Kent · England

Window & door mastic in Newchurch, Kent

Our applicators work in Newchurch on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.

  • Cracked sealant at the sill ends
  • Rushed sealant from a window installation
  • Whistling draughts around closed windows

Window mastic in Newchurch

Window mastic in Newchurch, done properly

Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. If you’re dealing with white mastic on grey or black frames and cold air getting in at the frame edge, we can put it right, whatever the surface.

In a village or hamlet like Newchurch, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.

Location
Newchurch (TN29)
Wider area
Kent
Cover
12 months on all our work
Quotes
A clear price before we start
Call
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Honest limits

Before you book, it’s worth knowing the limits too:

  • Draughts through the window seals rather than the frame
  • Soft or decayed wood in the frame
  • Damp problems in the wall away from the window

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

Where we work in Newchurch

  • Composite doors
  • Patio & French doors
  • Timber windows & doors
  • Aluminium frames
  • Window sills
  • uPVC windows

How we quote for window mastic

Every job gets its own quote. This is what makes a difference:

  • The type of sealant required
  • Working hours on commercial sites
  • The number of rooms or windows
  • Whether there’s mould to deal with

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.

What we need to know

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

  • Any previous sealing or DIY work
  • Access, such as stairs, a lift or height
  • A few pictures by email, if you can
  • Where the property is

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

Signs you need window mastic in Newchurch

Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.

The problems people usually mention when they call include:

  • Draughty joints inside around the window
  • Sealant in the wrong colour for the frame
  • Cracked sealant at the sill ends
  • Mastic that has split away from the wall

Homes close to Church of St Peter and St Paul include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What your quote should include

  • Who does the work, and how experienced they are
  • Whether all the old sealant comes out first
  • What happens if the job turns out different
  • How the joint is cleaned and prepared

How to choose a mastic man

What happens if it’s left?

Resealing frames is a short job: it takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. In a small place like Newchurch, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

Why book with us

  • Tidy, careful work
  • Experience in homes, commercial sites and hotels
  • We never seal over old sealant
  • Sealant colour chosen to suit

See our cost guide and what customers say.

What the job involves on each surface

Aluminium frames

Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.

Window sills

The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.

Questions from Newchurch

Can you help a landlord with a rental near Ham Street station?

Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.

Do you cover smaller places like Newchurch?

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.

Is the work guaranteed?

Yes, for 12 months. A yearly look at the joints helps them last.

Can you seal the gap between the frame and the plaster indoors?

Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.

Do you hold any approvals?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

Is the new sealant paintable?

Not normally, if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.

Can resealing stop a draught around my window?

In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.

Does someone need to be in?

If the work is inside, we need someone to let us in. After that, you can carry on with your day.

Window mastic in Newchurch: local notes

London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For landlords with property near Ham Street station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Newchurch is about 7 miles west of Hythe, in Kent. Across the TN29 area, our applicators can take on window mastic. Newchurch is one of 922 towns and villages in Kent where we work. For nearby work, see our Brighton page (48 miles or so).

Here we cover the TN29 postcode area for window mastic. Streets in the area include Links Close, Church View and Patchways, and we cover them all. Close by, we work in St Mary in the Marsh (2 miles south), Postling Green (3 miles north-east), Bonnington (3 miles north), Burmarsh (3 miles east) and St Mary's Bay (3 miles south-east). We also work in nearby towns such as Ashford (7 miles north), Folkestone (11 miles east), Hythe (7 miles east), Hawkinge (11 miles north-east), Tenterden (10 miles west) and Cheriton (10 miles east).

Near you in Newchurch

Typical jobs here are in homes near The Black Bull Public House and the streets around them. The nearest railway station is Ham Street station, about 3.6 miles north-west of the centre. A little further out are Romney 'castle' (3.8 miles south) and Brenzett Aeronautical Museum (3.8 miles south-west). Open spaces near Newchurch include Orlestone Forest.

Map of Newchurch © OpenStreetMap contributors

Looking after it afterwards

So the new joints stay in good condition:

  • Air rooms to keep condensation down around windows
  • Do not use solvent cleaners on the joint
  • Clean frames with a soft cloth and soapy water
  • Keep jet washers away from the mastic

A yearly look round the frames is enough. Small splits are simple to catch before they leak.

Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.

What happens on the day

On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes anything from an hour or two to a full day, depending on how many frames there are from start to finish. Somewhere like Newchurch needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Finally we tidy up and check each joint.

How to prepare

  • Tell us if parking is tricky
  • Tell us about access, such as stairs, a lift or high-level joints
  • Let us know if you’ve seen damp or leaks

Get a quote

Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job.

Ask for a quote

Related advice

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