Greater London · England
Sand Mastic in Haggerston
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Haggerston. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Patchy fillers round a sash window
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
Sand mastic in Haggerston
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We are often asked to deal with mastic that needs renewing before redecorating and gaps where the frame meets the masonry, across tenement windows, timber door frames and sash and case windows.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, letting in draughts and water.
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.
- Place
- Haggerston (N1, E2, E8)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Leave the new mastic unpainted
- Plan mastic work ahead of painting
- Make sure water runs off the sill
- Inspect the joints round the windows every year or so
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Nearby places to Haggerston
What else we do in Haggerston
Landlords, agents and businesses in Haggerston
If you manage several properties in or around Haggerston, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Why act early in Haggerston
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
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 us?
- Domestic, commercial and hotel work
- More than 20 years in sealant work
- We are fully insured
- Old sealant always removed completely
Read our cost guide and customer reviews.
Haggerston homes and the weather
Historic houses like Sutton House (about 1.5 miles north-east) are a reminder that the area around Haggerston has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Hoxton station, older sash windows in a rental need their mastic kept sound to keep the weather out. For an older house near a landmark such as Church of St Columba, frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Randal Cremer Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Haggerston is about 1 mile east of Hoxton, in Greater London. Homes, rented property, offices and hotels in Haggerston is covered for sand mastic. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, and Haggerston is one of them.
Postcode districts we cover here for sand mastic: N1, E2 and E8. We cover properties on Hyde Road, Glebe Road and Ufton Road and the roads around them. Haggerston is on the A1208, so it’s easy for us to get to with everything needed for sand mastic. We also cover the places around Haggerston: Hoxton (1 mile west), Shoreditch (1 mile south), De Beauvoir Town (1 mile north), Kingsland (1 mile north) and Bethnal Green (1 mile south-east). Larger places within reach include London (3 miles south), City of Westminster (4 miles south-west), Marylebone (3 miles west), Kensington (6 miles south-west), Walthamstow (4 miles north-east) and Hampstead (5 miles west).
Landmarks near Haggerston
Locally, jobs take us to homes and businesses close to The Prince's School of Traditional Arts, Haggerston Park and Stag's Head pub and the streets around them. Also close by are Bishopsgate Institute Special Collections and Archives (1.1 miles south) and The Bridge Academy (within half a mile north-east). There’s a railway station in Haggerston itself: Hoxton station. Nearby you’ll also find Museum of the Home (under half a mile south) and Montfichet's Tower (1.8 miles south-west). Open spaces near Haggerston include St. James's Park Lake and Barnsbury Wood.
How it works
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a single window, longer for several. In Haggerston, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
- Clear the area around the work
How to get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved.
Read more
Common questions in Haggerston
Can you help a landlord with a rental near Hoxton station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Can you do sand mastic in Haggerston?
Yes. We work across London and the South East, and Haggerston is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
What does sand mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Where are you based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you remove the old sealant?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can I choose the sealant colour?
Most of the time, yes. We’ll tell you which colours the right product comes in.
Are you insured?
Yes. We’re fully insured for every job we do.
How we quote for sand mastic
There’s no set price list, because jobs vary so much. What we look at:
- Which sealant suits the joint
- Access and height
- Working hours on commercial sites
- The old material and how stubborn it is
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
To make quoting easier, please include:
- The type of property
- Any previous sealing or DIY work
- What’s wrong with the joints now
- Any access issues, like height or stairs
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
DIY sealant or a professional job?
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 fails, we can still redo it.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
When something else is needed
In fairness, some problems need a different trade:
- Planning or listed building consent (your local planning authority decides)
- Sashes that need overhauling
- Timber that has rotted
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Timber door frames
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds
- Period & listed homes