East Sussex · England
High Hurstwood Sand Mastic
Window and door surrounds in High Hurstwood need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Patchy fillers round a sash window
- Gaps round a timber door in stone or brick
- Gaps where the frame meets the masonry
When it is not the sealant
Before you book, it’s worth knowing the limits too:
- Planning or listed building consent (your local planning authority decides)
- Cracked or broken glass
- Decayed frames that need repair
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Stone surrounds
- Sash and case windows
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
Sand mastic in High Hurstwood
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We work on brick reveals, timber door frames and period & listed homes, and the jobs we see most are a silicone bead on a sash window that spoils the look and mastic that needs renewing before redecorating.
Around High Hurstwood, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- High Hurstwood (TN22)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about sand mastic in High Hurstwood
Is High Hurstwood in your area for sand mastic?
Yes. We work across London and the South East, and High Hurstwood is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Do you cover smaller places like High Hurstwood?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Can old silicone round a sash window be swapped for sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
How long does sand mastic take to harden?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Why act early in High Hurstwood
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Around High Hurstwood, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
Why us?
- One-year guarantee on every job
- Trusted Arbo and Everbuild sealants
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a single window, longer for several. Somewhere like High Hurstwood needs a little journey planning: let us know about lanes, gates and parking. 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.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Get a quote
If you’re in High Hurstwood and need sand mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
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Also near High Hurstwood
Other services in High Hurstwood
What affects the quote in High Hurstwood
Every job gets its own quote. This is what makes a difference:
- Working hours on commercial sites
- Whether there’s mould to deal with
- Access and height
- The type of sealant required
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
What we need to know
To help us quote quickly, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- Any access issues, like height or stairs
- Whether it has been sealed before
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and give you a clear price.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Keep sills and gutters clear so water drains away
- Take care around the mastic when scraping paint
- Leave the new mastic unpainted
- Keep modern sealant off the mastic
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
What we are called out for in High Hurstwood
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
It’s worth asking for a quote if you see:
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
Managing a site like High Hurstwood Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- Whether all the old sealant comes out first
- What insurance they hold
- Who turns up on the day
- What happens if they find a problem under the old sealant
Sand mastic in High Hurstwood: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Holy Trinity Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Buxted station, any sash windows need sound mastic to keep draughts and rain out.
High Hurstwood is about 3 miles south-west of Crowborough, in East Sussex. Our applicators cover sand mastic for homes and businesses in High Hurstwood and nearby. We cover 289 towns and villages across East Sussex, large and small. Our Crawley page covers work nearby.
Jobs for sand mastic in TN22 is quoted and booked the same way as anywhere else. Local streets include Burnt Oak Road, Chillies Lane and Perrymans Lane. Nearby, we also carry out sand mastic in Fairwarp (1 mile west), Sweethaws (1 mile north), Five Ash Down (1 mile south-west), Crowborough (3 miles north-east) and Jarvis Brook (3 miles north-east). Further out, we also cover Lewes (11 miles south-west), Hailsham (12 miles south-east), Uckfield (4 miles south), Polegate (14 miles south), South Malling (11 miles south-west) and Heathfield (6 miles south-east).
Around High Hurstwood
The nearest railway station is Buxted station, roughly 1.8 miles south. A little further out are Tickerage Castle (3.3 miles south) and Crowborough War Memorial Hospital (2.7 miles north-east). For a walk, there’s Brickfield Meadow.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.