West Sussex · England
Sand mastic for sash & case windows in Houghton, West Sussex
Our applicators work in Houghton on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Open joints round the window box
- Crumbling sand mastic round a window
- Mastic that needs renewing before redecorating
Sand mastic in Houghton: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Bignor Roman Villa (about 2.8 miles north-west) nearby, there’s older building stock in the area around Houghton as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Dorset House School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Amberley station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near The Parish Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Houghton is about 6 miles north of Littlehampton, in West Sussex. Homes, rented property, offices and hotels in Houghton can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Houghton is one of 371 towns and villages in West Sussex we cover for sand mastic. Our Brighton page covers work nearby (19 miles or so).
Postcode districts we cover here for sand mastic: BN18. Close by, we work in Arundel (3 miles south), Warningcamp (3 miles south-east), Crossbush (3 miles south), Tortington (4 miles south) and Poling (4 miles south-east). Further out, we also cover Worthing (8 miles south-east), Bognor Regis (9 miles south-west), Chichester (11 miles west), Selsey (15 miles south-west), Littlehampton (6 miles south) and Shoreham-by-Sea (13 miles east).
Local landmarks in Houghton
Around Houghton, our work takes us to homes and buildings near Arundel Park and the streets around them. The closest station to Houghton is Amberley station, about 0.5 miles north-east. Well-known places in the area include Arundel and District Hospital (2.7 miles south) and Amberley Castle (1.2 miles north-east). Open spaces near Houghton include Amberley Wild Brooks and Bignor Hill.
Sand mastic for homes and businesses in Houghton
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We are often asked to deal with silicone on a period window that looks wrong and failed mastic on an exposed elevation, on stone surrounds, timber door frames and tenement windows.
Around Houghton, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job comes with a 12-month guarantee.
- Where
- Houghton (BN18)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. In a small place like Houghton, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- Rated 4.9 stars on Google
- ARBOMaster approved applicator
- Neat joints and a tidy finish
- Homes, businesses and hotels
See our cost guide and our reviews.
Quotes for sand mastic in Houghton
We don’t publish a price list. What we look at:
- When we can work, for business premises
- Access and height
- Mould in or behind the old joints
- The old material and how stubborn it is
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
- How many joints, rooms or windows are involved
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or send us an email and describe the job.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. For a village or hamlet like Houghton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Let us know about parking restrictions
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Common questions in Houghton
Is Houghton in your area for sand mastic?
Yes, Houghton is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll send you a clear quote.
Will you come out to Houghton?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How long does sand mastic take?
That depends on the amount of work, but as a guide it takes a few hours for a single window, longer for several. We’ll give you a better idea when we quote.
Can I choose the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Can you replace silicone on a period window with sand mastic?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Landlord and commercial work in Houghton
We work for landlords and agents as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Also near Houghton
Other services in Houghton
Aftercare tips
A little care helps the new joints last. Our advice:
- Do not run silicone over sand mastic
- Leave the new mastic unpainted
- Ask the planning authority about consent for listed or conservation-area homes
- Ask a joiner to look at soft timber first
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Cracked or broken glass
- Whether work needs listed building consent
- Damaged stone surrounds
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Timber door frames
- Sash and case windows
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows