Essex · England
External & façade joints in Wickham Bishops, Essex
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Wickham Bishops and across Essex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Old sealant gone brittle and cracked
- Weeds or debris growing in open joints
- Joints where the bead has come unstuck
How we quote for external mastic
There’s no set price list, because jobs vary so much. What we look at:
- The product the joint needs
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
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.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- The type of property
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
How we handle external mastic in Wickham Bishops
Low-level joints can normally be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what access is needed. We’re often asked to deal with failed seals between different materials and movement joints filled with mortar instead of sealant, across concrete & block, joints between brick and frames and render & cladding joints.
External sealant needs dry, clean surfaces, so work around Wickham Bishops is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
There’s a 12-month guarantee on every job, whatever its size.

- Location
- Wickham Bishops (CM8)
- Region
- Essex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Common questions in Wickham Bishops
Can you do external mastic in Wickham Bishops?
Yes. We work across London and the South East, and Wickham Bishops is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Wickham Bishops?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, wherever you are.
What external mastic looks like in Wickham Bishops
Compared with the north and west, the South East gets less rain, 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 Church of St Bartholomew, the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Witham station, outside joints that have cracked can let damp into a rental, so check them between lets.
Wickham Bishops is about 2 miles south-east of Witham, in Essex. We carry out external mastic for homes and businesses in Wickham Bishops and the surrounding area. Wickham Bishops is one of 644 towns and villages in Essex where we work for external mastic. We also work in Chelmsford, about 8 miles from Wickham Bishops.
Here we cover the CM8 postcode area for external mastic. Whether your property is on The Street, Church Road and Station Road or a nearby road, our applicators can take on the job. If you’re just outside Wickham Bishops, we cover Beacon Hill (1 mile north-east), Great Totham (1 mile south-east), Great Braxted (2 miles north-east), Broad Street Green (2 miles south-east) and Langford (2 miles south). Larger places within reach include Colchester (12 miles north-east), Chelmsford (8 miles west), Braintree (9 miles north-west), Maldon (4 miles south), Billericay (15 miles south-west) and Rayleigh (13 miles south).
Local landmarks in Wickham Bishops
Locally, jobs take us to homes and businesses close to Maltings Academy, The Green Man pub and Whet Mead. The nearest railway station is Witham station, about 2.3 miles north-west. Not far away are Shut Heath Wood.
How to look after the new joints
After the cure time, these simple habits help:
- Deal with leaking gutters that soak the joints below
- Make sure movement joints aren’t pointed over
- Check the sealant is paintable before painting near it
- Keep soil, plants and ivy away from the joints
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Failed render or damaged cladding panels
- Structural movement, which needs a surveyor or engineer
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
What we seal
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Façade panels
Signs you need external mastic in Wickham Bishops
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
If you can see any of these, it’s time to have the joints looked at:
- Movement joints with cracked, split or missing sealant
- Sealant pulling away from one side of the joint
- Hard, crazed mastic that has stopped moving
- Panel joints letting water in
For site and facilities teams at buildings such as Great Totham Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Questions to ask before booking
- How the colour is chosen
- Is VAT in the price?
- What guarantee comes with the work
- What preparation is included
What the job involves on each surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a handful of joints, longer for a whole elevation, including the tidy-up. Somewhere like Wickham Bishops needs a little journey planning: 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.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
- Move anything stored near the joints
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or email us.
