Kent · England
External & façade joints in Hollow Street, Kent
Sealing brickwork movement joints, render, cladding and façade joints in Hollow Street, with a 12-month guarantee on every job. Ask us for a quote.
- Panel joints letting water in
- Moss and dirt in joints with no sealant left
- Joints where the bead has come unstuck
Walls and rooflines in Hollow Street
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.
Letting a property close to Sturry station? Then split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Chislet Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Hollow Street is about 3 miles south-east of Herne Bay, in Kent. Whether you’re in the middle of Hollow Street or further out, external mastic is available for homes and businesses alike. Hollow Street is one of 922 towns and villages in Kent where we work for external mastic. We also work in Chelmsford, around 41 miles away.
We cover every part of the CT3 postcode area for external mastic and the streets around it. If you are just outside Hollow Street, we cover Chislet (1 mile north-east), Chitty (1 mile north-east), Old Tree (1 mile north-west), Boyden Gate (1 mile north) and Hoath (1 mile west). We also work in nearby towns such as Canterbury (6 miles south-west), Margate (9 miles east), Dover (14 miles south), Ramsgate (10 miles east), Broadstairs (11 miles east) and Whitstable (7 miles west).
Around Hollow Street
Typical jobs here are in homes near Grove Ferry Picnic Area and Spires Academy, among other places. For rail, the closest station is Sturry station, roughly 3.6 miles south-west. A little further out are St Martins Hospital (5.1 miles south-west). Not far away are West Blean and Thornden Woods.
External mastic in Hollow Street
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. We work on brickwork movement joints, concrete & block and façade panels, and people most often call us about weathered mastic that no longer stretches and rigid filler in a joint that should flex.
Older homes in small places like Hollow Street may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Place
- Hollow Street (CT3)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Cracks in the bricks or render themselves, away from the joints
- Adding movement joints to masonry that has none
- 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 before you book.
Surfaces we seal
- Concrete & block
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
How the visit works
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Hollow Street, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires 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
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
Related advice
Common questions in Hollow Street
Can you do external mastic in Hollow Street?
Yes, Hollow Street is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
I let a flat near Sturry station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. We’ll reseal it with a flexible sealant.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
How much does external mastic cost in Hollow Street?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Is the work guaranteed?
Yes. Each job is guaranteed for twelve months.
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it. Send us any details you have about the façade.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so the movement is taken up.
What else we do in Hollow Street
What affects the quote in Hollow Street
Call for a quick quote. The main things that affect it are:
- Whether the work is at height
- The number and length of the joints
- Which sealant suits the joint
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
To help us quote quickly, let us know:
- The type of property
- Pictures of the joints, sent by email
- If someone has resealed it before
- What’s wrong with the joints now
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Older cottages and farmhouses around Hollow Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why Hollow Street customers choose us
- We leave the area clean and tidy
- You choose the colour before work begins
- One-year guarantee on every job
- Fully insured
Signs you need external mastic in Hollow Street
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint.
Any of these means the joints need attention:
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
- Failed seals between different materials
- Failed sealant between panels on a façade
For an older house near a landmark such as Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- Whether you can choose the colour
- How much experience the applicator has
- How long the guarantee is
- What insurance they hold
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.