Oxfordshire · England
External & façade joints in Shenington, Oxfordshire
Professional external mastic in and around Shenington, with every bit of old sealant taken out first and a 12-month guarantee.
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
- Joints where the bead has come unstuck
External mastic for homes and businesses in Shenington
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We work on brickwork movement joints, copings & trims and concrete & block, and people most often call us about cracked joints where brick meets render or frames and old sealant gone brittle and cracked.
External sealant needs dry, clean surfaces, so work around Shenington is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Shenington (OX15)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Shenington
We also work for property managers and facilities teams in Shenington and across Oxfordshire. We can quote a run of properties together, and we are fully insured.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Shenington: your questions answered
Can you do external mastic in Shenington?
Yes. We work across London and the South East, and Shenington is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.
What guarantee comes with external mastic in Shenington?
All our work, in Shenington and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
How long does external mastic last?
There’s no fixed answer: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
How the visit works
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. Somewhere like Shenington needs a little journey planning: 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 look at every joint and agree a colour to suit the wall.
- 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.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Clear the area around the work
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
We quote each job on its own. Just ring 0345 464 0079 or email us with the details and send photos if you have them.
Read more
Do you need external mastic in Shenington?
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
These are the problems we’re asked about most:
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Sealant pulling away from one side of the joint
- Weeds or debris growing in open joints
For an older house near a landmark such as Church of Holy Trinity, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- When the joint can take water or movement
- How long the guarantee is
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
- Check external joints each spring
- Keep water from gutters off the wall
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Also in Shenington
What sealant work can’t fix
It helps to know what we can’t do too:
- Movement that is more than a sealant joint can take
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracking across the wall rather than at a joint
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
Different surfaces, different methods
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. We choose the product to suit.
Walls and rooflines in Shenington
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Upton House (about 1.9 miles north) nearby, there’s older building stock in the area around Shenington as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
For site and facilities teams at buildings such as Shenington Church of England Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Shenington is about 5 miles west of Banbury, in Oxfordshire. From the centre of Shenington to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 443 towns and villages across Oxfordshire. You can also see our page for Oxford, about 25 miles away.
Jobs for external mastic in OX15 is quoted and booked the same way as anywhere else. Whether your property is on Rattlecombe Road, The Level and Mill Lane or anywhere close by, our applicators can take on the job. Neighbouring places we cover for external mastic include Alkerton (1 mile east), Balscote (1 mile south-east), Epwell (2 miles south-west), Shutford (2 miles south-east) and Swalcliffe (3 miles south). Further out, we also cover Banbury (5 miles east), Chipping Norton (10 miles south), Neithrop (4 miles east), Grimsbury (6 miles east), Ruscote (4 miles east) and Bloxham (6 miles south-east).
Local landmarks in Shenington
We work in homes and buildings around The Bell Inn. A little further out are Broughton Castle (4.1 miles south-east) and Horton General Hospital (5.6 miles east). For a walk, there’s Edge Hill and Woodford Bottom and Lamb's Pool.
What affects the quote in Shenington
We quote each job individually. These are the things that affect it:
- Access and height
- The type of sealant required
- Mould in or behind the old joints
- The old material and how stubborn it is
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Helping us quote
What to tell us when you ask for a quote:
- Where the property is
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
For external mastic in Shenington, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.