Surrey · England
External Mastic in South Godstone
Problem with your movement joints in South Godstone? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed seals between different materials
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
Why it’s worth doing now in South Godstone
Resealing a run of joints in one go is generally better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. Where a wall is exposed, as many are in small places like South Godstone, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why South Godstone customers choose us
- 12-month guarantee on every job
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
- Sealant colour chosen to suit
Read what affects the cost or what customers say.
About our external mastic in South Godstone
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing, and we do not skip that step. Common call-outs are for water getting into walls through failed joints and sealant that has lost its bond to the brick or render, on façade panels, brickwork movement joints and joints between brick and frames.
Somewhere as small as South Godstone, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.
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
- South Godstone (RH9)
- Region
- Surrey
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Walls and rooflines in South Godstone
The South East is one of 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 Titsey Place (about 4.9 miles north-east) nearby, there’s older building stock in the area around South Godstone as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
If you let a flat or house near Godstone station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. For site and facilities teams at buildings such as St Stephen's CofE Primary School, larger buildings have long runs of movement joint that eventually need resealing.
South Godstone is about 5 miles south of Caterham, in Surrey. Our applicators cover external mastic for homes and businesses in South Godstone. Our Surrey coverage runs to 395 places, South Godstone among them. Our Crawley page covers work nearby.
Postcode districts we cover here for external mastic: RH9. Streets in the area include Eastbourne Road, Oaklands and Woodlands Drive. Nearby, we also carry out external mastic in Crowhurst Lane End (1 mile east), Anglefield Corner (1 mile south-west), Tandridge (1 mile north-east), Crowhurst (2 miles south-east) and Church Town (2 miles north). We also work in nearby towns such as Epsom (12 miles north-west), Horley (6 miles south-west), Redhill (5 miles west), Ewell (13 miles north-west), Reigate (7 miles west) and Caterham (5 miles north).
What’s near South Godstone
Locally, jobs take us to homes and businesses close to Fox And Hounds Public House and Tilburstow Hill, among other places. South Godstone has its own railway station: Godstone station. A little further out are Bletchingley Castle (2.9 miles north-west) and Haxted Watermill Museum (3.9 miles south-east). Green spaces nearby include Mercers Lake and Bay Pond.
What happens on the day
On the day, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work starts. The work usually takes anything from a few hours to several days, depending on the building. Somewhere like South Godstone needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.
Read more
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep soil, plants and ivy away from the joints
- Ask before painting over external sealant
- Tell anyone working on the walls about the movement joints
- Walk round the building once a year and look at the joints
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
Common problems we fix in South Godstone
Sometimes a movement joint was filled with mortar or a rigid filler by mistake. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Look out for any of the following:
- Water getting into walls through failed joints
- Sealant that has lost its bond to the brick or render
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
For an older house near a landmark such as St Stephen, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What your quote should include
- What the quote includes, VAT included or not
- When the joint can take water or movement
- How much experience the applicator has
- How the joint is cleaned and prepared
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Façade panels
- Copings & trims
- Render & cladding joints
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.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Surface by surface
Copings and trims
Metal and stone copings both move with temperature, so a flexible sealant suits them best in all weathers.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.
South Godstone questions
Do you cover smaller places like South Godstone?
Yes. South Godstone is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is South Godstone in your area for external mastic?
Yes. Our work covers London and the South East, and South Godstone is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
How long does external mastic last?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can you work on commercial sites?
Yes. Larger jobs can be planned room by room or area by area.
Do you work for landlords and businesses?
Yes. Domestic, commercial and hotel work are all part of what we do.