West Sussex · England
Sand Mastic in Slaugham
Sand mastic for Slaugham, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
- Tired mastic found when preparing windows for paint
How we handle sand mastic in Slaugham
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you’re dealing with a silicone bead on a sash window that spoils the look and window mastic to renew ahead of painting, we can help, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Slaugham is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Every job comes with a one-year guarantee, wherever you are in West Sussex.
- Place
- Slaugham (RH17)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Slaugham
With historic houses such as Tyes Place (about 1.8 miles east) nearby, there’s older building stock in the area around Slaugham as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Balcombe station, any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near St Mary's Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Slaugham is about 5 miles south of Crawley, in West Sussex. If you need sand mastic in Slaugham, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover West Sussex from our Crawley base, Slaugham included. Across West Sussex, we cover 371 places, Slaugham among them.
Every address in RH17 is within our area for sand mastic. Other places close to Slaugham include Handcross (1 mile north), Plummers Plain (1 mile west), Lower Beeding (2 miles west), Colwood (3 miles south) and Crabtree (3 miles south-west). Within a short drive, we also cover Crawley (5 miles north), Horsham (5 miles west), Haywards Heath (6 miles south-east), Burgess Hill (7 miles south-east), East Grinstead (10 miles north-east) and Shoreham-by-Sea (14 miles south).
What’s near Slaugham
Around Slaugham, our work takes us to homes and buildings near Carpenter's Arms and the streets around them. For rail, the closest station is Balcombe station, roughly 3.3 miles east of the centre. Well-known places in the area include Cuckfield Museum (3.6 miles south-east) and Crawley Hospital (5.4 miles north). Not far away are Blunts Wood and Paiges Meadow and Tilgate Lake.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- How many areas need sealing
- The size of the job
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details, and pictures are welcome.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Avoid patching sand mastic with silicone
- Ask a joiner to look at soft timber first
- Renew mastic before redecorating the windows
- Ask the planning authority about consent for listed or conservation-area homes
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
Surface by surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Slaugham questions
Will you come out to Slaugham?
Yes. Slaugham is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do sand mastic in Slaugham?
Yes, Slaugham is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Are you insured?
Yes, we’re fully insured.
What should I tell you?
A short description and the location, with pictures by email if possible. We will ask anything else we need to know.
Honest limits
A few problems are outside what sealant work can do:
- Putty and glazing repairs
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to a full day, depending on how many windows. In a small place like Slaugham, access is usually the main thing to plan. 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.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
- Tell us if parking is tricky
Get a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We will send you a clear quote before any work starts.
Related advice
Signs you need sand mastic in Slaugham
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
People generally contact us after spotting something like this:
- Old cement repairs round a window that have failed
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Crumbling sand mastic round a window
If you look after a building such as Warninglid Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- What insurance they hold
- How hidden problems are handled
- Whether all the old sealant comes out first
- Which sealant they’ll use, and why