Bracknell Forest · England
External & façade joints in Hanworth, Bracknell Forest
We cover Hanworth for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Joints with sealant missing in places
External mastic in Hanworth, done properly
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. We work on brickwork movement joints, concrete & block and render & cladding joints, and people most often call us about sealant that has lost its bond to the brick or render and weeds or debris growing in open joints.
In and around Hanworth, 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.
All our work comes with our one-year guarantee.
- Location
- Hanworth (RG12, RG40)
- Wider area
- Bracknell Forest
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need external mastic in Hanworth
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
Signs it’s time to call us include:
- Failed sealant between panels on a façade
- Joints where the bead has come unstuck
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
Managing a site like The Pines School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before you book anyone
- Who turns up on the day
- Are they insured?
- Whether you can choose the colour
- When the joint can take water or movement
What sealant work cannot fix
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Hanworth
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
What external mastic looks like in Hanworth
Hanworth is part of Bracknell, one of the post-war new towns. Many homes date from the post-war decades and were built in phases, so whole streets can have gutters, trims and wall joints reaching the end of their life together. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to St Michael and St Mary Magdalene's Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. If you let a flat or house near Bracknell station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Hanworth is about 1 mile south of Bracknell, in Bracknell Forest. Every kind of property in Hanworth is covered for external mastic. The work is guaranteed for a year. We cover 41 towns and villages across Bracknell Forest, large and small. You can also see our page for Reading, about 10 miles away.
We cover every part of RG12 and RG40 for external mastic. That includes homes and businesses on Hanworth Road, Waterham Road and Crowthorne Road and the roads around them. Close by, we work in Birch Hill (1 mile east), Wooden Hill (1 mile west), Great Hollands (1 mile north-west), Home Farm (1 mile west) and Crown Wood (1 mile north-east). Larger places within reach include Sandhurst (3 miles south), Lawrence Hill (3 miles north), Binfield (3 miles north), Quelm Park (3 miles north), Whitegrove (3 miles north-east) and College Town (4 miles south).
Near you in Hanworth
Typical jobs here are in homes near Easthampstead Park Community School, The Brakenhale School and Golden Retriever pub. The nearest railway station is Bracknell station, about 1.5 miles north of the centre. Nearby you’ll also find Pinewood Hospital (1.5 miles west) and Small Arms School Corps Weapons Collection (3.6 miles south). For a walk, there’s Wildmoor Heath and Heath Lake.
What affects the quote in Hanworth
We quote each job individually. This is what makes a difference:
- The type of sealant required
- When we can work, for business premises
- The old material and how stubborn it is
- How easy the joints are to reach
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Asking for a quote
When you contact us, these details help:
- Access, such as stairs, a lift or height
- Photos by email, if that’s easy
- What’s wrong with the joints now
- The type of property
If you are in Hanworth and need external mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Also in Hanworth
What happens if it’s left?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. In an older home around Hanworth, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
Why Hanworth customers choose us
- An ARBOMaster approved applicator
- Homes, businesses and hotels
- 20+ years of sealant experience
- Any old sealant cut out fully, not covered over
Take a look at how sealant jobs are priced or what customers say.
Aftercare tips
Looking after new joints is easy:
- Check the sealant is paintable before painting near it
- Tell anyone working on the walls about the movement joints
- Fix overflowing gutters above sealed joints
- Do not let climbing plants root in the sealant
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Act while the splits are small. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation and we leave things clean and tidy. For a job in Hanworth, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
- Try not to wet indoor joints just before the visit
Getting a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Read more
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Questions from Hanworth
Do you work for landlords with property near Bracknell station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do older homes in Hanworth need their sealant replacing?
If it hasn’t been replaced for some years, it’s normally worth it. Sealant is a maintenance item: how long it lasts depends on use, cleaning and exposure.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What colours does the sealant come in?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before we start, matched as closely as the range allows.
How do you reach high-level joints?
Each building is different. Send us photos and a rough idea of the height.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you when we finish.