Kent · England
External & façade joints in Upton, Kent
Professional external mastic in and around Upton, with every bit of old sealant taken out first.
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
- Weeds or debris growing in open joints
About our external mastic in Upton
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. We work on render & cladding joints, copings & trims and joints between brick and frames, and people most often call us about water getting into walls through failed joints and joints pointed up with cement by mistake.
In and around Upton, older properties sit alongside newer ones, each with its own outside joints. 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.
- Where
- Upton (CT10, CT11, CT12)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation, and the area is left clean. A visit to Upton is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- 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.
How to prepare
- Mention any tricky access
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.
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Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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.
Landlords, agents and businesses in Upton
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Upton questions
Does living near the coast affect external mastic in Upton?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Broadstairs station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you work for hotels and businesses?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
What’s an expansion joint in brickwork?
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.
Do you work in Upton?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Upton.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.
What we cannot put right
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Structural movement, which needs a surveyor or engineer
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Façade panels
- Copings & trims
Why act early in Upton
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way. Homes in smaller places like Upton can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why us?
- Sealant colour chosen to suit
- 20+ years of sealant experience
- One-year guarantee on every job
- Homes, businesses and hotels
See what affects the cost and our reviews.
What the job involves on each surface
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant.
Upton buildings and the weather
Upton is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on movement joints and outside wall joints, especially on the side facing the sea. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Upton Junior School, larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Parish Church of St Peter the Apostle, an extension built onto an older house moves differently, and the joint between them takes the strain.
Upton is about 1 mile south-west of Broadstairs, in Kent. From the centre of Upton to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Upton is one of 922 places in Kent we cover for external mastic. You can also see our page for Chelmsford, about 48 miles away.
Every address in CT10, CT11 and CT12 is covered for external mastic, from the main roads to the quietest streets. Local streets include Vale Road, Lawn Road and Upton Road, all of which we cover. Upton sits on or near the A255, so getting to you is simple. If you are just outside Upton, we cover Broadstairs (1 mile north-east), St Peter's (1 mile north-west), Northwood (1 mile west), Ramsgate (1 mile south-west) and St Lawrence (2 miles south-west). Within a short drive, we also cover Deal (10 miles south), Herne Bay (13 miles west), Walmer (11 miles south), Whitfield (15 miles south), Sandwich (7 miles south-west) and Aylesham (13 miles south-west).
Landmarks near Upton
In Upton, that means homes and buildings near The Charles Dickens School, The Charles Dickens School and The Little Albion Inn and the streets around them. Upton has its own railway station: Broadstairs station. Well-known places in the area include Westwood Cross (1.2 miles west) and Crampton Tower (under half a mile east). Green spaces nearby include Sandwich and Pegwell Bay.
Places near Upton
More services for Upton
Common problems we fix in Upton
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Signs it’s time to call us include:
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
Letting a property close to Broadstairs station? Then split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- Whether the sealant suits the joint
- What happens if the job turns out different
- What the cure time is
- The length of the guarantee