Essex · England
Starling's Green External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Starling's Green, backed by a one-year guarantee. Ask us for a quote.
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Joints where the bead has come unstuck
Surface by surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
External mastic for homes and businesses in Starling's Green
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint doesn’t stand out. If you have movement joints with cracked, split or missing sealant and moss and dirt in joints with no sealant left, we can help, on façade panels, brickwork movement joints and concrete & block alike.
External sealant needs dry, clean surfaces, so work around Starling's Green is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
Our work is backed for twelve months, in Starling's Green and everywhere else we cover.
- Place
- Starling's Green (CB11)
- Region
- Essex
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What we cannot put right
It helps to know what we cannot do:
- Adding movement joints to masonry that has none
- Subsidence or other structural problems
- Failed render or damaged cladding panels
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think before you book.
Where we work in Starling's Green
- Façade panels
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
How it works
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for a handful of joints, longer for a whole elevation in most cases. In a small place like Starling's Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Move anything stored near the joints
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
How to get a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep movement joints as flexible joints, not mortar
- Point out the joints to other trades
- Have failed joints looked at early
- Wash walls gently around the sealant
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.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Starling's Green buildings and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Clavering Primary School, its movement joints, gutters and trims need looking after like any other building’s. Letting a property close to Newport (Essex) station? Then split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near Church of St Mary and St Clement, an extension built onto an older house moves differently, and the joint between them takes the strain.
Starling's Green is about 6 miles north of Bishop's Stortford, in Essex. Wherever you are in the CB11 postcode area, we cover external mastic for homes and businesses. Across Essex, we cover 644 places, Starling's Green among them. Our Chelmsford page covers work nearby (22 miles or so).
Postcode districts we cover here for external mastic: CB11. We also cover Clavering (1 mile east), Berden (1 mile south-east), Stocking Pelham (1 mile south), Hill Green (2 miles north-east) and The Willows (2 miles south-west). Larger places within reach include Harlow (13 miles south), Saffron Walden (7 miles north-east), Great Dunmow (12 miles south-east), Stansted Mountfitchet (5 miles south-east), Newhall (13 miles south) and Elsenham (5 miles south-east).
Around Starling's Green
For rail, the closest station is Newport (Essex) station, about 4.2 miles east of the centre. Other landmarks nearby include Brent Pelham (2.1 miles west). Green spaces nearby include Aubrey Buxton Nature Reserve.
Places near Starling's Green
What else we do in Starling's Green
Landlord and commercial work in Starling's Green
For anyone letting property in or around Starling's Green, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Questions from Starling's Green
Can you do external mastic in Starling's Green?
Yes, Starling's Green is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
I let a flat near Newport (Essex) station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
How do I get a quote for external mastic in Starling's Green?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Is the work guaranteed?
Yes, for a year. If there’s a problem with our work in that time, tell us and we’ll put it right.
Where do you work from?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. We’ll talk through colour options before we start from the range available.
What affects the quote in Starling's Green
The price is agreed before any work begins. It takes into account:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- Whether the work is at height
- Whether old sealant or filler has to be cut out
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
When you call or email, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- Roughly how big the job is
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.