Surrey · England
External & façade joints in Gatton, Surrey
External mastic for Gatton and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
- Cracked joints where brick meets render or frames
When it isn’t the sealant
It helps to know what we cannot do:
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Loose or hollow render, which needs re-rendering
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Gatton
- Copings & trims
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
External mastic in Gatton
On houses, flats and commercial buildings across Gatton, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. Common call-outs are for moss and dirt in joints with no sealant left and joints with sealant missing in places, across render & cladding joints, concrete & block and brickwork movement joints.
External sealant needs dry, clean surfaces, so work around Gatton is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Where
- Gatton (RH2, RH1)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Gatton
More services for Gatton
How the job changes by surface
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible in all weathers.
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
How we quote for external mastic
The quote reflects the job in front of us. We take into account:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- The size of the job
- Which sealant suits the joint
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
What to tell us for a quote
When you contact us, it’s useful to know:
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details and send photos if you have them.
What we do, step by step
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the building. In a small place like Gatton, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Clear the area around the work
- Mention if the joints have been sealed before
- Tell us about any water getting in
Ask for a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Advice
Gatton: your questions answered
Is Gatton in your area for external mastic?
Yes. We work across London and the South East, and Gatton is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Merstham station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months, wherever you are.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What information do you need?
A short description and the location, with photos by email if possible. If we need more, we will ask.
Can you match the colour of my brickwork?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
What is backing rod for?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only.
Can you quote for more than one area?
Yes. Just list everything you need and you will get one quote.
Gatton buildings and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near St Andrew's Church, an extension built onto an older house moves differently, and the joint between them takes the strain. For site and facilities teams at buildings such as Lime Tree Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Gatton is about 2 miles north of Redhill, in Surrey. From the centre of Gatton to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Surrey coverage runs to 395 places, Gatton among them. We also work in Crawley, around 11 miles away.
We cover every part of RH2 and RH1 for external mastic and the streets around it. You’ll find streets such as Rocky Lane and Gatton Bottom, and we cover them all. Close by, we work in South Merstham (1 mile east), Holmethorpe (1 mile south-east), Merstham (1 mile north-east), Mugswell (1 mile north-west) and Redhill (2 miles south). We also work in nearby towns such as Epsom (7 miles north-west), Horley (6 miles south), Ewell (7 miles north-west), Walton-on-Thames (13 miles north-west), Caterham (4 miles north-east) and Dorking (7 miles west).
Local landmarks in Gatton
Around Gatton, our work takes us to homes and buildings near East Surrey College, Nutfield Marshes and St Bede's School and the streets around them. For rail, the closest station is Merstham station, roughly 1 mile east. Other landmarks nearby include East Surrey Hospital (3.1 miles south) and The Belfry (1.6 miles south). The countryside around Gatton includes Colley Hill and Mercers Lake.
Do you need external mastic in Gatton?
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
It’s worth asking for a quote if you see:
- Leaking joints around cladding and façade panels
- Water getting into walls through failed joints
- Old sealant gone brittle and cracked
- Cracked joints where brick meets render or frames
Letting a property close to Merstham station? Then split movement joints are easy to miss on a rental until damp shows inside.
Before booking anyone
- What happens if they find a problem under the old sealant
- Whether all the old sealant comes out first
- Is VAT in the price?
- Which sealant they’ll use, and why
Landlord and commercial work in Gatton
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Letting agents and landlords in Gatton can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.