Slough · England
Sand mastic for sash & case windows in Ditton, Slough
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Ditton, backed by a 12-month guarantee. Call for a quick quote.
- Silicone on a period window that looks wrong
- Patchy fillers round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
How the job changes by surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Sand mastic in Ditton
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted, so ask us before you decorate. Common call-outs are for mastic dropping out of the joint and old cement repairs round a window that have failed, across brick reveals, timber door frames and stone surrounds.
Outdoor sealant needs dry, clean surfaces, so work on frames around Ditton is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Ditton (SL3)
- Region
- Slough
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Ditton
More services for Ditton
Do you need sand mastic in Ditton?
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
If you can see any of these, it’s time to have the joints looked at:
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
- Draughts and rain around sash boxes
Rented homes near Datchet station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Before you book anyone
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
- How long the guarantee is
- How the surfaces are prepared before sealing
FAQs for Ditton
Will you come out to Ditton?
Yes. Ditton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Ditton in your area for sand mastic?
Yes. We work across London and the South East, and Ditton is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Can you match the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before we start.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Is the work guaranteed?
All our work has a one-year guarantee, and we are fully insured.
What affects the quote in Ditton
For a quick quote, just ask. What matters most is:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- Whether the work is at height
- Whether old sealant or filler has to be cut out
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, please include:
- A few pictures by email, if you can
- The problem you’ve noticed
- The address or postcode of the job
- How many joints, rooms or windows are involved
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
How it works
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job usually takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Ditton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details and send photos if you have them.
Advice
Keeping the joints in good condition
After the cure time, these simple habits help:
- Get any rot dealt with first
- Take care around the mastic when scraping paint
- Keep modern sealant off the mastic
- Inspect the joints round the windows every year or so
Leave the new mastic unpainted, which is the traditional advice. If you are redecorating, ask us first.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.
DIY sealant or a professional job?
If you’re 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 fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Sand mastic in Ditton: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Frogmore House (about 1.7 miles south-west) are a reminder that the area around Ditton has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Castleview Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near St Francis Assisi, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Ditton is about 2 miles south-east of Slough, in Slough. Whether you’re in the middle of Ditton or further out, we cover sand mastic for every kind of property. 31 places in Slough are on our list, from the larger towns to small villages. You can also see our page for Reading, about 18 miles away.
Work in SL3 works the same way as everywhere else we cover. If you need sand mastic at a property on Thorn Road, Ditton Road and London Road or a nearby road, our applicators can take on the job. Close by, we work in Datchet (1 mile south-west), Myrke (1 mile north-west), Brands Hill (1 mile south-east), Sunnymeads (2 miles south) and Colnbrook (2 miles east). We also work in nearby towns such as Cippenham (4 miles north-west), Britwell (4 miles north-west), Burnham (5 miles north-west), Stoke Poges (4 miles north), Huntercombe (4 miles north-west) and Farnham Common (5 miles north-west).
Landmarks near Ditton
In Ditton, that means homes and buildings near Ditton Park, Ditton Park Academy and Upton Court Grammar School and the streets around them. The nearest railway station is Datchet station, roughly 0.8 miles south-west of the centre. Well-known places in the area include Upton Hospital (1.5 miles north-west) and Museum of Eton Life (1.9 miles west). Open spaces near Ditton include Staines Reservoirs and Stoke Common.
Why it’s worth doing now in Ditton
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Ditton can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on how much there is to do, 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.
Why Ditton clients choose us
- We leave the area clean and tidy
- Old sealant always removed completely
- More than 20 years in sealant work
- 4.9 on Google from 180+ five-star reviews
See our cost guide or our reviews.