.
- 4
Seal and finish
The right sealant for the joint is applied and tooled to a neat, even line.
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.
Frequently Asked Questions
Answers to common questions about silicone and mastic sealing.
Related Services
Interior Sealing
Skirting boards, worktops, tiled edges, window boards, door frames and decorating joints sealed neatly inside homes and businesses across Berkshire.
Silicone Sealing & Mastic Application
Old sealant removed, joints prepared and new silicone or mastic applied neatly inside homes and businesses across Berkshire.
Bathroom & Kitchen Resealing
Mouldy, cracked or peeling sealant replaced around baths, showers, basins, sinks and worktops, with sanitary silicone and a neat finish.
Get a Window & Door Sealing Quote
Tell us how many windows and doors need doing, add a few photos, and we'll get back to you with a clear price.