Greater London · England
Sand Mastic in Cubitt Town
Our applicators work in Cubitt Town on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Gaps round a timber door in stone or brick
- Open joints round the window box
- Mastic worn away on windows facing the weather
Sand mastic in Cubitt Town
We work across Cubitt Town renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand for a neat, traditional finish. If you are dealing with failed mastic on an exposed elevation and a silicone bead on a sash window that spoils the look, we can help, on sash and case windows, timber door frames and brick reveals alike.
Many London homes are flats, with windows high above the street. Who looks after the outside of the frames can depend on the lease, so check that first, and access in Cubitt Town is something to talk through when you book.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Location
- Cubitt Town (E14, SE10, E22)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to a full day, depending on how many windows. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
Get a quote
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.
Advice
Cubitt Town questions
Do you work for landlords with property near Canary Wharf station?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or email us with the details for a clear quote.
Do you cover Cubitt Town for sand mastic?
Yes, Cubitt Town is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Should I check with the council before work on a listed or conservation-area home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is it possible to take out silicone and use sand mastic instead?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
Can I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we will agree it with you first.
Why it’s worth doing now in Cubitt Town
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Cubitt Town.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why book with us
- 20+ years of sealant experience
- ARBOMaster approved applicator
- Tidy, careful work
- One-year guarantee on every job
Take a look at what affects the cost or what customers say.
What affects the quote in Cubitt Town
We quote each job individually. These are the things that affect it:
- Access and height
- Which sealant suits the joint
- When we can work, for business premises
- Whether there’s mould to deal with
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
What we need to know
Photos help, but a description is a good start. Please mention:
- The problem you’ve noticed
- Any previous sealing or DIY work
- Where the job is, and your postcode
- Whether it’s a home or a business
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.
When to call us in Cubitt Town
Rain on the window surround works into any crack and pushes it out. Exposed elevations usually fail first.
Look out for any of the following:
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
For landlords with property near Canary Wharf station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- How long to leave it before use
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- What insurance they hold
Surface by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Avoid patching sand mastic with silicone
- Take care around the mastic when scraping paint
- Get any rot dealt with first
- Check with your local planning authority if your home is listed
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Frames and glazing around Cubitt Town
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Queen's House (about 1.1 miles south) are a reminder that the area around Cubitt Town has older buildings as well as new. Where a home is older, 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 Cubitt Town Infants' School, its window and door frames need their mastic kept sound, just like a home’s. As a London address, Cubitt Town can be tricky for parking: let us know about parking bays, permits or a driveway.
Cubitt Town is about 1 mile north of Greenwich, in Greater London. Homes, rented property, offices and hotels in Cubitt Town is covered for sand mastic. Every job comes with our one-year guarantee. Our Greater London coverage runs to 764 places, and Cubitt Town is one of them.
Postcode districts we cover here for sand mastic: E14, SE10 and E22. We cover properties on Undine Road, Amsterdam Road and Preston's Road. With the A1206 close by, Cubitt Town is simple for us to get to. Neighbouring places we cover for sand mastic include North Greenwich (1 mile south-west), Isle of Dogs (1 mile south-west), Millwall (1 mile south-west), Maze Hill (1 mile south) and Greenwich (1 mile south). Within a short drive, we also cover London (4 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (4 miles north-west).
Near you in Cubitt Town
We work in homes and buildings around Tower Hamlets College, Mudchute Park and Farm and Canary Wharf College 3 and the streets around them. The closest station to Cubitt Town is Canary Wharf station, roughly 0.8 miles north-west of the centre. Well-known places in the area include Greenwich Castle (1.4 miles south) and Poplar Hospital (1 mile north). Green spaces nearby include Sue Godfrey Nature Park and Tower Hill.