Buckinghamshire · England
External & façade joints in Loudwater, Buckinghamshire
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Loudwater and across Buckinghamshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
- Gaps where render, brick and frames meet
External mastic in Loudwater
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. Typical jobs include moss and dirt in joints with no sealant left and rain getting behind render or cladding at a joint, on brickwork movement joints, joints between brick and frames and façade panels.
In and around Loudwater, older properties sit alongside newer ones, each with its own outside joints. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Place
- Loudwater (HP10, HP11)
- Region
- Buckinghamshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Render that’s blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
Where we work in Loudwater
- Copings & trims
- Façade panels
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
External mastic in Loudwater: local notes
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. Historic houses like Cliveden (about 3.5 miles south) are a reminder that the area around Loudwater has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Letting a property close to Bourne End station? Then split movement joints are easy to miss on a rental until damp shows inside. In the older streets around Church of St Peter, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Loudwater is about 2 miles west of Beaconsfield, in Buckinghamshire. Whether you are in the middle of Loudwater or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Buckinghamshire, we cover 263 places, and Loudwater is one of them. Our Reading page covers work nearby (16 miles or so).
All of HP10 and HP11 is within our area for external mastic. Local streets include London Road, Station Road and Loudwater Mill, and we cover them all. We also cover the places around Loudwater: Beacon Hill (2 miles north-east), Forty Green (2 miles east), Penn (2 miles north), Knotty Green (2 miles north-east) and Beaconsfield (2 miles east). Within a short drive, we also cover Aylesbury (15 miles north), High Wycombe (3 miles north-west), Chesham (8 miles north-east), Marlow (4 miles south-west), Amersham (6 miles north-east) and Chalfont St Peter (6 miles east).
What’s near Loudwater
We work in homes and buildings around Highcrest Academy and The Happy Union pub, among other places. For rail, the closest station is Bourne End station, about 2.2 miles south of the centre. Nearby you’ll also find Eden (2.8 miles north-west) and High Wycombe Castle (2.6 miles north-west). Green spaces nearby include Holtspur Bank.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Check the sealant is paintable before painting near it
- Keep soil, plants and ivy away from the joints
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Loudwater questions
Do you cover Loudwater for external mastic?
Yes, Loudwater is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you work for landlords with property near Bourne End station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Why do you put foam in the joint first?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. Then the sealant bonds to two faces and can move.
Are you insured?
Yes. We’re fully insured.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
Can you seal over the old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
How the job changes by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that is happened, we rake it out and reseal it properly where it can be done safely.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Do you need external mastic in Loudwater?
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
The most common problems we see are:
- Panel joints letting water in
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
Managing a site like Loudwater Combined School? Then its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- How long the guarantee is
- What the cure time is
- How the joint is cleaned and prepared
- Whether VAT is included
What happens on the day
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. A visit to Loudwater is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Mention if the joints have been sealed before
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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Why it’s worth doing now in Loudwater
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. Too stiff a sealant can pull at the edges and break them. In an older home around Loudwater, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Combining jobs into one visit normally makes better use of the time than several visits. We’ll give you a clear price for the lot.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
- Every job guaranteed for a year
Take a look at our cost guide or our reviews.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Loudwater and across Buckinghamshire. We can quote a run of properties together, and we’re fully insured.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.