Greater London · England
Sand Mastic in Putney Vale
Window and door surrounds in Putney Vale need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
About our sand mastic in Putney Vale
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you’re dealing with open joints round the window box and mastic round period door frames that has failed, we can put it right.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Putney Vale as anywhere.
We stand behind the work with a 12-month guarantee.
- Where
- Putney Vale (SW15, KT2, SW19)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Putney Vale
Can you do sand mastic in Putney Vale?
Yes, Putney Vale is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Can parking be tricky for a visit in Putney Vale?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Is it possible to take out silicone and use sand mastic instead?
Generally, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
How do I get a quote for sand mastic in Putney Vale?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Which is right for my windows, sand mastic or modern sealant?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll advise.
How the visit works
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 a few hours for a single window, longer for several from start to finish. In a London area like Putney Vale, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Move anything stored near the joints
- Mention any tricky access
- Mention any parking rules near the property
Get a quote
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or drop us an email.
Related advice
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
What sand mastic looks like in Putney Vale
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. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.
Putney Vale is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you live in an older home near St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Putney Vale is about 2 miles north-west of Wimbledon, in Greater London. Wherever you are in the SW15 postcode area, we can carry out sand mastic at your property. Putney Vale is one of 764 towns and villages in Greater London we cover for sand mastic. There’s also a page for London, roughly 8 miles from Putney Vale.
Here we cover the SW15, KT2 and SW19 postcode area for sand mastic. Whether your property is on Stag Lane, Friars Avenue and Kingston Road or a nearby road, our applicators can take on the job. Putney Vale is on the A308, which makes it straightforward to reach with everything needed for sand mastic. Neighbouring places we cover for sand mastic include Kingston Vale (1 mile south), Coombe Hill (1 mile west), Coombe (1 mile south-west), Crooked Billet (1 mile south-east) and Copse Hill (1 mile south-east). Larger places within reach include London (8 miles north-east), City of Westminster (7 miles north-east), Marylebone (7 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Putney Vale
Locally, jobs take us to homes and businesses close to Robin Hood Primary School, Duke of Cambridge pub and Wimbledon Common. The nearest railway station is Raynes Park station, about 2 miles south-east. Well-known places in the area include Wimbledon Windmill Museum (0.8 miles east) and Putney Exchange (2.5 miles north-east). For a walk, there’s Kew Gardens Lake and Fishpond Wood and Beverley Meads.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Putty and glazing repairs
- Damaged stone surrounds
- Decisions on consent for listed homes
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Where we work in Putney Vale
- Brick reveals
- Tenement windows
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Timber door frames
Leave it or put it right?
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. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- Fully insured
- Experience in homes, commercial sites and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- 12-month guarantee on every job
Take a look at what affects the cost or what customers say.
Do you need sand mastic in Putney Vale?
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Look out for any of the following:
- Silicone on a period window that looks wrong
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Gaps between timber frames and stone or brick
If you look after a building such as Hall School Wimbledon, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- Is the old sealant removed completely?
- What insurance they hold
- Which sealant they’ll use, and why
- Is VAT in the price?
Landlord and commercial work in Putney Vale
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Aftercare tips
A little care helps the new joints last. We recommend:
- Keep sills and gutters clear so water drains away
- Go gently near the mastic when preparing windows
- Don’t run silicone over sand mastic
- Renew mastic before redecorating the windows
Leave the new mastic unpainted, as traditional guidance advises. If you are redecorating, ask us first.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.