Hampshire · England
Monxton Sand Mastic
Sand mastic for Monxton, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Silicone on a period window that looks wrong
- Window mastic to renew ahead of painting
- Mastic dropping out of the joint
What sand mastic looks like in Monxton
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.
Rented homes near Andover station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Monxton is about 3 miles west of Andover, in Hampshire. Jobs in Monxton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 683 places across Hampshire. We also work in Southampton, about 21 miles from Monxton.
Work in SP11 is quoted and booked the same way as anywhere else. Whether your property is on High Street, Green Lane and Abbotts Ann Road or a nearby road, we can help. Other places close to Monxton include Amport (1 mile west), Abbotts Ann (1 mile south-east), Fox (1 mile south-west), Little Ann (2 miles south-east) and Anna Valley (2 miles east). Within a short drive, we also cover Winchester (14 miles south-east), Andover (3 miles east), Romsey (14 miles south), Hyde (14 miles south-east), Tidworth (6 miles north-west) and Weeke (13 miles south-east).
Local landmarks in Monxton
We work in homes and buildings around The Black Swan Public House and John Hanson Community School, among other places. Monxton’s nearest station is Andover station, roughly 2.8 miles east of the centre. Other landmarks nearby include Andover Museum (3.4 miles east) and Andover War Memorial Hospital (2.8 miles north-east). For a walk, there’s Anton Lakes and Mill Lake.
About our sand mastic in Monxton
Sand mastic doesn’t last for ever, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. Typical jobs include crumbling sand mastic round a window and silicone on a period window that looks wrong, across tenement windows, period & listed homes and sash and case windows.
Homes in small places like Monxton often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Monxton (SP11)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
How the visit works
The work is kept neat and contained to the area we are working on. The job usually takes a few hours for a single window, longer for several. Somewhere as small as Monxton, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Clear the area around the work
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
Get a quote
For sand mastic in Monxton, call 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Related advice
Quotes for sand mastic in Monxton
The quote reflects the job in front of us. We take into account:
- The product the joint needs
- Mould in or behind the old joints
- The size of the job
- How many rooms, windows or areas are involved
Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
Asking for a quote
When you contact us, it’s useful to know:
- Photos by email, if that is easy
- The address or postcode of the job
- How many joints, rooms or windows are involved
- The type of property
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Your questions about sand mastic in Monxton
Can you help a landlord with a rental near Andover station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Will you come out to Monxton?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What do you need from me for a quote?
A short description and the location, plus pictures if you have them. We will ask anything else we need to know.
Are you insured?
Yes. We’re fully insured.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
How long does the job take?
A typical job takes anything from a few hours to a full day, depending on how many windows. Your quote will say how long we expect yours to take.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Will the old sealant be removed?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Also near Monxton
Also in Monxton
Common problems we fix in Monxton
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
The problems people normally mention when they call include:
- Cracked mastic round a front door frame
- Modern sealant on a period surround
- Window mastic to renew ahead of painting
- Open joints round the window box
Schools such as Amport Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Who does the work, and how experienced they are
- How the colour is chosen
- Is the old sealant removed completely?
- What preparation is included
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Where a wall is exposed, as many are in small places like Monxton, 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 normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why us?
- We are fully insured
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- 4.9 on Google from 180+ five-star reviews
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Check the mastic when you check the paintwork
- Make sure water runs off the sill
- Ask the planning authority about consent for listed or conservation-area homes
- Take care around the mastic when scraping paint
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.