West Sussex · England
Window & door mastic in Partridge Green, West Sussex
Window mastic for Partridge Green and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
- Sealant in the wrong colour for the frame
FAQs for Partridge Green
What guarantee comes with window mastic in Partridge Green?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Is Partridge Green within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can new window sealant be painted?
It depends on the sealant. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
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 will know the timing when we quote.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
How long before the joint can be used?
It depends on the product and the conditions. We tell you how long to leave it before we go.
About our window mastic in Partridge Green
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. Common call-outs are for cracked internal joints between frame and plaster and black, perished sealant on frames, on composite doors, timber windows & doors and patio & French doors.
In a village or hamlet like Partridge Green, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Every job comes with our one-year guarantee, wherever you are in West Sussex.

- Where
- Partridge Green (RH13)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
A little care helps the new joints last. Our advice:
- Air rooms to keep condensation down around windows
- Keep timber frames painted
- Do not aim a pressure washer at the joints
- Keep drainage slots and sill grooves clear
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Around Partridge Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why Partridge Green clients choose us
- Colour agreed with you before work begins
- Rated 4.9 stars on Google
- 20+ years of sealant experience
- Arbo and Everbuild products
Take a look at what affects the cost or customer reviews.
What happens on the day
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes most of a day for a typical house, less for a few frames in most cases. Somewhere as small as Partridge Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Clear the area around the work
- Let us know about earlier repairs to the joints
- Tell us about any water getting in
How to get a quote
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Read more
Places near Partridge Green
More services for Partridge Green
What we’re called out for in Partridge Green
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
The problems people normally mention when they call are:
- Cracked or shrunken mastic around the frame
- Draughts coming in around windows and doors
- Sealant in the wrong colour for the frame
- Cracked internal joints between frame and plaster
For site and facilities teams at buildings such as Jolesfield CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- When the joint can take water or movement
- How the joint is cleaned and prepared
- How long the guarantee is
- Which sealant they’ll use, and why
How we quote for window mastic
The quote reflects the job in front of us. We look at:
- The type of sealant required
- How easy the joints are to reach
- When we can work, for business premises
- The size of the job
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What to tell us for a quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- The rough size of the job
- Where the job is, and your postcode
- How we’d reach the joints
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Worn gaskets, brush seals or a door that has dropped
- A frame that has rotted at the joint
- Penetrating damp from a failed cavity tray or render
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Composite doors
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- Window sills
- uPVC windows
Window mastic in Partridge Green: local notes
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.
For an older house near a landmark such as St Michael and All Angels Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Partridge Green is about 7 miles south of Horsham, in West Sussex. If you need window mastic in Partridge Green, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We’re based in Crawley and cover West Sussex, Partridge Green included. 371 places in West Sussex are on our list. We also work in Crawley, about 12 miles from Partridge Green.
Every address in RH13 is within our area for window mastic. If you need window mastic at a property on High Street, Church Road and Oakwood or anywhere close by, our applicators can take on the job. If you’re just outside Partridge Green, we cover Littleworth (1 mile north), West Grinstead (1 mile north-west), Ashurst (2 miles south-west), Dial Post (2 miles west) and Shipley (3 miles north-west). We also work in nearby towns such as Crawley (12 miles north-east), Horsham (7 miles north), Worthing (10 miles south-west), Haywards Heath (9 miles east), Burgess Hill (8 miles east) and Littlehampton (14 miles south-west).
Near you in Partridge Green
Not far away are Knepp Wildland.
Surface by surface
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
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.
