Hertfordshire · England
Braughing External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Braughing, backed by a one-year guarantee. Ask us for a quote.
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
About our external mastic in Braughing
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. If you are dealing with failed seals between different materials and weathered mastic that no longer stretches, we can put it right, on brickwork movement joints, render & cladding joints and concrete & block alike.
External sealant needs dry, clean surfaces, so work around Braughing is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Our work is backed for twelve months.
- Location
- Braughing (SG11)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Braughing questions
What guarantee comes with external mastic in Braughing?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is Braughing within the area you cover?
Yes, Braughing is covered. 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.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
How much does external mastic cost in Braughing?
We don’t 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. You’ll get a clear quote before we start.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages to suit the site.
What’s an expansion joint in brickwork?
Brickwork, render and cladding all move a little, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
What affects the quote in Braughing
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- Access and height
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or email us and we will give you an honest view and a quote.
What we need to know
When you call or email, it’s useful to know:
- Where the job is, and your postcode
- How we’d reach the joints
- The rough size of the job
- Pictures of the joints, sent by email
Every job is quoted individually. Simply ring 0345 464 0079 or send us an email and describe the job.
Walls and rooflines in Braughing
With historic houses such as Much Hadham Palace (about 4 miles south-east) nearby, there’s older building stock in the area around Braughing as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
If you live in an older home near Parish Church of St Mary the Virgin, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Braughing is about 6 miles north-west of Bishop's Stortford, in Hertfordshire. Whether you are in the middle of Braughing or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Braughing is one of 381 towns and villages in Hertfordshire where we work for external mastic. Chelmsford is on our list too, around 23 miles away.
We cover every part of SG11 for external mastic and the streets around it. You’ll find streets such as The Street, Pentlows and Northfield. If you are just outside Braughing, we cover Hay Street (1 mile north-west), Westmill (2 miles north-west), Albury (2 miles east), Gravesend (3 miles east) and Furneux Pelham (3 miles north-east). Larger places within reach include Stevenage (9 miles west), Bishop's Stortford (6 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (13 miles west), Hoddesdon (11 miles south) and Cheshunt (14 miles south).
Landmarks near Braughing
Around Braughing, our work takes us to homes and buildings near The Axe And Compasses Public House and the streets around them. Nearby you will also find Moated mound (3.7 miles east).
What the job involves on each surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it and keep the sealant to the right depth.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Places near Braughing
Also in Braughing
What happens on the day
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. The job generally takes a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Braughing, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Advice
Signs you need external mastic in Braughing
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
It’s worth asking for a quote if you see:
- Plants rooting in failed movement joints
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
- Failed sealant between panels on a façade
If you look after a building such as Jenyns First School and Nursery, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What to look for in a quote
- Is the old sealant removed completely?
- How long to leave it before use
- How the colour is chosen
- What preparation is included
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Cracks in the bricks or render themselves, away from the joints
- Structural movement, which needs a surveyor or engineer
- Adding movement joints to masonry that has none
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Surfaces we seal
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
Why it’s worth doing now in Braughing
Sealing over the top of old mastic doesn’t hold for long. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Around Braughing, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Domestic, commercial and hotel work
- Old sealant always removed completely
- Full insurance on every job
- Rated 4.9 stars on Google
Take a look at how sealant jobs are priced and our reviews.
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Look over the joints every year, ideally after winter
- Keep soil, plants and ivy away from the joints
- Tell anyone working on the walls about the movement joints
- Have failed joints looked at early
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Small splits are the time to act. At that stage it’s a simple cut out and reseal.