Kent · England

Window Mastic in Mereworth

Mastic around window and door frames, sills and patio doors for homes and businesses in Mereworth and across Kent. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Whistling draughts around closed windows
  • Mastic that has split away from the wall
  • Old mastic that has gone black or come away

Need window mastic in Mereworth?

Mereworth questions

Do you cover smaller places like Mereworth?

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.

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

Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.

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

A handful of frames is a short visit. We confirm the timing with your quote.

Do you do commercial work?

Yes. Hotels, offices and other businesses use us.

Can you quote for more than one area?

Yes, we can. Several rooms, windows or areas can go on one quote.

What sealant do you use?

Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.

Will it make a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Will new mastic stop draughts?

Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.

Window mastic in Mereworth

Most frames have an outside joint and an inside one. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you are dealing with gaps where the sill meets the wall and black, perished sealant on frames, we can help.

Somewhere as small as Mereworth, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.

There’s a 12-month guarantee on every job, large or small.

Applicator reaching up to seal an external door frame on a sunny day
Place
Mereworth (ME18)
Wider area
Kent
Guarantee
12 months on all our work
Quotes
A clear price before work begins
Telephone
0345 464 0079
Updated
26 October 2026

What happens on the day

When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a morning for a couple of windows and a door. Somewhere as small as Mereworth, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check each frame and agree which ones need doing.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. Where gaps are deep, backing rod goes in first.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Finally we tidy up and check each joint.

Before we arrive

  • Mention any parking rules near the property
  • Tell us about access, such as stairs, a lift or high-level joints
  • Where the joints are inside, avoid wetting them before we arrive

Ask for a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or drop us an email.

Get a price

Read more

How we quote for window mastic

We quote each job individually. This is what makes a difference:

  • How many areas need sealing
  • Mould in or behind the old joints
  • Whether the work is at height
  • The type of sealant required

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 the work is at height. We take all of that into account in your quote.

What we need to know

When you contact us, it’s useful to know:

  • Roughly how big the job is
  • What the problem is, such as mould, gaps, leaks or cracking
  • Any access issues, like height or stairs
  • A few photos by email, if you can

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.

What the job involves on each surface

Patio & French doors

Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.

Timber windows & doors

On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.

When to call us in Mereworth

Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.

These are the problems we are asked about most:

  • Cracked internal joints between frame and plaster
  • Sealant in the wrong colour for the frame
  • Cold air getting in at the frame edge
  • Leaking joints at the ends of sills

If you let a flat or house near Wateringbury station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Questions to ask before booking

  • What happens if they find a problem under the old sealant
  • Whether all the old sealant comes out first
  • Are they insured?
  • Is VAT in the price?

Choosing a sealant specialist

What we can’t put right

A few problems are outside what sealant work can do:

  • Draughts through the window seals rather than the frame
  • A failed sealed unit that has misted up
  • A sash or casement that will not close properly

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

Where we work in Mereworth

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

Windows and doors in Mereworth

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. With historic houses such as Old Soar Manor (about 2.5 miles west) nearby, there’s older building stock in the area around Mereworth as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

Schools such as Mereworth Community Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as St Lawrence's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Mereworth is about 6 miles north-east of Tonbridge, in Kent. Wherever you are in the ME18 postcode area, our applicators can take on window mastic. Our Kent coverage runs to 922 places, Mereworth among them. You can also see our page for London, roughly 26 miles from Mereworth.

We cover every part of the ME18 postcode area for window mastic. Streets in the area include The Street, Butcher's Lane and Tonbridge Road. We also cover the places around Mereworth: Herne Pound (1 mile north), Kent Street (1 mile north), New Pound (1 mile north-west), Pizien Well (1 mile east) and West Peckham (1 mile south-west). Within a short drive, we also cover Maidstone (6 miles east), Dartford (14 miles north-west), Sevenoaks (8 miles west), Royal Tunbridge Wells (10 miles south-west), Gravesend (12 miles north) and Tonbridge (6 miles south-west).

Near you in Mereworth

We work in homes and buildings around The Queens Head Public House. The nearest railway station is Wateringbury station, about 2 miles east of the centre. A little further out are Maidstone Hospital (4.7 miles east) and Leybourne Castle (3.6 miles north-east).

Map of Mereworth © OpenStreetMap contributors

Why it’s worth doing now in Mereworth

Not every sealant suits a window. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Where a wall is exposed, as many are in small places like Mereworth, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear price before we start.

Why book with us

  • Rated 4.9 stars on Google
  • Quality sealants from Arbo and Everbuild
  • Over 20 years’ experience
  • Neat joints and a tidy finish

Take a look at our cost guide or what customers say.

Work for landlords, hotels and businesses

We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for.

For anyone letting property in or around Mereworth, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

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