Mastic Man Medway
Cracked, mouldy or untidy silicone can make an otherwise well-finished window, door, kitchen or bathroom look tired – and in the wrong place, failed sealant can also allow water or draughts where they shouldn't be.
I'm Tim from TS Glazing. Alongside our glazing work, we provide professional mastic and silicone sealing throughout Medway, including windows, doors, kitchens, bathrooms and external sealing.
It's A Small Detail That Makes A Big Difference To The Finish
Good mastic work shouldn't be the first thing you notice. It should leave a neat, clean line that finishes the job properly and seals the joint it's there to protect.
Unfortunately, old silicone doesn't last forever. It can begin to discolour, crack, shrink, separate from the surface or develop mould – particularly in areas exposed to water and moisture.
Poorly applied silicone can also leave uneven lines, gaps and a finish that lets down an otherwise good installation.
Because my background is in double glazing installation and window and door repairs, sealing around frames is something I've worked with for many years.

Mastic & Sealant Services For Your Home
Silicone and mastic are used throughout a property. We can replace old sealant or provide neat finishing to newly installed areas inside and outside your home.
Window Frame Sealing
Neat internal and external sealing around window frames and surrounding finishes.
- uPVC window frames
- Replacement windows
- Perimeter sealing
- Old silicone replacement
Door Frame Sealing
Mastic and silicone finishing around external doors, patio doors and other glazed door systems.
- Front doors
- French doors
- Bifold doors
- Patio doors
Kitchen Worktops
Clean silicone joints around worktops and other kitchen areas where a neat water-resistant finish is required.
- Worktop edges
- Countertop joints
- Wall junctions
- Splashback edges
Kitchen Sink Sealing
Replacement of deteriorated or untidy silicone around kitchen sinks and adjoining work surfaces.
- Sink edges
- Worktop joins
- Old silicone removal
- Clean resealing
Bathroom Sealing
Removal and replacement of bathroom silicone around areas regularly exposed to water and moisture.
- Baths
- Basins
- Toilet bases
- Bathroom edges
Shower Sealing
Fresh silicone around shower areas where existing sealant has become mouldy, cracked or detached.
- Shower trays
- Shower screens
- Wall junctions
- Old sealant replacement
External Mastic Around Window & Door Frames
Exterior sealing is more than cosmetic. The perimeter joint between a window or door frame and the surrounding building needs to be appropriately finished and sealed.
Over time, old external sealant can crack, separate or deteriorate. If that happens, the affected area should be checked rather than simply covering old silicone with another layer.
My experience fitting and repairing windows and doors means I understand how these frames are installed and where sealing forms part of the finished installation.
If the reason you're looking at the sealant is because you're experiencing a draught, also see our guide to cold spots around windows and doors in Medway.

Does Your Old Silicone Need Attention?
Silicone doesn't have to be completely missing before it starts looking tired or failing to do the job it was applied for.
Cracking
Old sealant has begun splitting or cracking along the joint.
Pulling Away
Silicone has separated from one of the surfaces, leaving visible gaps.
Mould & Discolouration
Bathroom or kitchen silicone has become heavily stained, dark or mouldy.
Shrinking
Old sealant has contracted and no longer fills the joint as it once did.
Untidy DIY Silicone
Thick, uneven or badly finished silicone is spoiling the appearance of the surrounding area.
Visible Gaps
Sections of the joint have little or no effective sealant remaining.
Clean Silicone Finishing Around Kitchens & Worktops
Kitchens contain plenty of joints where worktops, sinks, splashbacks and walls meet.
These areas need a neat finish, particularly where water is regularly used.
If the existing silicone has become stained, cracked, loose or untidy, we can remove deteriorated sealant, prepare the area and apply a fresh finish where appropriate.
This can make a surprisingly big visual difference to an older kitchen without replacing the worktops or sink.
Areas We Can Seal Include:
- Kitchen worktops
- Sink edges
- Splashback edges
- Worktop-to-wall joints
- Countertop joints
- Other suitable kitchen junctions
We Can Reseal Around:
- Bath edges
- Shower trays
- Shower screens
- Wash basins
- Toilet bases
- Suitable wall and sanitary joints
Replace Old, Mouldy Or Cracked Bathroom Silicone
Bathrooms are particularly hard on silicone because sealant is regularly exposed to moisture, cleaning products and changes in temperature.
Over time it can discolour, become mouldy, split or pull away from the surface.
Simply applying fresh silicone over deteriorated material isn't the finish we're aiming for. Where resealing is required, proper preparation of the joint is an important part of the job.
Fresh silicone can give baths, showers and basins a much cleaner appearance while restoring the seal around the affected joint.
Cracked, Mouldy Or Untidy Silicone?
Send Tim and Sam details of the area you need sealing. Whether it's windows, doors, a kitchen, bathroom or exterior frame, we'll let you know how we can help.
From Old Sealant To A Clean New Finish
Good silicone work isn't simply about squeezing a new bead over what's already there. Preparation is an important part of achieving a neat result.
Show Us The Job
Contact Sam with details of what needs sealing. Photos can be useful for understanding the area.
