Windsor and Maidenhead · England
Cox Green External Mastic
Problem with your movement joints in Cox Green? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Moss and dirt in joints with no sealant left
- Brick movement joints where the sealant has split
- Sealant pulling away from one side of the joint
When to call us in Cox Green
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
Any of these means the joints need attention:
- Cracked joints where brick meets render or frames
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
- Sealant pulling away from one side of the joint
If you look after a building such as Wessex Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Before booking anyone
- Whether all the old sealant comes out first
- Which colour the sealant will be
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
About our external mastic in Cox Green
For buildings in Cox Green, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean joint faces and the right depth. If you’re dealing with brick movement joints where the sealant has split and cracked joints where brick meets render or frames, we can help, on façade panels, concrete & block and joints between brick and frames alike.
In and around Cox Green, older properties sit alongside newer ones, each with its own outside joints. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
You get a 12-month guarantee, the same in Cox Green as everywhere else we work.
- Where
- Cox Green (SL6)
- Region
- Windsor and Maidenhead
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Cox Green
Other services in Cox Green
Quotes for external mastic in Cox Green
Every job gets its own quote. This is what makes a difference:
- The number of rooms or windows
- Whether the work is at height
- Any mould that needs treating
- The old material and how stubborn it is
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to several days, depending on the building. For a job in Cox Green, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job.
Related advice
Outside joints around Cox Green
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Dorney Court (about 3.2 miles east) nearby, there’s older building stock in the area around Cox Green as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Maidenhead station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. For an older house near a landmark such as All Saints' Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Cox Green is about 1 mile south-west of Maidenhead, in Windsor and Maidenhead. Every kind of property in Cox Green can book us for external mastic. The work is guaranteed for a year. Across Windsor and Maidenhead, we cover 57 places, Cox Green among them. Our Reading page covers work nearby.
Here we cover the SL6 postcode area for external mastic. External mastic is available to properties on Lock Lane, Curls Road and Thrift Lane and the roads around them. With the A404(M) close by, Cox Green is simple for us to get to. We also cover the places around Cox Green: Boyn Hill (1 mile north-east), Maidenhead (1 mile north-east), Woolley Green (1 mile west), Bray Wick (1 mile east) and Pinkneys Green (2 miles north-west). Within a short drive, we also cover Windsor (5 miles south-east), North Ascot (7 miles south), Cookham (3 miles north), Dedworth (5 miles south-east), Broomhall (9 miles south-east) and South Ascot (8 miles south). Cox Green is among the bigger towns we cover in Windsor and Maidenhead.
Local landmarks in Cox Green
Typical jobs here are in homes near Ockwells Park, The Crown pub and Cox Green School and the streets around them. The nearest railway station is Maidenhead station, about 1.1 miles north-east of the centre. Nearby you will also find St Mark's Hospital (1.2 miles north) and The Reitlinger Bequest Museum (1.9 miles north-east). The countryside around Cox Green includes Weycock Hill and Taplow Lake.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, 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.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Cox Green: your questions answered
Do you work for landlords with property near Maidenhead station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover smaller places like Cox Green?
Yes. Cox Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before work begins, matched as closely as the range allows.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
What is a movement joint?
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.
Landlord and commercial work in Cox Green
For anyone letting property in or around Cox Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
How the job changes by surface
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best in all weathers.
What we can’t put right
Sealant isn’t the answer to every problem, and we will tell you before work begins. It won’t solve:
- Structural movement, which needs a surveyor or engineer
- Render that is blown, hollow or coming away
- Walls that need new movement joints cut into them
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Surfaces we seal
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Façade panels