Kent · England

Bitchet Green Window Mastic

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

  • Mastic that has split away from the wall
  • Gaps left after new windows were fitted
  • Cold air getting in at the frame edge

Window mastic in Bitchet Green

What happens if it’s left?

A quick bead over the top of old mastic looks like an easy fix, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Where a wall is exposed, as many are in small places like Bitchet Green, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.

Why Bitchet Green customers choose us

  • Over 20 years’ experience
  • Experience in homes, commercial sites and hotels
  • We never seal over old sealant
  • Neat joints and a tidy finish

Read how sealant jobs are priced or customer reviews.

How we handle window mastic in Bitchet Green

Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before any work starts. Just phone 0345 464 0079 or email us and tell us how many frames there are and how they’re reached for window mastic in Bitchet Green. We work on aluminium frames, patio & French doors and uPVC windows, and common reasons people get in touch are black, perished sealant on frames and hard, cracked sealant around windows.

Homes in small places like Bitchet Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

Big or small, it’s backed by our 12-month guarantee.

Applicator reaching up to seal an external door frame on a sunny day
Place
Bitchet Green (TN15)
Wider area
Kent
Cover
12 months on all our work
Quotes
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026

What affects the cost of window mastic

The quote reflects the job in front of us. We take into account:

  • How easy the joints are to reach
  • The size of the job
  • Mould in or behind the old joints
  • The number of rooms or windows

A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

What to tell us for a quote

When you call or email, these details help:

  • Whether it’s a home or a business
  • Where the job is, and your postcode
  • What the problem is, such as mould, gaps, leaks or cracking
  • If someone has resealed it before

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and give you a clear price.

Signs you need window mastic in Bitchet Green

Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.

Keep an eye out for these signs:

  • Cracked sealant at the sill ends
  • Water coming in at the bottom corners of a door
  • Cold air getting in at the frame edge
  • Hard, cracked sealant around windows

If you live in an older home near St Lawrence, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Before you book anyone

  • The length of the guarantee
  • What the cure time is
  • Whether they’re fully insured
  • What preparation is included

Our hiring checklist

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Air rooms to keep condensation down around windows
  • Clear any debris from frame drain holes
  • Clean frames with a soft cloth and soapy water
  • Keep paint off silicone joints

Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.

Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.

What we do, step by step

Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Bitchet Green 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 confirm safe access to each frame.
  2. Old, cracked mastic is removed completely, along with any loose debris.
  3. The surfaces are cleaned and left dry, and primed where the sealant calls for it.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

Before we arrive

  • Mention any parking rules near the property
  • Clear the area around the work
  • Let us know about stairs, lifts or work at height

Get a quote

If you are in Bitchet Green and need window mastic, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.

Ask for a quote

Related advice

Surface by surface

Timber windows & doors

Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We can talk through the options.

uPVC windows

Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.

Landlords, agents and businesses in Bitchet Green

From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.

Bitchet Green questions

Will you come out to Bitchet Green?

Yes. Bitchet Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you cover Bitchet Green for window mastic?

Yes. Our work covers London and the South East, and Bitchet Green is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.

Do you work for hotels and businesses?

Yes. Hotels, offices and other businesses use us.

Are you insured?

Yes. We’re fully insured.

Do I have to be there?

That depends on where the joints are. Inside work needs someone to give us access.

Can you quote for more than one area?

Yes. Just list everything you need.

How long does it take to reseal the windows on a house?

Allow most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.

I’m a tenant. Can you help?

Of course. Check with your landlord; we can send the quote to them too.

Frames and glazing around Bitchet Green

With historic houses such as Ightham Mote (about 1 mile south-east) nearby, there’s older building stock in the area around Bitchet Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Letting a property close to Kemsing station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you look after a building such as St Lawrence Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.

Bitchet Green is about 3 miles south-east of Sevenoaks, in Kent. From the centre of Bitchet Green to the outskirts, window mastic is available for homes and businesses alike. Our area takes in 922 places across Kent, from the larger towns to small villages. We also work in London, around 22 miles away.

Here we cover the TN15 postcode area for window mastic. We also cover the places around Bitchet Green: Stone Street (1 mile north-east), Godden Green (1 mile north-west), Ivy Hatch (1 mile east), Budds (1 mile south) and Underriver (1 mile south-west). Larger places within reach include Maidstone (12 miles east), Dartford (12 miles north), Sevenoaks (3 miles north-west), Royal Tunbridge Wells (9 miles south), Gravesend (13 miles north-east) and Tonbridge (5 miles south).

Near you in Bitchet Green

In Bitchet Green, that means homes and buildings near Sevenoaks Preparatory School and Ivy Hatch Nature Reserve. Bitchet Green’s nearest station is Kemsing station, about 2.2 miles north of the centre. Nearby you will also find Sevenoaks Museum (2.3 miles west) and Sevenoaks Hospital (2.8 miles north-west). Not far away are Dryhill Nature Reserve and Barden Lake.

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