Kent · England

New Build Mastic in Kearsney

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

  • Messy sealant that spoils new finishes
  • Shower seals failing in the first year or two
  • Cracks appearing as a new home settles

New build mastic near Kearsney

Why it’s worth doing now in Kearsney

Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. In an older home around Kearsney, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.

What you pay reflects the work, not guesswork. That’s why we ask about the job first and send you a clear quote before any work starts.

What you get with us

  • Tidy, careful work
  • Sealant colour chosen to suit
  • Approved under the ARBOMaster scheme
  • Homes, businesses and hotels

See what affects the cost or what customers say.

New build mastic in Kearsney

Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation since hurried prep is behind a lot of new-build failures. We work on windows & doors, skirting & floors and plot handovers, and the jobs we see most are gaps between new skirting and floors and shower seals failing in the first year or two.

In smaller places like Kearsney, 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.

A 12-month guarantee comes as standard.

Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles
Where
Kearsney (CT16, CT17)
Region
Kent
Cover
A year, on every job
Quotes
A clear price before work begins
Call
0345 464 0079
Last updated
26 October 2026

Joints and finishes in Kearsney homes

Kearsney is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

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

Kearsney is about 1 mile north-west of Dover, in Kent. Homes, rented property, offices and hotels in Kearsney is covered for new build mastic. Every job comes with our one-year guarantee. Our area takes in 922 places across Kent, from the larger towns to small villages. Our Chelmsford page covers work nearby.

Postcode districts we cover here for new build mastic: CT16 and CT17. If you need new build mastic at a property on Park Road, Lower Road and The Avenue or anywhere close by, we can help. We also cover Temple Ewell (1 mile north), River (1 mile south-east), Whitfield (1 mile north-east), Wolverton (1 mile west) and Dover (1 mile south-east). Within a short drive, we also cover Canterbury (12 miles north-west), Folkestone (6 miles south-west), Ramsgate (15 miles north-east), Deal (7 miles north-east), Hythe (10 miles south-west) and Walmer (7 miles north-east).

Near you in Kearsney

Locally, jobs take us to homes and businesses close to Royal Oak Cottage The Royal Oak Public House, Old Park Hill and Dover Christ Church Academy and the streets around them. Kearsney has its own railway station: Kearsney station. Nearby you’ll also find Crabble Corn Mill (0.7 miles south-east) and Dover Castle (2.7 miles south-east). Green spaces nearby include Dover Western Heights.

Map of Kearsney © OpenStreetMap contributors

Aftercare tips

So the new joints stay in good condition:

  • Watch for new gaps as the house dries out
  • Don’t wait for the house to settle if water is getting through
  • Keep water off fresh sealant until it has cured
  • Avoid scourers and strong chemicals on sealant

Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers.

Don’t let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you so report it promptly.

What sealant work can’t fix

Some problems need a builder, plumber or other trade rather than us:

  • Plumbing faults behind the sealant
  • Your warranty claim itself, which is between you and the builder
  • Cracked trays, tiles or worktops

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

Surfaces we seal

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

How it works

When we arrive, we start by going over the job with you. Surfaces next to the work are protected before we start. Most jobs take anything from a few hours to several days, depending on the number of plots. For a job in Kearsney, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.

  1. We look at why each joint failed, including any movement.
  2. Old sealant is cut out and the joints cleaned.
  3. Joints are dried and primed where the product calls for it.
  4. Baths are filled with water, then the new sealant is applied.
  5. The finished joints are checked and the cure times given.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Try not to wet indoor joints just before the visit
  • Let us know about parking restrictions

How to get a quote

Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.

Get a quick quote

Read more

When to call us in Kearsney

Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.

The most common problems we see are:

  • Smeared, uneven beads picked up at snagging
  • Second-fix sealing on new plots
  • Leaking shower tray seals in a new home
  • Gaps behind new kitchen upstands

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

What to look for in a quote

  • Whether all the old sealant comes out first
  • Which colour the sealant will be
  • How the joint is cleaned and prepared
  • Who turns up on the day

10 questions to ask before booking

DIY versus a professional finish

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Different surfaces, different methods

Skirting and floors

Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.

Plot handovers

We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing.

Questions from Kearsney

Is Kearsney within the area you cover?

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.

Is Kearsney in your area for new build mastic?

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

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.

Why does sealant fail so quickly in new builds?

It’s common, and there are normally two reasons: movement as the house dries and settles, and sealant laid onto dust without primer. A proper reseal deals with both.

Can landlords and businesses book you?

Yes, regularly. Several properties can be quoted together.

Who should fix failed sealant in a new build?

Your builder, if you are still in their snagging or warranty period. If that doesn’t work out, we are happy to quote and our work is guaranteed for a year.

Do you guarantee your work?

Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.

How much does new build mastic cost in Kearsney?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.

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