East Sussex · England
New-build mastic & snagging in Sidley, East Sussex
Our applicators work in Sidley on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Joints pulling apart as timber shrinks
- Gaps between new skirting and floors
- Frame joints opening as the plaster dries
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents and landlords in Sidley can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
How we handle new build mastic in Sidley
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water gets into the floor or walls. Typical jobs include cracked caulk along new skirting and beads laid onto grit and dust from the build, across show homes, windows & doors and kitchens.
In and around Sidley, floors range from older timber boards to tiles and newer finishes, from timber that moves with the seasons to tiles laid on concrete. Skirting and threshold joints need a sealant that suits the floor.
Whatever the size of the job, you get the same one-year guarantee.

- Where
- Sidley (TN39, TN40)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Sidley
A new house holds a lot of water from the build, which takes a year or two to dry out. As it does, timber shrinks and joints open.
Most people get in touch when they notice something like this:
- Gaps behind new kitchen upstands
- Gaps between new skirting and floors
- Sealant work across a run of new homes
- Untidy sealant flagged on a snagging list
If you’ve bought a new home near Bexhill station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- How the colour is chosen
- Who turns up on the day
- What preparation is included
- Is the old sealant removed completely?
Aftercare tips
A little care helps the new joints last. Our advice:
- Ventilate bathrooms well, especially in the first year
- Keep water off fresh sealant until it has cured
- Record problems with dated pictures
- Avoid running a DIY bead over the old one
Follow the cure time we give you before the area gets wet. Most silicones need around a day to cure enough for use.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you.
Sidley questions
I let a flat near Bexhill station. Can you help?
Yes, rental work is part of what we do. Just ring 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 Sidley?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can new sealant go on top of the old bead?
No. Sealing over old sealant looks fine for a few weeks, then lifts. All the old sealant comes out before we start.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do you use white or clear sealant?
White and clear are the most common, but other colours are available. We match the colour to the finish before we begin.
Can you work from my snagging list?
Yes. We often work straight from a snagging list. We agree the sealant items with you before work begins.
My new home is still under warranty. Should I contact you?
Your builder, if you are still in their snagging or warranty period. If that doesn’t work out, we are happy to quote.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
What the job involves on each surface
Plot handovers
Send us the schedule and any sealant specification. Sealant work across the plot is covered.
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
What happens if it’s left?
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. Homes in smaller places like Sidley can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- You choose the colour before work begins
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
- Rated 4.9 stars on Google
Take a look at our cost guide and customer reviews.
When it is not the sealant
A few problems are outside what sealant work can do:
- Leaking fittings rather than failed sealant
- Deciding who is responsible under a builder’s warranty
- Settlement cracks that need a surveyor
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
What we seal
- Show homes
- Windows & doors
- Bathrooms & en suites
- Kitchens
- Skirting & floors
- Plot handovers
New build mastic around Sidley
Sidley is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Sidley, as everywhere, new build mastic is only as good as the preparation behind it.
Sidley is about 1 mile north of Bexhill-on-Sea, in East Sussex. Jobs in Sidley get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Sidley is one of 289 towns and villages in East Sussex where we work for new build mastic. We also work in Brighton, around 26 miles away.
Jobs for new build mastic in TN39 and TN40 works the same way as everywhere else we cover. Whether your property is on Mayo Lane, Bank Road and North Road or a nearby road, our applicators can take on the job. With the A2691 close by, Sidley is easy for our applicators to reach. If you are just outside Sidley, we cover Bexhill-on-Sea (1 mile south), Watermill (1 mile north), Lunsford's Cross (2 miles north-west), Russell's Green (3 miles north-west) and Hooe Common (3 miles west). We also work in nearby towns such as Eastbourne (9 miles south-west), Hastings (4 miles east), Hailsham (9 miles west), St Leonards (4 miles east), Polegate (10 miles west) and Hastings Old Town (5 miles east).
What’s near Sidley
In Sidley, that means homes and buildings near The New Inn, Bexhill High Academy and Egerton Park. The closest station to Sidley is Bexhill station, roughly 1.4 miles south of the centre. Nearby you will also find Bexhill Hospital (0.7 miles south) and Bexhill Costume And Social History Museum (1.2 miles south). Green spaces nearby include Senlac Hill and Gillham Wood.
Towns and villages near Sidley
Other services in Sidley
The process
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours for most snagging lists, longer for a run of plots, and we explain the cure time before we leave. A visit to Sidley is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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, with no layer left behind.
- 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.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
