West Sussex · England
Ifold External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Ifold, backed by a 12-month guarantee. Ask us for a quote.
- Damp patches traced to an open external joint
- Cracked joints where brick meets render or frames
- Old sealant gone brittle and cracked
Why it’s worth doing now in Ifold
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. Around Ifold, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Ifold
- A 12-month guarantee on all work
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- 20+ years of sealant experience
Take a look at how sealant jobs are priced and our reviews.
External mastic in Ifold, done properly
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. If you are dealing with failed sealant between panels on a façade and movement joints filled with mortar instead of sealant, we can help.
Older homes in small places like Ifold may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water usually gets in.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Place
- Ifold (RH14)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours to a few days, depending on the length of joint and the access, depending on the amount of work. Somewhere like Ifold 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.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or send us an email.
Advice
External mastic in Ifold: local notes
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.
If you look after a building such as Loxwood Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Ifold is about 9 miles west of Horsham, in West Sussex. Whether you’re in the middle of Ifold or further out, we cover external mastic for every kind of property, from flats and houses to offices and hotels. 371 places in West Sussex are on our list, from the larger towns to small villages. For nearby work, see our Crawley page (15 miles or so).
Here we cover the RH14 postcode area for external mastic. You’ll find streets such as Birchwood Close, The Drive and Wildacre Close. Neighbouring places we cover for external mastic include Loxwood (1 mile north-east), Plaistow (1 mile west), Alfold Bars (2 miles north-east), Mackerel's Common (2 miles south) and Durfold Wood (2 miles north-west). Larger places within reach include Crawley (15 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (11 miles south), Billingshurst (5 miles south-east) and Bewbush (14 miles east).
Around Ifold
Open spaces near Ifold include Shillinglee Lake.
Surface by surface
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.
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.
Aftercare tips
Looking after new joints is easy:
- Wash walls gently around the sealant
- Clear growth from the base of walls and joints
- Check the sealant is paintable before painting near it
- Look over the joints every year, ideally after winter
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It will not solve:
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
- Adding movement joints to masonry that has none
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Concrete & block
Do you need external mastic in Ifold?
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and tears as soon as the joint widens.
Look out for these signs:
- Joints with sealant missing in places
- Panel joints letting water in
- Movement joints filled with mortar instead of sealant
- Weathered mastic that no longer stretches
In the older streets around St John the Baptist, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- How the colour is chosen
- How the surfaces are prepared before sealing
Ifold: your questions answered
Is Ifold within the area you cover?
Yes, Ifold is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Ifold for external mastic?
Yes, Ifold is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Is the work guaranteed?
Yes. Every job comes with a one-year guarantee.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Can landlords and businesses book you?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across West Sussex.
What information do you need?
Let us know what needs doing and where, plus photos if you have them. If we need more, we’ll ask.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.
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.
Landlords, agents and businesses in Ifold
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.