Hampshire · England
Neatham Sand Mastic
Sand mastic across Neatham and nearby, with old sealant always removed completely and a one-year guarantee.
- Crumbling sand mastic round a window
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
Looking after it afterwards
Aftercare is simple:
- Keep sills and gutters clear so water drains away
- Avoid patching sand mastic with silicone
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Sand mastic for homes and businesses in Neatham
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. We work on period & listed homes, tenement windows and stone surrounds, and common reasons people get in touch are cracked mastic round a front door frame and window mastic to renew ahead of painting.
Mastic can only go onto a dry, clean joint, so window work in Neatham is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- Neatham (GU34)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Frames and glazing around Neatham
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Bentworth Hall (about 4.8 miles west) are a reminder that the area around Neatham has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Andrews' Endowed Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Alton station, any sash windows need sound mastic to keep draughts and rain out.
Neatham is about 2 miles north-east of Alton, in Hampshire. Neatham gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Neatham is one of 683 places in Hampshire where we work. Reading is on our list too, about 20 miles from Neatham.
Work in GU34 is quoted and booked the same way as anywhere else. If you’re just outside Neatham, we cover Holybourne (1 mile north-west), Wyck (1 mile south-east), Upper Froyle (1 mile north-east), Alton (2 miles south-west) and East Worldham (2 miles south). We also work in nearby towns such as Basingstoke (10 miles north-west), Farnborough (12 miles north-east), Fleet (9 miles north-east), Aldershot (10 miles north-east), Petersfield (11 miles south) and Yateley (13 miles north).
Local landmarks in Neatham
In Neatham, that means homes and buildings near Treloar School, White Hart pub and Eggar's School. Neatham’s nearest station is Alton station, roughly 1.3 miles south-west. Nearby you’ll also find Allen Gallery (1.6 miles south-west) and Alton Community Hospital (2.6 miles south-west). Open spaces near Neatham include Holybourne Hill.
Surface by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Work for landlords, hotels and businesses
For anyone letting property in or around Neatham, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Why act early in Neatham
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. Around Neatham, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Tidy, careful work
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
- Old sealant always removed completely
See what affects the cost or our reviews.
Common questions in Neatham
Can you do sand mastic in Neatham?
Yes, Neatham is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Neatham?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you fully insured?
Yes. We’re fully insured.
Do you work for landlords and businesses?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
What guarantee comes with the work?
All our work has a 12-month guarantee, and we’re fully insured.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
What we’re called out for in Neatham
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
These are the problems we’re asked about most:
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
- Gaps round a timber door in stone or brick
- A silicone bead on a sash window that spoils the look
For an older house near a landmark such as Holy Rood Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- Whether all the old sealant comes out first
- How long the guarantee is
- What product goes in the joint
- How hidden problems are handled
Places near Neatham
Other services in Neatham
The process
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours per window, depending on the condition of the joints, and the area is left clean. Somewhere like Neatham 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.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
How to get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Related advice
What we cannot put right
Before booking, it’s worth knowing the limits:
- Broken panes
- Sashes that need overhauling
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Neatham
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
- Timber door frames
- Period & listed homes