West Sussex · England
Tisman's Common External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Tisman's Common and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old sealant gone brittle and cracked
- Leaking joints around cladding and façade panels
- Cracked joints where brick meets render or frames
Tisman's Common buildings and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near St John the Baptist, an extension built onto an older house moves differently, and the joint between them takes the strain.
Tisman's Common is about 7 miles west of Horsham, in West Sussex. Tisman's Common gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Tisman's Common is one of 371 places in West Sussex where we work. There’s also a page for Crawley, roughly 12 miles from Tisman's Common.
Postcode districts we cover here for external mastic: RH12. You will find streets such as Hornshill Lane and Loxwood Road, and we cover them all. We also cover the places around Tisman's Common: Bucks Green (1 mile east), Rudgwick (1 mile east), The Haven (2 miles south-east), Slinfold (3 miles south-east) and Five Oaks (3 miles south-east). Further out, we also cover Crawley (12 miles east), Horsham (7 miles east), Broadfield (12 miles east), Storrington (11 miles south), Billingshurst (5 miles south) and Bewbush (11 miles east).
What’s near Tisman's Common
In Tisman's Common, that means homes and buildings near Rudgwick Primary School and The Queen's Head Public House and the streets around them.
External mastic for homes and businesses in Tisman's Common
For buildings in Tisman's Common, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. Common call-outs are for cracked joints where brick meets render or frames and plants rooting in failed movement joints, across joints between brick and frames, copings & trims and render & cladding joints.
External sealant needs dry, clean surfaces, so work around Tisman's Common is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
Every job is covered by our one-year guarantee.
- Place
- Tisman's Common (RH12)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Tisman's Common
What else we do in Tisman's Common
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Don’t let climbing plants root in the sealant
- Tell anyone working on the walls about the movement joints
- Keep water from gutters off the wall
- Act on the first splits you see
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years.
Honest limits
We’ll always be straight with you, so here’s what new sealant won’t do:
- Loose or hollow render, which needs re-rendering
- Structural movement, which needs a surveyor or engineer
- Adding movement joints to masonry that has none
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Render & cladding joints
- Brickwork movement joints
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for a handful of joints, longer for a whole elevation. In a small place like Tisman's Common, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Getting a quote
For external mastic in Tisman's Common, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
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Common problems we fix in Tisman's Common
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The problems people usually mention when they call are:
- Weeds or debris growing in open joints
- Joints pointed up with cement by mistake
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
Schools such as Pennthorpe School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before booking
- Whether you can choose the colour
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
FAQs for Tisman's Common
Can you do external mastic in Tisman's Common?
Yes, Tisman's Common is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
What guarantee comes with external mastic in Tisman's Common?
All our work, in Tisman's Common and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
How long does the job take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. Your quote will say how long we expect yours to take.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint cannot move, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
Can you reach joints on upper floors?
Each building is different. Send us pictures and a rough idea of the height and we’ll confirm how they can be reached safely.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first.
Landlord and commercial work in Tisman's Common
If you manage several properties in or around Tisman's Common, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
We also work for property managers and facilities teams in Tisman's Common and across West Sussex. Several sites can be quoted together, and we are fully insured for the work.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
How we quote for external mastic
Your quote is based on your job. We take into account:
- The amount of work
- The type of sealant required
- Access and height
- The old material and how stubborn it is
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Helping us quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- Whether it’s a home or a business
- The address or postcode of the job
- The rough size of the job
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.