West Sussex · England
Sand mastic for sash & case windows in West Ashling, West Sussex
Window and door surrounds in West Ashling need attention? We cut out the old, prepare the joints and apply the right sealant.
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
- Modern sealant on a period surround
Sand mastic in West Ashling
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 period homes, it looks right where silicone wouldn’t. Common call-outs are for tired mastic found when preparing windows for paint and silicone on a period window that looks wrong, across period & listed homes, tenement windows and sash and case windows.
Around West Ashling, 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.
There’s a 12-month guarantee on every job, large or small.
- Place
- West Ashling (PO18)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in West Ashling
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Quotes for sand mastic in West Ashling
For a quick quote, just ask. What matters most is:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- The number of rooms or windows
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Helping us quote
When you call or email, these details help:
- Where the job is, and your postcode
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.
Sand mastic in West Ashling: local notes
Historic houses like West Dean House (about 4.6 miles north-east) are a reminder that the area around West Ashling has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Bosham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Funtington Primary School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as The Parish Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in.
West Ashling is about 3 miles north-west of Chichester, in West Sussex. Wherever you are in the PO18 postcode area, we can carry out sand mastic at your property. West Ashling is one of 371 places in West Sussex where we work. Portsmouth is on our list too, around 11 miles away.
Jobs for sand mastic in PO18 works the same way as everywhere else we cover. Sand mastic is available to properties on Heather Close, Ashling Close and Portal Close and the roads around them. Nearby, we also carry out sand mastic in East Ashling (1 mile east), Funtington (1 mile north-west), Broadbridge (1 mile south), Hambrook (1 mile west) and West Stoke (1 mile north-east). Within a short drive, we also cover Bognor Regis (9 miles south-east), Chichester (3 miles south-east), Selsey (9 miles south), Littlehampton (14 miles east), Emsworth (4 miles west) and Rustington (15 miles east).
Local landmarks in West Ashling
Typical jobs here are in homes near The Horse And Groom Public House. For rail, the closest station is Bosham station, roughly 1.2 miles south. Well-known places in the area include Chichester Centre (3.6 miles east) and Chichester Castle (3.5 miles south-east). Green spaces nearby include Kingley Vale National Nature Reserve and Stoke Down.
West Ashling: your questions answered
Do you cover West Ashling for sand mastic?
Yes, West Ashling is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
I let a flat near Bosham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Are you insured?
Yes. Mr Mastic is fully insured.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
What information do you need?
A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we’ll agree it with you first.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Honest limits
We won’t take on work that will not last, so these are the limits:
- Decisions on consent for listed homes
- Broken panes
- Decayed frames that need repair
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
What we seal
- Stone surrounds
- Sash and case windows
- Timber door frames
- Tenement windows
- Period & listed homes
- Brick reveals
What we do, step by step
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to a full day, depending on how many windows. Somewhere like West Ashling needs a little journey planning: 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 look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
How to get a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Advice
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Why deal with it now?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around West Ashling can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why us?
- 20+ years of sealant experience
- Experience in homes, commercial sites and hotels
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
Take a look at how sealant jobs are priced and our reviews.
Towns and villages near West Ashling
More services for West Ashling
What the job involves on each surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.