Greater London · England
Sand mastic for sash & case windows in Redbridge, Greater London
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Redbridge, with a one-year guarantee on every job. Ask us for a quote.
- Mastic worn away on windows facing the weather
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
Sand mastic for homes and businesses in Redbridge
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it, so ask us before you decorate. We work on timber door frames, brick reveals and tenement windows, and people most often call us about open joints round the window box and mastic that needs renewing before redecorating.
Many London homes are flats, with windows high above the street. 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 Redbridge is something to talk through when you book.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.
- Where
- Redbridge (IG4, IG1, IG2)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Your questions about sand mastic in Redbridge
Can you do sand mastic in Redbridge?
Yes. We work across London and the South East, and Redbridge is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Ilford station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
What does sand mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
Should I use sand mastic or silicone?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for a single window, longer for several from start to finish. 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.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
Getting a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or send us an email.
Related advice
Why it’s worth doing now in Redbridge
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. In a flat in Redbridge, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why book with us
- A 12-month guarantee on all work
- Any old sealant cut out fully, not covered over
- Full insurance on every job
- An ARBOMaster approved applicator
Read our cost guide and customer reviews.
Honest limits
In fairness, there are a few things sealant will not fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
When to call us in Redbridge
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
If you can see any of these, it’s time to have the joints looked at:
- Draughty sash windows at the surround
- Old sand mastic that has cracked, crumbled or fallen out
- Patchy fillers round a sash window
- Cracked mastic round a front door frame
If you look after a building such as Redbridge Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- Which sealant they’ll use, and why
- Which colour the sealant will be
- Is the old sealant removed completely?
- Who turns up on the day
Redbridge homes and the weather
Historic houses like Valentines Mansion (about 0.7 miles south-east) are a reminder that the area around Redbridge has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.
If you let a flat or house near Ilford station, any sash windows need sound mastic to keep draughts and rain out. As a London address, Redbridge can be tricky for parking: let us know about parking bays, permits or a driveway.
Redbridge is about 2 miles north-east of Forest Gate, in Greater London. For sand mastic in and around Redbridge, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We’re based in Crawley and cover Greater London, Redbridge included. Across Greater London, we cover 764 places, and Redbridge is one of them. London is on our list too, around 8 miles away.
Here we cover the IG4, IG1 and IG2 postcode area for sand mastic. If you need sand mastic at a property on Fowey Avenue, Beehive Lane and Wycombe Road or anywhere close by, we can help. Other places close to Redbridge include Gants Hill (1 mile east), Cranbrook (1 mile south-east), Wanstead (1 mile west), Aldersbrook (1 mile south-west) and Newbury Park (1 mile east). Further out, we also cover London (8 miles south-west), City of Westminster (10 miles south-west), Marylebone (9 miles south-west), Kensington (12 miles south-west), St Pancras (8 miles south-west) and Shoreditch (7 miles south-west).
Local landmarks in Redbridge
Around Redbridge, our work takes us to homes and buildings near Valentines High School and Valentines Park. Redbridge’s nearest station is Ilford station, roughly 1.4 miles south-east of the centre. Other landmarks nearby include Wanstead Hospital (1.2 miles north-west) and Redbridge Museum (1.6 miles south-east). The countryside around Redbridge includes Pole Hill and Hollow Pond.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Check with your local planning authority if your home is listed
- Look over the window mastic once a year
- Don’t paint over the new mastic
- Avoid heavy scraping on the mastic joint
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Places near Redbridge
More services for Redbridge
Landlords, agents and businesses in Redbridge
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.