Slough · England
External & façade joints in Upton, Slough
We cover Upton for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Plants rooting in failed movement joints
- Joints with sealant missing in places
- Rain getting behind render or cladding at a joint
External mastic in Upton, done properly
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. If you have old sealant gone brittle and cracked and weeds or debris growing in open joints, we can put it right, on brickwork movement joints, concrete & block and render & cladding joints alike.
Around Upton, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Upton (SL1, SL3, SL2)
- Region
- Slough
- Cover
- A year, on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Signs you need external mastic in Upton
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint.
Most people get in touch when they notice something like this:
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
- Movement joints filled with mortar instead of sealant
- Gaps where render, brick and frames meet
Managing a site like St Mary's Church of England Primary School? Then larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- What the quote includes, VAT included or not
- How hidden problems are handled
- Whether they seal over old material or remove it
- Which colour the sealant will be
Quotes for external mastic in Upton
Every job gets its own quote. These are the things that affect it:
- Whether there’s mould to deal with
- The number of rooms or windows
- When we can work, for business premises
- The amount of work
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
To make quoting easier, please include:
- A few photos by email, if you can
- If someone has resealed it before
- The problem you’ve noticed
- The address or postcode of the job
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
What sealant work can’t fix
We won’t take on work that won’t last, so these are the limits:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracked brickwork or render that needs a builder or plasterer
- Subsidence or other structural problems
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Façade panels
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
Upton buildings and the weather
With historic houses such as Windsor Castle (about 1.5 miles south-west) nearby, there’s older building stock in the area around Upton as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Slough station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around Church of St Laurence, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Upton is about 1 mile south-east of Slough, in Slough. Across the SL1 area, we can carry out external mastic at your property. Our Slough coverage runs to 31 places, and Upton is one of them. You can also see our page for Reading, about 17 miles away.
Work in SL1, SL3 and SL2 is quoted and booked the same way as anywhere else. That includes homes and businesses on Mere Road, Upton Road and High Street. Being close to the M4 and A332, Upton is simple for us to get to. Other places close to Upton include Middlegreen (2 miles east), Langley (2 miles east), George Green (2 miles north-east), Wexham Court (2 miles north) and Wexham Street (3 miles north). We also work in nearby towns such as Britwell (3 miles north-west), Burnham (3 miles north-west), Stoke Poges (3 miles north), Huntercombe (3 miles north-west), Farnham Common (4 miles north) and Farnham Royal (3 miles north-west). Being one of Slough’s larger places, Upton has homes, rented property and businesses of every kind.
Local landmarks in Upton
Typical jobs here are in homes near The Red Cow Public House, Upton Court Grammar School and Long Close School. The nearest railway station is Slough station, about 0.6 miles north. Other landmarks nearby include Windsor Castle (1.5 miles south-west) and Museum of Eton Life (1.2 miles south-west). The countryside around Upton includes Stoke Common and Taplow Lake.
Upton: your questions answered
Do you cover Upton for external mastic?
Yes. Our work covers London and the South East, and Upton is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Do you work for landlords with property near Slough station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Is there a guarantee?
Yes. Every job comes with a one-year guarantee.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
How do you reach high-level joints?
Each building is different. Send us pictures and a rough idea of the height and we will confirm how they can be reached safely.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Towns and villages near Upton
Other services in Upton
The process
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before work begins. Most jobs take anything from a few hours to several days, depending on the building. In a smaller place like Upton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
How to get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Advice
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, 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.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Different surfaces, different methods
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Render joints
The face of render can be soft, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Why deal with it now?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the problem grows beyond the joint itself. Homes in smaller places like Upton can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What you get with us
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- White, clear, grey or another colour, product permitting
- A sealant colour to suit the surroundings
Take a look at how sealant jobs are priced and our reviews.