West Sussex · England
Sand Mastic in Maplehurst
Our applicators work in Maplehurst on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Mastic dropping out of the joint
- Patchy fillers round a sash window
- Modern sealant on a period surround
Landlords, agents and businesses in Maplehurst
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Maplehurst, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
About our sand mastic in Maplehurst
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you’re dealing with mastic worn away on windows facing the weather and old sand mastic that has cracked, crumbled or fallen out, we can put it right, whatever the surface.
Homes in small places like Maplehurst often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
All our work comes with our 12-month guarantee, wherever you are in West Sussex.

- Where
- Maplehurst (RH13)
- Region
- West Sussex
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Maplehurst
Do you cover smaller places like Maplehurst?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Maplehurst in your area for sand mastic?
Yes. We work across London and the South East, and Maplehurst is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we will advise.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
How long will you be here?
Typically it takes anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer, and we will say how long yours will take.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Sand mastic in Maplehurst: local notes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as St Andrew's CofE Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Christs Hospital station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Maplehurst is about 4 miles south of Horsham, in West Sussex. For sand mastic in and around Maplehurst, please ring 0345 464 0079 or send us an email for a quick quote. We cover West Sussex from our Crawley base, Maplehurst included. Across West Sussex, we cover 371 places, Maplehurst among them. You can also see our page for Crawley, about 9 miles away.
We cover every part of RH13 for sand mastic. If you need sand mastic at a property on Nuthurst Road, Park Lane and Copsale Road or a nearby road, our applicators can take on the job. Other places close to Maplehurst include Nuthurst (1 mile north), Southwater (2 miles north-west), Tower Hill (4 miles north-west), Brooks Green (4 miles west) and Horsham (4 miles north). Further out, we also cover Crawley (9 miles north-east), Worthing (13 miles south), Haywards Heath (9 miles east), Burgess Hill (9 miles south-east), East Grinstead (15 miles north-east) and Shoreham-by-Sea (12 miles south).
Around Maplehurst
The nearest railway station is Christs Hospital station, about 3.8 miles north-west of the centre. Other landmarks nearby include Horsham Hospital (4.3 miles north) and Christs Hospital School Museum (3.5 miles north-west). Green spaces nearby include Knepp Wildland.
Surface by surface
Stone surrounds
The stone is treated with care while raking out the old mastic.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Maplehurst, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
- Let us know about earlier repairs to the joints
Getting a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Advice
Quotes for sand mastic in Maplehurst
Call for a quick quote. The main things that affect it are:
- The old material and how stubborn it is
- Whether there’s mould to deal with
- How many areas need sealing
- The type of sealant required
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
To help us quote quickly, please include:
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- Where the property is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or email us.
Leave it or put it right?
Filling over old, loose mastic does not last. We remove the loose material first so the new mastic stays put. In a small place like Maplehurst, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Why choose Mr Mastic in Maplehurst
- 20+ years of sealant experience
- One-year guarantee on every job
- Experience in homes, commercial sites and hotels
- Full insurance on every job
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Places near Maplehurst
What else we do in Maplehurst
What we’re called out for in Maplehurst
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint and we normally remove them.
Most people get in touch when they notice something like this:
- Mastic that needs renewing before redecorating
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
- Old sand mastic that has cracked, crumbled or fallen out
Homes close to The Parish Church of St Andrew include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
What your quote should include
- How the colour is chosen
- The length of the guarantee
- Who does the work, and how experienced they are
- Whether the sealant suits the joint
