Kent · England
Poundsbridge External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Poundsbridge, backed by a 12-month guarantee. Call for a quick quote.
- Rain getting behind render or cladding at a joint
- Hard, crazed mastic that has stopped moving
- Movement joints with cracked, split or missing sealant
About our external mastic in Poundsbridge
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. If you have damp patches traced to an open external joint and plants rooting in failed movement joints, we can help.
Somewhere as small as Poundsbridge, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or email us.
- Location
- Poundsbridge (TN11)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
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.
What happens if it’s left?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In a small place like Poundsbridge, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What you get with us
- Domestic, commercial and hotel work
- Trusted Arbo and Everbuild sealants
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
Take a look at our cost guide or customer reviews.
What external mastic looks like in Poundsbridge
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Penshurst Place (about 1.6 miles north-west) nearby, there’s older building stock in the area around Poundsbridge 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.
Schools such as Speldhurst Church of England Voluntary Aided Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Ashurst Kent station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Poundsbridge is about 3 miles north-west of Royal Tunbridge Wells, in Kent. Wherever you are in the TN11 postcode area, our applicators can take on external mastic. 922 places in Kent are on our list. Crawley is on our list too, around 17 miles away.
Work in TN11 works the same way as everywhere else we cover. That includes homes and businesses on Penshurst Road and Poundsbridge Hill and the roads around them. Neighbouring places we cover for external mastic include Bullingstone (1 mile south-east), Speldhurst (1 mile east), Printstile (1 mile north-east), Stockland Green (1 mile east) and Langton Green (2 miles south). Further out, we also cover Sevenoaks (9 miles north), Royal Tunbridge Wells (3 miles south-east), Tonbridge (5 miles north-east), Kings Hill (12 miles north-east), Paddock Wood (8 miles east) and Edenbridge (7 miles north-west).
Around Poundsbridge
Locally, jobs take us to homes and businesses close to Bennett Memorial Diocesan School and The George And Dragon pub. For rail, the closest station is Ashurst Kent station, about 2.8 miles south-west of the centre. Other landmarks nearby include Chiddingstone Castle (3.4 miles north-west) and Kent and Sussex Hospital (2.8 miles south-east). Green spaces nearby include Broadwater Warren RSPB Reserve and Barden Lake.
Landlords, agents and businesses in Poundsbridge
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
FAQs for Poundsbridge
Will you come out to Poundsbridge?
Yes. Poundsbridge is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Poundsbridge?
Yes, Poundsbridge is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces, primed where needed.
Why is there a gap in my brick wall?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
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.
When something else is needed
A few problems are outside what sealant work can do:
- Movement that’s more than a sealant joint can take
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Joints between brick and frames
- Façade panels
Places near Poundsbridge
Also in Poundsbridge
What we are called out for in Poundsbridge
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Keep an eye out for any of the following:
- Water getting into walls through failed joints
- Cracked joints where brick meets render or frames
- Panel joints letting water in
- Joints pointed up with cement by mistake
For an older house near a landmark such as All Souls Chapel, an extension built onto an older house moves differently, and the joint between them takes the strain.
Comparing quotes
- Whether the sealant suits the joint
- How the colour is chosen
- What preparation is included
- The length of the guarantee
Keeping the joints in good condition
So the new joints stay in good condition:
- Get split or bare joints resealed while the damage is small
- Avoid pressure-washing directly into sealant joints
- Keep movement joints as flexible joints, not mortar
- Tell anyone working on the walls about the movement joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Resealing it early helps prevent that.
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on the building, and the area is left clean. In a small place like Poundsbridge, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we’re working on
Ask for a quote
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.