Thurrock · England
External & façade joints in Balstonia, Thurrock
Our applicators work in Balstonia on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Movement joints with cracked, split or missing sealant
- Joints where the bead has come unstuck
- Weeds or debris growing in open joints
How the job changes by surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that is happened, we rake it out and reseal it properly.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and protects the render itself.
How we handle external mastic in Balstonia
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what access is needed. Common call-outs are for movement joints filled with mortar instead of sealant and weeds or debris growing in open joints, across façade panels, render & cladding joints and concrete & block.
Homes around Balstonia range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Location
- Balstonia (SS17)
- Region
- Thurrock
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

When something else is needed
We’ll always be straight with you, so here’s what sealant can’t fix:
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
- Damp that is not coming from the joint
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Brickwork movement joints
- Façade panels
- Concrete & block
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
External mastic in Balstonia: local notes
Balstonia is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Stanford-Le-Hope station, outside joints that have cracked can let damp into a rental, so check them between lets. If you look after a building such as St Joseph's Catholic Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Balstonia is about 4 miles south of Basildon, in Thurrock. Homes, rented property, offices and hotels in Balstonia is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Our area takes in 26 places across Thurrock. Chelmsford is on our list too, around 15 miles away.
Jobs for external mastic in SS17 works the same way as everywhere else we cover. If you need external mastic at a property on Link Road, Wharf Road and Poley Road or anywhere close by, we can help. We also cover the places around Balstonia: Stanford-le-Hope (1 mile north-east), Horndon on the Hill (1 mile west), Corringham (1 mile east), Fobbing (2 miles north-east) and Langdon Hills (3 miles north). Further out, we also cover Grays (5 miles south-west), South Ockendon (6 miles west), Chadwell St Mary (3 miles south-west), Aveley (8 miles west), Tilbury (5 miles south-west) and South Stifford (6 miles south-west).
Local landmarks in Balstonia
Locally, jobs take us to homes and businesses close to Inn On The Green, Hassenbrook School Specialist Technology College and Grove House Wood. The nearest railway station is Stanford-Le-Hope station, about 0.5 miles south-west. Other landmarks nearby include Basildon University Hospital (2.8 miles north) and Eastgate Shopping Centre (3.7 miles north). Not far away are Stanford Wharf RSPB reserve.
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In an older home around Balstonia, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
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.
Why choose Mr Mastic in Balstonia
- White, clear, grey or another colour, product permitting
- Domestic, commercial and hotel work
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
Read how sealant jobs are priced and our reviews.
Also near Balstonia
Also in Balstonia
When to call us in Balstonia
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Most people get in touch when they notice one of these:
- Sealant pulling away from one side of the joint
- Joints pointed up with cement by mistake
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
If you live in an older home near Church of St Margaret of Antioch, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- Whether VAT is included
- What product goes in the joint
- How the joint is cleaned and prepared
- How the colour is chosen
What affects the cost of external mastic
The price is agreed before any work begins. It’s based on:
- Any mould that needs treating
- The number of rooms or windows
- The product the joint needs
- The amount of work
Doing several joints on one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
What we need to know
To help us quote quickly, let us know:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- Whether it has been sealed before
- Photos by email, if that is easy
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. In a smaller place like Balstonia, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Read more
Common questions in Balstonia
Is Balstonia within the area you cover?
Yes, Balstonia is covered. We work across 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 you help a landlord with a rental near Stanford-Le-Hope station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
What is a movement joint?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Can you reach joints on upper floors?
It depends on the building. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
