East Sussex · England
New Build Mastic in Northease
We cover Northease for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
New build mastic in Northease
Snagging sealant properly means taking the failed bead out completely. Fresh silicone can’t bond to the old layer, so the joint is cut out, cleaned, dried and resealed. If you are dealing with plot mastic for developers ahead of handover and smeared, uneven beads picked up at snagging, we can put it right.
Around Northease, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
Every job comes with a one-year guarantee, wherever you are in East Sussex.
- Location
- Northease (BN7)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Act quickly if a seal starts to leak
- Wait for the cure time before using a resealed shower
- Look at the sealant regularly in the first couple of years
- Record problems with dated pictures
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
New build mastic in Northease: local notes
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.
If you’ve bought a new home near Southease station, the sealant around baths, showers and frames is worth checking in the first year or two.
Northease is about 3 miles south of Lewes, in East Sussex. If you need new build mastic in Northease, it’s easy to get a quote: please ring 0345 464 0079 or email us. We cover East Sussex from our Crawley base, Northease included. Our East Sussex coverage runs to 289 places, Northease among them. Brighton is on our list too, around 6 miles away.
Work in BN7 works the same way as everywhere else we cover. Other places close to Northease include Rodmell (1 mile south-east), Iford (1 mile north-west), Kingston near Lewes (2 miles north-west), Southover (2 miles north) and Cliffe (2 miles north). We also work in nearby towns such as Eastbourne (13 miles east), Seaford (6 miles south-east), Hailsham (11 miles east), Uckfield (10 miles north-east), Newhaven (4 miles south-east) and Peacehaven (3 miles south).
Around Northease
We work in homes and buildings around Lewes and Laughton Levels and the streets around them. For rail, the closest station is Southease station, about 1.4 miles south-east of the centre. Nearby you’ll also find Lewes Castle (2.2 miles north) and Lewes Victoria Hospital (2.4 miles north). Green spaces nearby include Southerham Farm and Itford Hill.
When something else is needed
In fairness, there are a few things sealant will not fix:
- Leaks from pipes, valves or wastes, which need a plumber
- Damaged fittings that need replacing
- Movement caused by a poorly fitted tray or bath
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
Surfaces we seal
- Show homes
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Plot handovers
- Skirting & floors
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. It normally takes anything from a few hours to several days, depending on the number of plots. Somewhere like Northease 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.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
Getting a quote
If you’re in Northease and need new build mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Read more
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
When to call us in Northease
A new house holds a lot of water from the build, and it dries out over the first couple of years. As it does, timber shrinks and joints open, and sealant that cannot keep up splits.
Common reasons people contact us include:
- Kitchen sealant that has pulled off the wall
- Beads laid onto grit and dust from the build
- Gaps opening as the house dries out and settles
- New-build shower sealant that has already split
In and around Northease, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Which colour the sealant will be
- Who turns up on the day
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
What happens if it’s left?
A quick bead over the top of the old sealant can look fine at first, but it will not bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. Around Northease, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
What you get with us
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and customer reviews.
More services for Northease
Landlords, agents and businesses in Northease
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
FAQs for Northease
Do you cover smaller places like Northease?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Southease station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Where are you based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
How long should I leave it?
It depends on the product and the conditions. We tell you how long to leave it before we go.
What colour sealant will you use?
It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before work begins.
Can you do plot mastic on a new development?
Yes. We seal plots to the developer’s programme. Get in touch with the number of plots and the scope and we will quote.
How long does new build mastic take?
It depends on the size of the job, but most jobs take anything from a few hours to several days, depending on the number of plots. We will tell you when we quote.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before any work starts.