Medway · England

New-build mastic & snagging in Borstal, Medway

We cover Borstal for 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.

  • Gaps between new skirting and floors
  • Gaps behind new kitchen upstands
  • Sealant applied over dusty or wet surfaces

Book new build mastic in Borstal

When to call us in Borstal

Sealant is often one of the last jobs before handover. Joints are not always cleaned of dust or primed, and the sealant sits on grit instead of the surface.

Common reasons people contact us include:

  • Kitchen sealant that has pulled off the wall
  • Skirting joints opening in the first winter
  • Internal frame sealant that has split
  • Gaps opening as the house dries out and settles

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

What your quote should include

  • Whether VAT is included
  • Whether they’re fully insured
  • How long the guarantee is
  • Which colour the sealant will be

10 questions to ask before you book

New build mastic in Borstal

Building dust is behind a lot of failed new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly. We work on skirting & floors, show homes and windows & doors, and the jobs we see most are new-build shower sealant that has already split and gaps between new skirting and floors.

In smaller places like Borstal, new homes tend to come as small developments or single plots. The sealant around baths, showers, frames and skirtings needs to be right from the start.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Silicone being applied where a shower enclosure meets beige wall tiles
Where
Borstal (ME1, ME2)
Wider area
Medway
Guarantee
A year, on every job
Quote
A clear quote up front
Phone
0345 464 0079
Page updated
26 October 2026

Work for landlords, hotels and businesses

Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

Surface by surface

Kitchens

As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.

Skirting and floors

Wet-area floor joints need a flexible seal. They get a flexible, water-resistant sealant.

New homes and floors in Borstal

Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Around Borstal, as everywhere, new build mastic is only as good as the preparation behind it.

Borstal is about 1 mile south-west of Rochester, in Medway. We provide new build mastic to homes and businesses in Borstal and the surrounding area. Across Medway, we cover 68 places, Borstal among them. There’s also a page for Chelmsford, roughly 25 miles from Borstal.

All of ME1 and ME2 is within our area for new build mastic. If you need new build mastic at a property on Hill Road, Manor Lane and Mount Road or a nearby road, we can help. Borstal is on the M2, so it’s easy for us to get to with everything needed for new build mastic. If you’re just outside Borstal, we cover Rochester (1 mile north-east), Strood (1 mile north), Cuxton (1 mile west), North Halling (2 miles west) and Wouldham (2 miles south-west). Larger places within reach include Gillingham (4 miles east), Rainham (5 miles east), Park Wood (5 miles east), Lordswood (4 miles south-east), Twydall (4 miles east) and Hoo St Werburgh (5 miles north-east).

What’s near Borstal

Typical jobs here are in homes near Sir Joseph Williamson's Mathematical School, Former Ordnance Store At Chatham Gun Wharf and St John Fisher RC Comprehensive School and the streets around them. The closest station to Borstal is Cuxton station, roughly 1 mile west. Nearby you will also find Six Poor Travellers House (1.3 miles north-east) and Rochester Castle (1.3 miles north-east). The countryside around Borstal includes Blue Bell Hill and Ranscombe Farm.

Map of Borstal © OpenStreetMap contributors

Should I try it myself first?

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.

If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.

What happens on the day

Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the number of plots. Parking around Borstal is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.

  1. We start by going through the snagging items or plot schedule with you.
  2. The failed sealant is removed completely, with no layer left behind.
  3. Joints are vacuumed and cleaned of building dust.
  4. Primer goes on where the surface and product need it, then the new sealant.
  5. We tool every joint neatly and tell you when each area can be used.

Preparing for the visit

  • Let us know about parking restrictions
  • Try not to wet indoor joints just before the visit
  • Mention any tricky access

Get a quote

Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.

Get a quick quote

Read more

Borstal: your questions answered

Do you cover smaller places like Borstal?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you help a landlord with a rental near Cuxton station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 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 every job we do.

Can you reseal over the builder’s sealant?

No. Fresh silicone does not stick to the old layer, so it soon lifts and traps water. We cut the old bead out completely.

Will there be a smell?

Possibly a little. It fades as the sealant cures.

Do you use white or clear sealant?

White and clear are the most common, but sealant comes in other colours too. We match the colour to the finish before we begin.

Do you take out the old sealant first?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Do you guarantee your work?

Yes. Each job is guaranteed for twelve months, large or small.

When something else is needed

Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:

  • Structural cracks in walls or ceilings
  • Damaged fittings that need replacing
  • A tray or bath that isn’t properly supported, until it’s fixed

Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.

Where we work in Borstal

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

Aftercare tips

Simple care keeps the joints in good condition. Our advice:

  • Ventilate bathrooms well, especially in the first year
  • Look at the sealant regularly in the first couple of years
  • Follow the cure time we give you
  • Photograph failed sealant before it’s redone

Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing.

Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.

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