Kent · England
External & façade joints in Sevenoaks, Kent
Sealing brickwork movement joints, render, cladding and façade joints for Sevenoaks, backed by a one-year guarantee. Call for a quick quote.
- Rigid filler in a joint that should flex
- Gaps where render, brick and frames meet
- Moss and dirt in joints with no sealant left
Landlord and commercial work in Sevenoaks
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Housing providers, facilities teams and property managers book us too in Sevenoaks and across Kent. We can quote a run of properties together, and we are fully insured.
How we handle external mastic in Sevenoaks
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We are often asked to deal with failed seals between different materials and sealant that has lost its bond to the brick or render, on render & cladding joints, joints between brick and frames and brickwork movement joints.
In a town like Sevenoaks, older houses with traditional gutters sit alongside newer estates with uPVC rooflines and rendered walls. All of those joints move, so they need a flexible sealant rather than a rigid filler.
Big or small, you get the same 12-month guarantee in Sevenoaks and across Kent.
Common questions in Sevenoaks
Is Sevenoaks in your area for external mastic?
Yes. Our work covers London and the South East, and Sevenoaks is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Is external mastic in Sevenoaks guaranteed?
All our work, in Sevenoaks and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
What do you put in the joint?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses, and we are fully insured.
When is the sealant fully cured?
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.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Get split or bare joints resealed while the damage is small
- Walk round the building once a year and look at the joints
- Avoid pressure-washing directly into sealant joints
- Tell anyone working on the walls about the movement joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.
The process
We keep the work tidy and contained to the area we’re working on, 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. A visit in Sevenoaks 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 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Move anything stored near the joints
- Mention any tricky access
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
Related advice
Surface by surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
What we’re called out for in Sevenoaks
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
The most common problems we see are:
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Joints pointed up with cement by mistake
- Rain getting behind render or cladding at a joint
Rented homes near Sevenoaks station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- Whether they’re fully insured
- Who does the work, and how experienced they are
- How long the guarantee is
- Is VAT in the price?
What external mastic looks like in Sevenoaks
With historic houses such as Knole House (about 1.3 miles south-east) nearby, there’s older building stock in the area around Sevenoaks as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around St John the Baptist, older walls, gutters and the joints where extensions meet them need a flexible sealant. Managing a site like Sevenoaks Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Sevenoaks is about 19 miles south-east of London, in Kent. Every kind of property in Sevenoaks is covered for external mastic. Every job comes with our 12-month guarantee. Sevenoaks is one of 922 places in Kent where we work. We also work in London, around 19 miles away.
We work across the TN13, TN14, TN15 and TN8 postcode area for external mastic and the streets around it. Local streets include London Road, High Street and Church Road, all of which we cover. Being close to the A21 and A25, Sevenoaks is simple for us to get to for external mastic. If you’re just outside Sevenoaks, we cover Riverhead (1 mile west), Kippington (1 mile south), Dunton Green (1 mile north-west), Bessels Green (1 mile west) and Chipstead (2 miles west). We also work in nearby towns such as Maidstone (15 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (13 miles north-east), Tonbridge (7 miles south-east) and Northfleet (13 miles north-east). Sevenoaks is one of the larger places we cover in Kent.
Near you in Sevenoaks
Locally, jobs take us to homes and businesses close to The Rifleman pub, New Beacon School and Knole Academy, among other places. There’s a railway station in Sevenoaks itself: Sevenoaks station. Nearby you will also find Sevenoaks Hospital (0.6 miles north-east) and Kemsing Castle Bank (2.6 miles north-east). For a walk, there’s Dryhill Nature Reserve.
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 the joint depth matters as much as the finish.
If you’re 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.
Why deal with it now?
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. 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.
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 play a part.
Why Sevenoaks clients choose us
- Every job guaranteed for a year
- An ARBOMaster approved applicator
- Neat joints and a tidy finish
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and customer reviews.