Kent · England

Window & door mastic in Trottiscliffe, Kent

Window mastic for Trottiscliffe, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

  • Cold air getting in at the frame edge
  • Gaps left after new windows were fitted
  • Leaking joints at the ends of sills

Need window mastic in Trottiscliffe?

Keeping the joints in good condition

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

  • Keep solvents and bleach off the sealant
  • Clean frames with a soft cloth and soapy water
  • Paint up to the joint, not over it
  • Air rooms to keep condensation down around windows

Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just ring 0345 464 0079 or email us.

Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.

Window mastic for homes and businesses in Trottiscliffe

Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Common call-outs are for cracked internal joints between frame and plaster and untidy mastic left by window fitters, on patio & French doors, timber windows & doors and composite doors.

In a village or hamlet like Trottiscliffe, 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.

We stand behind the work with a 12-month guarantee.

Place
Trottiscliffe (ME19)
Region
Kent
Guarantee
12 months on all our work
Price
A clear price before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

What affects the cost of window mastic

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

  • When we can work, for business premises
  • Any mould that needs treating
  • The number of rooms or windows
  • The type of sealant required

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.

What to tell us for a quote

You do not need to know the technical terms. It helps if you can tell us:

  • What’s wrong with the joints now
  • The address or postcode of the job
  • Whether it has been sealed before
  • Roughly how big the job is

Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details, and photos are welcome.

Work for landlords, hotels and businesses

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.

We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.

How the visit works

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of frames, longer for a whole house, and the area is left clean. Somewhere as small as Trottiscliffe, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we look at every frame and agree the list.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Deep gaps are filled with backing rod to set the depth.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Finally we tidy up and check each joint.

Preparing for the visit

  • For indoor joints, keep the area dry beforehand if you can
  • Let us know if you’ve seen damp or leaks
  • Move anything stored near the joints

Get a quote

Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Advice

Leave it or put it right?

If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Where a wall is exposed, as many are in small places like Trottiscliffe, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.

Why us?

  • A choice of colours where the product allows
  • We agree the colour with you first
  • Tidy, careful work
  • Homes, businesses and hotels

Take a look at how sealant jobs are priced or customer reviews.

Your questions about window mastic in Trottiscliffe

Can you help a landlord with a rental near Borough Green & Wrotham station?

Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.

Is Trottiscliffe in your area for window mastic?

Yes, Trottiscliffe is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.

Are you ARBOMaster approved?

Yes. We are approved under the ARBOMaster scheme.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Does the work come with a guarantee?

Yes. Our 12-month guarantee covers every job, inside or out.

Can new window sealant be painted?

Most silicone cannot be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.

Can you do upstairs windows?

Yes, where it’s safe. For high or awkward windows, we will tell you what access is needed.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Frames and glazing around Trottiscliffe

With historic houses such as Old Soar Manor (about 4 miles south) nearby, there’s older building stock in the area around Trottiscliffe 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. 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.

For landlords with property near Borough Green & Wrotham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Church of St Peter and St Paul, the joint between an old wall and a newer frame is usually the first place rain gets in.

Trottiscliffe is about 8 miles east of Sevenoaks, in Kent. Trottiscliffe gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Trottiscliffe is one of 922 towns and villages in Kent where we work. We also work in London, around 23 miles away.

We cover every part of the ME19 postcode area for window mastic and the streets around it. Local streets include Church Lane, School Lane and Wrotham Water Lane. Neighbouring places we cover for window mastic include Vigo Village (1 mile north), Fairseat (1 mile north-west), Addington (1 mile south-east), Culverstone Green (2 miles north) and Ryarsh (2 miles east). Further out, we also cover Maidstone (8 miles south-east), Dartford (10 miles north-west), Sevenoaks (8 miles west), Royal Tunbridge Wells (13 miles south), Gravesend (8 miles north) and Tonbridge (9 miles south).

Landmarks near Trottiscliffe

We work in homes and buildings around Wrotham School, Trosley Country Park and The Plough Public House, among other places. For rail, the closest station is Borough Green & Wrotham station, roughly 2.7 miles south-west. Well-known places in the area include Leybourne Castle (3 miles east) and Coldrum Long Barrow (0.8 miles east).

Map of Trottiscliffe © OpenStreetMap contributors

Common problems we fix in Trottiscliffe

Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.

If you can see any of these, it’s time to have the joints looked at:

  • Rain getting in at the frame or under the sill
  • Sealant in the wrong colour for the frame
  • Draughty joints inside around the window
  • Hard, cracked sealant around windows

For site and facilities teams at buildings such as Trottiscliffe Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.

What your quote should include

  • Are they insured?
  • What the cure time is
  • How much experience the applicator has
  • How the colour is chosen

10 questions to ask before you book

What the job involves on each surface

Patio & French doors

Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.

Aluminium frames

Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.

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