West Sussex · England
Selsfield Common Sand Mastic
Sand mastic across Selsfield Common and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Gaps between timber frames and stone or brick
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
How we handle sand mastic in Selsfield Common
Across Selsfield Common, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. Common call-outs are for crumbling sand mastic round a window and weathered mastic on the most exposed windows, on sash and case windows, timber door frames and period & listed homes.
In a village or hamlet like Selsfield Common, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Our work is backed for twelve months, in Selsfield Common and everywhere else we cover.
- Location
- Selsfield Common (RH19)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Towns and villages near Selsfield Common
Also in Selsfield Common
How it works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work generally takes a few hours for a single window, longer for several. Somewhere as small as Selsfield Common, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Move anything stored near the joints
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
Get a quote
We quote each job on its own. Simply phone 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
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Selsfield Common questions
Can you do sand mastic in Selsfield Common?
Yes, Selsfield Common is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Do you work for landlords with property near East Grinstead station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Which is right for my windows, sand mastic or modern sealant?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames generally get a flexible sealant.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access.
What does sand mastic cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or email us with a short description of the job.
How long will you be here?
It depends on the size of the job, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
Selsfield Common homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Gravetye Manor (about 0.8 miles east) are a reminder that the area around Selsfield Common has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as Church of St Leonard, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to East Grinstead station? Then any sash windows need sound mastic to keep draughts and rain out. Schools such as Turners Hill CofE Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Selsfield Common is about 4 miles south-west of East Grinstead, in West Sussex. Jobs in Selsfield Common get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our West Sussex coverage runs to 371 places, and Selsfield Common is one of them.
We cover every part of RH19 for sand mastic and the streets around it. Selsfield Common sits on or near the B2028, which makes travel easy. If you’re just outside Selsfield Common, we cover West Hoathly (1 mile south-east), Sharpthorne (2 miles south-east), Little London (2 miles south), Highbrook (3 miles south) and Ardingly (3 miles south). We also work in nearby towns such as Crawley (5 miles west), Horsham (11 miles west), Haywards Heath (6 miles south), Burgess Hill (10 miles south), East Grinstead (4 miles north-east) and Broadfield (6 miles west).
What’s near Selsfield Common
Around Selsfield Common, our work takes us to homes and buildings near The Crown Public House, among other places. Selsfield Common’s nearest station is East Grinstead station, roughly 3.5 miles north-east of the centre. A little further out are Queen Victoria Hospital (4.5 miles north-east) and Waterbury Castle (4 miles south-east). The countryside around Selsfield Common includes Hedgecourt Lake.
Quotes for sand mastic in Selsfield Common
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- How easy the joints are to reach
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Helping us quote
To help us quote quickly, please include:
- Photos by email, if that is easy
- The problem you’ve noticed
- Where the property is
- Any access issues, like height or stairs
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.
Leave it or put it right?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Around Selsfield Common, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Selsfield Common
- Arbo and Everbuild products
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
- Over 20 years’ experience
Landlord and commercial work in Selsfield Common
If you manage several properties in or around Selsfield Common, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Take care around the mastic when scraping paint
- Don’t run silicone over sand mastic
- Sort the mastic before the decorators arrive
- Look over the window mastic once a year
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
- Broken panes
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Selsfield Common
- Brick reveals
- Timber door frames
- Tenement windows
- Period & listed homes
- Stone surrounds
- Sash and case windows