Slough · England

External Mastic in Myrke

Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Myrke and across Slough. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Movement joints filled with mortar instead of sealant
  • Sealant that has lost its bond to the brick or render
  • Rain getting behind render or cladding at a joint

External mastic near Myrke

External mastic in Myrke, done properly

Getting the depth right is half the job. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. We work on concrete & block, joints between brick and frames and brickwork movement joints, and people most often call us about cracked joints where brick meets render or frames and leaking joints around cladding and façade panels.

External sealant needs dry, clean surfaces, so work around Myrke is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.

Every job is covered by a 12-month guarantee, wherever you are in Slough.

Location
Myrke (SL3)
Region
Slough
Guarantee
A year, on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Looking after it afterwards

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

  • Ask before painting over external sealant
  • Walk round the building once a year and look at the joints
  • Show decorators and builders where the movement joints are
  • Never let anyone fill a movement joint with mortar

Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint and spoil the finish.

Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.

Why it’s worth doing now in Myrke

Water gets in through a failed movement joint, behind render and cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Around Myrke, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.

What you get with us

  • Colour agreed with you before work begins
  • Every job guaranteed for a year
  • 4.9 on Google from 180+ five-star reviews
  • We leave the area clean and tidy

See what affects the cost and customer reviews.

What external mastic looks like in Myrke

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. With historic houses such as Windsor Castle (about 1.2 miles south-west) nearby, there’s older building stock in the area around Myrke as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.

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. Homes close to Church of St Laurence include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.

Myrke is about 1 mile south-east of Slough, in Slough. If you need external mastic in Myrke, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Slough from our Crawley base, Myrke included. Myrke is one of 31 towns and villages in Slough we cover for external mastic. We also work in Reading, around 17 miles away.

All of SL3 is within our area for external mastic, from the main roads to the quietest streets. Nearby, we also carry out external mastic in Ditton (1 mile south-east), Datchet (1 mile south-east), Sunnymeads (3 miles south-east), Brands Hill (3 miles south-east) and Old Windsor (3 miles south). Within a short drive, we also cover Britwell (3 miles north-west), Burnham (4 miles north-west), Stoke Poges (3 miles north), Huntercombe (3 miles north-west), Farnham Common (4 miles north) and Farnham Royal (3 miles north).

Near you in Myrke

Around Myrke, our work takes us to homes and buildings near The Red Cow Public House, Upton Court Grammar School and Herschel Park. The nearest railway station is Slough station, about 0.9 miles north of the centre. Well-known places in the area include Museum of Eton Life (0.9 miles south-west) and Upton Hospital (0.5 miles north). Not far away are Stoke Common and Taplow Lake.

Map of Myrke © OpenStreetMap contributors

What we’re called out for in Myrke

Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.

Look out for any of the following:

  • Brick movement joints where the sealant has split
  • Joints pointed up with cement by mistake
  • Gaps where render, brick and frames meet
  • Old sealant gone brittle and cracked

If you look after a building such as Long Close School, larger buildings have long runs of movement joint that eventually need resealing.

What to look for in a quote

  • Is the old sealant removed completely?
  • When the joint can take water or movement
  • Whether VAT is included
  • What guarantee comes with the work

10 questions to ask before booking

Your questions about external mastic in Myrke

Is Myrke within the area you cover?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Do you cover Myrke for external mastic?

Yes. Our work covers London and the South East, and Myrke is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.

Is it worth trying it myself?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

Can you quote for more than one area?

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

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Can you seal joints between two different materials?

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

Which products do you use?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.

How long should I leave it?

That depends on the sealant used, so please follow the time we give you when we finish.

Landlords, agents and businesses in Myrke

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

The process

There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Myrke, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each joint is checked and the colour of the new sealant agreed.
  2. We take out the old sealant until the faces are sound.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. We gun in low-modulus sealant and tool it neatly.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Mention any parking rules near the property
  • Try not to wet indoor joints just before the visit

Getting a quote

Need a quote? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before work begins.

Get a quick quote

Advice

Honest limits

A few problems are outside what sealant work can do:

  • Failed render or damaged cladding panels
  • Adding movement joints to masonry that has none
  • Structural movement, which needs a surveyor or engineer

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

What we seal

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

Can I do it myself?

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

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