Oxfordshire · England

Goosey External Mastic

External mastic in Goosey from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Weathered mastic that no longer stretches
  • Cracked joints where brick meets render or frames
  • Movement joints filled with mortar instead of sealant

Book external mastic in Goosey

External mastic in Goosey, done properly

Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement where mortar or filler would crack. We work on brickwork movement joints, copings & trims and concrete & block, and the jobs we see most are movement joints filled with mortar instead of sealant and gaps where render, brick and frames meet.

In a village or hamlet like Goosey, older cottages and farm buildings often stand in the open, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Location
Goosey (SN7)
Wider area
Oxfordshire
Cover
12 months on all our work
Quotes
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026
Eleven members of the Mr Mastic team standing in front of branded white vans

What we do, step by step

Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. In a small place like Goosey, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
  2. Old sealant and any debris are cut and raked out.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Getting ready for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear items away from the joints we are working on
  • Mention any parking rules near the property

Ask for a quote

Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.

Get a price

Read more

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.

How to look after the new joints

How long the joints last depends on use and care. We suggest:

  • Never let anyone fill a movement joint with mortar
  • Keep soil, plants and ivy away from the joints
  • Deal with leaking gutters that soak the joints below
  • Have failed joints looked at early

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.

Small splits are the time to act. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.

When to call us in Goosey

Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall.

The most common problems we see are:

  • Panel joints letting water in
  • Moss and dirt in joints with no sealant left
  • Rain getting behind render or cladding at a joint
  • Joints pointed up with cement by mistake

In the older streets around Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move.

Comparing quotes

  • What the quote includes, VAT included or not
  • How hidden problems are handled
  • Whether you can choose the colour
  • When the joint can take water or movement

Choosing a sealant specialist

FAQs for Goosey

Is Goosey in your area for external mastic?

Yes, Goosey is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.

Is external mastic in Goosey guaranteed?

Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.

What do you put in the joint?

Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.

Why is there a gap in my brick wall?

Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.

Can I add another job to the visit?

Yes. Tell us about everything you’d like done and you will get one quote.

Can you seal joints between render and window frames?

Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces, primed where needed.

Are you ARBOMaster approved?

Yes. We are approved under the ARBOMaster scheme.

Goosey buildings and the weather

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

Around Goosey, as everywhere, external mastic is only as good as the preparation behind it.

Goosey is about 4 miles north-west of Wantage, in Oxfordshire. We provide external mastic to homes and businesses in Goosey, as part of our work across Oxfordshire. Our Oxfordshire coverage runs to 443 places, Goosey among them. There’s also a page for Oxford, roughly 14 miles from Goosey.

Our applicators cover all of SN7 for external mastic. Neighbouring places we cover for external mastic include Denchworth (2 miles east), Charney Bassett (2 miles north-east), Lyford (3 miles north-east), Grove (3 miles east) and Pusey (3 miles north). Larger places within reach include Oxford (14 miles north-east), Didcot (10 miles east), Abingdon-on-Thames (10 miles north-east), Witney (11 miles north), Carterton (11 miles north-west) and Wantage (4 miles south-east).

What’s near Goosey

Around Goosey, our work takes us to homes and buildings near The Pound Public House, among other places. Nearby you will also find Longworth Hospital (4.8 miles north-west) and Faringdon Castle (4.3 miles north-west). Open spaces near Goosey include Chain Hill and Letcombe Valley.

Map of Goosey © OpenStreetMap contributors

What the job involves on each surface

Brickwork movement joints

Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.

Render joints

Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.

What affects the quote in Goosey

We quote each job individually. This is what makes a difference:

  • The number of rooms or windows
  • How easy the joints are to reach
  • Mould in or behind the old joints
  • Any working-time requirements on site

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.

Helping us quote

What to tell us when you ask for a quote:

  • What’s wrong with the joints now
  • If someone has resealed it before
  • Photos by email, if that is easy
  • If it’s domestic, commercial or a hotel

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

When it is not the sealant

Honest advice matters more to us than a booking, so here’s what new sealant will not do:

  • Movement that’s more than a sealant joint can take
  • Loose or hollow render, which needs re-rendering
  • Damp from another source, such as a leaking gutter or a bridged damp-proof course

If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.

Joints and surfaces we work on

  • Render & cladding joints
  • Façade panels
  • Joints between brick and frames
  • Copings & trims
  • Brickwork movement joints
  • Concrete & block
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job