East Sussex · England
New-build mastic & snagging in Telscombe, East Sussex
New build mastic for Telscombe and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Kitchen sealant that has pulled off the wall
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
How we handle new build mastic in Telscombe
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that is reasonable, but a seal that is letting water through needs doing now. We work on windows & doors, plot handovers and skirting & floors, and people most often call us about joints pulling apart as timber shrinks and cracked sealant around new window and door frames.
Where new homes go up in smaller places like Telscombe, it’s often a small development or a single plot. The sealant around baths, showers, frames and skirtings needs to be right from the start.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Telscombe (BN10, BN2, BN7)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Settlement cracks that need a surveyor
- Disputes or warranty claims with your builder
- Leaking fittings rather than failed sealant
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Show homes
- Windows & doors
- Skirting & floors
- Kitchens
- Bathrooms & en suites
- Plot handovers
Signs you need new build mastic in Telscombe
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
Signs it’s time to call us include:
- Messy sealant that spoils new finishes
- Gaps behind new kitchen upstands
- Sealant applied over dusty or wet surfaces
- Leaking shower tray seals in a new home
Around Telscombe, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- How the surfaces are prepared before sealing
- Whether the sealant suits the joint
- When the joint can take water or movement
- How hidden problems are handled
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Keeping the joints in good condition
So the new joints stay in good condition:
- Follow the cure time we give you
- Check bath and shower seals every few months as the house settles
- Raise failed sealant with the developer while you are covered
- Get a leaking seal dealt with straight away
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small.
New homes and floors in Telscombe
Telscombe is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. 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.
For new homes near Southease station, it’s worth checking the sealant early, while snags are still fresh.
Telscombe is about 6 miles east of Brighton, in East Sussex. We carry out new build mastic for householders, landlords and businesses in Telscombe, as part of our work across East Sussex. Our area takes in 289 places across East Sussex. We also work in Brighton, around 6 miles away.
Every address in BN10, BN2 and BN7 is covered for new build mastic. Streets in the area include Tor Road, View Road and Firle Road, all of which we cover. If you’re just outside Telscombe, we cover East Saltdean (1 mile west), Saltdean (1 mile west), Piddinghoe (2 miles east), Rodmell (2 miles north-east) and Rottingdean (3 miles west). Larger places within reach include Eastbourne (13 miles east), Seaford (6 miles east), Lewes (5 miles north), Hailsham (12 miles east), Uckfield (12 miles north-east) and Newhaven (3 miles east).
Around Telscombe
Around Telscombe, our work takes us to homes and buildings near Peacehaven Community School and Smugglers Rest pub and the streets around them. The nearest railway station is Southease station, about 2.6 miles north-east of the centre. A little further out are Planet Earth Museum (2.8 miles east) and Lewes Castle (4.9 miles north). Open spaces near Telscombe include Itford Hill and Beacon Hill Local Nature Reserve.
Nearby places to Telscombe
More services for Telscombe
Your questions about new build mastic in Telscombe
Can you help a landlord with a rental near Southease station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is Telscombe in your area for new build mastic?
Yes. We work across London and the South East, and Telscombe is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. If it is not resolved, we can reseal it properly.
How long does the job take?
As a guide, most jobs take a few hours in a single home. Larger jobs naturally take longer.
Are you fully insured?
Yes. We are fully insured.
Where is Mr Mastic based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Can you work from my snagging list?
Yes. Send it with pictures and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
What the job involves on each surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant.
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed to keep callbacks down.
What affects the cost of new build mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether there’s mould to deal with
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- Where the property is
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a job in Telscombe, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or drop us an email with the details, and pictures are welcome.