Kent · England

Window & door mastic in Crouch, Kent

Mastic around window and door frames, sills and patio doors for Crouch, backed by a one-year guarantee. Call for a quick quote.

  • Rain getting in at the frame or under the sill
  • Mastic that is falling out in pieces
  • A bead that does not match the frame

Window mastic for Crouch homes and businesses

How we handle window mastic in Crouch

Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. We work on window sills, patio & French doors and aluminium frames, and common reasons people get in touch are black, perished sealant on frames and rushed sealant from a window installation.

Around Crouch, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.

Place
Crouch (TN15)
Wider area
Kent
Cover
A year, on every job
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Windows and doors in Crouch

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. Historic houses like Old Soar Manor (about 1 mile south) are a reminder that the area around Crouch has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Rented homes near Borough Green & Wrotham station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Crouch is about 6 miles east of Sevenoaks, in Kent. Jobs in Crouch get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Crouch is one of 922 places in Kent where we work for window mastic. There’s also a page for London, roughly 23 miles from Crouch.

We cover every part of the TN15 postcode area for window mastic. Streets in the area include Basted Lane and Long Mill Lane, and we cover them all. Neighbouring places we cover for window mastic include Claygate Cross (1 mile west), Basted (1 mile north-west), Platt (1 mile north-east), Comp (1 mile north-east) and Borough Green (1 mile north). We also work in nearby towns such as Maidstone (9 miles east), Dartford (12 miles north), Sevenoaks (6 miles west), Royal Tunbridge Wells (10 miles south), Gravesend (11 miles north) and Tonbridge (6 miles south).

Around Crouch

In Crouch, that means homes and buildings near Wrotham School, Ivy Hatch Nature Reserve and The Chequers Inn. For rail, the closest station is Borough Green & Wrotham station, roughly 1.2 miles north of the centre. Nearby you’ll also find Sevenoaks Hospital (5.3 miles west) and Ightham Court (1.8 miles north-west).

Map of Crouch © OpenStreetMap contributors

For landlords and businesses

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

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

Crouch questions

Do you cover Crouch for window mastic?

Yes. We work across London and the South East, and Crouch is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.

Do you work for landlords with property near Borough Green & Wrotham station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

Can you seal over the old sealant?

No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.

Will the old sealant be removed?

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

Will new mastic stop draughts?

Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.

How long before the joint can be used?

Cure times vary by product and the conditions. Before we leave, we will tell you the cure time.

Will there be a smell?

That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.

Signs you need window mastic in Crouch

Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.

Any of these means the joints need attention:

  • Rushed sealant from a window installation
  • Hard, cracked sealant around windows
  • Old mastic that has gone black or come away
  • Cracked sealant at the sill ends

Schools such as Borough Green Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

What your quote should include

  • What the quote includes, VAT included or not
  • What preparation is included
  • What happens if they find a problem under the old sealant
  • Whether they seal over old material or remove it

Choosing a sealant specialist

How the job changes by surface

Window sills

Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.

uPVC windows

Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.

Aftercare tips

Good habits help new joints last longer. A few tips:

  • Walk round the house once a year and look at the joints
  • Wipe condensation off the frames
  • Keep solvents and bleach off the sealant
  • Use gentle cleaners on frames and sealant

Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.

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. Any of these is worth a call.

Why act early in Crouch

A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Older cottages and farmhouses around Crouch can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why book with us

  • Any old sealant cut out fully, not covered over
  • Domestic, commercial and hotel work
  • You choose the colour before work begins
  • Colour picked to suit the job

Take a look at what affects the cost and what customers say.

When something else is needed

In fairness, some problems need a different trade:

  • Damp coming through the wall itself rather than the frame joint
  • A frame that has rotted at the joint
  • Condensation trapped between the panes

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

Surfaces we seal

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

What we do, step by step

There is not much for you to do on the day. Show us the job and we will 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, including the tidy-up. Somewhere like Crouch needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check each frame and agree which ones need doing.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Where gaps are deep, backing rod goes in first.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Finally we tidy up and check each joint.

How to prepare

  • Clear the area around the work
  • For business premises, tell us about site rules or sign-in
  • Let us know if you’ve seen damp or leaks

Get a quote

We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or drop us an email with the details.

Get a price

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