Kent · England
External & façade joints in Sutton, Kent
External mastic across Sutton and nearby, with every bit of old sealant taken out first.
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
- Gaps where render, brick and frames meet
FAQs for Sutton
Will you come out to Sutton?
Yes. Sutton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does the coastal weather in Sutton affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
External mastic in Sutton
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. Typical jobs include weathered mastic that no longer stretches and cracked joints where brick meets render or frames, across brickwork movement joints, façade panels and joints between brick and frames.
In a village or hamlet like Sutton, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
Every job comes with a one-year guarantee, wherever you are in Kent.
- Place
- Sutton (CT15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on how much there is to do. Somewhere as small as Sutton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we are working on
How to get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Related advice
Aftercare tips
To keep the joints looking good and working properly:
- Make sure movement joints aren’t pointed over
- Walk round the building once a year and look at the joints
- Keep soil, plants and ivy away from the joints
- Fix overflowing gutters above sealed joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Do you need external mastic in Sutton?
Some movement joints have been pointed up with mortar by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Look out for any of the following:
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Panel joints letting water in
- Plants rooting in failed movement joints
For an older house near a landmark such as Church of St Peter and St Paul, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What your quote should include
- How long the guarantee is
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
- What preparation is included
How the job changes by surface
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it so the sealant is not too deep.
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.
When something else is needed
Sealant is not the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Failed render or damaged cladding panels
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Sutton
- Façade panels
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Copings & trims
Places near Sutton
Also in Sutton
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes 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.
Outside joints around Sutton
Sutton is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Martin Mill station, outside joints that have cracked can let damp into a rental, so check them between lets.
Sutton is about 3 miles south-west of Deal, in Kent. Across the CT15 area, our applicators can take on external mastic. We cover 922 towns and villages across Kent, from the larger towns to small villages. For nearby work, see our Chelmsford page.
Work in CT15 is quoted and booked the same way as anywhere else. Whether your property is on Vale Road and Church Hill or a nearby road, our applicators can take on the job. Nearby, we also carry out external mastic in East Studdal (1 mile west), Martin (1 mile south), Studdal (1 mile west), Ringwould (2 miles south-east) and West Langdon (2 miles south-west). Larger places within reach include Canterbury (13 miles north-west), Margate (13 miles north), Dover (4 miles south-west), Folkestone (11 miles south-west), Ramsgate (10 miles north) and Broadstairs (12 miles north).
Around Sutton
The nearest railway station is Martin Mill station, roughly 1.7 miles south of the centre. Well-known places in the area include Royal Victoria Hospital (4.9 miles south) and Kent Museum of the Moving Image (3.2 miles north-east).