Kent · England
External & façade joints in Sandhurst, Kent
Problem with your movement joints in Sandhurst? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Joints pointed up with cement by mistake
- Failed seals between different materials
- Leaking joints around cladding and façade panels
How we handle external mastic in Sandhurst
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. We work on copings & trims, brickwork movement joints and joints between brick and frames, and people most often call us about movement joints with cracked, split or missing sealant and panel joints letting water in.
Around Sandhurst, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Sandhurst (TN18)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Keep soil, plants and ivy away from the joints
- Tell anyone working on the walls about the movement joints
- Keep high-pressure jets off the joints
- Check external joints each spring
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
What the job involves on each surface
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two.
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
When something else is needed
To be straight with you, some problems need a different trade:
- Adding movement joints to masonry that has none
- Failed render or damaged cladding panels
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Façade panels
Why it’s worth doing now in Sandhurst
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Where a wall is exposed, as many are in small places like Sandhurst, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
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.
Why us?
- Old sealant always removed completely
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- Full insurance on every job
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. Somewhere as small as Sandhurst, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- 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.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
How to get a quote
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Read more
Outside joints around Sandhurst
With historic houses such as Great Dixter (about 2.4 miles south-east) nearby, there’s older building stock in the area around Sandhurst 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. 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.
For landlords with property near Robertsbridge station, split movement joints are easy to miss on a rental until damp shows inside. Schools such as Sandhurst Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near Mission Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Sandhurst is about 11 miles north of Hastings, in Kent. Anywhere in TN18, we can carry out external mastic at your property. Across Kent, we cover 922 places, and Sandhurst is one of them. For nearby work, see our Crawley page.
All of TN18 is covered for external mastic. If you need external mastic at a property on Bodiam Road, Poundfield Road and Queen Street or anywhere close by, our applicators can take on the job. If you are just outside Sandhurst, we cover Sandhurst Cross (1 mile south-west), Linkhill (1 mile east), Four Throws (2 miles north-west), Little Conghurst (2 miles north-west) and Bodiam (2 miles south-west). Within a short drive, we also cover Ashford (15 miles north-east), Royal Tunbridge Wells (15 miles north-west), Paddock Wood (13 miles north-west), Tenterden (6 miles north-east), Park Wood (15 miles north) and Staplehurst (10 miles north).
What’s near Sandhurst
Typical jobs here are in homes near Sentido pub and the streets around them. Sandhurst’s nearest station is Robertsbridge station, about 4.9 miles south-west. Other landmarks nearby include The C.M Booth Collection (3.5 miles north-east) and Benenden Hospital (4.8 miles north-east).
Nearby places to Sandhurst
Also in Sandhurst
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
FAQs for Sandhurst
Do you cover smaller places like Sandhurst?
Yes, Sandhurst is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Sandhurst for external mastic?
Yes. Our work covers London and the South East, and Sandhurst is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages to suit the site.
Are you insured?
Yes. Full insurance covers our work.
How long does the job take?
Most jobs take a few hours to a few days, depending on the length of joint and the access, including the preparation. Your quote will say how long we expect yours to take.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint cannot move, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
How do you reach high-level joints?
It depends on the building. Tell us the height, the number of joints and what’s below them and we’ll confirm how they can be reached safely.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.