Kent · England

New Build Mastic in Sibertswold

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Sibertswold and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Smeared, uneven beads picked up at snagging
  • Cracked caulk along new skirting
  • Sealant applied over dusty or wet surfaces

Need new build mastic in Sibertswold?

What we can’t put right

New sealant cannot fix everything, and we’d rather say so up front. It will not solve:

  • Movement caused by a poorly fitted tray or bath
  • Cracking that points to a structural problem
  • Leaking fittings rather than failed sealant

If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.

What we seal

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

About our new build mastic in Sibertswold

For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. Typical jobs include shower seals failing in the first year or two and gaps behind new kitchen upstands, on kitchens, windows & doors and bathrooms & en suites.

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

You get a one-year guarantee, the same in Sibertswold as everywhere else we work.

Location
Sibertswold (CT15)
Wider area
Kent
Cover
One year on every job
Price
A clear price before we start
Call
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

Your questions about new build mastic in Sibertswold

Do you cover Sibertswold for new build mastic?

Yes, Sibertswold is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.

I let a flat near Shepherds Well station. Can you help?

Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Do you have insurance?

Yes. We are fully insured for domestic and commercial work.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator.

Which products do you use?

Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.

Can I add another job to the visit?

Yes. Just list everything you need and we will quote it together.

Where do you work from?

Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.

Will you leave a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

Why act early in Sibertswold

The builder is normally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Where a wall is exposed, as many are in small places like Sibertswold, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.

Why book with us

  • Fully insured
  • One-year guarantee on every job
  • 180+ five-star Google reviews
  • An ARBOMaster approved applicator

Take a look at how sealant jobs are priced and customer reviews.

New build mastic in Sibertswold: 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.

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

Sibertswold (also: Shepherdswell) is about 4 miles north-west of Dover, in Kent. Our applicators cover new build mastic for homeowners, landlords and businesses in Sibertswold and the surrounding area, as part of our work across Kent. Across Kent, we cover 922 places, and Sibertswold is one of them. Our Chelmsford page covers work nearby.

Work in CT15 works the same way as everywhere else we cover. You’ll find streets such as Station Road, Hill Avenue and Eythorne Road, all of which we cover. Neighbouring places we cover for new build mastic include Halfway Street (1 mile south-west), Coldred (1 mile south-east), Waldershare (1 mile east), Eythorne (2 miles north-east) and Lydden (2 miles south). Within a short drive, we also cover Canterbury (9 miles north-west), Margate (15 miles north-east), Dover (4 miles south-east), Folkestone (8 miles south), Ramsgate (13 miles north-east) and Broadstairs (15 miles north-east).

Around Sibertswold

We work in homes and buildings around The Bricklayers' Arms, among other places. Sibertswold has its own railway station: Shepherds Well station. Nearby you will also find Dover Transport Museum (3.6 miles south-east) and Buckland Hospital (4.6 miles south-east).

Map of Sibertswold © OpenStreetMap contributors

What the job involves on each surface

Kitchens

New-kitchen sealant is often applied in a rush. We remove it and reseal with a kitchen-suitable sealant.

Windows and doors

External mastic around new windows and doors is sometimes rushed or missed. We reseal it with a weatherproof, flexible sealant.

How it works

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Sibertswold 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.

  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. New sealant suited to each joint is applied and tooled neatly.
  5. Finally, each room is checked and you are given the cure time.

Preparing for the visit

  • Try not to wet indoor joints just before the visit
  • Tell us if parking is tricky
  • Let us know about earlier repairs to the joints

How to get a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or drop us an email.

Get a price

Related advice

Do you need new build mastic in Sibertswold?

Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Both fail early.

Signs it’s time to call us include:

  • Cracks appearing as a new home settles
  • Sealant applied over dusty or wet surfaces
  • Sealant work across a run of new homes
  • Gaps behind new kitchen upstands

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

What to look for in a quote

  • What guarantee comes with the work
  • How the surfaces are prepared before sealing
  • When the joint can take water or movement
  • How much experience the applicator has

Choosing a sealant specialist

For landlords and businesses

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

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

What affects the cost of new build mastic

The quote reflects the job in front of us. We take into account:

  • The size of the job
  • How many areas need sealing
  • How easy the joints are to reach
  • Any working-time requirements on site

Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.

What we need to know

Before you ask for a quote, have a think about:

  • The address or postcode of the job
  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it’s a home or a business
  • If someone has resealed it before

Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.

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