Medway · England
Wouldham External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Wouldham, with a one-year guarantee on every job. Call for a quick quote.
- Joints pointed up with cement by mistake
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
About our external mastic in Wouldham
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two where mortar or filler would crack. We work on concrete & block, brickwork movement joints and joints between brick and frames, and the jobs we see most are movement joints filled with mortar instead of sealant and failed sealant between panels on a façade.
Older homes in small places like Wouldham may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.
You get a 12-month guarantee, the same in Wouldham as everywhere else we work.

- Where
- Wouldham (ME1)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Wouldham
If you manage several properties in or around Wouldham, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Common problems we fix in Wouldham
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
These are the problems we are asked about most:
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
Letting a property close to Halling station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What your quote should include
- How long to leave it before use
- Who turns up on the day
- What product goes in the joint
- How the joint is cleaned and prepared
Nearby places to Wouldham
What else we do in Wouldham
Why it’s worth doing now in Wouldham
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Wouldham, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start.
Why Wouldham customers choose us
- A sealant colour to suit the surroundings
- ARBOMaster approved applicator
- Tidy, careful work
- Colour agreed with you before any work starts
External mastic in Wouldham: local notes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Starkey Castle (about 0.9 miles north) are a reminder that the area around Wouldham has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Managing a site like Halling Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Church of All Saints, an extension built onto an older house moves differently, and the joint between them takes the strain.
Wouldham is about 3 miles west of Chatham, in Medway. Anywhere in ME1, our applicators can take on external mastic. Our Medway coverage runs to 68 places, Wouldham among them. Our London page covers work nearby.
We work across ME1 for external mastic. If you need external mastic at a property on High Street, Oldfield Drive and Meadow Way or a nearby road, we can help. Other places close to Wouldham include Peters Village (1 mile south), Halling (1 mile west), Scarborough (1 mile south-east), Holborough (1 mile south-west) and North Halling (1 mile north-west). Larger places within reach include Gillingham (5 miles east), Chatham (3 miles east), Rochester (3 miles north-east), Rainham (6 miles east), Strood (3 miles north) and Luton (4 miles east).
Local landmarks in Wouldham
Around Wouldham, our work takes us to homes and buildings near Holborough Marshes, The Five Bells pub and The Thomas Aveling School. For rail, the closest station is Halling station, about 0.6 miles west. Well-known places in the area include Rochester Castle (3.3 miles north-east) and Pentagon Shopping Centre (3.6 miles north-east). Not far away are Blue Bell Hill and Burham Down.
Common questions in Wouldham
Can you do external mastic in Wouldham?
Yes. We work across London and the South East, and Wouldham is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
I let a flat near Halling station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
What does external mastic cost?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or email us.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Structural movement, which needs a surveyor or engineer
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Wouldham
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Copings & trims
How the job changes by surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
How it works
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. For a village or hamlet like Wouldham, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. 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.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- On commercial sites, let us know about site rules
- Clear items away from the joints we are working on
- Mention any parking rules near the property
How to get a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
Advice
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Clear growth from the base of walls and joints
- Have failed joints looked at early
- Wash walls gently around the sealant
- Fix overflowing gutters above sealed joints
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
