Kent · England
Baker's Cross Window Mastic
Specialist window mastic for Baker's Cross: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Water coming in at the bottom corners of a door
- Sealant in the wrong colour for the frame
- Mastic that’s falling out in pieces
How we handle window mastic in Baker's Cross
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. Common call-outs are for cracked or shrunken mastic around the frame and water coming in at the bottom corners of a door, on aluminium frames, timber windows & doors and composite doors.
Homes in small places like Baker's Cross often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Location
- Baker's Cross (TN17, TN18)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Damp problems in the wall away from the window
- Rotten timber, which needs a joiner first
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
- Composite doors
- Aluminium frames
Places near Baker's Cross
Other services in Baker's Cross
What affects the cost of window mastic
There’s no set price list, because jobs vary so much. What we look at:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- Whether the work is at height
- How many rooms, windows or areas are involved
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
What we need to know
When you call or email, these details help:
- How we’d reach the joints
- Pictures of the joints, sent by email
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
For window mastic in Baker's Cross, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Do you need window mastic in Baker's Cross?
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
People usually contact us after spotting something like this:
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
- Whistling draughts around closed windows
- Water coming in at the bottom corners of a door
For an older house near a landmark such as Church of St Dunstan, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- How the joint is cleaned and prepared
- Are they insured?
- What product goes in the joint
- Is the old sealant removed completely?
How it works
On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work usually takes most of a day for a typical house, less for a few frames. Somewhere like Baker's Cross needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
- Tell us about any water getting in
Get a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
Window mastic in Baker's Cross: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Cranbrook School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Baker's Cross is about 9 miles south-east of Paddock Wood, in Kent. Wherever you are in the TN17 postcode area, our applicators can take on window mastic. Baker's Cross is one of 922 towns and villages in Kent where we work. Our Crawley page covers work nearby (32 miles or so).
Every address in TN17 and TN18 is covered for window mastic, from the main roads to the quietest streets. Whether your property is on Dorothy Avenue, Brickenden Road and Doctor Hope's Road or anywhere close by, our applicators can take on the job. We also cover the places around Baker's Cross: Cranbrook (1 mile west), Coursehorn (1 mile east), Swattenden (1 mile south-west), Hartley (2 miles south-west) and Benenden (2 miles south-east). Further out, we also cover Maidstone (12 miles north), Ashford (14 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (14 miles north-west), Kings Hill (14 miles north-west) and Foley Park (13 miles north).
Landmarks near Baker's Cross
Typical jobs here are in homes near White Horse pub, Crane Valley and Cranbrook Church of England Primary School, among other places. Well-known places in the area include Sissinghurst Castle (2.3 miles north-east) and Sissinghurst Castle (2.3 miles north-east).
Leave it or put it right?
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. Older cottages and farmhouses around Baker's Cross can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What you get with us
- Trusted Arbo and Everbuild sealants
- Domestic, commercial and hotel work
- Rated 4.9 stars on Google
- Sealant colour chosen to suit
See our cost guide or customer reviews.
Surface by surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Your questions about window mastic in Baker's Cross
Will you come out to Baker's Cross?
Yes, Baker's Cross is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is window mastic in Baker's Cross guaranteed?
All our work, in Baker's Cross and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Do you have insurance?
Yes. We’re fully insured.
Do you work on first-floor windows?
Usually, yes. We plan safe access before the job, so mention the height and anything in the way.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Baker's Cross, along with the rest of our area.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.