Oxfordshire · England

External & façade joints in Stubbles, Oxfordshire

Movement joints in Stubbles need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Hard, crazed mastic that has stopped moving
  • Rain getting behind render or cladding at a joint
  • Panel joints letting water in

External mastic for Stubbles homes and businesses

Common questions in Stubbles

Do you cover smaller places like Stubbles?

Yes, Stubbles is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Do you cover Stubbles for external mastic?

Yes. Our work covers London and the South East, and Stubbles is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.

Do you do commercial work?

Yes. Hotels, offices and other businesses use us and we’re fully insured.

Can I add another job to the visit?

Of course. Doing several areas at once is usually more efficient.

Is it OK to seal over old sealant?

No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

How long will you be here?

As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer.

Do the sealants smell?

That depends on the sealant. Some smell for a while, some hardly at all.

What is backing rod for?

That’s 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.

How we handle external mastic in Stubbles

Low-level joints can usually be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what’s needed to reach them safely. If you have leaking joints around cladding and façade panels and rain getting behind render or cladding at a joint, we can put it right, whatever the surface.

Older homes in small places like Stubbles may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in, and they need the right sealant at the right depth.

All of our work is guaranteed for twelve months.

Where
Stubbles (RG8)
Region
Oxfordshire
Cover
12 months on all our work
Quotes
A clear price before we start
Telephone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

When something else is needed

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Walls that need new movement joints cut into them
  • Rising or penetrating damp from elsewhere in the wall
  • Cracks in the bricks or render themselves, away from the joints

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

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

Should I try it myself first?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

What we do, step by step

All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Stubbles needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First we look over the joints with you, agree which to renew and talk through access.
  2. The old mastic and anything lodged in the joint is removed.
  3. We clean both faces of the joint and prime them where the product calls for it.
  4. Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Preparing for the visit

  • Tell us about access, such as stairs, a lift or high-level joints
  • For indoor joints, keep the area dry beforehand if you can
  • Let us know about parking restrictions

How to get a quote

Need a quote? Please ring 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Related advice

External mastic in Stubbles: local notes

Historic houses like Basildon Park (about 2.5 miles north-east) are a reminder that the area around Stubbles has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.

For landlords with property near Goring & Streatley station, split movement joints are easy to miss on a rental until damp shows inside.

Stubbles is about 7 miles north-east of Thatcham, in Oxfordshire. If you need external mastic in Stubbles, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Oxfordshire from our Crawley base, Stubbles included. Stubbles is one of 443 places in Oxfordshire where we work for external mastic. Our Reading page covers work nearby.

Work in RG8 works the same way as everywhere else we cover. We also cover Ashampstead (1 mile north-west), Ashampstead Green (1 mile north-west), Upper Basildon (1 mile east), Burnt Hill (1 mile south) and New Town (2 miles east). Within a short drive, we also cover Didcot (9 miles north), Abingdon-on-Thames (14 miles north), Wantage (13 miles north-west), Henley-on-Thames (12 miles east), Grove (14 miles north-west) and Benson (10 miles north).

Around Stubbles

The nearest railway station is Goring & Streatley station, roughly 3.1 miles north-east of the centre. A little further out are Yattendon Castle (1.8 miles south-west). Green spaces nearby include Hartslock.

Map of Stubbles © OpenStreetMap contributors

Work for landlords, hotels and businesses

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.

We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.

How we quote for external mastic

For a quick quote, just ask. What matters most is:

  • How many areas need sealing
  • Any mould that needs treating
  • Any working-time requirements on site
  • Which sealant suits the joint

The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.

Helping us quote

There’s no need for technical detail. Just tell us:

  • What the problem is, such as mould, gaps, leaks or cracking
  • A few pictures by email, if you can
  • Where the job is, and your postcode
  • Roughly how big the job is

We don’t publish a price list. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.

Different surfaces, different methods

Render joints

Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.

Joints between dissimilar materials

Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.

What we’re called out for in Stubbles

Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.

Look out for any of the following:

  • Gaps where render, brick and frames meet
  • Joints pointed up with cement by mistake
  • Moss and dirt in joints with no sealant left
  • Water getting into walls through failed joints

For an older house near a landmark such as Church of St Clement, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Comparing quotes

  • Is VAT in the price?
  • How the colour is chosen
  • The length of the guarantee
  • Who turns up on the day

How to choose a mastic man

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