Essex · England
External Mastic in Hare Green
Sealing brickwork movement joints, render, cladding and façade joints in Hare Green, with a 12-month guarantee on every job. Call for a quick quote.
- Movement joints with cracked, split or missing sealant
- Joints pointed up with cement by mistake
- Sealant that has lost its bond to the brick or render
About our external mastic in Hare Green
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. We’re often asked to deal with damp patches traced to an open external joint and movement joints with cracked, split or missing sealant, on joints between brick and frames, copings & trims and concrete & block.
External sealant needs dry, clean surfaces, so work around Hare Green is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Our work is backed for twelve months.
- Location
- Hare Green (CO7)
- Region
- Essex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Towns and villages near Hare Green
More services for Hare Green
DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
FAQs for Hare Green
Can you do external mastic in Hare Green?
Yes, Hare Green is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Will you come out to Hare Green?
Yes. Hare 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.
Where are you based?
We work from Crawley. Our applicators cover Hare Green.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Sealant is a maintenance item, so check the joints once a year and renew it when it starts to fail.
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. It needs a flexible sealant over backing rod.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. It’s closed with backing rod and a flexible sealant.
When is the sealant fully cured?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Is there a guarantee?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Aftercare tips
A little care helps the new joints last. Our advice:
- Avoid pressure-washing directly into sealant joints
- Get split or bare joints resealed while the damage is small
- Leave the joints unpainted unless we’ve said otherwise
- Never let anyone fill a movement joint with mortar
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Small splits are the time to act. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
How we quote for external mastic
We don’t publish a price list, because no two jobs are the same. What we look at:
- Which sealant suits the joint
- Working hours on commercial sites
- Whether there’s mould to deal with
- How much there is to do
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
Photos help, but a description is a good start. Please mention:
- The rough size of the job
- How we’d reach the joints
- Pictures of the joints, sent by email
- Whether it has been sealed before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or send us an email.
External mastic in Hare Green: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Castle House (about 5 miles north) nearby, there’s older building stock in the area around Hare Green as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near Church of St George, the joints between older walls, newer extensions and the roofline need a sealant that can move. Rented homes near Great Bentley station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as St George's Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Hare Green is about 6 miles east of Colchester, in Essex. Every kind of property in Hare Green is covered for external mastic. Every job comes with our one-year guarantee. Across Essex, we cover 644 places, and Hare Green is one of them. We also work in Chelmsford, around 26 miles away.
Postcode districts we cover here for external mastic: CO7. External mastic is available to properties on Back Lane East, Harwich Road and Meadow Close and the roads around them. We also cover the places around Hare Green: Balls Green (1 mile south), Cowey Green (1 mile north), Frating Green (1 mile south), Great Bromley (1 mile north-west) and Monkey Street (1 mile east). We also work in nearby towns such as Colchester (6 miles west), Clacton-on-Sea (7 miles south-east), Harwich (10 miles east), Camulodunum (7 miles west), Greenstead (4 miles west) and Tiptree (13 miles west).
What’s near Hare Green
Around Hare Green, our work takes us to homes and buildings near Old Courthouse Inn. Hare Green’s nearest station is Great Bentley station, about 2.4 miles south-east. Well-known places in the area include Wivenhoe Chapel Museum (3.5 miles south-west). The countryside around Hare Green includes Cockaynes Wood.
Surface by surface
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and protects the render itself.
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best year round.
How it works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Hare Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- 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.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
- Tell us if parking is tricky
Get a quote
If you are in Hare Green and need external mastic, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Related advice
Why it’s worth doing now in Hare Green
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. In a small place like Hare Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why us?
- Quality sealants from Arbo and Everbuild
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- We are fully insured