Assess The Area
We establish the type of joint, existing condition and what preparation is required.
Prepare & Reseal
Where appropriate, failed old material is removed and the area prepared for the new sealant.
Clean Finish
New mastic or silicone is applied and finished to leave the joint neat and properly sealed.
Why Does Professional Silicone Application Matter?
Silicone looks straightforward until you're trying to achieve a consistent line around a long window frame, worktop, shower tray or door.
Preparation, the condition of the surfaces, the type of joint and the way the material is applied all affect the finished result.
Poor application can leave thick lines, gaps, smears and areas that begin failing prematurely.
We aim for something much simpler: a clean, neat finish that does the job it is there to do.
More Than A General Handyman Service
One advantage of using TS Glazing for window and door sealing is that these aren't unfamiliar products to us.
Tim has more than 25 years' experience in the glazing trade, including installation, repairs, frame adjustment and finishing.
If a problem around a window isn't actually caused by the mastic, we can look at the wider installation rather than simply covering the area with new silicone.
For example, a draught may instead involve failed window gaskets, alignment or insulation around the frame.
Need More Than New Mastic?
If the issue turns out to involve the window or door itself, TS Glazing also provides installation and repair services throughout Medway.
Double Glazing Repairs
Repairs for windows and doors including glass, handles, locks, seals and other common faults.
Double Glazing Repairs →Cold Spots & Draughts
Investigation of cold areas around window and door frames, including hidden insulation issues.
Cold Spot Repairs →Failed Seals & Gaskets
Repairs for deteriorated or damaged rubber seals around windows and doors.
Seal & Gasket Repairs →Double Glazing
New replacement windows professionally supplied and installed throughout Medway.
Double Glazing →Composite Doors
Composite front doors supplied and professionally installed by TS Glazing.
Composite Doors →Bifold Doors
Bifold door supply, installation and related repair services throughout Medway.
Bifold Doors →Mastic & Sealant Services Across Medway
TS Glazing provides domestic mastic and silicone sealing throughout the Medway towns and surrounding local areas.
Whether you need old silicone replacing around a bath in Rainham, a kitchen worktop resealed in Chatham or external mastic around windows in Gillingham, contact us and tell us what you need doing.
We cover Gillingham, Rainham, Chatham, Rochester and Strood, together with Hempstead, Wigmore, Lordswood, Walderslade, Upchurch and surrounding areas.
Local Mastic Services From Tim & Sam
Glazing Experience
More than 25 years' experience working with windows, doors and glazing installations.
Family-Run
You'll deal directly with Tim and Sam rather than a large national call centre.
Careful Preparation
The condition of the existing joint is considered before fresh sealant is applied.
Inside & Outside
Mastic services for suitable internal and external areas around your property.
Customer Reviews
Read independent feedback from customers through Google and Checkatrade.
Local To Medway
Based locally and working throughout the Medway towns and surrounding areas.
Need A Mastic Man In Medway?
From window and door frames to kitchens, sinks, baths and showers, contact Tim and Sam at TS Glazing for a free quote for your mastic and silicone sealing work.
Frequently Asked Questions
What does a mastic man do?
A mastic or sealant service involves applying and replacing suitable sealant around joints and edges where a clean, sealed finish is required. This can include windows, doors, kitchens, bathrooms, sinks, baths, showers and other suitable areas.
Do you remove the old silicone first?
Where failed existing silicone needs replacing, the condition of the old material and joint is assessed and appropriate preparation is carried out before fresh sealant is applied. We don't simply aim to hide failed silicone beneath another untidy layer.
Can you reseal around windows?
Yes. Window sealing is particularly relevant to TS Glazing because windows and doors are our main trade. We can assess old perimeter sealant and advise what work is appropriate.
Can you reseal around doors?
Yes. We can provide suitable sealing around door frames including entrance doors, French doors, patio doors and bifold door installations.
Do you replace mouldy silicone around baths and showers?
Yes. Bathroom mastic work can include baths, shower trays, shower screens, basins and other suitable sanitary joints where old silicone needs replacing.
Can you seal kitchen worktops and sinks?
Yes. We provide silicone finishing around kitchen worktops, sink edges, splashback junctions and other suitable kitchen joints.
Can cracked mastic around a window cause a draught?
Deteriorated perimeter sealing can be one possible route for unwanted air movement, but draughts can have several causes. They can also relate to gaskets, alignment, closing hardware or insulation around the frame. We recommend identifying the cause rather than assuming fresh mastic alone will solve it.
Do you carry out external mastic work?
Yes. Our service includes suitable exterior sealing, particularly around window and door frames.
Which areas do you cover?
We provide mastic services across Medway including Gillingham, Rainham, Chatham, Rochester, Strood, Hempstead, Wigmore, Lordswood, Walderslade, Upchurch and surrounding areas.
How do I get a quote for mastic work?
Contact Tim and Sam through the TS Glazing contact page or call 01634 553006. Tell us what needs resealing and where it is. Photos can also be useful for showing us the existing condition and size of the job.