Oxfordshire · England

External & façade joints in Shellingford, Oxfordshire

External mastic across Shellingford and nearby, with old sealant always removed completely and a 12-month guarantee.

  • Hard, crazed mastic that has stopped moving
  • Joints with sealant missing in places
  • Joints pointed up with cement by mistake

Book external mastic in Shellingford

What we do, step by step

There’s no need to move everything out, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of joints, longer for a whole elevation in most cases. For a village or hamlet like Shellingford, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. Each joint is checked and the colour of the new sealant agreed.
  2. Failed sealant is removed back to clean, sound faces.
  3. Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
  4. Primer is applied wherever the sealant needs it.
  5. We gun in low-modulus sealant and tool it neatly.

Preparing for the visit

  • Move anything stored near the joints
  • Mention any tricky access
  • Mention any parking rules near the property

Get a quote

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.

Get a quick quote

Related advice

About our external mastic in Shellingford

Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on copings & trims, joints between brick and frames and brickwork movement joints, and common reasons people get in touch are damp patches traced to an open external joint and movement joints filled with mortar instead of sealant.

Outside joints can only be sealed when they’re dry, so work in Shellingford is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.

All our work comes with our 12-month guarantee, wherever you are in Oxfordshire.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Shellingford (SN7)
Region
Oxfordshire
Guarantee
A year, on every job
Price
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026

How to look after the new joints

Aftercare is simple:

  • Get split or bare joints resealed while the damage is small
  • Keep movement joints as flexible joints, not mortar
  • Show decorators and builders where the movement joints are
  • Keep water from gutters off the wall

Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.

Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.

What affects the quote in Shellingford

Every job gets its own quote. This is what makes a difference:

  • Which sealant suits the joint
  • The number of rooms or windows
  • The old material and how stubborn it is
  • Whether there’s mould to deal with

The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear price before work begins.

Asking for a quote

Before you ask for a quote, have a think about:

  • If someone has resealed it before
  • Whether it’s a home or a business
  • What’s wrong with the joints now
  • Photos by email, if that’s easy

For external mastic in Shellingford, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.

Work for landlords, hotels and businesses

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Shellingford buildings and the weather

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

In the older streets around Church of St Faith, an extension built onto an older house moves differently, and the joint between them takes the strain.

Shellingford is about 6 miles north-west of Wantage, in Oxfordshire. Homes, rented property, offices and hotels in Shellingford is covered for external mastic. Every job comes with our 12-month guarantee. Shellingford is one of 443 towns and villages in Oxfordshire where we work. Oxford is on our list too, about 15 miles from Shellingford.

Every address in SN7 is within our area for external mastic. Whether your property is on Church Street and Fernham Road or anywhere close by, our applicators can take on the job. If you are just outside Shellingford, we cover Stanford in the Vale (1 mile east), Hatford (2 miles north-east), Baulking (2 miles south), Bow (2 miles east) and Fernham (2 miles south-west). Further out, we also cover Oxford (15 miles north-east), Didcot (13 miles east), Abingdon-on-Thames (11 miles east), Witney (10 miles north), Carterton (9 miles north) and Wantage (6 miles south-east).

Local landmarks in Shellingford

Typical jobs here are in homes near Faringdon Community College and the streets around them. Well-known places in the area include Faringdon Castle (1.9 miles north-west) and Faringdon Museum (2.2 miles north-west). For a walk, there’s Badbury Hill.

Map of Shellingford © OpenStreetMap contributors

Why it’s worth doing now in Shellingford

It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together. In a small place like Shellingford, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

The cost depends on how much there is to do, 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 Shellingford customers choose us

  • An ARBOMaster approved applicator
  • We leave the area clean and tidy
  • A 12-month guarantee on all work
  • Colour picked to suit the job

Take a look at how sealant jobs are priced and what customers say.

What sealant work cannot fix

We’ll always be straight with you, so here’s what sealant cannot fix:

  • Structural movement, which needs a surveyor or engineer
  • Walls that need new movement joints cut into them
  • Cracks in the bricks or render themselves, away from the joints

Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.

What we seal

  • Copings & trims
  • Brickwork movement joints
  • Render & cladding joints
  • Façade panels
  • Concrete & block
  • Joints between brick and frames

When to call us in Shellingford

Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.

Keep an eye out for these signs:

  • Failed sealant between panels on a façade
  • Joints pointed up with cement by mistake
  • Movement joints with cracked, split or missing sealant
  • Weeds or debris growing in open joints

Schools such as Shellingford Church of England (Voluntary Aided) School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.

Before you book anyone

  • How the surfaces are prepared before sealing
  • What the cure time is
  • What happens if the job turns out different
  • Whether they seal over old material or remove it

Choosing a sealant specialist

Common questions in Shellingford

What guarantee comes with external mastic in Shellingford?

All our work, in Shellingford and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.

Do you cover smaller places like Shellingford?

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.

Will you leave a mess?

Not at all. We work neatly, protect the area around the joints and tidy up afterwards.

How do I get a quote for external mastic in Shellingford?

It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or drop us an email and tell us what needs doing and where.

Can new sealant go over the old?

No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.

Can I add another job to the visit?

Yes, we can. Several rooms, windows or areas can go on one quote.

What sealant do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

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.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job