Kent · England

Window & door mastic in Charcott, Kent

Window and door frames in Charcott need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.

  • Rushed sealant from a window installation
  • Leaking joints at the ends of sills
  • Water coming in at the bottom corners of a door

Window mastic near Charcott

Window mastic in Charcott, done properly

Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you have a bead that doesn’t match the frame and untidy mastic left by window fitters, we can put it right, on composite doors, timber windows & doors and patio & French doors alike.

In a village or hamlet like Charcott, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

The work is covered for a year after we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.

Place
Charcott (TN11)
Region
Kent
Cover
12 months on all our work
Quote
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

How we quote for window mastic

You’ll get a clear quote before any work starts. It’s based on:

  • Access and height
  • How many rooms, windows or areas are involved
  • Whether old sealant or filler has to be cut out
  • 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 play a part, and we’ll explain the quote if you ask.

What to tell us for a quote

When you call or email, these details help:

  • The problem you’ve noticed
  • Pictures of the joints, sent by email
  • The type of property
  • The rough size of the job

Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

Can I do it myself?

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 fails, we can still redo it.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

What happens on the day

All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes most of a day for a typical house, less for a few frames. For a village or hamlet like Charcott, the journey is planned in advance: 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. We start by checking each window and door with you.
  2. The old mastic is cut out and the surfaces cleaned back.
  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. We clear up and check every joint is fully closed.

Getting ready for the visit

  • Keep children and pets away from the work area
  • Let us know about parking restrictions
  • Try not to wet indoor joints just before the visit

Getting a quote

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.

Ask for a quote

Advice

Charcott: your questions answered

I let a flat near Penshurst station. Can you help?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.

Do you cover Charcott for window mastic?

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

Do you work for hotels and businesses?

Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.

Can you quote for more than one area?

Yes. Tell us about everything you’d like done and you’ll get one quote.

Is it worth trying it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Can you seal over the old sealant?

No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.

Can I paint over the new sealant?

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

Will resealing my frames help with draughts?

Yes, if the air is getting in around the frame. If it’s coming through the window seals, we will tell you.

Work for landlords, hotels and businesses

Hotels need rooms back in use, 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.

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

What we cannot put right

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

  • Broken hinges, locks or handles
  • Rotten timber, which needs a joiner first
  • A door that needs adjusting, rehanging or new seals

If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.

Joints and surfaces we work on

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

Different surfaces, different methods

Window sills

The end joints of a sill tend to fail before the rest. We reseal them so rain can’t run into the wall.

Aluminium frames

Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.

Looking after it afterwards

A little care helps the new joints last. We recommend:

  • Paint up to the joint, not over it
  • Ventilate rooms so frames do not stay wet inside
  • Keep solvents and bleach off the sealant
  • Clear any debris from frame drain holes

Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just call 0345 464 0079 or email us.

Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.

Windows and doors in Charcott

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. Historic houses like Chiddingstone Castle (about 1.9 miles south-west) are a reminder that the area around Charcott has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

For an older house near a landmark such as Church of St Luke, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Penshurst station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Charcott is about 4 miles west of Tonbridge, in Kent. We provide window mastic to homes and businesses in Charcott. Charcott is one of 922 places in Kent we cover for window mastic. We also work in Crawley, about 17 miles from Charcott.

All of TN11 is within our area for window mastic, from the main roads to the quietest streets. Neighbouring places we cover for window mastic include Hall's Green (1 mile north), Woodhatch (2 miles north-east), Bough Beech (2 miles west), Sevenoaks Weald (2 miles north) and Goathurst Common (4 miles north-west). Further out, we also cover Sevenoaks (5 miles north), Royal Tunbridge Wells (6 miles south-east), Tonbridge (4 miles east), Swanley (13 miles north), Kings Hill (11 miles north-east) and Paddock Wood (9 miles east).

Local landmarks in Charcott

In Charcott, that means homes and buildings near Chiddingstone Castle Park and Gardens and The Greyhound pub. Charcott’s nearest station is Penshurst station, about 0.5 miles south-west. Well-known places in the area include Chiddingstone Castle (1.9 miles south-west) and Tonbridge Cottage Hospital (4.5 miles south-east). Open spaces near Charcott include Barden Lake.

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