East Sussex · England
Furner's Green Window Mastic
We cover Furner's Green for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Gaps left after new windows were fitted
- Mastic that has split away from the wall
- White mastic on grey or black frames
How we handle window mastic in Furner's Green
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We work on timber windows & doors, aluminium frames and composite doors, and common reasons people get in touch are rushed sealant from a window installation and gaps between the frame and the inside reveal.
Around Furner'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.
All our work comes with a 12-month guarantee, wherever you are in East Sussex.
- Place
- Furner's Green (TN22)
- Region
- East Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Resealing frames is a short job: it takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. In a small place like Furner's Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first.
What you get with us
- A 12-month guarantee on all work
- Fully insured
- ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
Read our cost guide and what customers say.
Furner's Green homes and the weather
Historic houses like Priest House (about 5 miles north-west) are a reminder that the area around Furner's Green has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near The Parish Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Haywards Heath station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Danehill Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Furner's Green is about 5 miles east of Haywards Heath, in East Sussex. Anywhere in TN22, we can carry out window mastic at your property. Our area takes in 289 places across East Sussex, from the larger towns to small villages. Our Crawley page covers work nearby, about 11 miles away.
Work in TN22 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Tanyard Lane and Slider's Lane or a nearby road, we can help. Neighbouring places we cover for window mastic include Danehill (1 mile north), Chelwood Common (2 miles north), Horsted Keynes (2 miles north-west), Chelwood Gate (2 miles north) and Nutley (2 miles north-east). Further out, we also cover Lewes (10 miles south), Hailsham (15 miles south-east), Crowborough (7 miles east), Uckfield (5 miles south-east), Newhaven (15 miles south) and Peacehaven (15 miles south).
What’s near Furner's Green
Typical jobs here are in homes near Sheffield Park Garden, among other places. For rail, the closest station is Haywards Heath station, about 5 miles west. Other landmarks nearby include Princess Royal Hospital (4.6 miles west) and Waterbury Castle (2.5 miles north-west). Not far away are Brickfield Meadow.
What affects the cost of window mastic
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Whether there’s mould to deal with
- When we can work, for business premises
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The type of property
- If someone has resealed it before
- Where the job is, and your postcode
- What’s wrong with the joints now
If you are in Furner's Green and need window mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Places near Furner's Green
Other services in Furner's Green
What we do, step by step
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work starts. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere like Furner's Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Get a quote
To get a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Read more
FAQs for Furner's Green
I let a flat near Haywards Heath station. Can you help?
Yes, we work for landlords and letting agents. 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 we start.
Can you do window mastic in Furner's Green?
Yes, Furner's Green is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
How much does window mastic cost in Furner's Green?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
Can you match the sealant to my frames?
Yes, in most cases. Mention the frame colour when you ask for a quote and we’ll match it as closely as we can.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.
How long will my window job take?
That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.
What we cannot put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before you book.
Joints and surfaces we work on
- uPVC windows
- Composite doors
- Timber windows & doors
- Window sills
- Aluminium frames
- Patio & French doors
Surface by surface
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Keeping the joints in good condition
Aftercare is simple:
- Keep paint and stain on wooden frames in good order
- Keep drainage slots and sill grooves clear
- Look round the frames every year or so
- Air rooms to keep condensation down around windows
A yearly look round the frames is enough. Small splits are simple to catch before they leak.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.