Medway · England
External & façade joints in Wallend, Medway
Specialist external mastic for Wallend: careful preparation, the right product and tidy work. Call for a quick quote.
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
External mastic in Wallend
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall. If you have cracked joints where brick meets render or frames and failed sealant between panels on a façade, we can help.
Around Wallend, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in, and they need the right sealant at the right depth.
You get a 12-month guarantee, the same in Wallend as everywhere else we work.
- Where
- Wallend (ME3)
- Region
- Medway
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
Before we leave, we go over the finished joints with you. The work normally takes a few hours for a handful of joints, longer for a whole elevation, depending on the amount of work. Somewhere like Wallend needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
- Move anything stored near the joints
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
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Towns and villages near Wallend
What else we do in Wallend
Wallend buildings and the weather
Wallend 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Sheerness-On-Sea station, split movement joints are easy to miss on a rental until damp shows inside. Schools such as St James Church of England Primary Academy are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Wallend is about 5 miles north-west of Minster, in Medway. We carry out external mastic for householders, landlords and businesses in Wallend. Wallend is one of 68 places in Medway we cover for external mastic. For nearby work, see our Chelmsford page, about 22 miles away.
Every address in ME3 is within our area for external mastic. Main roads around Wallend include the B2001, which makes travel easy. We also cover the places around Wallend: Grain (1 mile east), Blue Town (2 miles east), Sheerness (3 miles east), Queenborough (3 miles south-east) and Rushenden (3 miles south-east). We also work in nearby towns such as Gillingham (8 miles south-west), Chatham (10 miles south-west), Rochester (10 miles south-west), Rainham (8 miles south-west), Strood (10 miles south-west) and Luton (9 miles south-west).
Landmarks near Wallend
Typical jobs here are in homes near The Hogarth Inn. Wallend’s nearest station is Sheerness-On-Sea station, about 2.6 miles east of the centre. Other landmarks nearby include Bluetown Heritage Centre (2.3 miles east). For a walk, there’s Bishop Saltings.
What sealant work can’t fix
We’ll always be straight with you, so here’s what new sealant won’t do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
- Structural movement, which needs a surveyor or engineer
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Façade panels
- Render & cladding joints
- Copings & trims
Wallend questions
Is Wallend within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Sheerness-On-Sea station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is there a guarantee?
Yes. Every job comes with our one-year guarantee.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Do you work at height?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What is a movement joint?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move and needs a flexible seal, not mortar.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
When to call us in Wallend
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
If you can see any of these, it’s time to have the joints looked at:
- Weeds or debris growing in open joints
- Panel joints letting water in
- Old sealant gone brittle and cracked
- Gaps where render, brick and frames meet
In the older streets around Church of St James, an extension built onto an older house moves differently, and the joint between them takes the strain.
Before booking anyone
- What guarantee comes with the work
- How hidden problems are handled
- Whether you can choose the colour
- Whether they seal over old material or remove it
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we are fully insured.
Different surfaces, different methods
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. A primer goes on where the product requires one.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
How to look after the new joints
To keep the joints looking good and working properly:
- Keep movement joints as flexible joints, not mortar
- Show decorators and builders where the movement joints are
- Don’t let climbing plants root in the sealant
- Act on the first splits you see
Do not paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.