Hampshire · England
Sand mastic for sash & case windows in Wildmoor, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Wildmoor, backed by a 12-month guarantee. Call for a quick quote.
- Modern sealant on a period surround
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a single window, longer for several. Somewhere like Wildmoor needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Advice
How we handle sand mastic in Wildmoor
Sand mastic has long been used to fill the joint between timber frames and masonry. 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. If you are dealing with tired mastic found when preparing windows for paint and gaps round a timber door in stone or brick, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Wildmoor is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a one-year guarantee.
- Place
- Wildmoor (RG27)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Wildmoor
Is Wildmoor in your area for sand mastic?
Yes, Wildmoor is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Can you help a landlord with a rental near Bramley (Hants) station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will advise.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and shaped to suit the surround.
Can old silicone round a sash window be swapped for sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Is the work guaranteed?
There’s a 12-month guarantee on every job, sand mastic included.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours per window, depending on the condition of the joints. We’ll give you a better idea when we quote.
Leave it or put it right?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Wildmoor, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.
Why Wildmoor customers choose us
- Old sealant always removed completely
- We leave the area clean and tidy
- 20+ years of sealant experience
- Fully insured
Also near Wildmoor
Other services in Wildmoor
Looking after it afterwards
So the new joints stay in good condition:
- Ask the planning authority about consent for listed or conservation-area homes
- Keep modern sealant off the mastic
- Leave the new mastic unpainted
- Make sure water runs off the sill
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- Broken panes
- Masonry that needs repairing
- Sashes that rattle, stick or will not open
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Surfaces we seal
- Timber door frames
- Tenement windows
- Sash and case windows
- Period & listed homes
- Brick reveals
- Stone surrounds
Quotes for sand mastic in Wildmoor
Every job gets its own quote. This is what makes a difference:
- The number of rooms or windows
- The amount of work
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
Before you ask for a quote, have a think about:
- How we’d reach the joints
- Where the job is, and your postcode
- If someone has resealed it before
- Roughly how big the job is
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Work for landlords, hotels and businesses
Landlords and letting agents in Wildmoor can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Windows and doors in Wildmoor
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as The Vyne (about 3 miles west) nearby, there’s older building stock in the area around Wildmoor as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as The Loddon School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Bramley (Hants) station, any sash windows need sound mastic to keep draughts and rain out.
Wildmoor is about 4 miles north-east of Basingstoke, in Hampshire. Our applicators cover sand mastic for homes and businesses in Wildmoor and the surrounding area. Wildmoor is one of 683 towns and villages in Hampshire we cover for sand mastic. There’s also a page for Reading, about 10 miles away.
We cover every part of the RG27 postcode area for sand mastic. We also cover the places around Wildmoor: Chineham (1 mile west), Water End (2 miles south), Andwell (2 miles south), Old Basing (2 miles south-west) and Lychpit (2 miles south-west). Within a short drive, we also cover Basingstoke (4 miles south-west), Farnborough (11 miles east), Fleet (8 miles east), Aldershot (12 miles east), Alton (10 miles south) and Yateley (9 miles east).
What’s near Wildmoor
The closest station to Wildmoor is Bramley (Hants) station, about 2.8 miles north-west. Other landmarks nearby include Festival Place (3.7 miles south-west) and Basing House (2.5 miles south-west). Not far away are The Mill Field.
When to call us in Wildmoor
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
If you can see any of these, it’s time to have the joints looked at:
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
- Open joints round the window box
- Mastic round period door frames that has failed
Homes close to Church of St. Leonard include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- What the cure time is
- What product goes in the joint
- Whether they’re fully insured
- What preparation is included