Kent · England
External Mastic in Tenterden
Professional external mastic in and around Tenterden, with every bit of old sealant taken out first and a 12-month guarantee.
- Hard, crazed mastic that has stopped moving
- Joints pointed up with cement by mistake
- Cracked joints where brick meets render or frames
Your questions about external mastic in Tenterden
What guarantee comes with external mastic in Tenterden?
All our work, in Tenterden and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover smaller places like Tenterden?
Yes. Tenterden is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can tenants book the work?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Why is there a gap in my brick wall?
A vertical gap in a long brick wall is normally a movement joint. It gives the wall room to move and needs a flexible seal, not mortar.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Can you seal joints between render and window frames?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
About our external mastic in Tenterden
Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. If you’re dealing with movement joints with cracked, split or missing sealant and failed seals between different materials, we can help, on joints between brick and frames, brickwork movement joints and copings & trims alike.
Homes around Tenterden range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Tenterden (TN30)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What external mastic looks like in Tenterden
With historic houses such as Smallhythe Place (about 2.2 miles south) nearby, there’s older building stock in the area around Tenterden as well as newer homes. In older buildings, 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 site and facilities teams at buildings such as Tenterden Infant School, its movement joints, gutters and trims need looking after like any other building’s.
Tenterden is about 9 miles south-west of Ashford, in Kent. Our applicators cover external mastic for homes and businesses in Tenterden and the surrounding area. Tenterden is one of 922 towns and villages in Kent where we work. We also work in Crawley, about 38 miles from Tenterden.
Jobs for external mastic in TN30 works the same way as everywhere else we cover. Whether your property is on Golden Square, High Street and Station Road or anywhere close by, our applicators can take on the job. With the A28 and B2067 close by, Tenterden is simple for us to get to for external mastic. Nearby, we also carry out external mastic in Broad Tenterden (1 mile south), St Michaels (1 mile north), Strood (2 miles west), London Beach (2 miles north) and Parkgate (2 miles north-west). Within a short drive, we also cover Maidstone (15 miles north-west), Ashford (9 miles north-east), Paddock Wood (15 miles north-west), Bearsted (15 miles north), Park Wood (13 miles north-west) and Kennington (11 miles north-east).
What’s near Tenterden
Locally, jobs take us to homes and businesses close to Turners Field, The Vine Inn and Homewood School and Sixth Form Centre. A little further out are Tenterden and District Museum (under half a mile west) and Benenden Hospital (3.4 miles west).
Leave it or put it right?
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. Homes in smaller places like Tenterden can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
Why book with us
- Neat joints and a tidy finish
- Fully insured
- A 12-month guarantee on all work
- Colour agreed with you before we start
See our cost guide or what customers say.
What we are called out for in Tenterden
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
The problems people normally mention when they call include:
- Cracked joints where brick meets render or frames
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
- Sealant pulling away from one side of the joint
For an older house near a landmark such as Parish Church of St Mildred, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Before you book anyone
- Whether VAT is included
- How the joint is cleaned and prepared
- When the joint can take water or movement
- Which sealant they’ll use, and why
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Ask before painting over external sealant
- Point out the joints to other trades
- Never let anyone fill a movement joint with mortar
- Deal with leaking gutters that soak the joints below
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.
How the visit works
We keep the work tidy and contained to the joints we are treating, so you can get on with your day. The job generally takes a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Tenterden, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Let us know about parking restrictions
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Read more
What affects the quote in Tenterden
The price is agreed before any work begins. It takes into account:
- How much there is to do
- The number of rooms or windows
- Mould in or behind the old joints
- Which sealant suits the joint
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
What we need to know
To make quoting easier, please include:
- Whether it has been sealed before
- Where the property is
- A few photos by email, if you can
- The rough size of the job
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 email us.
Should I try it myself first?
If you are set on DIY, put the effort into 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.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Places near Tenterden
Other services in Tenterden
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.