Wokingham · England
Sindlesham Sand Mastic
We cover Sindlesham for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Crumbling sand mastic round a window
- Failed mastic on an exposed elevation
- Tired mastic found when preparing windows for paint
Sand mastic in Sindlesham, done properly
Sand mastic suits most period window surrounds. Newer frames generally get a flexible sealant instead, and we’ll talk through which suits your home. Common call-outs are for draughts and rain around sash boxes and open joints round the window box, across stone surrounds, tenement windows and brick reveals.
In a village or hamlet like Sindlesham, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months.
- Where
- Sindlesham (RG41)
- Region
- Wokingham
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
What happens on the day
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a few hours per window, depending on the condition of the joints for a typical job. For a village or hamlet like Sindlesham, the journey is planned in advance: 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 each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Get a quote
If you are in Sindlesham and need sand mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Related advice
FAQs for Sindlesham
Is Sindlesham within the area you cover?
Yes, Sindlesham is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Winnersh station?
Yes. We work for letting agents and landlords as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick usually suit sand mastic, while modern frames normally get a flexible sealant.
Can you do several jobs on one visit?
Yes. Just list everything you need and we’ll quote it together.
More services for Sindlesham
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Renew mastic before redecorating the windows
- Ask us before painting near the mastic
- Don’t run silicone over sand mastic
- Get any rot dealt with first
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Sand mastic in Sindlesham: local notes
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.
Homes close to Church of St Catherine include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Bearwood Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Winnersh station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Sindlesham is about 2 miles north-west of Wokingham, in Wokingham. Whether you’re in the middle of Sindlesham or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Sindlesham is one of 35 places in Wokingham where we work.
Jobs for sand mastic in RG41 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on Mayfield Mews, May Fields and New Road. Neighbouring places we cover for sand mastic include Winnersh (1 mile north), Woosehill (1 mile south-east), Emmbrook (1 mile east), Wokingham (2 miles south-east) and Woodley (2 miles north). Within a short drive, we also cover Reading (4 miles north-west), Crowthorne (5 miles south-east), Newtown (3 miles north-west), Coley Park (5 miles west), Twyford (4 miles north) and Charvil (4 miles north).
Near you in Sindlesham
Typical jobs here are in homes near The Walters Arms, Maiden Erlegh Local Nature Reserve and The Forest School and the streets around them. For rail, the closest station is Winnersh station, roughly 0.7 miles north-east. A little further out are Berkshire Library & Museum of Freemasonry (under half a mile north-west) and Wokingham Hospital (1.9 miles south-east). Green spaces nearby include Holt Copse & Joel Park and Sonning Hill.
Quotes for sand mastic in Sindlesham
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Working hours on commercial sites
- Which sealant suits the joint
- How easy the joints are to reach
- The old material and how stubborn it is
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
What to tell us for a quote
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- How we’d reach the joints
- Any previous sealing or DIY work
- The address or postcode of the job
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Putty and glazing repairs
- Planning or listed building consent (your local planning authority decides)
- Sashes that need overhauling
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Brick reveals
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Timber door frames
- Tenement windows
How the job changes by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.