Greater London · England
Sand Mastic in Pitshanger
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Pitshanger, with a one-year guarantee on every job. Call for a quick quote.
- Tired mastic found when preparing windows for paint
- Open joints round the window box
- Cracked mastic round a front door frame
Leave it or put it right?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why choose Mr Mastic in Pitshanger
- Anti-fungal sanitary silicone in wet areas
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- Quality sealants from Arbo and Everbuild
Read our cost guide and what customers say.
About our sand mastic in Pitshanger
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. 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 have crumbling sand mastic round a window and window mastic to renew ahead of painting, we can put it right, whatever the surface.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. The mastic around them dries out and cracks with age, letting in draughts and water.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Pitshanger (W5, W13, UB6)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Pitshanger
Can parking be tricky for a visit in Pitshanger?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Is Pitshanger in your area for sand mastic?
Yes, Pitshanger is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
What should I tell you?
Let us know what needs doing and where, with photos by email if possible. If we need more, we will ask.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Do you remove the old sealant?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Different surfaces, different methods
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
How it works
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a single window, longer for several. 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.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Tell us about any previous sealing or DIY attempts
Getting a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
Quotes for sand mastic in Pitshanger
Jobs vary more than people expect. What affects the quote:
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Working hours on commercial sites
- Whether there’s mould to deal with
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- What’s wrong with the joints now
- Whether it’s a home or a business
- The rough size of the job
- Pictures of the joints, sent by email
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Sand mastic in Pitshanger: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking.
If you let a flat or house near Castle Bar Park station, older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Church of St Barnabas include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Pitshanger is about 1 mile north of Ealing, in Greater London. Homes, rented property, offices and hotels in Pitshanger is covered for sand mastic. Every job comes with our one-year guarantee. Pitshanger is one of 764 towns and villages in Greater London we cover. For nearby work, see our London page.
All of W5, W13 and UB6 is covered for sand mastic. If you need sand mastic at a property on Selby Road, Argyle Road and Kent Avenue or anywhere close by, our applicators can take on the job. Other places close to Pitshanger include Brentham Garden Suburb (1 mile east), Perivale (1 mile north), Ealing (1 mile south), Hanwell (2 miles south-west) and West Ealing (2 miles south-west). We also work in nearby towns such as London (10 miles east), City of Westminster (7 miles east), Marylebone (7 miles east), Kensington (5 miles east), St Pancras (8 miles east) and Shoreditch (10 miles east).
Landmarks near Pitshanger
Typical jobs here are in homes near Brentham Clubhouse pub, St Benedict's School and Ealing Independent College, among other places. Pitshanger’s nearest station is Castle Bar Park station, about 0.8 miles west of the centre. Nearby you’ll also find Ealing Hospital (1.9 miles south-west) and London Designer Outlet (2.4 miles north-east). Not far away are Middle Lake and Fox Wood.
What we’re called out for in Pitshanger
Water gets into small cracks in the mastic and pushes it out. Exposed elevations generally fail first.
These are the problems we’re asked about most:
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
Managing a site like North Ealing Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Are they insured?
- How hidden problems are handled
- How much experience the applicator has
- Whether they seal over old material or remove it
Honest limits
New sealant cannot fix everything, and we will tell you before we start. It won’t solve:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
- Putty and glazing repairs
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Pitshanger
- Timber door frames
- Sash and case windows
- Stone surrounds
- Tenement windows
- Brick reveals
- Period & listed homes
Nearby places to Pitshanger
Other services in Pitshanger
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.