West Sussex · England
Window & door mastic in Dragons Green, West Sussex
We cover Dragons Green for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Cracked or shrunken mastic around the frame
- Leaking joints at the ends of sills
- Gaps left after new windows were fitted
Window mastic in Dragons Green, done properly
A window frame and the wall around it expand and shrink at different rates. 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. If you have gaps left after new windows were fitted and a bead that doesn’t match the frame, we can put it right.
Homes in small places like Dragons Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Dragons Green (RH13)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work can’t fix
To be straight with you, there are a few things sealant will not fix:
- A door that needs adjusting, rehanging or new seals
- Faulty window hardware
- Damp problems in the wall away from the window
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Dragons Green
- Window sills
- Composite doors
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Patio & French doors
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Keep paint off silicone joints
- Clear any debris from frame drain holes
- Walk round the house once a year and look at the joints
- Avoid blasting the frames with a pressure washer
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
Towns and villages near Dragons Green
What else we do in Dragons Green
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a morning for a couple of windows and a door, depending on the size of the job. Somewhere like Dragons Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Clear items away from the joints we are working on
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
If you are in Dragons Green and need window mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Advice
Why deal with it now?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Where a wall is exposed, as many are in small places like Dragons Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- 12-month guarantee on every job
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
- A sealant colour to suit the surroundings
Take a look at our cost guide and our reviews.
Dragons Green homes and the weather
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.
For an older house near a landmark such as The Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Shipley CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Dragons Green is about 5 miles south-west of Horsham, in West Sussex. Whether you’re in the middle of Dragons Green or further out, window mastic is available for homes and businesses alike. Our area takes in 371 places across West Sussex, large and small. For nearby work, see our Crawley page, about 11 miles away.
We work across RH13 for window mastic and the streets around it. Window mastic is available to properties on Dragons Lane and Dragons Green Road. We also cover the places around Dragons Green: Shipley (1 mile south), Whitehall (1 mile south), Broomer's Corner (2 miles south-west), Dial Post (3 miles south) and West Grinstead (3 miles south-east). Further out, we also cover Crawley (11 miles north-east), Horsham (5 miles north-east), Worthing (12 miles south), Haywards Heath (12 miles east), Burgess Hill (11 miles east) and Littlehampton (15 miles south-west).
Landmarks near Dragons Green
The nearest railway station is Billingshurst station, about 3.4 miles west. Nearby you’ll also find Horsham Hospital (5.4 miles north-east) and Christs Hospital School Museum (3.2 miles north). Green spaces nearby include Knepp Wildland.
FAQs for Dragons Green
Is Dragons Green in your area for window mastic?
Yes. We work across London and the South East, and Dragons Green is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Is Dragons Green within the area you cover?
Yes, we do. 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.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Do you work for landlords and businesses?
Yes. We work for householders, landlords, letting agents, businesses and hotels across West Sussex.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Quotes for window mastic in Dragons Green
You’ll get a clear quote before work begins. It’s based on:
- The type of sealant required
- The size of the job
- Any mould that needs treating
- How many rooms, windows or areas are involved
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- The address or postcode of the job
- The rough size of the job
- The type of property
- Photos by email, if that’s easy
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before work begins.
Do you need window mastic in Dragons Green?
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Look out for any of the following:
- Gaps between the frame and the inside reveal
- Mastic that’s falling out in pieces
- Sealant in the wrong colour for the frame
- Whistling draughts around closed windows
Rented homes near Billingshurst station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- What preparation is included
- What the cure time is
- Who turns up on the day
- How hidden problems are handled