Oxfordshire · England
External & façade joints in Little Heath, Oxfordshire
Professional external mastic in and around Little Heath, with old sealant always removed completely and a 12-month guarantee.
- Movement joints with cracked, split or missing sealant
- Sealant pulling away from one side of the joint
- Old sealant gone brittle and cracked
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access. For a job in Little Heath, 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.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- 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.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
Get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work.
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External mastic in Little Heath, done properly
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. Typical jobs include brick movement joints where the sealant has split and failed sealant between panels on a façade, across concrete & block, render & cladding joints and façade panels.
In and around Little Heath, 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.
Our work is backed for twelve months.
- Location
- Little Heath (RG31, RG30)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Little Heath questions
Do you cover smaller places like Little Heath?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Little Heath in your area for external mastic?
Yes, Little Heath is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
What does external mastic cost?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides.
What is backing rod for?
That is 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.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Landlords, agents and businesses in Little Heath
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Also near Little Heath
Also in Little Heath
Leave it or put it right?
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Around Little Heath, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Little Heath
- We’re fully insured
- Colour picked to suit the job
- 12-month guarantee on every job
- 20+ years of sealant experience
Take a look at what affects the cost and what customers say.
What affects the cost of external mastic
The quote reflects the job in front of us. We take into account:
- Access and height
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
What to tell us for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- If someone has resealed it before
- Any access issues, like height or stairs
- Where the property is
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details and send photos if you have them.
Surface by surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it before the bead.
Cladding and façade panels
If the façade has a specified sealant, that’s what we use. Tell us what the building has when you get in touch.
What we cannot put right
Before you book, it’s worth knowing the limits too:
- Loose or hollow render, which needs re-rendering
- Adding movement joints to masonry that has none
- Cracking across the wall rather than at a joint
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before booking.
Where we work in Little Heath
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Façade panels
Outside joints around Little Heath
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. Historic houses like Mapledurham House (about 2 miles north-east) are a reminder that the area around Little Heath has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Letting a property close to Tilehurst station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Homes close to St Catherine of Siena include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. Schools such as Birch Copse Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
Little Heath is about 3 miles west of Reading, in Oxfordshire. Little Heath gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Oxfordshire coverage runs to 443 places, Little Heath among them.
All of RG31 and RG30 is covered for external mastic. That includes homes and businesses on City Road, Kiln Lane and Back Lane. If you are just outside Little Heath, we cover Tilehurst (1 mile east), Sulham (1 mile north-west), Tilehurst Within (1 mile east), Calcot (1 mile south) and Norcot (1 mile east). Larger places within reach include Didcot (13 miles north-west), Henley-on-Thames (8 miles north-east), Benson (11 miles north), Wallingford (10 miles north), Great Western Park (14 miles north-west) and Watlington (13 miles north).
Around Little Heath
Around Little Heath, our work takes us to homes and buildings near Fox and Hounds pub, Calcot Park and Little Heath School. The closest station to Little Heath is Tilehurst station, roughly 1.4 miles north-east of the centre. Well-known places in the area include Broad Street Mall (3.4 miles east) and Battle Hospital (2.5 miles east). Not far away are Moor Copse Nature Reserve and Hosehill Lake.