West Berkshire · England
Kintbury Sand Mastic
Sand mastic across Kintbury and nearby, with old sealant always removed completely and a 12-month guarantee.
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
- Tired mastic found when preparing windows for paint
Kintbury homes and the weather
Historic houses like Benham Park (about 3.4 miles east) are a reminder that the area around Kintbury 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Kintbury station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Kintbury is about 5 miles west of Newbury, in West Berkshire. Across the RG17 area, we cover sand mastic for homes and businesses. Kintbury is one of 155 towns and villages in West Berkshire where we work for sand mastic. Reading is on our list too, around 21 miles away.
Every address in RG17 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Station Road, High Street and Morrish Grove. If you’re just outside Kintbury, we cover Hell Corner (2 miles south), Inkpen (2 miles south-west), Inkpen Common (2 miles south), Lower Green (2 miles south-west) and Upper Green (2 miles south-west). We also work in nearby towns such as Newbury (5 miles east), Thatcham (8 miles east), Speenhamland (5 miles east), Hungerford (3 miles west), Lambourn (8 miles north-west) and Shaw (6 miles east).
Near you in Kintbury
In Kintbury, that means homes and buildings near Prince of Wales pub, among other places. There’s a railway station in Kintbury itself: Kintbury station. Nearby you will also find Hamstead Marshall 3 (2.2 miles east). For a walk, there’s Inkpen Hill and Kintbury Newt Ponds.
How we handle sand mastic in Kintbury
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on tenement windows, sash and case windows and period & listed homes, and people most often call us about failed mastic on an exposed elevation and old cement repairs round a window that have failed.
Homes in small places like Kintbury 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.
- Place
- Kintbury (RG17)
- Wider area
- West Berkshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Kintbury
Other services in Kintbury
What we are called out for in Kintbury
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
Keep an eye out for these signs:
- Gaps round a timber door in stone or brick
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Tired mastic found when preparing windows for paint
Managing a site like Kintbury St Mary's C.E. Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- How hidden problems are handled
- How long to leave it before use
- Whether you can choose the colour
- Whether all the old sealant comes out first
What affects the cost of sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- The number of rooms or windows
- The number and length of the joints
- Whether there’s mould to deal with
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- The type of property
- If someone has resealed it before
- Access, such as stairs, a lift or height
- Where the property is
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details.
Why act early in Kintbury
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Kintbury can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why us?
- An ARBOMaster approved applicator
- Fully insured
- Every job guaranteed for a year
- We never seal over old sealant
See what affects the cost and our reviews.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
- Ask a joiner to look at soft timber first
- Clear gutters so water doesn’t pour onto the windows
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
How it works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before work begins. Most jobs take a few hours for a single window, longer for several. Somewhere like Kintbury 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.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Mention if the joints have been sealed before
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Read more
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Different surfaces, different methods
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
FAQs for Kintbury
Can you do sand mastic in Kintbury?
Yes, Kintbury 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 will give you a clear price.
Will you come out to Kintbury?
Yes, Kintbury is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels.