Kent · England
Horns Green New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Horns Green and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Shower seals failing in the first year or two
- Skirting joints opening in the first winter
- Joints pulling apart as timber shrinks
Your questions about new build mastic in Horns Green
Is Horns Green in your area for new build mastic?
Yes. We work across London and the South East, and Horns Green is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear quote.
Will you come out to Horns Green?
Yes, Horns Green is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
What should I tell you?
Let us know what needs doing and where. If we need more, we will ask.
Do you use white or clear sealant?
White and clear are the most common, but sealant comes in other colours too. We choose one to suit the room before we begin.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do you take on second-fix sealing for builders?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we’ll quote.
Do you work for letting agents?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across Kent.
How we handle new build mastic in Horns Green
We never seal over a failed new-build bead. New silicone won’t bond to old silicone, so it all comes out before we clean, dry and reseal. If you have cracked caulk along new skirting and cracked sealant around new window and door frames, we can put it right, whatever the surface.
Around Horns Green, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Where
- Horns Green (TN14)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Windows and doors
On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.
What happens if it’s left?
The builder is usually the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. In a small place like Horns Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why Horns Green clients choose us
- You choose the colour before work begins
- We leave the area clean and tidy
- Sealant colour chosen to suit
- More than 20 years in sealant work
Read our cost guide or customer reviews.
Signs you need new build mastic in Horns 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 first.
Most people get in touch when they notice one of these:
- Sealant that never bonded to the surface
- Leaking shower tray seals in a new home
- Untidy sealant flagged on a snagging list
- Cracks appearing as a new home settles
Around Horns Green, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first
- What guarantee comes with the work
- Which colour the sealant will be
How the visit works
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. For a village or hamlet like Horns Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
- Clear the area around the work
Ask for a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
New build mastic around Horns Green
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 new homes near Knockholt station, it’s worth checking the sealant early, while snags are still fresh.
Horns Green is about 5 miles west of Sevenoaks, in Kent. Wherever you are in the TN14 postcode area, our applicators can take on new build mastic. 922 places in Kent are on our list, from the larger towns to small villages. You can also see our page for London, about 15 miles away.
All of TN14 is covered for new build mastic, from the main roads to the quietest streets. Streets in the area include Cudham Lane South and Thrift Lane, all of which we cover. We also cover the places around Horns Green: Burlings (1 mile north-east), Cudham (1 mile north-west), Berry's Green (1 mile north-west), Single Street (1 mile north-west) and Aperfield (2 miles west). Larger places within reach include Dartford (11 miles north-east), Sevenoaks (5 miles east), Royal Tunbridge Wells (14 miles south-east), Gravesend (15 miles north-east), Tonbridge (11 miles south-east) and Northfleet (14 miles north-east).
Near you in Horns Green
Around Horns Green, our work takes us to homes and buildings near The Blacksmith's Arms. Horns Green’s nearest station is Knockholt station, about 3.4 miles north-east. Nearby you’ll also find Orpington Hospital (3.8 miles north). Not far away are Downe Bank and Betsom's Hill.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Act quickly if a seal starts to leak
- Keep water off fresh sealant until it has cured
- Ventilate bathrooms well, especially in the first year
- Clean sealant with mild detergent, not abrasives
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries and can be resealed later.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak.
What affects the quote in Horns Green
Some jobs are bigger than they look, and some smaller. The main factors:
- The number and length of the joints
- How many areas need sealing
- The type of sealant required
- How easy the joints are to reach
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- A few photos by email, if you can
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Towns and villages near Horns Green
Also in Horns Green
DIY sealant or a professional job?
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.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.