Kent · England

Window & door mastic in Fairbourne Heath, Kent

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

  • Damp patches on the reveal after heavy rain
  • Cracked sealant at the sill ends
  • White mastic on grey or black frames

Book window mastic in Fairbourne Heath

Frames and glazing around Fairbourne Heath

With historic houses such as Leeds Castle (about 2.3 miles north-west) nearby, there’s older building stock in the area around Fairbourne Heath as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you live in an older home near All Saints Church, the joint between an old wall and a newer frame is generally the first place rain gets in. Rented homes near Harrietsham station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.

Fairbourne Heath is about 7 miles south-east of Maidstone, in Kent. Whether you are in the middle of Fairbourne Heath or further out, window mastic is available for homes and businesses alike. Fairbourne Heath is one of 922 places in Kent where we work. We also work in Chelmsford, about 36 miles from Fairbourne Heath.

Every address in ME17 is within our area for window mastic, from the main roads to the quietest streets. You’ll find streets such as Lenham Road and Windmill Hill, and we cover them all. If you’re just outside Fairbourne Heath, we cover Liverton Street (1 mile east), Ulcombe (1 mile south-west), Platt's Heath (1 mile east), Pollhill (1 mile north) and Grafty Green (1 mile south-east). Larger places within reach include Maidstone (7 miles north-west), Ashford (11 miles south-east), Sittingbourne (9 miles north), Faversham (12 miles north-east), Minster (15 miles north-east) and Kings Hill (12 miles west).

Around Fairbourne Heath

We work in homes and buildings around The Lenham School and Kiln Wood and the streets around them. For rail, the closest station is Harrietsham station, roughly 1.6 miles north of the centre. Nearby you’ll also find Coldbridge Castle (2.2 miles south-east) and The Dog Collar Museum (2.2 miles north-west).

Map of Fairbourne Heath © OpenStreetMap contributors

Window mastic for homes and businesses in Fairbourne Heath

A window frame and the wall around it expand and shrink at different rates. 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. If you have a bead that doesn’t match the frame and rain getting in at the frame or under the sill, we can put it right.

In a village or hamlet like Fairbourne Heath, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.

The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Where
Fairbourne Heath (ME17)
Wider area
Kent
Cover
A year, on every job
Quote
A clear price before work begins
Call
0345 464 0079
Updated
26 October 2026

Should I try it myself first?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

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 doesn’t work out, we can still put it right.

What we do, step by step

On the day, we look over the joints with you first. Surfaces next to the work are protected before work begins. The work normally takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as Fairbourne Heath, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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. The joint is shaped to shed water and the area tidied.

How to prepare

  • Clear the area around the work
  • Plan for the work area to be out of bounds to pets and children
  • Let us know about parking restrictions

Getting a quote

To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll send you a clear quote before any work starts.

Get a quick quote

Related advice

When to call us in Fairbourne Heath

Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.

The problems people normally mention when they call are:

  • Rushed sealant from a window installation
  • Cold air getting in at the frame edge
  • Sealant in the wrong colour for the frame
  • Mastic that has split away from the wall

Schools such as Platts Heath Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Comparing quotes

  • How much experience the applicator has
  • Whether VAT is included
  • Whether all the old sealant comes out first
  • What happens if they find a problem under the old sealant

Our hiring checklist

What the job involves on each surface

Composite doors

Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We will tell you if that’s what we find.

Patio & French doors

Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.

FAQs for Fairbourne Heath

Will you come out to Fairbourne Heath?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is Fairbourne Heath in your area for window mastic?

Yes. We work across London and the South East, and Fairbourne Heath is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.

Do you do commercial work?

Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.

Is the new sealant paintable?

It depends on the sealant. Silicone is not paintable, but some hybrid sealants are. Tell us if you are decorating and we’ll choose accordingly.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.

Can you seal over the old sealant?

No, because it fails. We remove every bit of old sealant first.

Where are you based?

We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Are you insured?

Yes. We are fully insured.

What affects the cost of window mastic

There’s no set price list. The quote depends on:

  • Which sealant suits the joint
  • The number and length of the joints
  • Whether the work is at height
  • How many rooms, windows or areas are involved

What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.

What we need to know

Photos help, but a description is a good start. Try to tell us:

  • The problem you’ve noticed
  • Whether it has been sealed before
  • Where the property is
  • Pictures of the joints, sent by email

For window mastic in Fairbourne Heath, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

How to look after the new joints

Good habits help new joints last longer. Our tips:

  • Avoid blasting the frames with a pressure washer
  • Walk round the house once a year and look at the joints
  • Air rooms to keep condensation down around windows
  • Keep paint off silicone joints

Silicone can’t normally be painted, so mention any painting plans before we start. We can use a paintable sealant where that matters.

A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.

Work for landlords, hotels and businesses

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

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