Kent · England

New-build mastic & snagging in Greenhill, Kent

Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Greenhill. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Skirting joints opening in the first winter
  • Frame joints opening as the plaster dries
  • Plot mastic for developers ahead of handover

Book new build mastic in Greenhill

About our new build mastic in Greenhill

If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you are still within the builder’s snagging or warranty period, tell them first, and if it isn’t put right, get in touch with us. We work on windows & doors, show homes and bathrooms & en suites, and people most often call us about frame joints opening as the plaster dries and gaps opening as the house dries out and settles.

In and around Greenhill, floors range from older timber boards to tiles and newer finishes, each moving in its own way. Skirting and threshold joints need a sealant that suits the floor.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Where
Greenhill (CT6)
Wider area
Kent
Cover
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Applicator in a navy top running a bead of silicone up a shower screen wall profile

When something else is needed

We will not take on work that won’t last, so here’s what sealant can’t put right:

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

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

Where we work in Greenhill

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

Your questions about new build mastic in Greenhill

Can you do new build mastic in Greenhill?

Yes. Our work covers London and the South East, and Greenhill is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.

Will you come out to Greenhill?

Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you quote for more than one area?

Yes, and it often makes sense. Doing several areas at once is generally more efficient.

Is it worth resealing while the house is still settling?

Any seal that is leaking should be redone straight away. Cosmetic gaps can wait until the first year or two of movement has passed.

Can you work from my snagging list?

Yes. Send it with pictures and we will quote for the sealant items. If something isn’t sealant, we’ll say so.

Can you do plot mastic on a new development?

Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. We clean and prime joints properly to keep callbacks down.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.

What do you put in the joint?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.

How we quote for new build mastic

You’ll get a clear quote before we start. It takes into account:

  • Which sealant suits the joint
  • The old material and how stubborn it is
  • Access and height
  • Mould in or behind the old joints

What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.

What we need to know

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

  • A few pictures by email, if you can
  • The rough size of the job
  • The type of property
  • Access, such as stairs, a lift or height

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.

How it works

Most of a good job is in the preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to several days, depending on the number of plots. A visit to Greenhill 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.

  1. Each joint is checked for movement before we start.
  2. Old sealant is cut out and the joints cleaned.
  3. Joints are dried and primed where the product calls for it.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. We check every joint and leave you with the cure times.

Before we arrive

  • Tell us about any previous sealing or DIY attempts
  • Let us know about stairs, lifts or work at height
  • For indoor joints, keep the area dry beforehand if you can

How to get a quote

We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.

Get a price

Related advice

DIY versus a professional finish

If you do try it yourself, take your time over the 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.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Joints and finishes in Greenhill homes

Greenhill is within about 1 mile of 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

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

Greenhill is about 1 mile south-west of Herne Bay, in Kent. We carry out new build mastic for homes and businesses in Greenhill. Greenhill is one of 922 towns and villages in Kent where we work for new build mastic. Our Chelmsford page covers work nearby.

Work in CT6 is quoted and booked the same way as anywhere else. New build mastic is available to properties on Love Street Close, Herne Drive and Matthews Road and the roads around them. Other places close to Greenhill include Eddington (1 mile east), Bullockstone (1 mile south-east), Herne Common (1 mile south-east), Herne Bay (1 mile north-east) and Herne (1 mile south-east). Further out, we also cover Canterbury (6 miles south), Margate (12 miles east), Ramsgate (13 miles east), Broadstairs (14 miles east), Whitstable (3 miles west) and Faversham (10 miles west).

What’s near Greenhill

Locally, jobs take us to homes and businesses close to The Share And Coulter Public House, Curtis Wood and Herne Bay High School. The nearest railway station is Herne Bay station, about 0.6 miles north-east of the centre. Nearby you will also find Whitstable and Tankerton Hospital (2.4 miles west) and Tankerton Castle (3.1 miles west). The countryside around Greenhill includes West Blean and Thornden Woods.

Map of Greenhill © OpenStreetMap contributors

How the job changes by surface

Skirting and floors

Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk painted or coloured to suit.

Bathrooms and en suites

En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.

Signs you need new build mastic in Greenhill

If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry first.

Any of these means the joints need attention:

  • Sealant applied over dusty or wet surfaces
  • Untidy sealant flagged on a snagging list
  • Internal frame sealant that has split
  • Sealant work across a run of new homes

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

What to look for in a quote

  • How hidden problems are handled
  • What insurance they hold
  • Whether all the old sealant comes out first
  • What the quote includes, VAT included or not

10 questions to ask before booking

Aftercare tips

After the cure time, these simple habits help:

  • Check bath and shower seals every few months as the house settles
  • Avoid running a DIY bead over the old one
  • Clean sealant with mild detergent, not abrasives
  • Use the extractor fan every time you shower

Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.

Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.

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