West Sussex · England
New Build Mastic in Dragons Green
We cover Dragons Green for plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Plot mastic for developers ahead of handover
- Gaps opening as the house dries out and settles
- Messy sealant that spoils new finishes
How we handle new build mastic in Dragons Green
Snagging sealant properly means taking the failed bead out completely. New silicone will not bond to old silicone, so it all comes out before we clean, dry and reseal. We work on plot handovers, windows & doors and skirting & floors, and people most often call us about plot mastic for developers ahead of handover and gaps opening as the house dries out and settles.
For a small place like Dragons Green, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Dragons Green (RH13)
- Region
- West Sussex
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
New homes and floors in Dragons Green
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Dragons Green, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Dragons Green is about 5 miles south-west of Horsham, in West Sussex. Every kind of property in Dragons Green can book us for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. 371 places in West Sussex are on our list, from the larger towns to small villages. There’s also a page for Crawley, roughly 11 miles from Dragons Green.
Postcode districts we cover here for new build mastic: RH13. Whether your property is on Dragons Lane and Dragons Green Road or anywhere close by, our applicators can take on the job. Neighbouring places we cover for new build mastic include 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). Larger places within reach include 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).
Local landmarks in Dragons Green
The nearest railway station is Billingshurst station, roughly 3.4 miles west. Well-known places in the area include Horsham Hospital (5.4 miles north-east) and Christs Hospital School Museum (3.2 miles north). For a walk, there’s Knepp Wildland.
Towns and villages near Dragons Green
Also in Dragons Green
Landlord and commercial work in Dragons Green
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
If you manage several properties in or around Dragons Green, several properties can go on one quote. Send us the addresses and the work at each.
Signs you need new build mastic in Dragons Green
If plaster or screed was still damp when it was sealed, the bond suffers. Site programmes do not always leave time for joints to dry.
If you can see any of these, it’s time to have the joints looked at:
- Internal frame sealant that has split
- Plot mastic for developers ahead of handover
- Skirting joints opening in the first winter
- Sealant applied over dusty or wet surfaces
If you’ve bought a new home near Billingshurst station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- Is VAT in the price?
- What the cure time is
- What happens if the job turns out different
- What guarantee comes with the work
How to look after the new joints
To keep the joints looking good and working properly:
- Record problems with dated photos
- Follow the cure time we give you
- Act quickly if a seal starts to leak
- Watch for new gaps as the house dries out
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers to help keep mould away.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and the new finishes intact.
DIY sealant or a professional job?
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.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Dragons Green: your questions answered
I let a flat near Billingshurst station. Can you help?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Can you do new build mastic in Dragons Green?
Yes, Dragons Green is within the area we cover. Our work covers 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 send you a clear quote.
What colour sealant will you use?
That depends on what the joint meets: white or clear for most sanitary joints, colours for worktops, floors and frames. We will agree it with you first.
Is it worth resealing while the house is still settling?
Where water is getting through, do not wait. Small gaps that are just cosmetic can be resealed once movement has slowed.
What should I tell you?
Tell us what needs doing and where. We will ask anything else we need to know.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Why does sealant fail so quickly in new builds?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Both lead to early failure.
Can you reseal over the builder’s sealant?
No. Fresh silicone doesn’t stick to the old layer, so it soon lifts and traps water. The old sealant always comes out first.
The process
On the day, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work starts. Most jobs take a few hours in a single home. 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.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you’re given the cure time.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or send us an email.
Related advice
What sealant work cannot fix
To be straight with you, there are a few things sealant won’t fix:
- Leaks from pipes, valves or wastes, which need a plumber
- Broken tiles or a split tray
- A tray or bath that isn’t properly supported, until it’s fixed
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Show homes
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Kitchens
Why it’s worth doing now in Dragons Green
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. Where a wall is exposed, as many are in small places like Dragons Green, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear price before work begins.
Why choose Mr Mastic in Dragons Green
- White, clear, grey or coloured to suit, where the product allows
- We’re fully insured
- 4.9 on Google from 180+ five-star reviews
- Arbo and Everbuild products
Take a look at what affects the cost and what customers say.