Oxfordshire · England
External & façade joints in Newington, Oxfordshire
External mastic across Newington and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Failed sealant between panels on a façade
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
Questions from Newington
Do you cover Newington for external mastic?
Yes, Newington is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
What guarantee comes with external mastic in Newington?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Why is there a gap in my brick wall?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
Can you reach joints on upper floors?
Each building is different. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
What colours does the sealant come in?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render.
How much does external mastic cost in Newington?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Newington, along with the rest of our area.
External mastic in Newington, done properly
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. If you have weeds or debris growing in open joints and water getting into walls through failed joints, we can put it right, on joints between brick and frames, façade panels and render & cladding joints alike.
Somewhere as small as Newington, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Newington (OX10)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Towns and villages near Newington
What else we do in Newington
Outside joints around Newington
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Garsington Manor (about 3.6 miles north-west) nearby, there’s older building stock in the area around Newington as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Homes close to Church of St Giles include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Newington is about 7 miles north-east of Didcot, in Oxfordshire. If you need external mastic in Newington, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Oxfordshire, Newington included. Newington is one of 443 towns and villages in Oxfordshire we cover. There’s also a page for Oxford, about 8 miles away.
Every address in OX10 is within our area for external mastic. Nearby, we also carry out external mastic in Great Holcombe (1 mile south), Drayton St Leonard (1 mile west), Brookhampton (1 mile north-west), Stadhampton (1 mile north) and Berrick Salome (2 miles south). Within a short drive, we also cover Oxford (8 miles north-west), Didcot (7 miles south-west), Abingdon-on-Thames (7 miles west), Thame (8 miles north-east), Wantage (14 miles west) and Henley-on-Thames (13 miles south-east).
Around Newington
We work in homes and buildings around The Catherine Wheel pub and the streets around them. A little further out are Littlemore Hospital (5.7 miles north-west) and Brightwell Castle (4.3 miles south-west). Open spaces near Newington include Wittenham Clumps and Wells Farm.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
How the job changes by surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. We cut out the old sealant and reseal with a product suited to both surfaces.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Do you need external mastic in Newington?
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
Keep an eye out for these signs:
- Cracked joints where brick meets render or frames
- Damp patches traced to an open external joint
- Weathered mastic that no longer stretches
- Sealant that has lost its bond to the brick or render
In and around Newington, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What happens if the job turns out different
- What insurance they hold
- Is VAT in the price?
- How long to leave it before use
What we do, step by step
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. For a village or hamlet like Newington, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- On commercial sites, let us know about site rules
- Mention any tricky access
- Keep children and pets away from the work area
Get a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Advice
What happens if it’s left?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. Where a wall is exposed, as many are in small places like Newington, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: 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.
Why Newington clients choose us
- Sealant colour chosen to suit
- White, clear, grey or coloured to suit, where the product allows
- Experience in homes, commercial sites and hotels
- Arbo and Everbuild products
Take a look at our cost guide and customer reviews.
What sealant work can’t fix
Before you book, it’s worth knowing the limits too:
- Structural movement, which needs a surveyor or engineer
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Render & cladding joints
- Copings & trims
- Façade panels
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames