Surrey · England
External & façade joints in Charlwood, Surrey
We cover Charlwood for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Movement joints with cracked, split or missing sealant
- Moss and dirt in joints with no sealant left
- Joints pointed up with cement by mistake
Keeping the joints in good condition
After the cure time, these simple habits help:
- Check external joints each spring
- Show decorators and builders where the movement joints are
- Get split or bare joints resealed while the damage is small
- Wash walls gently around the sealant
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. Then it’s a straightforward cut-out and reseal.
External mastic for homes and businesses in Charlwood
For buildings in Charlwood, 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 façade panels, concrete & block and copings & trims, and common reasons people get in touch are joints pointed up with cement by mistake and leaking joints around cladding and façade panels.
Around Charlwood, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
You get a one-year guarantee, the same in Charlwood as everywhere else we work.
- Where
- Charlwood (RH6)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
A DIY attempt does not rule out a professional job. We cut it out and start again.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How the visit works
Once we’re on site, 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 to a few days, depending on the length of joint and the access. Somewhere as small as Charlwood, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or drop us an email.
Advice
What we can’t put right
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracking across the wall rather than at a joint
- Walls that need new movement joints cut into them
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Charlwood
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Copings & trims
Landlords, agents and businesses in Charlwood
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Landlords and letting agents in Charlwood can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Charlwood questions
Is Charlwood in your area for external mastic?
Yes. Our work covers London and the South East, and Charlwood is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
I let a flat near Ifield 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 will give you a fixed price before any work starts.
How do I get a quote for external mastic in Charlwood?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or drop us an email with a short description of the job.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
How the job changes by surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that is happened, we rake it out and reseal it properly if the joint can be cleared.
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best year round.
Nearby places to Charlwood
Other services in Charlwood
What we are called out for in Charlwood
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Movement joints filled with mortar instead of sealant
- Failed sealant between panels on a façade
- Joints where the bead has come unstuck
If you look after a building such as Charlwood Village Primary School, its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- Is VAT in the price?
- Which colour the sealant will be
- Is the old sealant removed completely?
- What product goes in the joint
Walls and rooflines in Charlwood
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.
In the older streets around Church of St Nicholas, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you let a flat or house near Ifield station, outside joints that have cracked can let damp into a rental, so check them between lets.
Charlwood is about 3 miles south-west of Horley, in Surrey. For external mastic in and around Charlwood, please call 0345 464 0079 or send us an email for a quick quote. We cover Surrey from our Crawley base, Charlwood included. 395 places in Surrey are on our list, from the larger towns to small villages.
Our applicators cover all of RH6 for external mastic. We cover properties on The Street, Yew Tree Road and Rectory Lane. If you’re just outside Charlwood, we cover Russ Hill (1 mile south-west), Norwood Hill (2 miles north), Cudworth (2 miles west), Ifieldwood (2 miles south) and Ifield (2 miles south). We also work in nearby towns such as Epsom (13 miles north), Horley (3 miles north-east), Redhill (6 miles north-east), Ewell (14 miles north), Reigate (6 miles north) and Caterham (11 miles north-east).
Local landmarks in Charlwood
In Charlwood, that means homes and buildings near The Half Moon pub and Edolph's Copse. Charlwood’s nearest station is Ifield station, roughly 2.8 miles south of the centre. Well-known places in the area include Crawley Museum (3.1 miles south-east) and County Mall (3.4 miles south-east). Open spaces near Charlwood include Tilgate Lake.