Essex · England
External Mastic in Shenfield
External mastic across Shenfield and nearby, with old sealant always removed completely and a one-year guarantee.
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Joints where the bead has come unstuck
External mastic in Shenfield, done properly
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product. If you’re dealing with sealant that has lost its bond to the brick or render and rain getting behind render or cladding at a joint, we can put it right, on copings & trims, façade panels and render & cladding joints alike.
In a smaller place like Shenfield, some homes face open ground, and walls and rooflines facing the weather take the worst of it. That is where gutter joints and wall joints tend to fail first.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Place
- Shenfield (CM15, CM13)
- Region
- Essex
- Cover
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Render joints
Water behind render can lead to blown patches. Resealing the joints early keeps water out.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so the movement is taken up.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Loose or hollow render, which needs re-rendering
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Façade panels
- Joints between brick and frames
Places near Shenfield
More services for Shenfield
Common questions in Shenfield
Do you work for landlords with property near Shenfield station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is Shenfield in your area for external mastic?
Yes. Our work covers London and the South East, and Shenfield is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Are you fully insured?
Yes. We’re fully insured.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
When is the sealant fully cured?
Cure times vary by product and the temperature. Before we leave, we’ll tell you the cure time.
Outside joints around Shenfield
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 Ingatestone Hall (about 3.8 miles north-east) nearby, there’s older building stock in the area around Shenfield as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
For landlords with property near Shenfield station, outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as Shenfield St. Mary's Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Church of St Mary the Virgin include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Shenfield is about 1 mile north-east of Brentwood, in Essex. From the centre of Shenfield to the outskirts, external mastic is available for homes and businesses alike. Shenfield is one of 644 towns and villages in Essex we cover for external mastic. You can also see our page for Chelmsford, roughly 10 miles from Shenfield.
We cover every part of the CM15 and CM13 postcode area for external mastic and the streets around it. You’ll find streets such as York Road, Hall Lane and Worrin Road, all of which we cover. Other places close to Shenfield include Brentwood (1 mile south-west), Hutton Mount (1 mile south-east), Hutton (2 miles east), Ingrave (2 miles south-east) and Mountnessing (2 miles north-east). Further out, we also cover Chelmsford (10 miles north-east), Basildon (7 miles south-east), Harlow (13 miles north-west), Canvey Island (14 miles south-east), Billericay (4 miles east) and Rayleigh (13 miles east).
Local landmarks in Shenfield
We work in homes and buildings around Sawyers Hall College, Hutton Country Park and Shenfield High School, among other places. Shenfield’s nearest station is Shenfield station, about 0.5 miles east of the centre. Well-known places in the area include Brentwood Community Hospital (0.5 miles south). Not far away are Thorndon Park.
Quotes for external mastic in Shenfield
For a quick quote, just ask. The main things that affect it are:
- The product the joint needs
- Access and height
- The old material and how stubborn it is
- When we can work, for business premises
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
There’s no need for technical detail. Just tell us:
- Where the property is
- How we’d reach the joints
- Roughly how big the job is
- What’s wrong with the joints now
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details, and pictures are welcome.
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Fix overflowing gutters above sealed joints
- Never let anyone fill a movement joint with mortar
- Ask before painting over external sealant
- Walk round the building once a year and look at the joints
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
How the visit works
On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to several days, depending on the building. For a job in Shenfield, 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
How to get a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
Advice
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.