West Sussex · England
Window & door mastic in Poynings, West Sussex
Mastic around window and door frames, sills and patio doors for Poynings, backed by a one-year guarantee. Call for a quick quote.
- Gaps between the frame and the inside reveal
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
Windows and doors in Poynings
Historic houses like Portslade Manor (about 3.7 miles south) are a reminder that the area around Poynings has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to The Church of the Holy Trinity include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Poynings is about 4 miles north of Brighton and Hove, in West Sussex. Whether you are in the middle of Poynings or further out, window mastic is available for homes and businesses alike. 371 places in West Sussex are on our list, from the larger towns to small villages.
Postcode districts we cover here for window mastic: BN45. Window mastic is available to properties on The Street and Cora's Walk and the roads around them. Nearby, we also carry out window mastic in Fulking (1 mile south-west), Hangleton (3 miles south), Portslade (4 miles south), Castle Town (4 miles west) and Kingston by Sea (4 miles south). Further out, we also cover Crawley (15 miles north), Horsham (13 miles north-west), Worthing (10 miles south-west), Haywards Heath (9 miles north-east), Burgess Hill (5 miles north-east) and Littlehampton (15 miles south-west).
What’s near Poynings
Locally, jobs take us to homes and businesses close to Royal Oak pub, among other places. For rail, the closest station is Hassocks station, roughly 3.3 miles north-east of the centre. Other landmarks nearby include The Budding Foundation Museum of Gardening (2.9 miles north-east) and Southlands Hospital (4.4 miles south-west). For a walk, there’s Wolstonbury Hill and Woods Mill.
How we handle window mastic in Poynings
Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on timber windows & doors, window sills and uPVC windows, and people most often call us about leaking joints at the ends of sills and black, perished sealant on frames.
Somewhere as small as Poynings, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.
- Where
- Poynings (BN45)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy:
- Keep drainage slots and sill grooves clear
- Don’t use solvent cleaners on the joint
- Walk round the house once a year and look at the joints
- Keep paint off silicone joints
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Why deal with it now?
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. In a small place like Poynings, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Poynings customers choose us
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
- We are fully insured
- We never seal over old sealant
See our cost guide or our reviews.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a morning for a couple of windows and a door and we leave things clean and tidy. Somewhere like Poynings 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 confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Advice
What we’re called out for in Poynings
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
These are the problems we are asked about most:
- Untidy mastic left by window fitters
- Cracked internal joints between frame and plaster
- Gaps where the sill meets the wall
- Mastic that is falling out in pieces
Rented homes near Hassocks station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Before booking anyone
- Who does the work, and how experienced they are
- What the quote includes, VAT included or not
- What insurance they hold
- What happens if they find a problem under the old sealant
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A DIY attempt does not rule out a professional job. We cut it out and start again.
What the job involves on each surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Draughts through the window seals rather than the frame
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before booking.
What we seal
- Patio & French doors
- Timber windows & doors
- Composite doors
- uPVC windows
- Window sills
- Aluminium frames
Towns and villages near Poynings
Other services in Poynings
Your questions about window mastic in Poynings
I let a flat near Hassocks station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Is Poynings within the area you cover?
Yes, Poynings is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You’ll know the timing when we quote.
How do I get a quote for window mastic in Poynings?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.