West Sussex · England
Tinsley Green Sand Mastic
Sand mastic across Tinsley Green and nearby, with every bit of old sealant taken out first.
- Mastic dropping out of the joint
- Mastic worn away on windows facing the weather
- Silicone on a period window that looks wrong
Sand mastic for homes and businesses in Tinsley Green
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Common call-outs are for mastic round period door frames that has failed and draughty sash windows at the surround, across sash and case windows, timber door frames and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Tinsley Green is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, in Tinsley Green and everywhere else we cover.
- Place
- Tinsley Green (RH10)
- Region
- West Sussex
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for sand mastic in Tinsley Green
Every job gets its own quote. These are the things that affect it:
- The size of the job
- How easy the joints are to reach
- Any mould that needs treating
- Working hours on commercial sites
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- The problem you’ve noticed
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
When to call us in Tinsley Green
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
Any of these means the joints need attention:
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
In the older streets around St Michael and All Angels Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- Is VAT in the price?
- Which colour the sealant will be
- What insurance they hold
- What the cure time is
Questions from Tinsley Green
Will you come out to Tinsley Green?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Tinsley Green in your area for sand mastic?
Yes. We work across London and the South East, and Tinsley Green is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.
How long will you be here?
That depends on how much there is to do, but as a guide it takes a few hours for a single window, longer for several. We’ll give you a better idea when we quote.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Go gently near the mastic when preparing windows
- Look over the window mastic once a year
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Towns and villages near Tinsley Green
More services for Tinsley Green
Why act early in Tinsley Green
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new mastic stays put. Older cottages and farmhouses around Tinsley Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Old sealant always removed completely
- Neat joints and a tidy finish
- Fully insured
Windows and doors in Tinsley 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.
For landlords with property near Gatwick Airport station, older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Forge Wood Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Tinsley Green is about 3 miles south of Horley, in West Sussex. Whether you are in the middle of Tinsley Green or further out, we cover sand mastic for every kind of property. Tinsley Green is one of 371 places in West Sussex we cover.
We work across RH10 for sand mastic. You’ll find streets such as Radford Road and Steers Lane. Neighbouring places we cover for sand mastic include Forge Wood (1 mile south), Shipley Bridge (1 mile north-east), Fernhill (1 mile north-east), Copthorne (1 mile east) and Burstow (1 mile north-east). Further out, we also cover Crawley (3 miles south-west), Horsham (9 miles south-west), Haywards Heath (10 miles south), Burgess Hill (13 miles south), East Grinstead (6 miles east) and Broadfield (4 miles south-west).
Near you in Tinsley Green
Typical jobs here are in homes near The Gatwick School, Worth Park Gardens and Hazelwick School. For rail, the closest station is Gatwick Airport station, about 1 mile north of the centre. Well-known places in the area include Langley Green Hospital (1.8 miles south-west) and County Mall (2.4 miles south-west). The countryside around Tinsley Green includes Tilgate Lake.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How the visit works
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job usually takes a few hours for a single window, longer for several, and we explain the cure time before we leave. For a village or hamlet like Tinsley Green, the journey is planned in advance: 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.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- Clear the area around the work
Ask for a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
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When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Damaged stone surrounds
- Sashes that rattle, stick or won’t open
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
What we seal
- Period & listed homes
- Brick reveals
- Tenement windows
- Stone surrounds
- Timber door frames
- Sash and case windows