Surrey · England
External Mastic in Ash Vale
Sealing brickwork movement joints, render, cladding and façade joints in Ash Vale, with a 12-month guarantee on every job. Ask us for a quote.
- Gaps where render, brick and frames meet
- Plants rooting in failed movement joints
- Failed sealant between panels on a façade
Common questions in Ash Vale
I let a flat near Ash Vale station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Is Ash Vale within the area you cover?
Yes. Ash Vale is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
What should I tell you?
Let us know what needs doing and where. If we need more, we will ask.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Why do you put foam in the joint first?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
External mastic in Ash Vale
For buildings in Ash Vale, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on joints between brick and frames, brickwork movement joints and concrete & block, and the jobs we see most are movement joints with cracked, split or missing sealant and panel joints letting water in.
Homes around Ash Vale range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Place
- Ash Vale (GU12, GU14)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
The work is kept neat and contained to the area we’re working on. The job usually takes a few hours for a handful of joints, longer for a whole elevation. In a smaller place like Ash Vale, 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 look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Advice
Walls and rooflines in Ash Vale
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Wanborough Manor (about 3.6 miles south-east) nearby, there’s older building stock in the area around Ash Vale as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near St Mary's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to Ash Vale station? Then outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as Shawfield Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Ash Vale is about 2 miles north-east of Aldershot, in Surrey. Wherever you are in the GU12 postcode area, we can carry out external mastic at your property. Ash Vale is one of 395 places in Surrey we cover. There’s also a page for Reading, roughly 17 miles from Ash Vale.
Work in GU12 and GU14 is quoted and booked the same way as anywhere else. Streets in the area include Station Road East, Station Road West and Waverley Drive, and we cover them all. Main roads around Ash Vale include the B3165 and B3166, which makes travel easy. Other places close to Ash Vale include Ash (1 mile south), North Camp (1 mile north-west), Mytchett (2 miles north), Ash Green (2 miles south-east) and Aldershot (2 miles south-west). Within a short drive, we also cover Guildford (7 miles east), Woking (7 miles north-east), Camberley (5 miles north), Farnham (5 miles south-west), Egham (14 miles north-east) and Frimley (3 miles north).
Landmarks near Ash Vale
Around Ash Vale, our work takes us to homes and buildings near Ramillies Park, The Swan pub and National Aerospace Library. The nearest railway station is Ash Vale station, roughly 0.5 miles north of the centre. Other landmarks nearby include Frimley Park Hospital (3.8 miles north) and Farnham Castle (4.7 miles south-west). Not far away are Aunt's Pool and Ash Ranges.
Why deal with it now?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In a smaller place like Ash Vale, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
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 the work is at height. We take all of that into account in your quote.
Why Ash Vale clients choose us
- Anti-fungal silicone where joints get wet
- A sealant colour to suit the surroundings
- Old sealant always removed completely
- Every job guaranteed for a year
Read our cost guide and customer reviews.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Check external joints each spring
- Deal with leaking gutters that soak the joints below
- Keep soil, plants and ivy away from the joints
- Leave the joints unpainted unless we’ve said otherwise
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
What we can’t put right
Before booking, it’s worth knowing the limits too:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before booking.
What we seal
- Brickwork movement joints
- Façade panels
- Concrete & block
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Quotes for external mastic in Ash Vale
The quote reflects the job in front of us. We look at:
- The amount of work
- The number of rooms or windows
- Which sealant suits the joint
- Mould in or behind the old joints
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What’s wrong with the joints now
- The rough size of the job
- The address or postcode of the job
- Photos by email, if that’s easy
Getting a quote is simple: tell us what needs doing and where. Photos by email help us understand the job, and we’ll take it from there.
What the job involves on each surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so the movement is taken up.
Cladding and façade panels
If the façade has a specified sealant, that is what we use. Send us any details you have about the façade.