West Sussex · England
External Mastic in Wisborough Green
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Wisborough Green. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Failed seals between different materials
- Sealant pulling away from one side of the joint
- Movement joints with cracked, split or missing sealant
Questions from Wisborough Green
Do you work for landlords with property near Billingshurst station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Do you cover smaller places like Wisborough Green?
Yes. Wisborough Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Which products do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
External mastic for homes and businesses in Wisborough Green
On houses, flats and commercial buildings across Wisborough Green, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you are dealing with sealant that has lost its bond to the brick or render and plants rooting in failed movement joints, we can help, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Wisborough Green is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
There’s a 12-month guarantee on every job, large or small.
- Place
- Wisborough Green (RH14)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way. Where a wall is exposed, as many are in small places like Wisborough Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we’ll talk you through it.
Why choose Mr Mastic in Wisborough Green
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
- Homes, businesses and hotels
- We agree the colour with you first
Read how sealant jobs are priced and customer reviews.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Walls that need new movement joints cut into them
- Movement that is more than a sealant joint can take
- Rising or penetrating damp from elsewhere in the wall
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Copings & trims
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
Places near Wisborough Green
Also in Wisborough Green
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’re 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.
What the job involves on each surface
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
The process
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere like Wisborough Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- Clear the area around the work
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Read more
Walls and rooflines in Wisborough Green
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Old Place Manor (about 4.4 miles south) nearby, there’s older building stock in the area around Wisborough Green as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near The Parish Church of St Peter Ad Vincula, old and new materials meet at the roofline and walls, which is where sealant earns its keep. For site and facilities teams at buildings such as Wisborough Green Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Wisborough Green is about 9 miles west of Horsham, in West Sussex. We provide external mastic to homes and businesses in Wisborough Green and nearby. Our West Sussex coverage runs to 371 places, and Wisborough Green is one of them. For nearby work, see our Crawley page.
Postcode districts we cover here for external mastic: RH14. If you need external mastic at a property on Balchins Close, Thornton Meadow and School Road or a nearby road, we can help. Other places close to Wisborough Green include Kirdford (2 miles west), Mackerel's Common (2 miles north-west), Ifold (3 miles north-west), Loxwood (4 miles north) and Balls Cross (4 miles west). We also work in nearby towns such as Crawley (15 miles north-east), Horsham (9 miles east), Worthing (15 miles south), Littlehampton (15 miles south), Rustington (15 miles south) and Broadfield (14 miles east).
Around Wisborough Green
Locally, jobs take us to homes and businesses close to The Cricketers Arms Public House and The Weald School, among other places. Wisborough Green’s nearest station is Billingshurst station, about 2.5 miles east of the centre. Green spaces nearby include The Mens.
What we are called out for in Wisborough Green
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
The problems people usually mention when they call include:
- Rigid filler in a joint that should flex
- Weeds or debris growing in open joints
- Failed seals between different materials
- Rain getting behind render or cladding at a joint
For landlords with property near Billingshurst station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Questions to ask before booking
- Which colour the sealant will be
- Whether VAT is included
- Whether they’re fully insured
- Is the old sealant removed completely?
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Make sure movement joints are not pointed over
- Keep soil, plants and ivy away from the joints
- Get split or bare joints resealed while the damage is small
- Leave the joints unpainted unless we’ve said otherwise
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
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.