East Sussex · England

New Build Mastic in Sweethaws

Problem with your new-build sealant joints in Sweethaws? We cut out the old, prepare the joints and apply the right sealant.

  • Kitchen sealant that has pulled off the wall
  • Cracked caulk along new skirting
  • Messy sealant that spoils new finishes

New build mastic for Sweethaws homes and businesses

About our new build mastic in Sweethaws

Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. We work on windows & doors, plot handovers and bathrooms & en suites, and people most often call us about worktop and upstand sealant coming away and leaking shower tray seals in a new home.

In a village or hamlet like Sweethaws, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.

Location
Sweethaws (TN6)
Region
East Sussex
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

Landlords, agents and businesses in Sweethaws

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

What we do, step by step

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours in a single home, and the area is left clean. Somewhere like Sweethaws needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
  2. The old bead comes out in full, with no layer left behind.
  3. Each joint is cleaned of dust and grit, then primed if required.
  4. We apply a sealant that suits each joint and tool it to a neat finish.
  5. Each area is checked and left with its cure time.

Getting ready for the visit

  • Mention any leaks or damp you’ve noticed
  • Tell us about access, such as stairs, a lift or high-level joints
  • Mention any parking rules near the property

Get a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.

Ask for a quote

Advice

What affects the quote in Sweethaws

There’s no set price list, because jobs vary so much. What we look at:

  • How many areas need sealing
  • How easy the joints are to reach
  • Whether old sealant or filler has to be cut out
  • Whether there’s mould to deal with

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.

Asking for a quote

When you contact us, it’s useful to know:

  • Photos by email, if that is easy
  • Any access issues, like height or stairs
  • Where the job is, and your postcode
  • How many joints, rooms or windows are involved

To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Sweethaws questions

Do you cover Sweethaws for new build mastic?

Yes, Sweethaws is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.

Will you come out to Sweethaws?

Yes, Sweethaws is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

When is the best time to reseal in a new build?

That depends on the joint. A leaking shower or bath seal should be redone straight away, while small cosmetic gaps can wait a while.

Are you ARBOMaster approved?

Yes. We hold ARBOMaster approved applicator status, and we are fully insured.

Is the work guaranteed?

Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.

Will you leave a mess?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

Where are you based?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Can I do it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

How the job changes by surface

Plot handovers

Good preparation at handover saves snagging later. Dust from the build is removed first and primer used where needed.

Windows and doors

Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one in a matching colour.

Do you need new build mastic in Sweethaws?

New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. As it does, timber shrinks and joints open and the sealant has to cope with the movement.

Most people get in touch when they notice one of these:

  • Smeared, uneven beads picked up at snagging
  • New-build shower sealant that has already split
  • Cracks appearing as a new home settles
  • Cracked sealant around new window and door frames

For new homes near Crowborough station, it’s worth checking the sealant early, while snags are still fresh.

Questions to ask before you book

  • Whether VAT is included
  • Which sealant they’ll use, and why
  • What the cure time is
  • Who does the work, and how experienced they are

Choosing a sealant specialist

What sealant work can’t fix

In fairness, there are a few things sealant will not fix:

  • Cracking that points to a structural problem
  • Damaged fittings that need replacing
  • Leaking fittings rather than failed sealant

If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.

Joints and surfaces we work on

  • Kitchens
  • Plot handovers
  • Bathrooms & en suites
  • Show homes
  • Windows & doors
  • Skirting & floors

Why it’s worth doing now in Sweethaws

A tube of sealant from the DIY shop will not fix the cause: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. Around Sweethaws, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Combining jobs into one visit is usually more efficient than separate visits. We’ll give you a clear price for the lot.

What you get with us

  • We never seal over old sealant
  • Domestic, commercial and hotel work
  • Tidy, careful work
  • White, clear, grey or another colour, product permitting

Take a look at what affects the cost and customer reviews.

New build mastic around Sweethaws

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

In and around Sweethaws, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Sweethaws is about 2 miles south-west of Crowborough, in East Sussex. Our applicators cover new build mastic for homes and businesses in Sweethaws. Our area takes in 289 places across East Sussex, from the larger towns to small villages. There’s also a page for Crawley, roughly 15 miles from Sweethaws.

We cover every part of the TN6 postcode area for new build mastic and the streets around it. We also cover the places around Sweethaws: High Hurstwood (1 mile south), Crowborough (2 miles north-east), Fairwarp (2 miles south-west), Jarvis Brook (2 miles north-east) and Marden's Hill (2 miles north). Within a short drive, we also cover Lewes (12 miles south-west), Hailsham (13 miles south-east), Uckfield (5 miles south), South Malling (12 miles south-west), Heathfield (7 miles south-east) and Southover (13 miles south-west).

Landmarks near Sweethaws

We work in homes and buildings around The Crow & Gate inn, among other places. Sweethaws’s nearest station is Crowborough station, about 2.2 miles east of the centre. Well-known places in the area include Tickerage Castle (4.6 miles south) and Crowborough War Memorial Hospital (1.3 miles north-east). Open spaces near Sweethaws include Crowborough Country Park.

Map of Sweethaws © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job