West Sussex · England
Tisman's Common Sand Mastic
We cover Tisman's Common for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
Why deal with it now?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. Older cottages and farmhouses around Tisman's Common can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why Tisman's Common customers choose us
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
- One-year guarantee on every job
- We leave the area clean and tidy
See what affects the cost and customer reviews.
Sand mastic in Tisman's Common
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you have silicone on a period window that looks wrong and patchy fillers round a sash window, we can put it right.
Somewhere as small as Tisman's Common, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
All of our work is guaranteed for twelve months, in Tisman's Common and everywhere else we cover.
- Location
- Tisman's Common (RH12)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What sand mastic looks like in Tisman's Common
The South East is one of the drier parts 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, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Tisman's Common is about 7 miles west of Horsham, in West Sussex. Whether you’re in the middle of Tisman's Common or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Tisman's Common is one of 371 towns and villages in West Sussex where we work for sand mastic. We also work in Crawley, around 12 miles away.
Postcode districts we cover here for sand mastic: RH12. Sand mastic is available to properties on Hornshill Lane and Loxwood Road and the roads around them. We also cover 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). Larger places within reach include 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
Typical jobs here are in homes near Rudgwick Primary School and The Queen's Head Public House.
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Common problems we fix in Tisman's Common
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
If you can see any of these, it’s time to have the joints looked at:
- Old cement repairs round a window that have failed
- Failed mastic on an exposed elevation
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
For site and facilities teams at buildings such as Pennthorpe School, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- How the joint is cleaned and prepared
- How long the guarantee is
- Is the old sealant removed completely?
- Is VAT in the price?
Nearby places to Tisman's Common
Other services in Tisman's Common
FAQs for Tisman's Common
Is Tisman's Common within the area you cover?
Yes, Tisman's Common is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is there a guarantee on sand 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.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Tisman's Common and the rest of West Sussex, along with the rest of our area.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Looking after it afterwards
To keep the joints looking good and working properly:
- Keep modern sealant off the mastic
- Sort the mastic before the decorators arrive
- Look over the window mastic once a year
- Keep sills and gutters clear so water drains away
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. Expect the work to take a few hours for a single window, longer for several. In a small place like Tisman's Common, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any leaks or damp you’ve noticed
- Clear the area around the work
- Keep children and pets away from the work area
How to get a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Related advice
Landlords, agents and businesses in Tisman's Common
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.