East Sussex · England
Sand Mastic in Five Ash Down
Sand mastic in Five Ash Down from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Gaps round a timber door in stone or brick
Frames and glazing around Five Ash Down
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Buxted CofE Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Five Ash Down Independent Chapel, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Five Ash Down is about 2 miles north of Uckfield, in East Sussex. For sand mastic in and around Five Ash Down, please call 0345 464 0079 or send us an email for a quick quote. We cover East Sussex from our Crawley base, Five Ash Down included. Five Ash Down is one of 289 places in East Sussex where we work for sand mastic. Crawley is on our list too, about 15 miles from Five Ash Down.
We work across the TN22 postcode area for sand mastic and the streets around it. Local streets include Ashengate Way, Flaxen Fields and Olives Pit Lane, all of which we cover. Nearby, we also carry out sand mastic in High Hurstwood (1 mile north-east), Fairwarp (1 mile north), Sweethaws (3 miles north-east), Crowborough (4 miles north-east) and Jarvis Brook (5 miles north-east). Further out, we also cover Seaford (15 miles south), Lewes (10 miles south-west), Hailsham (11 miles south-east), Newhaven (14 miles south), Peacehaven (15 miles south) and Telscombe (15 miles south).
Landmarks near Five Ash Down
We work in homes and buildings around Uckfield College and the streets around them. The nearest railway station is Buxted station, about 1.2 miles south-east. Other landmarks nearby include Tickerage Castle (2.8 miles south-east) and Uckfield Community Hospital (2.4 miles south). For a walk, there’s Brickfield Meadow.
Sand mastic in Five Ash Down
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you are dealing with draughts and rain around sash boxes and mastic that needs renewing before redecorating, we can help, whatever the surface.
Around Five Ash Down, 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.
Big or small, you get the same one-year guarantee in Five Ash Down and across East Sussex.
- Where
- Five Ash Down (TN22)
- Region
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Five Ash Down: your questions answered
Do you work for landlords with property near Buxted station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Do you cover Five Ash Down for sand mastic?
Yes. Our work covers London and the South East, and Five Ash Down is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. Timing depends on the weather and the joint.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Where are you based?
We work from Crawley. We cover Five Ash Down and the rest of East Sussex, along with the rest of our area.
Quotes for sand mastic in Five Ash Down
Call for a quick quote. What matters most is:
- Which sealant suits the joint
- The number and length of the joints
- How many areas need sealing
- Mould in or behind the old joints
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Helping us quote
To make quoting easier, please include:
- Where the job is, and your postcode
- Whether it’s a home or a business
- Whether it has been sealed before
- Any access issues, like height or stairs
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Surface by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Timber door frames
Round a period front door, sand mastic gives the right look.
Towns and villages near Five Ash Down
Also in Five Ash Down
Should I try it myself first?
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.
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.
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself usually takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Five Ash Down, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or send us an email.
Related advice
What we are called out for in Five Ash Down
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
Common reasons people contact us include:
- Open joints round the window box
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
- Crumbling sand mastic round a window
If you let a flat or house near Buxted station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- Whether all the old sealant comes out first
- What product goes in the joint
- How much experience the applicator has
When it isn’t the sealant
Sealant is not the answer to every problem, and we’ll tell you before we start. It won’t solve:
- Cracked or broken glass
- Whether work needs listed building consent
- Crumbling stone or brickwork round the window
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Timber door frames
- Brick reveals
- Tenement windows
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Ask us before painting near the mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Clear gutters so water does not pour onto the windows
- Inspect the joints round the windows every year or so
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
