Kent · England

New-build mastic & snagging in Newington, Kent

Professional new build mastic in and around Newington, with old sealant always removed completely and a 12-month guarantee.

  • Plot mastic for developers ahead of handover
  • Sealant applied over dusty or wet surfaces
  • Skirting joints opening in the first winter

New build mastic in Newington

Common problems we fix in Newington

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

Keep an eye out for any of the following:

  • Plot mastic for developers ahead of handover
  • Cracked caulk along new skirting
  • Cracked sealant around new window and door frames
  • Shower seals failing in the first year or two

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

Before you book anyone

  • Whether they seal over old material or remove it
  • How the joint is cleaned and prepared
  • How hidden problems are handled
  • What the cure time is

Our hiring checklist

New build mastic in Newington, done properly

A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. Typical jobs include plot mastic for developers ahead of handover and cracked sealant around new window and door frames, on skirting & floors, windows & doors and show homes.

Where new homes go up in smaller places like Newington, it’s often a small development or a single plot. Each still needs its sealant and floor joints finished properly from day one.

All our work is covered by a one-year guarantee, wherever you are in Kent.

Place
Newington (ME9)
Wider area
Kent
Cover
12 months on all our work
Price
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

How the job changes by surface

Windows and doors

On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.

Kitchens

Beside the sink, the joint takes water every day. We use a sealant suited to kitchens, food-safe where it’s needed.

Newington: your questions answered

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

Yes, we work for landlords and agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.

Do you cover Newington for new build mastic?

Yes, Newington is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.

Is the work guaranteed?

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

Do you work for developers?

Yes. We work through plots to your schedule. Tell us the plots and the joints involved for a clear quote.

Are you an approved applicator?

Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.

What do you put in the joint?

Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.

Do the sealants smell?

There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses.

For landlords and businesses

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Aftercare tips

How long the joints last depends on use and care. Here’s what we suggest:

  • Resist patching a failed seal with a tube from the DIY shop
  • Keep pictures and emails about snagging items
  • Act quickly if a seal starts to leak
  • Raise failed sealant with the developer while you are covered

Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it, which can damage the surface.

The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.

Honest limits

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Leaks from pipes, valves or wastes, which need a plumber
  • Structural cracks in walls or ceilings
  • Broken tiles or a split tray

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

Joints and surfaces we work on

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

What happens on the day

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. Parking around Newington is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.

  1. Each joint is checked for movement before any work starts.
  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

  • Move anything stored near the joints
  • Mention any sign-in or site rules at work premises
  • Mention if the joints have been sealed before

Getting a quote

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.

Get a price

Advice

Why act early in Newington

A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. In a smaller place like Newington, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.

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

What you get with us

  • 4.9 on Google from 180+ five-star reviews
  • Colour picked to suit the job
  • Homes, businesses and hotels
  • Sanitary silicone with an anti-fungal additive in wet areas

Take a look at our cost guide or customer reviews.

New homes and floors in Newington

Newington is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

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

Newington is about 3 miles west of Sittingbourne, in Kent. For new build mastic in and around Newington, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Kent, Newington included. Newington is one of 922 towns and villages in Kent we cover. For nearby work, see our Chelmsford page (28 miles or so).

Postcode districts we cover here for new build mastic: ME9. Local streets include Station Road, High Street and London Road. Neighbouring places we cover for new build mastic include Breach (1 mile north-west), Keycol (1 mile east), Lower Hartlip (1 mile west), Danaway (1 mile south) and Chestnut Street (1 mile south-east). We also work in nearby towns such as Maidstone (8 miles south-west), Sittingbourne (3 miles east), Gravesend (14 miles north-west), Faversham (10 miles east), Northfleet (15 miles west) and Minster (7 miles north-east).

What’s near Newington

Locally, jobs take us to homes and businesses close to The Wheatsheaf pub and Leigh Academy Rainham and the streets around them. There’s a railway station in Newington itself: Newington station. Other landmarks nearby include Medway Maritime Hospital (5.7 miles west) and Bayford Court (3.4 miles east). Not far away are Bishop Saltings.

Map of Newington © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job