Kent · England

New Build Mastic in Throwley

Plot mastic for developers and snagging failed sealant in new homes for Throwley, backed by a one-year guarantee. Call for a quick quote.

  • Gaps between new skirting and floors
  • Leaking shower tray seals in a new home
  • Gaps opening as the house dries out and settles

New build mastic near Throwley

Leave it or put it right?

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. In a small place like Throwley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.

Why book with us

  • Over 20 years’ experience
  • 180+ five-star Google reviews
  • ARBOMaster approved applicator
  • Tidy, careful work

Read our cost guide and customer reviews.

How we handle new build mastic in Throwley

We work in new homes and on new-build sites across Throwley. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. We are often asked to deal with messy sealant that spoils new finishes and second-fix sealing on new plots, across plot handovers, bathrooms & en suites and show homes.

For a small place like Throwley, the journey and access are planned in advance, and the work itself is the same as on any site.

Our work is backed for twelve months, in Throwley and everywhere else we cover.

Fresh white silicone going into the corner where a shower screen meets the tiled wall
Place
Throwley (ME13)
Region
Kent
Guarantee
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

Your questions about new build mastic in Throwley

Do you cover Throwley for new build mastic?

Yes, Throwley is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.

Do you cover smaller places like Throwley?

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. We remove every bit of the old bead before resealing.

Will there be a smell?

Sometimes, a little. It fades as the sealant cures, and ventilation helps.

How long does new build mastic take?

As a guide, most jobs take a few hours for most snagging lists, longer for a run of plots. Larger jobs naturally take longer.

Why has my new-build shower seal failed already?

Cracking in the first couple of years is common as timber and plaster dry out. Poor preparation at handover adds to it.

Can I do it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Is the work guaranteed?

Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.

Common problems we fix in Throwley

Later trades and the final clean can damage fresh sealant. A bead disturbed before it has cured may never seal properly, and the problem shows up after you move in.

Common reasons people contact us include:

  • Untidy sealant flagged on a snagging list
  • Sealant that never bonded to the surface
  • Joints pulling apart as timber shrinks
  • Cracked caulk along new skirting

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

Comparing quotes

  • What product goes in the joint
  • Is the old sealant removed completely?
  • What the quote includes, VAT included or not
  • When the joint can take water or movement

How to choose a mastic man

What new build mastic looks like in Throwley

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you’ve bought a new home near Faversham station, the sealant around baths, showers and frames is worth checking in the first year or two.

Throwley is about 4 miles south of Faversham, in Kent. Throwley gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent, large and small. Chelmsford is on our list too, around 36 miles away.

Jobs for new build mastic in ME13 is quoted and booked the same way as anywhere else. Close by, we work in Throwley Forstal (1 mile south), Sheldwich (1 mile north-east), Badlesmere (1 mile east), Sheldwich Lees (1 mile east) and Eastling (2 miles north-west). Within a short drive, we also cover Maidstone (14 miles west), Ashford (9 miles south), Canterbury (10 miles east), Sittingbourne (7 miles north-west), Whitstable (10 miles north-east) and Faversham (4 miles north).

Landmarks near Throwley

The nearest railway station is Faversham station, about 3.6 miles north-east. Nearby you will also find Newnham Castle (2.7 miles north-west).

Map of Throwley © OpenStreetMap contributors

What we do, step by step

A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It normally takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Throwley needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First we work through your snagging list or plot schedule with you.
  2. We cut out every bit of the failed or messy sealant.
  3. Surfaces are cleaned of building dust and primed where needed.
  4. New sealant suited to each joint is applied and tooled neatly.
  5. Finally, each room is checked and you’re given the cure time.

How to prepare

  • Try not to wet indoor joints just before the visit
  • For business premises, tell us about site rules or sign-in
  • Mention any tricky access

Ask for a quote

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.

Get a quick quote

Related advice

How to look after the new joints

Aftercare is simple, and it makes a real difference:

  • Ventilate bathrooms well, especially in the first year
  • Report sealant problems to your builder during the snagging period
  • Avoid scourers and strong chemicals on sealant
  • Act quickly if a seal starts to leak

Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.

Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you so report it promptly.

Should I try it myself first?

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

When it is not the sealant

A few problems are outside what sealant work can do:

  • Plumbing faults behind the sealant
  • Settlement cracks that need a surveyor
  • Baths and trays that move too much for sealant to cope with

If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.

Surfaces we seal

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

What affects the quote in Throwley

Your quote is based on your job. We take into account:

  • Mould in or behind the old joints
  • Which sealant suits the joint
  • How many areas need sealing
  • How much old sealant there is and how hard it is to remove

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

What we need to know

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • If someone has resealed it before
  • Where the job is, and your postcode
  • How many joints, rooms or windows are involved
  • Any access issues, like height or stairs

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.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job