Medway · England
External & façade joints in Walderslade, Medway
Sealing brickwork movement joints, render, cladding and façade joints in Walderslade, with a 12-month guarantee on every job. Call for a quick quote.
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
How it works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a handful of joints, longer for a whole elevation. Parking around Walderslade is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
- Mention any leaks or damp you’ve noticed
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or send us an email.
Advice
External mastic for homes and businesses in Walderslade
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We take the old material out and do it properly. If you are dealing with sealant that has lost its bond to the brick or render and cracked joints where brick meets render or frames, we can help.
In a smaller place like Walderslade, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are generally the first to go.
Every job comes with a 12-month guarantee.

- Location
- Walderslade (ME5)
- Wider area
- Medway
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Walderslade
Other services in Walderslade
Landlord and commercial work in Walderslade
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Cracking across the wall rather than at a joint
- Loose or hollow render, which needs re-rendering
- Structural movement, which needs a surveyor or engineer
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
What we seal
- Façade panels
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
External mastic in Walderslade: local notes
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. With historic houses such as Starkey Castle (about 3.3 miles north-west) nearby, there’s older building stock in the area around Walderslade 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.
In the older streets around St William's Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For site and facilities teams at buildings such as Tunbury Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Chatham station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Walderslade is about 1 mile south of Chatham, in Medway. From the centre of Walderslade to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Walderslade is one of 68 places in Medway where we work for external mastic. There’s also a page for Chelmsford, about 28 miles away.
Work in ME5 is quoted and booked the same way as anywhere else. Streets in the area include Farm Road, York Avenue and Walsham Road, and we cover them all. Being close to the A2045, Walderslade is simple for us to get to for external mastic. If you’re just outside Walderslade, we cover Blue Bell Hill (1 mile west), Lordswood (1 mile east), Kit's Coty (1 mile south-west), Chatham (1 mile north) and Lidsing (2 miles east). Larger places within reach include Gillingham (3 miles north-east), Rochester (4 miles north), Rainham (4 miles north-east), Strood (4 miles north-west), Park Wood (3 miles east) and Twydall (4 miles north-east).
Near you in Walderslade
In Walderslade, that means homes and buildings near Westfield Wood, Greenacre Academy and Walderslade Girls' School and the streets around them. The nearest railway station is Chatham station, about 3.1 miles north of the centre. Other landmarks nearby include Allington Castle (3 miles south) and Pentagon Shopping Centre (3.3 miles north). For a walk, there’s Blue Bell Hill and Burham Down.
Common questions in Walderslade
I let a flat near Chatham station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Will you come out to Walderslade?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Should I point up the gap in my brickwork?
No. Cement or mortar can’t stretch, so the joint stops doing its job. If it has already been filled, we can generally cut it out and reseal it.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How do I get a quote for external mastic in Walderslade?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Do you work at height?
Each building is different. Tell us the height, the number of joints and what’s below them and we will confirm how they can be reached safely.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
What affects the quote in Walderslade
Your quote is based on your job. We take into account:
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- How easy the joints are to reach
- Working hours on commercial sites
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Roughly how big the job is
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job.
Leave it or put it right?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Around Walderslade, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What you get with us
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- We are fully insured
- More than 20 years in sealant work
Take a look at our cost guide and our reviews.
Different surfaces, different methods
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
