Greater London · England
Sand Mastic in Fulham
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Fulham, with a 12-month guarantee on every job. Call for a quick quote.
- Window mastic to renew ahead of painting
- Gaps between timber frames and stone or brick
- Draughty sash windows at the surround
Sand mastic in Fulham, done properly
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Typical jobs include silicone on a period window that looks wrong and mastic round period door frames that has failed, on timber door frames, brick reveals and period & listed homes.
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.
Every job is covered by our 12-month guarantee, wherever you are in Greater London.
- Location
- Fulham (SW6, W6, W14)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for sand mastic
The price is agreed before any work begins. It takes into account:
- Whether there’s mould to deal with
- The product the joint needs
- How many areas need sealing
- Any working-time requirements on site
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or email us 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:
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- The address or postcode of the job
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Nearby places to Fulham
What else we do in Fulham
When it is not the sealant
It helps to know what we can’t do too:
- Decayed frames that need repair
- Decisions on consent for listed homes
- Sashes that rattle, stick or won’t open
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Timber door frames
- Brick reveals
- Tenement windows
Do you need sand mastic in Fulham?
Water gets into small cracks in the mastic and loosens it further. Exposed elevations usually fail first.
The most common problems we see are:
- Draughty sash windows at the surround
- Mastic worn away on windows facing the weather
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
Fulham is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- What happens if they find a problem under the old sealant
- Whether the sealant suits the joint
- How the colour is chosen
- Is the old sealant removed completely?
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Check the mastic when you check the paintwork
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
- Sort the mastic before the decorators arrive
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Leave it or put it right?
Filling over old, loose mastic does not last. We remove the loose material first so the new mastic stays put. 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 for homes in Fulham.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- Homes, businesses and hotels
- Anti-fungal sanitary silicone in wet areas
- Fully insured
- 4.9 on Google from 180+ five-star reviews
See what affects the cost or our reviews.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes a few hours per window, depending on the condition of the joints. In Fulham, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Tell us about any previous sealing or DIY attempts
Ask for a quote
For sand mastic in Fulham, 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 any work starts.
Read more
Common questions in Fulham
Is parking an issue for sand mastic in Fulham?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Do you cover Fulham for sand mastic?
Yes, Fulham is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Where are you based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How do I get a quote for sand mastic in Fulham?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Surface by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
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.
Windows and doors in Fulham
With historic houses such as Fulham Palace (about 0.7 miles south-west) nearby, there’s older building stock in the area around Fulham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. In a converted house or block, who looks after the windows depends on the lease, so check that before booking.
Managing a site like St Johns Walham Green Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around St. Peter's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Fulham is about 2 miles south of Kensington, in Greater London. Our applicators cover sand mastic for householders, landlords and businesses in Fulham and nearby, as part of our work across Greater London. Fulham is one of 764 towns and villages in Greater London we cover for sand mastic.
We work across the SW6, W6 and W14 postcode area for sand mastic. You’ll find streets such as Lampeter Square, Fulham High Street and Hurlingham Square, all of which we cover. With the A219 and A304 close by, Fulham is easy for our applicators to reach for sand mastic. We also cover the places around Fulham: West Kensington (1 mile north), North End (1 mile north), Putney (1 mile south-west), Brook Green (1 mile north-west) and Hammersmith (2 miles north-west). Larger places within reach include London (5 miles east), City of Westminster (3 miles north-east), Marylebone (4 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (11 miles north-east).
Near you in Fulham
We work in homes and buildings around Parsons Green (park), Fulham Cross Girls' School and Language College and The Cock pub. Also close by are Queensmill School (0.7 miles south-east) and Polish Library POSK in London (1.7 miles north-west). Fulham’s nearest station is West Brompton station, roughly 0.8 miles north-east. A little further out are Chelsea Stadium Tour And Museum (0.8 miles east) and Putney Exchange (1.1 miles south). Green spaces nearby include Battersea Park Lake and Campden Hill.