Greater London · England
Sand mastic for sash & case windows in Plaistow, Greater London
We cover Plaistow for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.
- Modern sealant on a period surround
- Old cement repairs round a window that have failed
- Cracked mastic round a front door frame
How we handle sand mastic in Plaistow
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and draughts and rain around sash boxes, on tenement windows, stone surrounds and brick reveals.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease generally says who is responsible for the windows, so it’s worth checking before booking, and access in Plaistow is something to talk through when you book.
Your job is guaranteed for a year, as with all our work.
- Place
- Plaistow (E13, E16, E6)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Timber that has rotted
- Whether work needs listed building consent
- Crumbling stone or brickwork round the window
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
What we seal
- Brick reveals
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Timber door frames
- Tenement windows
Leave it or put it right?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. 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. Putting it right early is much less trouble for homes in Plaistow.
Leaving a failed joint generally 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 for an honest opinion and a quote.
Why us?
- Neat joints and a tidy finish
- Arbo and Everbuild products
- Fully insured
- ARBOMaster approved applicator
Take a look at what affects the cost or what customers say.
Towns and villages near Plaistow
More services for Plaistow
Windows and doors in Plaistow
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. With historic houses such as Queen's House (about 3.2 miles south) nearby, there’s older building stock in the area around Plaistow as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Kaizen Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Memorial Community Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Plaistow is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Plaistow is about 5 miles east of London, in Greater London. If you need sand mastic in Plaistow, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Greater London from our Crawley base, Plaistow included. Plaistow is one of 764 places in Greater London where we work for sand mastic.
Postcode districts we cover here for sand mastic: E13, E16 and E6. If you need sand mastic at a property on Eve Road, Ivy Road and May Road or a nearby road, we can help. Being close to the A1011, Plaistow is easy for our applicators to reach for sand mastic. Close by, we work in Greengate (1 mile north-east), Canning Town (1 mile south), Upton Park (1 mile north-east), West Ham (1 mile north-west) and Upton (1 mile north). Larger places within reach include London (5 miles west), City of Westminster (8 miles west), Marylebone (7 miles west), Kensington (10 miles west), St Pancras (6 miles west) and Shoreditch (4 miles west).
Landmarks near Plaistow
In Plaistow, that means homes and buildings near Keir Hardie Park, The Service for Deaf and Partially Hearing Children and The Earl Of Derby Public House and the streets around them. The closest station to Plaistow is West Ham station, about 0.9 miles west. A little further out are Newham University Hospital (0.5 miles east) and Greenwich Castle (3.4 miles south). For a walk, there’s Old Ford Island and Hollow Pond.
How the job changes by surface
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
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.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. In Plaistow, 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.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Keep children and pets away from the work area
- Mention any tricky access
- Mention any parking rules near the property
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.
Advice
How we quote for sand mastic
You’ll get a clear quote before work begins. It takes into account:
- Which sealant suits the joint
- Any mould that needs treating
- The number of rooms or windows
- Access and height
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
Need a quote? Please phone 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and send you a clear quote before we start.
FAQs for Plaistow
Can parking be tricky for a visit in Plaistow?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you do sand mastic in Plaistow?
Yes, Plaistow is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
How do I get a quote for sand mastic in Plaistow?
Size, access and the old material all affect the cost. Call for a quick quote.
How long will you be here?
Most jobs take anything from a few hours to a full day, depending on how many windows. Your quote will say how long we expect yours to take.
Is the work guaranteed?
Our 12-month guarantee applies to all our work.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
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.
Work for landlords, hotels and businesses
If you manage several properties in or around Plaistow, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.