West Sussex · England
Sand Mastic in Mid Lavant
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Mid Lavant, backed by a 12-month guarantee. Call for a quick quote.
- Gaps where the frame meets the masonry
- Mastic that needs renewing before redecorating
- Cement or filler used on old window joints that has cracked
Mid Lavant questions
I let a flat near Fishbourne station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Is Mid Lavant within the area you cover?
Yes. Mid Lavant 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.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or send us an email with a short description of the job.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
Do you guarantee sand mastic work?
Our 12-month guarantee covers every job, sand mastic included.
Do you have insurance?
Yes. Full insurance covers our work.
Sand mastic in Mid Lavant, done properly
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. Common call-outs are for silicone on a period window that looks wrong and tired mastic found when preparing windows for paint, on sash and case windows, period & listed homes and tenement windows.
Homes in small places like Mid Lavant often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Location
- Mid Lavant (PO18)
- Region
- West Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Have rotten timber repaired before new mastic goes in
- Keep sills and gutters clear so water drains away
- Inspect the joints round the windows every year or so
- Ask the planning authority about consent for listed or conservation-area homes
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Nearby places to Mid Lavant
More services for Mid Lavant
Leave it or put it right?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Where a wall is exposed, as many are in small places like Mid Lavant, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
Why choose Mr Mastic in Mid Lavant
- 20+ years of sealant experience
- Every job guaranteed for a year
- Full insurance on every job
- Arbo and Everbuild products
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
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.
How the visit works
The work is kept neat and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a single window, longer for several. In a small place like Mid Lavant, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- Old, loose 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 finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Mention any tricky access
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Ask for a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
What we’re called out for in Mid Lavant
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
Keep an eye out for any of the following:
- Mastic worn away on windows facing the weather
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- A silicone bead on a sash window that spoils the look
Schools such as Lavant CofE Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- Which sealant they’ll use, and why
- Who does the work, and how experienced they are
- What happens if the job turns out different
- Is the old sealant removed completely?
Mid Lavant homes and the weather
Historic houses like Goodwood House (about 1.9 miles east) are a reminder that the area around Mid Lavant 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. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Fishbourne station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to Church of St Nicholas include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Mid Lavant is about 2 miles north of Chichester, in West Sussex. Whether you’re in the middle of Mid Lavant or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 371 towns and villages across West Sussex, from the larger towns to small villages. We also work in Portsmouth, around 14 miles away.
Jobs for sand mastic in PO18 is quoted and booked the same way as anywhere else. We cover properties on St Nicholas Road, Churchmead Close and Springfield Close and the roads around them. We also cover the places around Mid Lavant: East Lavant (1 mile south-east), Westerton (2 miles south-east), Westhampnett (2 miles south-east), Chichester (2 miles south) and Waterbeach (2 miles east). Further out, we also cover Bognor Regis (7 miles south-east), Selsey (10 miles south), Littlehampton (12 miles east), Emsworth (7 miles west), Rustington (13 miles east) and Storrington (15 miles east).
Landmarks near Mid Lavant
In Mid Lavant, that means homes and buildings near The Earl Of March Public House and Bishop Luffa School, among other places. The closest station to Mid Lavant is Fishbourne station, about 2.7 miles south-west. Other landmarks nearby include Chichester Castle (2.3 miles south) and Museum of Gardening (2.4 miles north). Open spaces near Mid Lavant include Kingley Vale National Nature Reserve and Stoke Down.
What affects the quote in Mid Lavant
Every job gets its own quote. These are the things that affect it:
- Whether old sealant or filler has to be cut out
- The type of sealant required
- Whether the work is at height
- How many areas need sealing
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
To make quoting easier, let us know:
- The address or postcode of the job
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or email us.
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
