Bracknell Forest · England
Sand mastic for sash & case windows in Easthampstead, Bracknell Forest
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Easthampstead and across Bracknell Forest. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
How we handle sand mastic in Easthampstead
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. Typical jobs include mastic worn away on windows facing the weather and tired mastic found when preparing windows for paint, on period & listed homes, tenement windows and timber door frames.
In a smaller place like Easthampstead, some walls face open ground and catch the full force of the weather. The mastic around frames on those walls tends to age faster.
A one-year guarantee comes as standard.
- Location
- Easthampstead (RG12)
- Region
- Bracknell Forest
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Easthampstead
Do you work for landlords with property near Bracknell station?
Yes, rental work is part of what we do. 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 work begins.
Should the sealant in an older Easthampstead home be renewed?
Normally, yes, if it’s cracked, shrunk, mouldy or coming away. New sealant will not stick to old, so the old bead has to come out completely first.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll advise.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
Can you do several jobs on one visit?
Yes. Just list everything you need and we’ll quote it together.
Also near Easthampstead
More services for Easthampstead
Work for landlords, hotels and businesses
If you manage several properties in or around Easthampstead, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Take care around the mastic when scraping paint
- Keep modern sealant off the mastic
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours per window, depending on the condition of the joints. In a smaller place like Easthampstead, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Read more
How we quote for sand mastic
There’s no set price list. What we look at:
- Which sealant suits the joint
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What we need to know
What to tell us when you ask for a quote:
- Any access issues, like height or stairs
- If someone has resealed it before
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Windows and doors in Easthampstead
Easthampstead is part of Bracknell, one of the post-war new towns. Many homes date from the post-war decades, and many will have had their original windows replaced. The mastic around replacement frames ages too, and gaps at sills and frame heads are where water gets in. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Bracknell station, any sash windows need sound mastic to keep draughts and rain out. For site and facilities teams at buildings such as Fox Hill Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Easthampstead is about 1 mile south-west of Bracknell, in Bracknell Forest. Anywhere in RG12, we can carry out sand mastic at your property. 41 places in Bracknell Forest are on our list, large and small. Our Reading page covers work nearby, about 10 miles away.
Work in RG12 is quoted and booked the same way as anywhere else. We cover properties on Mill Lane, Redvers Road and Rectory Lane and the roads around them. Being close to the A3095, Easthampstead is simple for us to get to for sand mastic. We also cover the places around Easthampstead: Wildridings (1 mile north-west), Bracknell (1 mile north-east), Harmans Water (1 mile east), Jennett's Park (1 mile east) and Priestwood (1 mile north). Further out, we also cover Sandhurst (4 miles south), College Town (4 miles south), Little Sandhurst (4 miles south-west), Owlsmoor (3 miles south) and Winkfield Row (3 miles north-east).
Near you in Easthampstead
We work in homes and buildings around The Brakenhale School, The Brakenhale School and The Horse And Groom Public House. Easthampstead’s nearest station is Bracknell station, about 0.6 miles north of the centre. Well-known places in the area include Pinewood Hospital (2.1 miles south-west) and The Lexicon (0.9 miles north). Open spaces near Easthampstead include Heath Lake and Wildmoor Heath.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Sashes that rattle, stick or won’t open
- Broken panes
- Decayed frames that need repair
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Stone surrounds
- Timber door frames
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
What we are called out for in Easthampstead
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
It’s worth asking for a quote if you see:
- Cement or filler used on old window joints that has cracked
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
Homes close to St Michael and St Mary Magdalene's Church 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 booking
- How the joint is cleaned and prepared
- Is VAT in the price?
- Are they insured?
- What happens if the job turns out different