Hampshire · England
Sand mastic for sash & case windows in Bighton, Hampshire
Problem with your window and door surrounds in Bighton? We remove the old material, prepare the joints and seal them properly.
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
Landlord and commercial work in Bighton
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we’re fully insured for the work.
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.
Sand mastic in Bighton, done properly
Sand mastic doesn’t last for ever and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. We work on brick reveals, timber door frames and stone surrounds, and the jobs we see most are old cement repairs round a window that have failed and draughty sash windows at the surround.
Homes in small places like Bighton 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.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Place
- Bighton (SO24)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
Timber door frames
Round a period front door, sand mastic gives the right look.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Why deal with it now?
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Where a wall is exposed, as many are in small places like Bighton, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Bighton
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
- One-year guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
Read our cost guide and our reviews.
Also in Bighton
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Clear gutters so water doesn’t pour onto the windows
- Avoid heavy scraping on the mastic joint
- Avoid patching sand mastic with silicone
- Check the mastic when you check the paintwork
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Sashes that need overhauling
- Timber that has rotted
- Crumbling stone or brickwork round the window
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Where we work in Bighton
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a single window, longer for several. Somewhere like Bighton 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.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Tell us if parking is tricky
- Clear items away from the joints we are working on
- On commercial sites, let us know about site rules
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Common questions in Bighton
Do you cover Bighton for sand mastic?
Yes. Our work covers London and the South East, and Bighton is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Is Bighton within the area you cover?
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 it possible to take out silicone and use sand mastic instead?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
What guarantee comes with the work?
You get our 12-month guarantee on every job.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We’ll explain what to expect before we leave.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Sand mastic in Bighton: 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. Historic houses like Hinton Ampner House (about 4.3 miles south) are a reminder that the area around Bighton has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you look after a building such as Perins School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Bighton is about 7 miles south-west of Alton, in Hampshire. If you need sand mastic in Bighton, please ring 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Hampshire, Bighton included. Bighton is one of 683 towns and villages in Hampshire we cover. Southampton is on our list too, about 17 miles from Bighton.
Postcode districts we cover here for sand mastic: SO24. We also cover the places around Bighton: Old Alresford (1 mile west), Upper Wield (3 miles north-east), Northington (3 miles north-west), Totford (3 miles north-west) and Brown Candover (4 miles north-west). Further out, we also cover Basingstoke (11 miles north), Winchester (9 miles west), Eastleigh (13 miles south-west), Horndean (15 miles south), Chandler's Ford (14 miles south-west) and Alton (7 miles north-east).
Around Bighton
In Bighton, that means homes and buildings near Three Horseshoes Public House, among other places. A little further out are Barton Castle (2.4 miles north). Open spaces near Bighton include Red Hill.