East Sussex · England
Hadlow Down New Build Mastic
We cover Hadlow Down for plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly.
- Shower seals failing in the first year or two
- Joints pulling apart as timber shrinks
- Worktop and upstand sealant coming away
New build mastic for homes and businesses in Hadlow Down
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. Common call-outs are for gaps behind new kitchen upstands and internal frame sealant that has split, across windows & doors, kitchens and plot handovers.
For a small place like Hadlow Down, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
All of our work is guaranteed for twelve months, in Hadlow Down and everywhere else we cover.
- Where
- Hadlow Down (TN22)
- Region
- East Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
Before we leave, we go over the finished joints with you. The visit itself usually takes a few hours for most snagging lists, longer for a run of plots, depending on how much there is to do. Somewhere like Hadlow Down needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Preparing for the visit
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Related advice
Also near Hadlow Down
Other services in Hadlow Down
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Get a leaking seal dealt with right away
- Do not seal over failed sealant yourself
- Watch for new gaps as the house dries out
- Ventilate bathrooms well, especially in the first year
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and protects the rest of the house.
What the job involves on each surface
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant in a matching colour.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.
New build mastic around Hadlow Down
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Buxted station, the sealant around baths, showers and frames is worth checking in the first year or two. In and around Hadlow Down, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Hadlow Down is about 4 miles south of Crowborough, in East Sussex. Homes, rented property, offices and hotels in Hadlow Down is covered for new build mastic, old or new, large or small. The work is guaranteed for a year. Our East Sussex coverage runs to 289 places, and Hadlow Down is one of them. Crawley is on our list too, about 18 miles from Hadlow Down.
Postcode districts we cover here for new build mastic: TN22. Streets in the area include Waghorns Lane, School Lane and St Marks Field. If you’re just outside Hadlow Down, we cover Etchingwood (2 miles south-west), Buxted (2 miles west), Potter's Green (2 miles south-west), Blackboys (2 miles south) and Framfield (3 miles south-west). Further out, we also cover Eastbourne (15 miles south), Lewes (11 miles south-west), Hailsham (10 miles south), Crowborough (4 miles north), Uckfield (4 miles south-west) and Newhaven (15 miles south).
Near you in Hadlow Down
The closest station to Hadlow Down is Buxted station, roughly 2.1 miles west of the centre. Nearby you will also find Crowborough War Memorial Hospital (3.8 miles north) and Tickerage Castle (2.3 miles south-west). Open spaces near Hadlow Down include Selwyns Wood.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
When it is not the sealant
To be straight with you, there are a few things sealant will not fix:
- Leaking fittings rather than failed sealant
- Baths and trays that move too much for sealant to cope with
- Cracked trays, tiles or worktops
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
- Skirting & floors
What affects the cost of new build mastic
Jobs vary more than people expect. What affects the quote:
- Access and height
- The number and length of the joints
- How many rooms, windows or areas are involved
- Any working-time requirements on site
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Asking for a quote
What to tell us when you ask for a quote:
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- The address or postcode of the job
- Whether it has been sealed before
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Hadlow Down questions
Do you cover Hadlow Down for new build mastic?
Yes, Hadlow Down is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Do you work for landlords with property near Buxted station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can you do plot mastic on a new development?
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 take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Where do you work from?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
My new home is still under warranty. Should I contact you?
Your builder, if you’re still in their snagging or warranty period. After that, or if their repair keeps failing, we can do it and our work is guaranteed for a year.
Why it’s worth doing now in Hadlow Down
The builder is usually the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Where a wall is exposed, as many are in small places like Hadlow Down, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
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, and we’ll explain the quote if you ask.
What you get with us
- More than 20 years in sealant work
- Anti-fungal sanitary silicone in wet areas
- ARBOMaster approved applicator
- Colour picked to suit the job