Kent · England

Window Mastic in Lyminge

Problem with your window and door frames in Lyminge? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Rushed sealant from a window installation
  • Cracked internal joints between frame and plaster
  • Hard, cracked sealant around windows

Window mastic near Lyminge

Window mastic for homes and businesses in Lyminge

Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on uPVC windows, composite doors and aluminium frames, and the jobs we see most are damp patches on the reveal after heavy rain and white mastic on grey or black frames.

Somewhere as small as Lyminge, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Where
Lyminge (CT18)
Wider area
Kent
Cover
A year, on every job
Quotes
A clear price before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Common problems we fix in Lyminge

Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.

Any of these means the joints need attention:

  • Gaps left after new windows were fitted
  • Gaps where the sill meets the wall
  • White mastic on grey or black frames
  • Mastic that’s falling out in pieces

If you let a flat or house near Sandling station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Questions to ask before you book

  • How the joint is cleaned and prepared
  • What happens if they find a problem under the old sealant
  • How long to leave it before use
  • What insurance they hold

How to choose a mastic man

What affects the cost of window mastic

Some jobs are bigger than they look, and some smaller. The main factors:

  • Whether old sealant or filler has to be cut out
  • Any mould that needs treating
  • Access and height
  • When we can work, for business premises

What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.

Helping us quote

To make quoting easier, please include:

  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the job is, and your postcode
  • The type of property
  • How we’d reach the joints

Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand.

What happens if it’s left?

Getting a straight, even bead on an outside frame takes practice, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Older cottages and farmhouses around Lyminge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.

Why book with us

  • 12-month guarantee on every job
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Full insurance on every job
  • Any old sealant cut out fully, not covered over

See how sealant jobs are priced or our reviews.

When it isn’t the sealant

We’ll always be straight with you, so here’s what new sealant won’t do:

  • Worn gaskets, brush seals or a door that has dropped
  • A frame that has rotted at the joint
  • Penetrating damp from a failed cavity tray or render

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

Surfaces we seal

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

How the visit works

Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes most of a day for a typical house, less for a few frames. Somewhere like Lyminge needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First, we go round the frames with you and agree the list.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. We tool each bead neatly and check every joint is closed.

Before we arrive

  • Tell us about any previous sealing or DIY attempts
  • Keep pets and children clear of the area while we work
  • For indoor joints, keep the area dry beforehand if you can

Get a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or drop us an email.

Get a quick quote

Advice

Windows and doors in Lyminge

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Acrise Place (about 2.1 miles east) nearby, there’s older building stock in the area around Lyminge as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

Managing a site like Lyminge Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Acrise Place, about 2.1 miles east, is one of the historic houses in the wider area around Lyminge.

Lyminge is about 4 miles north of Hythe, in Kent. Lyminge gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Kent coverage runs to 922 places, and Lyminge is one of them. Our Chelmsford page covers work nearby, about 49 miles away.

Here we cover the CT18 postcode area for window mastic. Whether your property is on Church Road, Station Road and Silverlands Road or anywhere close by, we can help. We also cover Ottinge (1 mile north-east), Woodland (1 mile west), Skeete (1 mile west), Etchinghill (1 mile south) and Rhodes Minnis (1 mile north-west). Larger places within reach include Ashford (10 miles west), Canterbury (10 miles north), Dover (9 miles east), Folkestone (5 miles south-east), Deal (15 miles north-east) and Hythe (4 miles south).

Around Lyminge

Lyminge’s nearest station is Sandling station, about 2.8 miles south of the centre. Well-known places in the area include Saltwood Castle (3.3 miles south) and Elham Valley Countryside Centre And Railway Museum (2.5 miles south-east). Green spaces nearby include Tolsford Hill.

Map of Lyminge © OpenStreetMap contributors

Lyminge questions

Do you cover smaller places like Lyminge?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Do you work for landlords with property near Sandling station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.

How many windows can you do in a day?

The work takes a few hours for a handful of frames, longer for a whole house. Access and the amount of old mastic make the biggest difference.

Do you have insurance?

Yes. We’re fully insured for every job we do.

Can new sealant go over the old?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.

How long should I leave it?

That depends on the sealant used, so follow the cure time we give you when we finish.

Do you remove the old sealant?

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

Can new window sealant be painted?

That depends on the product. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before we start.

Should I try it myself first?

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

Different surfaces, different methods

Composite doors

A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.

Window sills

Sills catch the water running down the glass, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.

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