Expansion Joint Sealing in Four Throws
Expansion and movement joint sealing in walls, decks and floors across Four Throws, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Arrises breaking up along floor joints
- New sealant over old, now failing
- Damp inside where a wall movement joint has failed
Need expansion joint sealing in Four Throws?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Traffic, movement and joints around Four Throws
Four Throws sits in one of the drier corners of the country, the South East. External slab and deck joints still need a dry, clean joint to seal, and gritting in cold spells finds its way into open joints. Four Throws lies roughly 42 miles out from central London. The South East has large numbers of industrial estates and warehouses along the motorway corridors.
Office parks like Hawkhurst Station Business Park (to the north-west of Four Throws) have decks, ramps and clad elevations whose joints take movement every day. Schools such as Hawkhurst Church of England Primary School have movement joints in their walls and floors that are easy to overlook.
Four Throws is about 12 miles north of Hastings, in Kent. Across the TN18 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 931 places across Kent fall within our area, including Four Throws. For work in that direction, see our Brighton page, about 32 miles away.
Anyone looking for expansion joint sealing in TN18 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Rye Road, Foxhole Lane and Conghurst Lane, and sites on any of them can send details for a fixed quote. If your building is just outside Four Throws, we cover Little Conghurst (1 mile south-west), Pipsden (1 mile north-west), Hawkhurst (1 mile north-west), The Moor (1 mile west) and Sandhurst Cross (1 mile south-east). Nearby towns on our patch include Royal Tunbridge Wells (13 miles north-west), Paddock Wood (11 miles north-west), Tenterden (7 miles east), Southborough (14 miles north-west), Park Wood (14 miles north) and Staplehurst (9 miles north).
What’s near Four Throws
In Four Throws, that means premises near Oak And Ivy Public House and Collingwood Nature Reserve, among other places. The nearest railway station is Etchingham station, about 4.5 miles south-west. Nearby you’ll also find Benenden Hospital (4.9 miles north-east).
About our expansion joint sealing in Four Throws
Mastic Doctor has sealed movement joints since 2005, for main contractors, FMs, managing agents and building owners. CHAS accredited, Constructionline member, CSCS-carded applicators and five million pounds of public liability insurance. Workmanship is backed by our 12-month guarantee. Site teams most often ask us about joints packed with grit and debris and joints where the bead has lost adhesion, across podiums and floor movement joints, cladding panel joints and brickwork movement joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Four Throws, preparation and product choice get the time they need.
For a site near Four Throws, measurements and photographs up front mean one trip where possible. Tell us the joint widths if you can, and what drives or walks over them.
Work we carry out in Kent comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or email us and we’ll come back to it.
- Location
- Four Throws (TN18)
- Region
- Kent
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Towns and villages near Four Throws
Other services in Four Throws
Signs you need expansion joint sealing in Four Throws
Three-sided adhesion is a common cause of early failure. Bonded on three faces, it can’t stretch evenly when the joint opens so backing is set before sealing.
These are often picked up first by site or facilities staff:
- Joints packed with grit and debris
- Layers of sealant in a movement joint
- Expansion joints split through the centre of the bead
- Chipped joint edges on forklift routes
Hospital campuses such as Hawkhurst Community Hospital (to the west of Four Throws) grow in stages, leaving movement joints wherever new blocks meet old.
Questions to ask before you book
- The terms of the workmanship guarantee
- How they handle RAMS and site documents
- Which product they’ll use, and why it suits the joint
- Whether their applicators hold CSCS cards
Surface by surface
Joints between different materials
Hybrid or MS polymer sealants bond to many substrates. The choice depends on the substrates and how much the joint moves, and confirm it in the quote.
Brickwork and blockwork joints
Mortar snots and debris in the joint stop it working. Everything is raked out before backing and sealant go in.
What we can’t put right
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- Changing the joint layout or spacing of a structure
- Concrete or masonry repairs along the arrises
If in doubt, call 01277 525 020 or email us and we’ll say what we think.
Where we work in Four Throws
- Precast concrete panel joints
- Blockwork control joints
- Podiums and floor movement joints
- Car park decks and ramps
- Brickwork movement joints
- Cladding panel joints
Why act early in Four Throws
A like-for-like reseal of a joint that keeps splitting rarely lasts. If the joint is too narrow or the product wrong for the movement, it needs a different approach and we will tell you honestly. Converted and older buildings near places like Four Throws tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
There’s no price list, because the scope varies so much from one building to the next. Call for a quote.
What you get with us
- Joints cleaned back to sound surfaces
- 12-month guarantee on workmanship
- Products installed to the manufacturer’s instructions
- Commercial sealant work since 2005
See how commercial sealant jobs are priced and how we’re accredited.
Questions we are asked in Four Throws
Is hospital work, at somewhere like Hawkhurst Community Hospital, something you do?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Four Throws too far out for you?
Not at all. Four Throws is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Do your applicators hold CSCS cards?
Yes. We use CSCS-carded applicators, as many construction sites ask for.
Do you use silicone or polyurethane in movement joints?
The specification comes first, then the joint’s movement and exposure. We name the proposed product in the quote so there are no surprises.
What guarantee do you give on joint sealing?
The workmanship is guaranteed for 12 months from sign-off and we hold public liability insurance. Keeping joints clear of debris helps them last.
Do you need to see the site first?
That depends on the size and complexity of the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.
From enquiry to sign-off
Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For work around Four Throws, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- We start with photographs, approximate lengths and any drawings, visiting where needed.
- We compare each joint’s width with the movement and the sealant’s capability.
- Old sealant and debris are cut out of every joint.
- Edges are checked, and we tell you if any need repairing before sealing.
- A sealant suited to the movement and traffic is laid to depth and tooled.
- Each area is handed back after its cure time, under our 12-month guarantee.
Getting the site ready
- Point out parking and an unloading spot
- For older buildings, check the asbestos register before work
- Send your site hours and access windows
Ask for a quote
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or call the office on 01277 525 020 or email us if you’d rather talk the job through.
Related advice
Maintenance after handover
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Put movement joints on the planned maintenance inspection round
- Look over external and deck joints after a hard winter
- Sweep decks, ramps and floors so grit doesn’t collect in the joints
- Keep traffic off new joints until the cure time is up
Keep wheels, feet and water off new joints until the sealant has cured. The time varies with product, conditions and joint depth, and we confirm it for each area before we leave. Keeping the area coned off until then avoids tyre marks and damage.
When one joint fails, others of the same age are rarely far behind. Inspecting the whole run is worth the effort so you can prioritise and budget. We will tell you which movement joints need doing now and which can wait.