Essex · England
External & façade joints in Lanham Green, Essex
Movement joints in Lanham Green need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
How we handle external mastic in Lanham Green
A movement joint is a deliberate break that lets a wall expand and contract. 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. Common call-outs are for old sealant gone brittle and cracked and movement joints with cracked, split or missing sealant, across brickwork movement joints, copings & trims and joints between brick and frames.
Around Lanham Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Where
- Lanham Green (CM77)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Lanham Green: your questions answered
Is Lanham Green within the area you cover?
Yes. Lanham Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Cressing station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can you seal joints between two different materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
What should I tell you?
Let us know what needs doing and where, with photos by email if possible. If we need more, we will ask.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, wherever you are.
Towns and villages near Lanham Green
What else we do in Lanham Green
What we can’t put right
We’ll always be straight with you, so here’s what sealant cannot fix:
- Failed render or damaged cladding panels
- Rising or penetrating damp from elsewhere in the wall
- Structural movement, which needs a surveyor or engineer
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Copings & trims
What external mastic looks like in Lanham Green
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as Parish Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Cressing station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Lanham Green is about 2 miles south-east of Braintree, in Essex. From the centre of Lanham Green to the outskirts, we cover external mastic for every kind of property. We cover 644 towns and villages across Essex, from the larger towns to small villages. Our Chelmsford page covers work nearby, about 10 miles away.
Postcode districts we cover here for external mastic: CM77. Neighbouring places we cover for external mastic include Cressing (1 mile south-west), Perry Green (1 mile east), Bradwell (1 mile north-east), Silver End (1 mile south-east) and Stisted (2 miles north). Larger places within reach include Colchester (13 miles east), Chelmsford (10 miles south-west), Maldon (10 miles south), Witham (4 miles south), Camulodunum (11 miles east) and Halstead (6 miles north).
Around Lanham Green
Typical jobs here are in homes near The Three Ashes pub and Alec Hunter Academy, among other places. The closest station to Lanham Green is Cressing station, about 1.4 miles south-west of the centre. Nearby you’ll also find Cressing Temple (1.8 miles south) and William Julien Courtauld Hospital (2.8 miles west). The countryside around Lanham Green includes Belcher's and Broadfield Woods.
How the visit works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Lanham Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.
Advice
Signs you need external mastic in Lanham Green
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Look out for any of the following:
- Moss and dirt in joints with no sealant left
- Failed sealant between panels on a façade
- Sealant that has lost its bond to the brick or render
- Water getting into walls through failed joints
For site and facilities teams at buildings such as Cressing Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before you book
- How the joint is cleaned and prepared
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- Who turns up on the day
Landlords, agents and businesses in Lanham Green
If you manage several properties in or around Lanham Green, several properties can be quoted together. Send us the addresses and the work at each.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Why it’s worth doing now in Lanham Green
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Lanham Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
What you get with us
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
What affects the cost of external mastic
We don’t publish a price list. The quote depends on:
- How easy the joints are to reach
- The amount of work
- How many rooms, windows or areas are involved
- Working hours on commercial sites
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
You do not need to know the technical terms. Just tell us:
- If someone has resealed it before
- A few photos by email, if you can
- How many joints, rooms or windows are involved
- How we’d reach the joints
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.