Oxfordshire · England
Wheatley External Mastic
Professional external mastic in and around Wheatley, with every bit of old sealant taken out first and a 12-month guarantee.
- Hard, crazed mastic that has stopped moving
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
Quotes for external mastic in Wheatley
There’s no set price list, because jobs vary so much. What we look at:
- Access and height
- Mould in or behind the old joints
- The type of sealant required
- How many areas need sealing
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Where the property is
- If someone has resealed it before
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
External mastic for homes and businesses in Wheatley
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint does not stand out. Common call-outs are for movement joints filled with mortar instead of sealant and panel joints letting water in, on façade panels, brickwork movement joints and render & cladding joints.
In a smaller place like Wheatley, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. That’s where gutter joints and wall joints tend to fail first.
All our work is covered by a 12-month guarantee.
- Where
- Wheatley (OX33)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
On the day, we start by going over the job with you. Surfaces next to the work are protected before we start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Wheatley, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or email us.
Related advice
What happens if it’s left?
Sealing over the top of old mastic doesn’t hold for long. The new layer cannot bond properly to old, weathered material, so the old joint is cut out fully first. In an older home around Wheatley, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Wheatley clients choose us
- 180+ five-star Google reviews
- ARBOMaster approved applicator
- We leave the area clean and tidy
- Arbo and Everbuild products
Take a look at how sealant jobs are priced and our reviews.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Wash walls gently around the sealant
- Clear growth from the base of walls and joints
- Leave the joints unpainted unless we’ve said otherwise
- Deal with leaking gutters that soak the joints below
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Your questions about external mastic in Wheatley
Can you do external mastic in Wheatley?
Yes, Wheatley 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 let us know what needs doing, and we will send you a clear quote.
Do you cover smaller places like Wheatley?
Yes. Wheatley 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.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
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.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Why do you put foam in the joint first?
That’s backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only so it can flex with the joint.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll tell you what we’re using.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, wherever you are.
Towns and villages near Wheatley
What else we do in Wheatley
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Wheatley, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
What external mastic looks like in Wheatley
With historic houses such as Garsington Manor (about 2.5 miles south-west) nearby, there’s older building stock in the area around Wheatley 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. 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.
If you look after a building such as Wheatley Church of England Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Wheatley is about 4 miles east of Oxford, in Oxfordshire. Wherever you are in the OX33 postcode area, our applicators can take on external mastic. Across Oxfordshire, we cover 443 places, and Wheatley is one of them.
All of OX33 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on Church Road, High Street and Station Road and the roads around them. Close by, we work in Holton (1 mile north), Littleworth (1 mile west), Cuddesdon (2 miles south), Forest Hill (2 miles north-west) and Horspath (2 miles west). Further out, we also cover Oxford (4 miles west), Didcot (11 miles south-west), Bicester (11 miles north), Abingdon-on-Thames (8 miles south-west), Thame (7 miles east) and Kidlington (8 miles north-west).
Around Wheatley
In Wheatley, that means homes and buildings near 19 pub and Wheatley Park School and the streets around them. A little further out are Slade Hospital (2.8 miles west) and Templars Square (3.6 miles west). Open spaces near Wheatley include CS Lewis Nature Reserve and Shotover.
Common problems we fix in Wheatley
Joints sealed without backing rod, or far too deep, rarely last. If the sealant sticks to the back as well as the sides, it cannot stretch and tears as soon as the joint widens.
Common reasons people contact us include:
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
If you live in an older home near Church of St Mary, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Comparing quotes
- What happens if the job turns out different
- The length of the guarantee
- Whether they seal over old material or remove it
- Whether the sealant suits the joint