South East England and London

External Mastic in Slough

Covering 31 places across Slough for external mastic, with every joint properly prepared, with a clear quote before we start and a one-year guarantee.

External Mastic across Slough

Call 0345 464 0079

Get a quick quote

Towns we cover in Slough

Sealing brickwork movement joints, render, cladding and façade joints. Choose your town from the list to see local details, and get in touch for a quick quote.

Largest places

Also in Slough

Postcodes in Slough

How external mastic works in Slough

For buildings in Slough, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. We work on façade panels, concrete & block and joints between brick and frames, and the jobs we see most are sealant that has lost its bond to the brick or render and failed seals between different materials.

There’s no need to move everything out before we come, 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.

Each joint is checked and the colour of the new sealant agreed.
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.

Pricing in Slough

Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why choose Mr Mastic

Over 20 years’ experience
Trusted Arbo and Everbuild sealants
A 12-month guarantee on all work
Any old sealant cut out fully, not covered over

Get a quote

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.

Local landmarks in Slough

Around Slough, our work takes us to homes and buildings near Herschel Grammar School, St Michael and All Angels and Westgate School and the streets around them. Also close by are Herschel Park (1.1 miles south-east), The Godolphin Junior Academy (0.6 miles north) and The Moon and Spoon pub (0.6 miles south-east). The closest station to Slough is Slough station, roughly 0.7 miles east. A little further out are Upton Hospital (0.9 miles south-east) and Windsor Castle (2.1 miles south). The countryside around Slough includes Taplow Lake and Burnham Beeches.

Outside joints across Slough

Across Slough, from Cippenham, Chalvey and Britwell outwards, outside joints range from old gutters to modern movement joints. Each needs a sealant that can move, laid at the right depth.

From Victorian terraces to post-war new towns and modern estates, homes across the South East and London cover every era. The right sealant depends on the age and materials of the building, wherever it is in Slough.

Slough: If you live in an older home near St Michael and All Angels, an extension built onto an older house moves differently, and the joint between them takes the strain. Rented homes near Slough station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.

What we’re called out for in Slough

Sometimes a movement joint was filled with mortar or a rigid filler. With the joint locked solid, the movement turns into cracks elsewhere in the wall.

These are the problems we’re asked about most:

Movement joints filled with mortar instead of sealant
Rain getting behind render or cladding at a joint
Brick movement joints where the sealant has split
Leaking joints around cladding and façade panels

What happens if it’s left?

Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs.

What your quote should include

What happens if the job turns out different
How the colour is chosen
What the cure time is
Who does the work, and how experienced they are

Looking after it afterwards

No joint lasts for ever, but care makes a real difference. Our tips:

Fix overflowing gutters above sealed joints
Wash walls gently around the sealant
Keep soil, plants and ivy away from the joints
Keep movement joints as flexible joints, not mortar

Only paint over the joint if we’ve confirmed the sealant can take paint. Paint can crack on a flexible joint.

Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.

What affects the quote in Slough

There’s no set price list, because jobs vary so much. What we look at:

Mould in or behind the old joints
When we can work, for business premises
How easy the joints are to reach
The type of sealant required

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.

What we need to know

The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:

Where the property is
A few pictures by email, if you can
The problem you’ve noticed
Whether it has been sealed before

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.

How the job changes by surface

Brickwork movement joints

People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant where it can be done safely.

Render joints

Cracks along render joints let water in behind the coat. Resealing the joints early keeps water out and helps it last.

Common questions in Slough

Do you work at height?

Each building is different. Tell us the height, the number of joints and what’s below them, and we’ll confirm what access is needed.

How long should I leave it?

Different products cure at different speeds, so please follow the time we give you when we finish.

Do you seal joints where cladding meets other materials?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.

I’m a tenant. Can you help?

We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.

What’s an expansion joint in brickwork?

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.

Where is Mr Mastic based?

Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.

Why do you put foam in the joint first?

Backing rod controls the sealant depth and keeps it off the back of the joint. Then the sealant bonds to two faces and can move.