Oxfordshire · England
Sand Mastic in Childrey
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Childrey, backed by a one-year guarantee. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
The process
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for a single window, longer for several. In a small place like Childrey, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling 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.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Tell us about any water getting in
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Related advice
Sand mastic in Childrey
On many period windows, sand mastic looks right and suits the building. Newer frames generally get a flexible sealant instead, and we will talk through which suits your home. We are often asked to deal with a silicone bead on a sash window that spoils the look and draughts and rain around sash boxes, across timber door frames, sash and case windows and tenement windows.
Mastic can only go onto a dry, clean joint, so window work in Childrey is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a one-year guarantee.
- Place
- Childrey (OX12)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Childrey questions
Will you come out to Childrey?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Childrey in your area for sand mastic?
Yes. Our work covers London and the South East, and Childrey is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Can tenants book the work?
Yes. Check with your landlord; we can send the quote to them too.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Sand mastic in Childrey: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Childrey is about 2 miles west of Wantage, in Oxfordshire. From the centre of Childrey to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Childrey is one of 443 towns and villages in Oxfordshire we cover for sand mastic. We also work in Oxford, around 16 miles away.
Every address in OX12 is covered for sand mastic, from the main roads to the quietest streets. Local streets include High Street, Hollow Way and Stowhill. We also cover the places around Childrey: West Challow (1 mile north-east), East Challow (1 mile east), Letcombe Regis (1 mile south-east), Letcombe Bassett (2 miles south-east) and Wantage (2 miles east). Further out, we also cover Didcot (10 miles east), Abingdon-on-Thames (11 miles north-east), Witney (14 miles north), Carterton (14 miles north), Grove (3 miles north-east) and Faringdon (7 miles north-west).
What’s near Childrey
Typical jobs here are in homes near King Alfred's and The Hatchet Public House. A little further out are Williams F1 Grand Prix Collection (3.8 miles north-east). For a walk, there’s Letcombe Valley and Chain Hill.
Signs you need sand mastic in Childrey
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
If you look after a building such as The Ridgeway Church of England (C) Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- What insurance they hold
- What preparation is included
- Who turns up on the day
- Whether they seal over old material or remove it
How the job changes by surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
What affects the quote in Childrey
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- The product the joint needs
- Access and height
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or email us and we will give you an honest view and a quote.
What we need to know
Photos by email are helpful but not essential. Please mention:
- The address or postcode of the job
- If someone has resealed it before
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
If you’re in Childrey and need sand mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. Older cottages and farmhouses around Childrey can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- 20+ years of sealant experience
- An ARBOMaster approved applicator
- We are fully insured
- Every job guaranteed for a year
See our cost guide and what customers say.
Nearby places to Childrey
Other services in Childrey
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
When it isn’t the sealant
In fairness, some problems need a different trade:
- Damaged stone surrounds
- Broken panes
- Sashes that need overhauling
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Stone surrounds
- Sash and case windows
- Brick reveals
- Tenement windows