Greater London · England
Sand mastic for sash & case windows in Surrey Quays, Greater London
Sand mastic for Surrey Quays and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Old cement repairs round a window that have failed
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps between timber frames and stone or brick
Sand mastic for homes and businesses in Surrey Quays
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. Typical jobs include crumbling sand mastic round a window and modern sealant on a period surround, on period & listed homes, tenement windows and stone surrounds.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Surrey Quays.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Surrey Quays (SE16, SE8, SE15)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
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 job takes a few hours for a single window, longer for several in most cases. In Surrey Quays, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or send us an email and describe the job.
Read more
What affects the cost of sand mastic
For a quick quote, just ask. The main things that affect it are:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- Which sealant suits the joint
- Any mould that needs treating
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Helping us quote
To help us quote quickly, let us know:
- Where the property is
- Photos by email, if that is easy
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
There’s no standard price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
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.
How the job changes by surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Why it’s worth doing now in Surrey Quays
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In a flat in Surrey Quays, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Why choose Mr Mastic in Surrey Quays
- We are fully insured
- Every job guaranteed for a year
- 20+ years of sealant experience
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or what customers say.
Your questions about sand mastic in Surrey Quays
Can you help a landlord with a rental near Surrey Quays station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Is parking a problem for a job in Surrey Quays?
Parking in Surrey Quays, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
How long does sand mastic take to harden?
It forms a skin fairly soon and it hardens fully over a longer time. The weather and joint depth both affect it.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
Places near Surrey Quays
Also in Surrey Quays
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Planning or listed building consent (your local planning authority decides)
- Masonry that needs repairing
- Decayed frames that need repair
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Surrey Quays
- Tenement windows
- Stone surrounds
- Sash and case windows
- Timber door frames
- Period & listed homes
- Brick reveals
Do you need sand mastic in Surrey Quays?
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Common reasons people contact us are:
- Mastic round period door frames that has failed
- Draughty sash windows at the surround
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
As a London address, Surrey Quays can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- How long the guarantee is
- Which colour the sealant will be
- Are they insured?
- Who does the work, and how experienced they are
Surrey Quays homes and the weather
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. Historic houses like Queen's House (about 1.9 miles south-east) are a reminder that the area around Surrey Quays 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 Rotherhithe Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near St Katharine with St Bartholomew, the joint between an old wall and a newer frame is normally the first place rain gets in.
Surrey Quays is about 2 miles south-east of Whitechapel, in Greater London. Every kind of property in Surrey Quays is covered for sand mastic. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, Surrey Quays among them.
Jobs for sand mastic in SE16, SE8 and SE15 works the same way as everywhere else we cover. Whether your property is on Bush Road, Gomm Road and Lower Road or anywhere close by, our applicators can take on the job. Main roads around Surrey Quays include the A200 and A2208, which makes travel easy. Neighbouring places we cover for sand mastic include Rotherhithe (1 mile north), Surrey Canal (1 mile south-west), South Bermondsey (1 mile south-west), Millwall (1 mile east) and North Greenwich (1 mile east). Within a short drive, we also cover City of Westminster (5 miles west), Marylebone (5 miles west), Kensington (7 miles west), St Pancras (4 miles north-west), Shoreditch (3 miles north-west) and Walthamstow (7 miles north).
Local landmarks in Surrey Quays
In Surrey Quays, that means homes and buildings near Spa School, Deptford Park and Bacon's College, among other places. Surrey Quays has its own railway station: Surrey Quays station. Well-known places in the area include Surrey Quays Shopping Centre (less than half a mile north-west) and Brunel Museum (0.8 miles north-west). For a walk, there’s Lavender Pond and Tower Hill.