Bracknell Forest · England
Sand mastic for sash & case windows in Priestwood, Bracknell Forest
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Priestwood, backed by a 12-month guarantee. Call for a quick quote.
- Mastic that needs renewing before redecorating
- Modern sealant on a period surround
- Gaps where the frame meets the masonry
Landlord and commercial work in Priestwood
We also work for property managers and facilities teams in Priestwood and across Bracknell Forest. We can quote a run of properties together, and we are fully insured.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
About our sand mastic in Priestwood
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. If you are dealing with a silicone bead on a sash window that spoils the look and gaps between timber frames and stone or brick, we can put it right.
Many houses in smaller places like Priestwood have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or drop us an email.
- Place
- Priestwood (RG42, RG12, RG45)
- Region
- Bracknell Forest
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of sand mastic
We do not publish a price list. The quote depends on:
- Any working-time requirements on site
- The amount of work
- Access and height
- How many rooms, windows or areas are involved
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
What to tell us for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- Where the property is
If you are in Priestwood and need sand mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Surface by surface
Tenement and terrace windows
Windows above ground floor need the right access. Tell us the height and we will confirm what’s needed.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Frames and glazing around Priestwood
Priestwood is part of Bracknell, one of the post-war new towns. With many homes from the post-war decades, replacement windows and doors are common. That mastic ages as well, and sills and frame heads are where leaks start. 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.
If you live in an older home near St Andrew, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Bracknell station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as Meadow Vale Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Priestwood is about 1 mile north-west of Bracknell, in Bracknell Forest. We carry out sand mastic for householders, landlords and businesses in Priestwood and the surrounding area, as part of our work across Bracknell Forest. Our Bracknell Forest coverage runs to 41 places, and Priestwood is one of them. For nearby work, see our Reading page.
Work in RG42, RG12 and RG45 works the same way as everywhere else we cover. That includes homes and businesses on Park Lane, Kiln Lane and Jock's Lane and the roads around them. Other places close to Priestwood include Temple Park (1 mile north-west), Farley Wood (1 mile west), Quelm Park (1 mile north-east), Popeswood (1 mile west) and Bracknell (1 mile south-east). Larger places within reach include Sandhurst (5 miles south), College Town (6 miles south), Little Sandhurst (5 miles south) and Owlsmoor (5 miles south). Being one of Bracknell Forest’s larger places, Priestwood has homes, rented property and businesses of every kind.
What’s near Priestwood
Around Priestwood, our work takes us to homes and buildings near Market Inn, Garth Hill College and The Brakenhale School and the streets around them. The nearest railway station is Bracknell station, roughly 0.8 miles south-east of the centre. Other landmarks nearby include The Lexicon (0.7 miles south-east) and Pinewood Hospital (2.9 miles south-west). Open spaces near Priestwood include Holt Copse & Joel Park and Heath Lake.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Avoid patching sand mastic with silicone
- Avoid heavy scraping on the mastic joint
- Don’t paint over the new mastic
- Check the mastic when you check the paintwork
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Nearby places to Priestwood
What else we do in Priestwood
When it is not the sealant
A few problems are outside what sealant work can do:
- Sashes that rattle, stick or won’t open
- Masonry that needs repairing
- Whether work needs listed building consent
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Tenement windows
- Timber door frames
- Brick reveals
FAQs for Priestwood
Should the sealant in an older Priestwood home be renewed?
If it hasn’t been replaced for some years, it’s normally worth it. Sealant is a maintenance item: how long it lasts depends on use, cleaning and exposure.
I let a flat near Bracknell station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Can you match the sealant colour?
Most of the time, yes. We will explain which colours are available and agree one before we start.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Do you have insurance?
Yes. We’re fully insured for domestic and commercial work.
Should I use sand mastic or silicone?
We will talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
What we do, step by step
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a single window, longer for several. A visit to Priestwood is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
Get a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details and send pictures if you have them.