Kent · England
Mowshurst External Mastic
We cover Mowshurst for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Brick movement joints where the sealant has split
- Rain getting behind render or cladding at a joint
- Old sealant gone brittle and cracked
How we handle external mastic in Mowshurst
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what’s needed to reach them safely. We work on render & cladding joints, façade panels and joints between brick and frames, and common reasons people get in touch are sealant that has lost its bond to the brick or render and weathered mastic that no longer stretches.
Around Mowshurst, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
Whatever the size of the job, you get the same 12-month guarantee.
- Place
- Mowshurst (TN8)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What affects the quote in Mowshurst
Jobs vary more than people expect. The main factors:
- Whether there’s mould to deal with
- Working hours on commercial sites
- How easy the joints are to reach
- The number and length of the joints
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What to tell us for a quote
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Where the property is
- Pictures of the joints, sent by email
- Whether it has been sealed before
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.
What we cannot put right
New sealant cannot fix everything, and we’ll tell you before work begins. It won’t solve:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Subsidence or other structural problems
- Cracking across the wall rather than at a joint
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Where we work in Mowshurst
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Façade panels
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. Somewhere as small as Mowshurst, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
Get a quote
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Walls and rooflines in Mowshurst
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Hever Castle (about 2.3 miles south-east) nearby, there’s older building stock in the area around Mowshurst as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you look after a building such as Edenbridge Primary School, its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near Church of St Peter and St Paul, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Mowshurst is about 7 miles north-east of East Grinstead, in Kent. Homes, rented property, offices and hotels in Mowshurst can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our Kent coverage runs to 922 places, and Mowshurst is one of them. For nearby work, see our Crawley page (13 miles or so).
All of TN8 is covered for external mastic, from the main roads to the quietest streets. Neighbouring places we cover for external mastic include Marlpit Hill (1 mile west), Edenbridge (1 mile south-west), Pootings (1 mile north), Four Elms (1 mile north-east) and Troy Town (1 mile west). Within a short drive, we also cover Sevenoaks (7 miles north-east), Royal Tunbridge Wells (10 miles south-east), Tonbridge (9 miles east), Swanley (14 miles north), Kings Hill (15 miles east) and Paddock Wood (14 miles east).
Around Mowshurst
Locally, jobs take us to homes and businesses close to The Swan pub. Mowshurst’s nearest station is Edenbridge station, about 0.6 miles west. Nearby you’ll also find Haxted Watermill Museum (2.3 miles south-west) and Hever Castle (2.3 miles south-east).
Do you need external mastic in Mowshurst?
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
Signs it’s time to call us include:
- Gaps where render, brick and frames meet
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Panel joints letting water in
Letting a property close to Edenbridge station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- What insurance they hold
- Is VAT in the price?
- How much experience the applicator has
- Whether all the old sealant comes out first
Work for landlords, hotels and businesses
If you manage several properties in or around Mowshurst, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
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.
Common questions in Mowshurst
Do you cover Mowshurst for external mastic?
Yes, Mowshurst is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
Can you help a landlord with a rental near Edenbridge station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Will the new joint stand out?
We choose a sealant colour to suit the brick, stone or render. There’s a wide choice of exterior colours.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
What does external mastic cost?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
Why it’s worth doing now in Mowshurst
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Mowshurst can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What you get with us
- A sealant colour to suit the surroundings
- Colour agreed with you before work begins
- Full insurance on every job
- Rated 4.9 stars on Google
See what affects the cost and what customers say.
Also near Mowshurst
Other services in Mowshurst
Different surfaces, different methods
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant where it can be done safely.
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.