Kent · England
External Mastic in Stodmarsh
External mastic for Stodmarsh, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Movement joints filled with mortar instead of sealant
- Plants rooting in failed movement joints
- Failed seals between different materials
About our external mastic in Stodmarsh
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. Typical jobs include joints with sealant missing in places and failed seals between different materials, on joints between brick and frames, copings & trims and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Stodmarsh is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Every job comes with our 12-month guarantee.
- Place
- Stodmarsh (CT3)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
Landlord and commercial work in Stodmarsh
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Stodmarsh, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Towns and villages near Stodmarsh
What else we do in Stodmarsh
What affects the quote in Stodmarsh
The quote reflects the job in front of us. We look at:
- Any mould that needs treating
- The number of rooms or windows
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
Before you ask for a quote, have a think about:
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- Any previous sealing or DIY work
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you are ready, ring 0345 464 0079 or send us an email.
Common questions in Stodmarsh
Is Stodmarsh within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do external mastic in Stodmarsh?
Yes, Stodmarsh is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Can you reach joints on upper floors?
It depends on the height and the site. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Walk round the building once a year and look at the joints
- Ask before painting over external sealant
- Get split or bare joints resealed while the damage is small
- Deal with leaking gutters that soak the joints below
Follow the cure time we give you before the joint is knocked or disturbed. 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. Earlier resealing means a smaller job and a better result.
How it works
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. In a small place like Stodmarsh, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Read more
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- Cracked brickwork or render that needs a builder or plasterer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Joints between brick and frames
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Façade panels
External mastic in Stodmarsh: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Goodnestone Park (about 4.4 miles south-east) are a reminder that the area around Stodmarsh has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Sturry station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. For an older house near a landmark such as Church of St Mary, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Stodmarsh is about 5 miles east of Canterbury, in Kent. From the centre of Stodmarsh to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Stodmarsh is one of 922 places in Kent we cover. Chelmsford is on our list too, about 43 miles from Stodmarsh.
Jobs for external mastic in CT3 is quoted and booked the same way as anywhere else. Nearby, we also carry out external mastic in Hersden (1 mile north-west), Westbere (2 miles west), Hollow Street (2 miles north), Hoath (2 miles north) and Chislet (3 miles north). Within a short drive, we also cover Canterbury (5 miles west), Margate (10 miles north-east), Dover (12 miles south-east), Folkestone (15 miles south), Ramsgate (10 miles east) and Broadstairs (12 miles east).
Around Stodmarsh
Typical jobs here are in homes near The Red Lion pub, Spires Academy and Grove Ferry Picnic Area. For rail, the closest station is Sturry station, about 2.6 miles west of the centre. A little further out are St Martins Hospital (3.6 miles south-west) and Canterbury Castle (4.9 miles west). The countryside around Stodmarsh includes West Blean and Thornden Woods.
Common problems we fix in Stodmarsh
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 these signs:
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
- Joints pointed up with cement by mistake
- Damp patches traced to an open external joint
Managing a site like Wickhambreaux Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- How long to leave it before use
- Is the old sealant removed completely?
- Whether VAT is included
- Whether you can choose the colour