Slough · England
External Mastic in Farnham Common
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Farnham Common. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting behind render or cladding at a joint
- Gaps where render, brick and frames meet
- Joints where the bead has come unstuck
External mastic for homes and businesses in Farnham Common
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. Typical jobs include sealant that has lost its bond to the brick or render and leaking joints around cladding and façade panels, across concrete & block, brickwork movement joints and copings & trims.
External sealant needs dry, clean surfaces, so work around Farnham Common is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Farnham Common (SL2)
- Region
- Slough
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Farnham Common
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Places near Farnham Common
Also in Farnham Common
Farnham Common questions
I let a flat near Burnham station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Farnham Common in your area for external mastic?
Yes, Farnham Common is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Do you have insurance?
Yes, we are fully insured for every job we do.
Is the work guaranteed?
Yes. Every job comes with a 12-month guarantee.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall. Exterior sealants come in a good range of colours.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or send us an email.
Common problems we fix in Farnham Common
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall.
Signs it’s time to call us include:
- Old sealant gone brittle and cracked
- Cracked joints where brick meets render or frames
- Plants rooting in failed movement joints
- Movement joints filled with mortar instead of sealant
Letting a property close to Burnham station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- What preparation is included
- How long the guarantee is
- Which sealant they’ll use, and why
- Is the old sealant removed completely?
Different surfaces, different methods
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it so the sealant isn’t too deep.
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.
Why act early in Farnham Common
Water gets in through a failed movement joint. Resealing early keeps the job to the joint itself, rather than the wall around it. Around Farnham Common, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- We never seal over old sealant
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
Outside joints around Farnham Common
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Cliveden (about 3.3 miles west) are a reminder that the area around Farnham Common 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.
Schools such as Farnham Common Junior School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to St John the Evangelist include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Farnham Common is about 3 miles north of Slough, in Slough. Homes, rented property, offices and hotels in Farnham Common can book us for external mastic. Every job comes with our one-year guarantee. Farnham Common is one of 31 places in Slough where we work for external mastic. Reading is on our list too, around 17 miles away.
Here we cover the SL2 postcode area for external mastic. You will find streets such as Temple Way, Common Wood and Badgers Wood, and we cover them all. Other places close to Farnham Common include Egypt (1 mile north-west), East Burnham (1 mile south-west), Hedgerley (1 mile north-east), Farnham Royal (1 mile south) and Littleworth Corner (2 miles west). Within a short drive, we also cover Slough (3 miles south), Cippenham (3 miles south), Chalvey (4 miles south), Langley (4 miles south-east), Upton (4 miles south) and Burnham (3 miles south-west).
What’s near Farnham Common
We work in homes and buildings around The Royal Oak pub, Cocksherd Wood and Caldicott School. Farnham Common’s nearest station is Burnham station, roughly 2.9 miles south-west. Well-known places in the area include Wexham Park Hospital (2.4 miles south-east). For a walk, there’s Burnham Beeches and Taplow Lake.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Farnham Common, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Let us know about earlier repairs to the joints
- Tell us about any water getting in
- Clear the area around the work
Getting a quote
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details, and photos are welcome.
Read more
When something else is needed
A few problems are outside what sealant work can do:
- Adding movement joints to masonry that has none
- Damp that is not coming from the joint
- Cracking across the wall rather than at a joint
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Render & cladding joints
- Façade panels
- Brickwork movement joints