West Sussex · England
Sand Mastic in Tangmere
Sand mastic across Tangmere and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Crumbling sand mastic round a window
- Mastic that needs renewing before redecorating
- Gaps round a timber door in stone or brick
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Sand mastic in Tangmere
We work across Tangmere renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand for a neat, traditional finish. We’re often asked to deal with mastic that needs renewing before redecorating and draughty sash windows at the surround, across period & listed homes, timber door frames and brick reveals.
Around Tangmere, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
You get a 12-month guarantee, the same in Tangmere as everywhere else we work.
- Location
- Tangmere (PO20, PO18)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Look over the window mastic once a year
- Do not paint over the new mastic
- Make sure water runs off the sill
- Take care around the mastic when scraping paint
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Landlord and commercial work in Tangmere
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What happens on the day
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for a single window, longer for several. A visit to Tangmere is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- The surface is finished to suit the stone or brick.
How to prepare
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
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Frames and glazing around Tangmere
Historic houses like Goodwood House (about 1.8 miles north-west) are a reminder that the area around Tangmere 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 Chichester 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 Tangmere Primary Academy, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near St Andrew's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Tangmere is about 3 miles east of Chichester, in West Sussex. For sand mastic in and around Tangmere, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover West Sussex, Tangmere included. Tangmere is one of 371 towns and villages in West Sussex where we work for sand mastic. For nearby work, see our Portsmouth page.
Our applicators cover all of PO20 and PO18 for sand mastic and the streets around it. That includes homes and businesses on Garland Square, Derwent Close and Jerrard Road. We also cover Boxgrove (1 mile north), Strettington (1 mile north-west), Oving (1 mile south), Halnaker (1 mile north) and Maudlin (1 mile west). We also work in nearby towns such as Worthing (14 miles east), Bognor Regis (4 miles south), Chichester (3 miles west), Selsey (9 miles south), Littlehampton (8 miles east) and Emsworth (10 miles west).
Near you in Tangmere
In Tangmere, that means homes and buildings near Ormiston Six Villages Academy and Westbourne House School. The closest station to Tangmere is Chichester station, roughly 3.2 miles south-west. A little further out are The Chichester City Museum (2.8 miles west) and Chichester Centre (2.5 miles west). Open spaces near Tangmere include Levin Down.
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- The number and length of the joints
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
What to tell us for a quote
When you contact us, it’s useful to know:
- The problem you’ve noticed
- A few photos by email, if you can
- The rough size of the job
- If it’s domestic, commercial or a hotel
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
What we cannot put right
We’ll always be straight with you, so here’s what sealant cannot fix:
- Timber that has rotted
- Whether work needs listed building consent
- Crumbling stone or brickwork round the window
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Tenement windows
- Stone surrounds
- Timber door frames
- Brick reveals
- Period & listed homes
- Sash and case windows
Your questions about sand mastic in Tangmere
Do you cover smaller places like Tangmere?
Yes, Tangmere is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Tangmere in your area for sand mastic?
Yes, Tangmere is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Do you have insurance?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
What do you need from me for a quote?
A short description and the location, with photos by email if possible. We’ll ask anything else we need to know.