East Sussex · England
Window Mastic in High Hurstwood
Window mastic for High Hurstwood, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Cracked or shrunken mastic around the frame
FAQs for High Hurstwood
Do you cover High Hurstwood for window mastic?
Yes. Our work covers London and the South East, and High Hurstwood is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Is High Hurstwood within the area you cover?
Yes, High Hurstwood is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Do you have sealant for grey or black windows?
Generally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
Are you fully insured?
Yes, we’re fully insured.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What does window mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.
About our window mastic in High Hurstwood
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you are dealing with sealant in the wrong colour for the frame and mastic that has split away from the wall, we can put it right, whatever the surface.
Homes in small places like High Hurstwood often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Each job carries a 12-month guarantee.
- Place
- High Hurstwood (TN22)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Nearby places to High Hurstwood
What else we do in High Hurstwood
Keeping the joints in good condition
Aftercare is simple:
- Look round the frames every year or so
- Use gentle cleaners on frames and sealant
- Avoid blasting the frames with a pressure washer
- Paint up to the joint, not over it
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Do you need window mastic in High Hurstwood?
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
The most common problems we see are:
- Old mastic that has gone black or come away
- Rain getting in at the frame or under the sill
- Cracked sealant at the sill ends
- Draughts coming in around windows and doors
If you live in an older home near Holy Trinity Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before you book
- Whether they seal over old material or remove it
- When the joint can take water or movement
- Who turns up on the day
- Are they insured?
Why it’s worth doing now in High Hurstwood
Resealing frames is a short job: it takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. In a small place like High Hurstwood, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Why us?
- Colour agreed with you before work begins
- Anti-fungal silicone where joints get wet
- Over 20 years’ experience
- A 12-month guarantee on all work
Read our cost guide or customer reviews.
What affects the cost of window mastic
For a quick quote, just ask. The main things that affect it are:
- Which sealant suits the joint
- The amount of work
- How many areas need sealing
- Whether old sealant or filler has to be cut out
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What to tell us for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- A few pictures by email, if you can
- Whether it has been sealed before
- The problem you’ve noticed
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
DIY versus a professional finish
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
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.
Frames and glazing around High Hurstwood
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Buxted station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like High Hurstwood Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
High Hurstwood is about 3 miles south-west of Crowborough, in East Sussex. Whether you’re in the middle of High Hurstwood or further out, window mastic is available for homes and businesses alike. High Hurstwood is one of 289 places in East Sussex where we work for window mastic. We also work in Crawley, about 15 miles from High Hurstwood.
Every address in TN22 is covered for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Burnt Oak Road, Chillies Lane and Perrymans Lane and the roads around them. If you are just outside High Hurstwood, we cover 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). We also work in nearby towns such as 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).
What’s near High Hurstwood
The nearest railway station is Buxted station, roughly 1.8 miles south of the centre. Well-known places in the area include Tickerage Castle (3.3 miles south) and Crowborough War Memorial Hospital (2.7 miles north-east). Open spaces near High Hurstwood include Brickfield Meadow.
Different surfaces, different methods
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
Composite doors
A composite door normally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
How the visit works
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of frames, longer for a whole house. In a small place like High Hurstwood, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any parking rules near the property
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
