Greater London · England
Sand Mastic in Tooting Bec
Sand mastic in Tooting Bec from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
Sand mastic for homes and businesses in Tooting Bec
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We’re often asked to deal with silicone on a period window that looks wrong and failed mastic on an exposed elevation, across timber door frames, period & listed homes and brick reveals.
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.
There’s a 12-month guarantee on every job.
- Location
- Tooting Bec (SW17, SW19, CR4)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Frames and glazing around Tooting Bec
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.
If you look after a building such as St Boniface RC Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Tooting station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to St Augustine include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Tooting Bec is about 3 miles south-west of Stockwell, in Greater London. Tooting Bec gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Greater London, we cover 764 places, Tooting Bec among them. You can also see our page for London, about 6 miles away.
We work across SW17, SW19 and CR4 for sand mastic and the streets around it. Sand mastic is available to properties on Vant Road, Byton Road and Avarn Road and the roads around them. We also cover the places around Tooting Bec: Tooting (1 mile south-east), Colliers Wood (1 mile south), Furzedown (1 mile east), Summerstown (1 mile north-west) and Streatham Park (1 mile east). Further out, we also cover London (6 miles north-east), City of Westminster (6 miles north), Marylebone (6 miles north), Kensington (5 miles north), St Pancras (7 miles north) and Shoreditch (8 miles north-east).
What’s near Tooting Bec
Locally, jobs take us to homes and businesses close to Wandle Park, King's Head pub and Ernest Bevin College. The closest station to Tooting Bec is Tooting station, about 0.6 miles south of the centre. Well-known places in the area include Grove Hospital (under half a mile south-west) and Southside Wandsworth (2.1 miles north-west). For a walk, there’s Henman Hill and Battersea Park Lake.
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What the job involves on each surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Avoid heavy scraping on the mastic joint
- Leave the new mastic unpainted
- Make sure water runs off the sill
- Look over the window mastic once a year
Avoid painting over the new mastic, which is the traditional advice. If you are redecorating, ask us first.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Places near Tooting Bec
More services for Tooting Bec
Why act early in Tooting Bec
If you’re redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. 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. Dealing with it early is far simpler.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Tooting Bec
- Sanitary silicone with an anti-fungal additive in wet areas
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- Access and height
- Mould in or behind the old joints
What you pay reflects the work, not guesswork. That’s why we ask about the job first and give you a clear quote before work begins.
Asking for a quote
Before you ask for a quote, have a think about:
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
- If someone has resealed it before
- Where the job is, and your postcode
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Questions from Tooting Bec
Can you do sand mastic in Tooting Bec?
Yes, Tooting Bec is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing.
Can you help a landlord with a rental near Tooting station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll explain what to expect before we leave.
Is sand mastic better than silicone for my windows?
We will help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They decide whether consent is needed.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What happens on the day
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the job takes a few hours per window, depending on the condition of the joints for a typical job. In Tooting Bec, 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 start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Clear items away from the joints we’re working on
- Tell us about any water getting in
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.