Kent · England
Sand mastic for sash & case windows in Stockbury, Kent
Sand mastic across Stockbury and nearby, with old sealant always removed completely.
- Gaps between timber frames and stone or brick
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Avoid patching sand mastic with silicone
- Go gently near the mastic when preparing windows
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
Do not run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Sand mastic in Stockbury
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap so the surround looks right again. We’re often asked to deal with mastic that needs renewing before redecorating and open joints round the window box, across brick reveals, sash and case windows and timber door frames.
Homes in small places like Stockbury often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months.
- Where
- Stockbury (ME9)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Stockbury
Other services in Stockbury
Surface by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. It’s renewed by hand.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
The process
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes a few hours for a single window, longer for several in most cases. In a small place like Stockbury, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or send us an email.
Read more
What affects the quote in Stockbury
We do not publish a price list. The quote depends on:
- The number of rooms or windows
- The type of sealant required
- Access and height
- Whether there’s mould to deal with
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the job is, and your postcode
- The type of property
- A few pictures by email, if you can
- How we’d reach the joints
If you’re in Stockbury and need sand mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Common problems we fix in Stockbury
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
It’s worth asking for a quote if you see:
- Modern sealant on a period surround
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- Cement or filler used on old window joints that has cracked
In the older streets around St Mary Magdalene Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
What to look for in a quote
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- What insurance they hold
Frames and glazing around Stockbury
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Newington station, any sash windows need sound mastic to keep draughts and rain out.
Stockbury is about 4 miles west of Sittingbourne, in Kent. Whether you are in the middle of Stockbury or further out, sand mastic is available for homes and businesses alike. Our Kent coverage runs to 922 places, and Stockbury is one of them. Our Chelmsford page covers work nearby.
Every address in ME9 is within our area for sand mastic. That includes homes and businesses on The Street, Hill Green Road and Harrow Court. Nearby, we also carry out sand mastic in Yelsted (1 mile west), South Green (1 mile south-east), Hartlip (1 mile north), Lower Hartlip (1 mile north) and Danaway (2 miles north-east). Within a short drive, we also cover Maidstone (6 miles south-west), Sittingbourne (4 miles east), Gravesend (13 miles north-west), Faversham (11 miles east), Northfleet (15 miles north-west) and Minster (9 miles north-east).
What’s near Stockbury
We work in homes and buildings around The Three Squirrels pub and Stockbury Hill Wood and the streets around them. The closest station to Stockbury is Newington station, about 2.2 miles north-east. Other landmarks nearby include Bayford Court (4.6 miles east) and KIMS hospital (4.5 miles south-west). The countryside around Stockbury includes Detling Hill.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
- Broken panes
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Stockbury
- Brick reveals
- Period & listed homes
- Sash and case windows
- Timber door frames
- Stone surrounds
- Tenement windows
Questions from Stockbury
Do you work for landlords with property near Newington station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Do you cover Stockbury for sand mastic?
Yes. We work across London and the South East, and Stockbury is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.
Where is Mr Mastic based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Are you fully insured?
Yes. Full insurance covers our work.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
How long does sand mastic take?
Most jobs take anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. We will confirm how long when we quote.