Essex · England
Galleywood External Mastic
We cover Galleywood for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Hard, crazed mastic that has stopped moving
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
External mastic in Galleywood, done properly
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. If you have failed sealant between panels on a façade and joints with sealant missing in places, we can help, whatever the surface.
In a smaller place like Galleywood, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are generally the first to go.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- Galleywood (CM2)
- Wider area
- Essex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
A few problems are outside what sealant work can do:
- Loose or hollow render, which needs re-rendering
- Damp that is not coming from the joint
- Adding movement joints to masonry that has none
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Galleywood
- Brickwork movement joints
- Façade panels
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
For landlords and businesses
Letting agents and landlords in Galleywood can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Places near Galleywood
What else we do in Galleywood
What affects the quote in Galleywood
The price is agreed before any work begins. It takes into account:
- The amount of work
- The type of sealant required
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
What to tell us when you ask for a quote:
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
How it works
Before we leave, we go over the finished joints with you. The visit itself usually takes anything from a few hours to several days, depending on the building, depending on the size of the job. Parking around Galleywood is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Clear items away from the joints we are working on
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Ask for a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Related advice
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Wash walls gently around the sealant
- Deal with leaking gutters that soak the joints below
- Look over the joints every year, ideally after winter
- Act on the first splits you see
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
Galleywood buildings and the weather
Historic houses like Hylands (about 1.8 miles north-west) are a reminder that the area around Galleywood has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as St Michael's Church of England Voluntary Aided Junior School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Homes close to Church of St Michael and All Angels include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Galleywood is about 3 miles south of Chelmsford, in Essex. If you need external mastic in Galleywood, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Essex from our Crawley base. 644 places in Essex are on our list, large and small.
All of CM2 is within our area for external mastic, from the main roads to the quietest streets. That includes homes and businesses on The Street, Attwoods Close and Markland Close and the roads around them. We also cover Margaretting Tye (2 miles south-west), Margaretting (3 miles west), Stock (3 miles south-west), Ramsden Heath (4 miles south) and Downham (4 miles south). We also work in nearby towns such as Chelmsford (3 miles north), Basildon (9 miles south), Braintree (13 miles north), Brentwood (9 miles south-west), Maldon (9 miles east) and Canvey Island (13 miles south).
What’s near Galleywood
Locally, jobs take us to homes and businesses close to Great Baddow High School, Galleywood Common and The Eagle Public House. For rail, the closest station is Chelmsford station, roughly 2.6 miles north. Other landmarks nearby include Peter Edwards Museum And Library (2.3 miles north) and Baddow Hospital (1.3 miles east). For a walk, there’s Hanningfield Reservoir.
Different surfaces, different methods
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
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.
FAQs for Galleywood
Do you work for landlords with property near Chelmsford station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Will you come out to Galleywood?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can a movement joint be filled with mortar?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. We’ll talk through colour options before work begins.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
What should I tell you?
A short description and the location, plus pictures if you have them. We will ask anything else we need to know.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
What we are called out for in Galleywood
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
It’s worth asking for a quote if you see:
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
- Plants rooting in failed movement joints
- Damp patches traced to an open external joint
Rented homes near Chelmsford station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Before you book anyone
- Whether all the old sealant comes out first
- What the cure time is
- How the colour is chosen
- Which sealant they’ll use, and why