Greater London · England
Holloway Down Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Holloway Down, backed by a 12-month guarantee. Ask us for a quote.
- Mastic worn away on windows facing the weather
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
About our sand mastic in Holloway Down
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. Typical jobs include patchy fillers round a sash window and old sand mastic that has cracked, crumbled or fallen out, on brick reveals, timber door frames 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. Whatever is in the opening now, the joint between frame and wall is what keeps the weather out, in Holloway Down as anywhere.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Holloway Down (E11, E15, E7)
- Region
- Greater London
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Holloway Down
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new mastic stays put. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Holloway Down, the repair is bigger than the sealant job would have been.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Holloway Down clients choose us
- Fully insured
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost or customer reviews.
What we’re called out for in Holloway Down
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Signs it’s time to call us include:
- Silicone on a period window that looks wrong
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
Rented homes near Maryland station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- Whether they’re fully insured
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
How we quote for sand mastic
You will get a clear quote before we start. It takes into account:
- Whether there’s mould to deal with
- The product the joint needs
- The old material and how stubborn it is
- How many areas need sealing
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
To help us quote quickly, let us know:
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or drop us an email.
How to look after the new joints
So the new joints stay in good condition:
- Make sure water runs off the sill
- Avoid patching sand mastic with silicone
- Ask a joiner to look at soft timber first
- Inspect the joints round the windows every year or so
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Places near Holloway Down
More services for Holloway Down
Frames and glazing around Holloway Down
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Holy Trinity & St Augustine of Hippo, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Holloway Down is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Holloway Down is about 1 mile north of Stratford, in Greater London. We provide sand mastic to homeowners, landlords and businesses in Holloway Down and nearby, as part of our work across Greater London. Holloway Down is one of 764 places in Greater London where we work for sand mastic. For nearby work, see our London page, about 6 miles away.
Here we cover the E11, E15 and E7 postcode area for sand mastic. If you need sand mastic at a property on Eve Road, Cary Road and Lynn Road or a nearby road, our applicators can take on the job. Other places close to Holloway Down include East Village (1 mile south-west), Temple Mills (1 mile west), Maryland (1 mile south), Stratford (1 mile south) and Leyton (1 mile north-west). Larger places within reach include London (6 miles south-west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (10 miles south-west), St Pancras (6 miles west) and Shoreditch (4 miles south-west).
Local landmarks in Holloway Down
Typical jobs here are in homes near West Ham Park, Stratford Circus and Buxton School and the streets around them. Holloway Down’s nearest station is Maryland station, about 0.6 miles south. A little further out are Tower of London (4.7 miles south-west) and Queen Mary's Hospital for the East End (0.9 miles south). Green spaces nearby include Tower Hill and Old Ford Island.
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
How the job changes by surface
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
Your questions about sand mastic in Holloway Down
I let a flat near Maryland station. Can you help?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Is parking an issue for sand mastic in Holloway Down?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
How do I get a quote for sand mastic in Holloway Down?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you cover Holloway Down?
Yes. We’re based in Crawley and work across South East England, London and Scotland.
The process
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours per window, depending on the condition of the joints. In Holloway Down, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about parking restrictions
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.