East Sussex · England
Magham Down New Build Mastic
New build mastic for Magham Down, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Internal frame sealant that has split
- Gaps opening as the house dries out and settles
- Gaps behind new kitchen upstands
How we handle new build mastic in Magham Down
We work in new homes and on new-build sites across Magham Down. One shower or a whole phase of plots, the method doesn’t change: remove, clean, prime where needed, then a neat new bead. We are often asked to deal with internal frame sealant that has split and beads laid onto grit and dust from the build, across plot handovers, kitchens and show homes.
For a small place like Magham Down, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
There’s a 12-month guarantee on every job.

- Place
- Magham Down (BN27)
- Region
- East Sussex
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours in a single home in most cases. For a village or hamlet like Magham Down, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- We clean off dust from the build and prime the surfaces where the product needs it.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Keep children and pets away from the work area
Getting a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Advice
New build mastic around Magham 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.
Around Magham Down, as everywhere, new build mastic is only as good as the preparation behind it.
Magham Down is about 2 miles north-east of Hailsham, in East Sussex. Wherever you are in the BN27 postcode area, we can carry out new build mastic at your property. Magham Down is one of 289 towns and villages in East Sussex where we work for new build mastic. Our Brighton page covers work nearby.
Every address in BN27 is covered for new build mastic, from the main roads to the quietest streets. Whether your property is on Old Road and Nodes Lane or a nearby road, we can help. We also cover the places around Magham Down: Hellingly (1 mile west), Upper Horsebridge (1 mile west), Hailsham (2 miles south-west), Lower Horsebridge (2 miles west) and Tile Hurst (2 miles west). We also work in nearby towns such as Eastbourne (7 miles south), Hastings (12 miles east), Bexhill-on-Sea (8 miles east), Seaford (11 miles south-west), Lewes (12 miles west) and Crowborough (13 miles north-west).
Local landmarks in Magham Down
For rail, the closest station is Polegate station, roughly 4.5 miles south-west of the centre. Well-known places in the area include Amberstone Hospital (0.5 miles west) and Herstmonceux Castle (2.4 miles east).
When it is not the sealant
We’ll always be straight with you, so here’s what new sealant will not do:
- Your warranty claim itself, which is between you and the builder
- A tray or bath that isn’t properly supported, until it’s fixed
- Broken tiles or a split tray
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Kitchens
- Bathrooms & en suites
- Windows & doors
- Skirting & floors
- Show homes
- Plot handovers
Why act early in Magham Down
For developers, getting the sealant right first time saves return visits. Every return visit for a failed seal takes time, and they’re avoidable with good preparation. In a small place like Magham Down, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits. We will give you a clear price for the lot.
Why book with us
- A sealant colour to suit the surroundings
- Colour agreed with you before we start
- 180+ five-star Google reviews
- Old sealant always removed completely
Take a look at our cost guide or customer reviews.
Landlords, agents and businesses in Magham Down
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Landlords and agents in Magham Down can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Surface by surface
Show homes
In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Each joint is cleaned and primed where needed to keep callbacks down.
Also near Magham Down
What else we do in Magham Down
What we are called out for in Magham Down
Sealant applied onto damp surfaces doesn’t bond well. Site programmes do not always leave time for joints to dry before the sealant goes on.
People generally contact us after spotting one of these:
- Joints pulling apart as timber shrinks
- Leaking shower tray seals in a new home
- Second-fix sealing on new plots
- Untidy sealant flagged on a snagging list
For new homes near Polegate station, it’s worth checking the sealant early, while snags are still fresh.
What to look for in a quote
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- Who does the work, and how experienced they are
- Are they insured?
FAQs for Magham Down
I let a flat near Polegate station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Magham Down?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you do commercial work?
Yes. We can plan bigger jobs in stages to suit the site.
Do you guarantee your work?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we will sort it.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
What does new build mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or email us with a short description of the job.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
How to look after the new joints
Aftercare is simple:
- Use the extractor fan every time you shower
- Raise failed sealant with the developer while you are covered
- Act quickly if a seal starts to leak
- Avoid running a DIY bead over the old one
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
