Kent · England
Murston External Mastic
External mastic for Murston, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Old sealant gone brittle and cracked
- Failed sealant between panels on a façade
- Rain getting behind render or cladding at a joint
What affects the quote in Murston
Every job gets its own quote. These are the things that affect it:
- Access and height
- The product the joint needs
- How much there is to do
- The number of rooms or windows
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
What we need to know
Photos help, but a description is a good start. Please mention:
- The address or postcode of the job
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
Want a quote for external mastic? Please ring 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
How we handle external mastic in Murston
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. If you have damp patches traced to an open external joint and rigid filler in a joint that should flex, we can put it right, whatever the surface.
Houses in smaller places like Murston can stand more in the open than those in a built-up town, and walls and rooflines facing the weather take the worst of it. Joints on those sides are generally the first to go.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Murston (ME10, ME9)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Murston
Can you help a landlord with a rental near Sittingbourne station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you cover smaller places like Murston?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
Is it worth trying 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.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a smaller place like Murston, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Ask for a quote
If you’re in Murston and need external mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Read more
How the job changes by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Looking after it afterwards
After the cure time, these simple habits help:
- Act on the first splits you see
- Leave the joints unpainted unless we have said otherwise
- Walk round the building once a year and look at the joints
- Never let anyone fill a movement joint with mortar
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Do you need external mastic in Murston?
If plants are growing out of a joint, the sealant has generally failed or was never there. Dirt and roots then trap moisture in the joint and speed up the damage.
Any of these means the joints need attention:
- Joints pointed up with cement by mistake
- Rain getting behind render or cladding at a joint
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
For site and facilities teams at buildings such as Sunny Bank Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- How the colour is chosen
- Who turns up on the day
Places near Murston
Other services in Murston
Why it’s worth doing now in Murston
Sealing over the top of old mastic does not hold for long. New sealant does not bond well to old, weathered sealant, so we always take the old sealant out. Homes in smaller places like Murston can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Why book with us
- We leave the area clean and tidy
- Full insurance on every job
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or what customers say.
External mastic in Murston: local notes
Murston is close to 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. 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.
Letting a property close to Sittingbourne station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as Church of All Saints, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Murston is about 1 mile east of Sittingbourne, in Kent. We provide external mastic to homes and businesses in Murston. Our Kent coverage runs to 922 places, Murston among them. Our Chelmsford page covers work nearby, about 30 miles away.
Every address in ME10 and ME9 is within our area for external mastic. If you need external mastic at a property on Oak Road, Glebe Lane and Leigh Road or anywhere close by, we can help. We also cover Milton Regis (1 mile north), Sittingbourne (1 mile west), Tonge Corner (1 mile east), Rodmersham (1 mile south) and Kemsley (1 mile north). Further out, we also cover Maidstone (11 miles south-west), Ashford (15 miles south), Canterbury (15 miles east), Whitstable (12 miles east), Faversham (6 miles east) and Minster (6 miles north).
Around Murston
Typical jobs here are in homes near Sittingbourne Community College, Milton Creek Country Park and The New Inn and the streets around them. The nearest railway station is Sittingbourne station, about 0.7 miles west of the centre. Nearby you’ll also find Sittingbourne Heritage Museum (within half a mile west) and Bayford Court (within half a mile west).