Hampshire · England
External & façade joints in Hythe, Hampshire
Problem with your movement joints in Hythe? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Cracked joints where brick meets render or frames
- Rain getting behind render or cladding at a joint
- Panel joints letting water in
Common problems we fix in Hythe
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint and speed up the damage.
Signs it’s time to call us include:
- Joints where the bead has come unstuck
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
If you look after a building such as Waterside Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it
- Which sealant they’ll use, and why
- Is VAT in the price?
External mastic for homes and businesses in Hythe
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, so once it splits or hardens, the joint stops working and water gets in. If you are dealing with joints where the bead has come unstuck and joints with sealant missing in places, we can help, whatever the surface.
Extensions are a common sight on houses around Hythe, and the line where an extension meets the original house is a common leak point. Sealing it properly means the right joint depth and a flexible sealant, not a quick bead.
Our work is backed for twelve months, in Hythe and everywhere else we cover.
- Location
- Hythe (SO45)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Nearby places to Hythe
More services for Hythe
Why deal with it now?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and early is when they’re cheapest and quickest to sort.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Why us?
- We’re fully insured
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- A choice of colours where the product allows
Take a look at how sealant jobs are priced or customer reviews.
Landlord and commercial work in Hythe
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
We also work for property managers and facilities teams in Hythe and across Hampshire. We can quote a run of properties together, and we’re fully insured.
The process
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on the building. A visit in Hythe needs access to the work and a place to park close by. For outside work, let us know about side access, gates and any upper-floor joints.
- We start by walking round the building and agreeing the joints and the access.
- 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.
Getting ready for the visit
- Mention any parking rules near the property
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Get a quote
Need a quote? Please ring 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Different surfaces, different methods
Render joints
Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out.
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Fix overflowing gutters above sealed joints
- Walk round the building once a year and look at the joints
- Leave the joints unpainted unless we’ve said otherwise
- Clear growth from the base of walls and joints
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Questions from Hythe
Can you do external mastic in Hythe?
Yes, Hythe is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords with property near Southampton Town Quay station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We pick the one that suits your wall best so the joint does not draw the eye.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
External mastic in Hythe: local notes
Hythe is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s 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, 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 Southampton Town Quay station, split movement joints are easy to miss on a rental until damp shows inside. Homes close to Church of St John include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Hythe is about 4 miles south of Southampton, in Hampshire. From the centre of Hythe to the outskirts, external mastic is available for homes and businesses alike. Our Hampshire coverage runs to 683 places, and Hythe is one of them.
Postcode districts we cover here for external mastic: SO45. External mastic is available to properties on High Street, Deerleap Close and Langdown Lawn and the roads around them. Neighbouring places we cover for external mastic include Dibden Purlieu (1 mile south-west), Dibden (1 mile west), Marchwood (3 miles north-west), The Hummicks (4 miles south-west) and Beaulieu (4 miles south-west). Larger places within reach include Winchester (14 miles north), Gosport (12 miles east), Eastleigh (8 miles north), Fareham (9 miles east), Totton (6 miles north-west) and Chandler's Ford (9 miles north).
Local landmarks in Hythe
In Hythe, that means homes and buildings near Noadswood School, Testwood School and No.5 (The Lord Nelson Public House) and the streets around them. Hythe’s nearest station is Southampton Town Quay station, about 2.3 miles north of the centre. Well-known places in the area include Netley Castle (2.1 miles north-east) and Westquay (2.9 miles north). The countryside around Hythe includes Mercury Marshes.