Surrey · England
External & façade joints in Belmont, Surrey
Problem with your movement joints in Belmont? We remove the old material, prepare the joints and seal them properly.
- Weeds or debris growing in open joints
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
Outside joints around Belmont
Historic houses like Nonsuch Mansion (about 1.5 miles north-west) are a reminder that the area around Belmont has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Belmont station? Then split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as Avenue Primary Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Belmont is about 2 miles south of Sutton, in Surrey. For external mastic in and around Belmont, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover Surrey, Belmont included. We cover 395 towns and villages across Surrey. For nearby work, see our London page (12 miles or so).
Our applicators cover all of SM2 and SM5 for external mastic. External mastic is available to properties on The Avenue, Sandy Lane and Downs Road. We also cover Cheam (1 mile north-west), Cuddington (2 miles north-west), North Looe (2 miles west), Nork (2 miles south-west) and North Cheam (2 miles north). We also work in nearby towns such as Epsom (3 miles west), Horley (11 miles south), Redhill (7 miles south), Reigate (7 miles south), Walton-on-Thames (9 miles west) and Caterham (6 miles south-east).
Near you in Belmont
We work in homes and buildings around Howell Hill, Glaisdale School and Harris Academy Sutton, among other places. Belmont has its own railway station: Belmont station. Well-known places in the area include The Ashley Centre (3 miles west) and Honeywood Museum (2.2 miles north-east). Green spaces nearby include Duppas Hill and Belmont Pastures.
How we handle external mastic in Belmont
On houses, flats and commercial buildings across Belmont, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. Common call-outs are for leaking joints around cladding and façade panels and water getting into walls through failed joints, across render & cladding joints, joints between brick and frames and concrete & block.
In and around Belmont, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Belmont (SM2, SM5)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Belmont
More services for Belmont
Signs you need external mastic in Belmont
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
It’s worth asking for a quote if you see:
- Rigid filler in a joint that should flex
- Cracked joints where brick meets render or frames
- Joints with sealant missing in places
- Water getting into walls through failed joints
Homes close to Church of St John include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- When the joint can take water or movement
- Whether they’re fully insured
- What product goes in the joint
- Who turns up on the day
Questions from Belmont
Can you do external mastic in Belmont?
Yes, Belmont is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Will you come out to Belmont?
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.
Can you do several jobs on one visit?
Of course. Doing several areas at once is usually more efficient.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
How long before the joint can be used?
Cure times vary by product and the conditions. Before we leave, we’ll tell you the cure time.
How much does external mastic cost in Belmont?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email and let us know what needs doing and where.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
I rent my home. Can I book you?
Yes. Check with your landlord; we can send the quote to them too.
What the job involves on each surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Looking after it afterwards
So the new joints stay in good condition:
- Never let anyone fill a movement joint with mortar
- Fix overflowing gutters above sealed joints
- Keep high-pressure jets off the joints
- Have failed joints looked at early
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Honest limits
New sealant can’t fix everything, and we’ll tell you before we start. Sealant won’t put right:
- Damp that is not coming from the joint
- Cracks in the bricks or render themselves, away from the joints
- Walls that need new movement joints cut into them
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Façade panels
- Concrete & block
- Joints between brick and frames
Quotes for external mastic in Belmont
The quote reflects the job in front of us. We look at:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
To make quoting easier, please include:
- Roughly how big the job is
- What’s wrong with the joints now
- Any previous sealing or DIY work
- How we’d reach the joints
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
How the visit works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours to a few days, depending on the length of joint and the access from start to finish. For a job in Belmont, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Clear items away from the joints we are working on
- Tell us about any previous sealing or DIY attempts
Getting a quote
Want a quote for external mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
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Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can be quoted together.