East Sussex · England
Oxley's Green Window Mastic
Professional window mastic in and around Oxley's Green, with old sealant always removed completely and a 12-month guarantee.
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
- Black, perished sealant on frames
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes most of a day for a typical house, less for a few frames, including the tidy-up. Somewhere like Oxley's Green 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 look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details.
Read more
Window mastic for homes and businesses in Oxley's Green
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. 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, composite doors and window sills.
Around Oxley's Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Oxley's Green (TN32)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Oxley's Green
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
The most common problems we see are:
- Sealant in the wrong colour for the frame
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
- Cracked sealant at the sill ends
If you live in an older home near The Parish Church of St Thomas A Becket, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Whether you can choose the colour
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
- What product goes in the joint
Oxley's Green: your questions answered
Is Oxley's Green in your area for window mastic?
Yes. We work across London and the South East, and Oxley's Green is part of that. You can call 0345 464 0079 or email us and let us know what needs doing.
I let a flat near Robertsbridge station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Are you fully insured?
Yes. We are fully insured for domestic and commercial work.
Can you quote for more than one area?
Of course. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Is the new sealant paintable?
It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Tell us if you’re decorating and we will choose accordingly.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we will confirm what’s needed.
Can you seal the gap between the frame and the plaster indoors?
Yes. Inside, the joint between frame and plaster is sealed neatly.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
What affects the quote in Oxley's Green
Jobs vary more than people expect. The main factors:
- Access and height
- The type of sealant required
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Asking for a quote
When you call or email, these details help:
- Whether it’s a home or a business
- Where the job is, and your postcode
- The problem you’ve noticed
- Photos by email, if that’s easy
Want a quote for window mastic? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear price before we start.
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Air rooms to keep condensation down around windows
- Don’t paint over the silicone
- Avoid blasting the frames with a pressure washer
- Avoid harsh chemicals near the mastic
Keep the new mastic undisturbed while it cures, for as long as we advise. Do not point a pressure washer at the joints.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Honest limits
New sealant cannot fix everything, and we’ll tell you before work begins. Sealant will not put right:
- Penetrating damp from a failed cavity tray or render
- Condensation trapped between the panes
- Rotten timber, which needs a joiner first
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Composite doors
- uPVC windows
- Window sills
- Patio & French doors
- Timber windows & doors
- Aluminium frames
Oxley's Green homes and the weather
Historic houses like Bateman's (about 1.9 miles north-west) are a reminder that the area around Oxley's Green has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Robertsbridge station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Oxley's Green is about 9 miles north of Bexhill-on-Sea, in East Sussex. Oxley's Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 289 places in East Sussex are on our list. For nearby work, see our Brighton page (25 miles or so).
All of TN32 is covered for window mastic, from the main roads to the quietest streets. Neighbouring places we cover for window mastic include Hollingrove (1 mile south), Brightling (1 mile south-west), Twelve Oaks (1 mile south), Netherfield (2 miles south-east) and Robertsbridge (3 miles north-east). Within a short drive, we also cover Eastbourne (14 miles south-west), Hastings (10 miles south-east), Bexhill-on-Sea (9 miles south), Hailsham (10 miles south-west), Crowborough (12 miles north-west) and St Leonards (10 miles south-east).
Around Oxley's Green
The closest station to Oxley's Green is Robertsbridge station, roughly 2.8 miles north-east. Other landmarks nearby include Ticehurst House Hospital (5.6 miles north) and Old Castle (2.8 miles south-west).
Landlord and commercial work in Oxley's Green
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured for the work.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
What the job involves on each surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.