East Sussex · England
New-build mastic & snagging in Old Heathfield, East Sussex
Professional new build mastic in and around Old Heathfield, with old sealant always removed completely and a 12-month guarantee.
- Shower seals failing in the first year or two
- Cracked caulk along new skirting
- Sealant that never bonded to the surface
New build mastic in Old Heathfield
Across Old Heathfield, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method does not change: remove, clean, prime where needed, then a neat new bead. If you are dealing with frame joints opening as the plaster dries and cracked caulk along new skirting, we can help, on kitchens, show homes and bathrooms & en suites alike.
Work in a small place like Old Heathfield just needs the journey and access planning, and once on site, the job is the same as anywhere.
We stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.
- Place
- Old Heathfield (TN21)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need new build mastic in Old Heathfield?
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
These are the problems we’re asked about most:
- Plot mastic for developers ahead of handover
- Cracks appearing as a new home settles
- Cracked sealant around new window and door frames
- Messy sealant that spoils new finishes
Whether the job is in Old Heathfield itself or nearby, the right material for each joint matters as much as a neat finish.
What your quote should include
- How the colour is chosen
- How long the guarantee is
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
What new build mastic looks like in Old Heathfield
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Old Heathfield, as everywhere, new build mastic is only as good as the preparation behind it.
Old Heathfield is about 7 miles north of Hailsham, in East Sussex. Anywhere in TN21, our applicators can take on new build mastic. Our area takes in 289 places across East Sussex. We also work in Brighton, around 20 miles away.
Postcode districts we cover here for new build mastic: TN21. Whether your property is on School Hill and Church Street or a nearby road, we can help. Neighbouring places we cover for new build mastic include Cade Street (1 mile north), Sandy Cross (1 mile west), Heathfield (1 mile west), Broad Oak (1 mile north) and Warbleton (1 mile south). Larger places within reach include Eastbourne (12 miles south), Hastings (14 miles south-east), Bexhill-on-Sea (11 miles south-east), Seaford (15 miles south-west), Lewes (13 miles south-west) and Hailsham (7 miles south).
What’s near Old Heathfield
In Old Heathfield, that means homes and buildings near The Star Inn and Parkside Community Primary School and the streets around them. A little further out are Hellingly Hospital (5 miles south) and Old Castle (3.6 miles east). Not far away are Selwyns Wood.
Landlords, agents and businesses in Old Heathfield
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
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.
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out.
Show homes
We seal show-home bathrooms, kitchens and frames ready for viewings. We will plan around viewing times.
What we do, step by step
On the day, we start by going over the job with you, so you know exactly what we’re doing. Surfaces next to the work are protected before any work starts. The work generally takes anything from a few hours to several days, depending on the number of plots. In a small place like Old Heathfield, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Asking for a quote is easy: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will take it from there.
Advice
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Why deal with it now?
A quick bead over the top of the old sealant can look fine at first, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. In a small place like Old Heathfield, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us.
Why book with us
- 180+ five-star Google reviews
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- Any old sealant cut out fully, not covered over
Take a look at how sealant jobs are priced and customer reviews.
Nearby places to Old Heathfield
What else we do in Old Heathfield
Common questions in Old Heathfield
Do you cover Old Heathfield for new build mastic?
Yes. We work across London and the South East, and Old Heathfield is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Is there a guarantee on new build mastic in Old Heathfield?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Should I wait before resealing?
Any seal that is leaking should be redone right away. Cosmetic gaps can wait until the first year or two of movement has passed.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
My new home is still under warranty. Should I contact you?
Start with the builder if you are in the snagging or warranty period. Once that’s done, or if they will not put it right, we will cut it out and reseal it.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will there be a smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
What we cannot put right
Before booking, it’s worth knowing the limits too:
- Baths and trays that move too much for sealant to cope with
- Cracking that points to a structural problem
- Damaged fittings that need replacing
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Bathrooms & en suites
- Kitchens
- Show homes
- Plot handovers
- Skirting & floors
- Windows & doors