Essex · England
Doddinghurst Common External Mastic
Specialist external mastic for Doddinghurst Common: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Old sealant gone brittle and cracked
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
About our external mastic in Doddinghurst Common
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing. If you have cracked joints where brick meets render or frames and water getting into walls through failed joints, we can help.
Around Doddinghurst Common, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
Our work is backed for twelve months.
- Place
- Doddinghurst Common (CM15)
- Region
- Essex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, 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 affects the cost of external mastic
The price is agreed before any work begins. It takes into account:
- Access and height
- The number of rooms or windows
- When we can work, for business premises
- Mould in or behind the old joints
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What we need to know
What to tell us when you ask for a quote:
- What’s wrong with the joints now
- Whether it has been sealed before
- Photos by email, if that is easy
- Roughly how big the job is
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details and send photos if you have them.
FAQs for Doddinghurst Common
Do you work for landlords with property near Shenfield station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Is Doddinghurst Common in your area for external mastic?
Yes, Doddinghurst Common is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Where is Mr Mastic based?
We work from Crawley. We cover Doddinghurst Common and the rest of Essex.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. A flexible sealant is the right fill.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Surface by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
When something else is needed
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Cracks in the bricks or render themselves, away from the joints
- Adding movement joints to masonry that has none
- Damp that is not coming from the joint
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
What we are called out for in Doddinghurst Common
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
The problems people generally mention when they call include:
- Water getting into walls through failed joints
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
- Gaps where render, brick and frames meet
Managing a site like Kelvedon Hatch Community Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What guarantee comes with the work
- What happens if the job turns out different
- What preparation is included
- When the joint can take water or movement
Outside joints around Doddinghurst Common
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.
Homes close to New Church of St Nicholas include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep. Letting a property close to Shenfield station? Then split movement joints are easy to miss on a rental until damp shows inside.
Doddinghurst Common is about 3 miles north-west of Brentwood, in Essex. From the centre of Doddinghurst Common to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Essex coverage runs to 644 places, Doddinghurst Common among them. You can also see our page for Chelmsford, about 11 miles away.
Postcode districts we cover here for external mastic: CM15. If you are just outside Doddinghurst Common, we cover Kelvedon Hatch (1 mile north), Navestock Side (1 mile south-west), Bentley (1 mile south-west), Crow Green (1 mile south-east) and Coxtie Green (1 mile south-west). Larger places within reach include Chelmsford (11 miles north-east), Basildon (10 miles south-east), Harlow (10 miles north-west), Brentwood (3 miles south-east), Billericay (7 miles east) and Rayleigh (15 miles east).
Around Doddinghurst Common
In Doddinghurst Common, that means homes and buildings near Becket Keys Church of England School and The Shepherd Public House. Doddinghurst Common’s nearest station is Shenfield station, roughly 3.1 miles south-east of the centre. Other landmarks nearby include Brentwood Community Hospital (3 miles south-east). Not far away are Thorndon Park.
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere like Doddinghurst Common needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Clear items away from the joints we are working on
Get a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Related advice
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Why deal with it now?
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render near the open joint, so the problem grows beyond the joint itself. Older cottages and farmhouses around Doddinghurst Common can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.
Why us?
- White, clear, grey or another colour, product permitting
- Arbo and Everbuild products
- Homes, businesses and hotels
- 4.9 on Google from 180+ five-star reviews