Reading · England
Sand Mastic in Emmer Green
Our applicators work in Emmer Green on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Gaps round a timber door in stone or brick
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
What affects the quote in Emmer Green
Jobs vary more than people expect. What affects the quote:
- How many areas need sealing
- Access and height
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- The type of property
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
How we handle sand mastic in Emmer Green
Across Emmer Green, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you’re dealing with mastic worn away on windows facing the weather and modern sealant on a period surround, we can help, on timber door frames, stone surrounds and tenement windows alike.
Around Emmer Green, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
A one-year guarantee comes as standard.
- Where
- Emmer Green (RG4)
- Wider area
- Reading
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Surface by surface
Period and listed homes
Period homes look their best with traditional materials.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Why it’s worth doing now in Emmer Green
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. In an older home around Emmer Green, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Why us?
- An ARBOMaster approved applicator
- We never seal over old sealant
- Over 20 years’ experience
- Anti-fungal silicone where joints get wet
See our cost guide and customer reviews.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Don’t run silicone over sand mastic
- Sort the mastic before the decorators arrive
- Have rotten timber repaired before new mastic goes in
- Check with your local planning authority if your home is listed
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Also near Emmer Green
Also in Emmer Green
What sand mastic looks like in Emmer Green
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. With historic houses such as Mapledurham House (about 3.2 miles west) nearby, there’s older building stock in the area around Emmer Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Reading station, any sash windows need sound mastic to keep draughts and rain out. Managing a site like The Hill Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Barnabas Church Hall, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Emmer Green is about 1 mile north-east of Caversham, in Reading. Every kind of property in Emmer Green can book us for sand mastic. The work is guaranteed for a year. Our area takes in 34 places across Reading, large and small.
We work across the RG4 postcode area for sand mastic. If you need sand mastic at a property on Kiln Road, Grove Road and Barnes Road or a nearby road, our applicators can take on the job. If you are just outside Emmer Green, we cover Caversham (1 mile south-west), Caversham Park Village (1 mile east), Littlestead Green (1 mile north-east), Dunsden Green (1 mile north-east) and Chalkhouse Green (1 mile north-west). Further out, we also cover Norcot (3 miles south-west), Tilehurst Within (4 miles south-west), Shinfield (5 miles south), Arborfield Garrison (7 miles south), Horncastle (4 miles south-west) and Whitley Wood (5 miles south).
Near you in Emmer Green
Around Emmer Green, our work takes us to homes and buildings near The White Horse pub, Chiltern Nursery Nurse Training School and Highdown School and Sixth Form Centre and the streets around them. The closest station to Emmer Green is Reading station, about 1.7 miles south of the centre. Other landmarks nearby include Broad Street Mall (2 miles south) and Royal Berkshire Hospital (2.2 miles south). The countryside around Emmer Green includes Sonning Hill and Fobney Island Wetland Reserve.
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to a full day, depending on how many windows. For a job in Emmer Green, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
How to prepare
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
How to get a quote
If you’re in Emmer Green and need sand mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Related advice
Common questions in Emmer Green
Is Emmer Green within the area you cover?
Yes. Emmer Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Emmer Green for sand mastic?
Yes, Emmer Green is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.
What does sand mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Where are you based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
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.
For landlords and businesses
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
