Essex · England
External & façade joints in Greensted, Essex
Specialist external mastic for Greensted: careful preparation, the right product and tidy work. Call for a quick quote.
- Joints pointed up with cement by mistake
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
External mastic for homes and businesses in Greensted
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. We work on copings & trims, brickwork movement joints and façade panels, and common reasons people get in touch are rain getting behind render or cladding at a joint and movement joints filled with mortar instead of sealant.
Outside joints can only be sealed when they’re dry, so work in Greensted is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Whatever the size of the job, it’s backed by our one-year guarantee in Greensted and across Essex.
- Place
- Greensted (CM5)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Greensted
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
Look out for any of the following:
- Sealant pulling away from one side of the joint
- Hard, crazed mastic that has stopped moving
- Moss and dirt in joints with no sealant left
- Movement joints with cracked, split or missing sealant
Schools such as Chipping Ongar Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Comparing quotes
- How the colour is chosen
- Are they insured?
- What the cure time is
- How much experience the applicator has
Walls and rooflines in Greensted
With historic houses such as Hill Hall (about 3.8 miles south-west) nearby, there’s older building stock in the area around Greensted as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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 Greensted Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Greensted is about 5 miles east of Epping, in Essex. For external mastic in and around Greensted, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover Essex from our Crawley base. Greensted is one of 644 places in Essex where we work for external mastic. There’s also a page for Chelmsford, about 11 miles away.
Work in CM5 works the same way as everywhere else we cover. Other places close to Greensted include Chipping Ongar (1 mile east), Greensted Green (1 mile west), Shelley (1 mile north-east), High Ongar (2 miles east) and Bobbingworth (2 miles north). Larger places within reach include Chelmsford (11 miles east), Basildon (13 miles south-east), Harlow (7 miles north-west), Brentwood (6 miles south-east), Billericay (10 miles south-east) and Loughton (8 miles south-west).
Near you in Greensted
Locally, jobs take us to homes and businesses close to Two Brewers Public House and The Ongar Academy and the streets around them. Nearby you’ll also find St. Margaret's Hospital (4.4 miles west). For a walk, there’s Gernon Bushes.
Aftercare tips
Aftercare is simple:
- Look over the joints every year, ideally after winter
- Act on the first splits you see
- Deal with leaking gutters that soak the joints below
- Do not let climbing plants root in the sealant
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
The process
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work generally takes anything from a few hours to several days, depending on the building. For a village or hamlet like Greensted, the journey is planned in advance: 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.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Mention if the joints have been sealed before
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
How to get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work and give you a clear quote.
Advice
Greensted questions
Is there a guarantee on external mastic in Greensted?
All our work, in Greensted and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Greensted in your area for external mastic?
Yes, Greensted is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Where do you work from?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
What colours does the sealant come in?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
Also near Greensted
Also in Greensted
What happens if it’s left?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Where a wall is exposed, as many are in small places like Greensted, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
What you get with us
- Colour picked to suit the job
- 20+ years of sealant experience
- Anti-fungal sanitary silicone in wet areas
- Neat joints and a tidy finish
Take a look at what affects the cost or our reviews.
How we quote for external mastic
Your quote is based on your job. We look at:
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- Whether the work is at height
- Any mould that needs treating
Doing several joints on one visit is generally more efficient than separate visits. We will give you a clear quote for the lot.
Asking for a quote
To make quoting easier, let us know:
- The type of property
- How we’d reach the joints
- If someone has resealed it before
- Roughly how big the job is
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand.
Different surfaces, different methods
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
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.
Landlords, agents and businesses in Greensted
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.