Greater London · England
Sand Mastic in Broadwater Farm
Professional sand mastic in and around Broadwater Farm, with old sealant always removed completely.
- Gaps between timber frames and stone or brick
- Mastic that needs renewing before redecorating
- Mastic dropping out of the joint
Broadwater Farm: your questions answered
Can you help a landlord with a rental near Bruce Grove station?
Yes. We work for landlords and letting agents as well as homeowners. Just phone 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 Broadwater Farm?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can you do several jobs on one visit?
Yes. More than one area can be quoted together.
Can old silicone round a sash window be swapped for sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or email us.
Sand mastic for homes and businesses in Broadwater Farm
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. Typical jobs include gaps between timber frames and stone or brick and silicone on a period window that looks wrong, on sash and case windows, tenement windows and brick reveals.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Broadwater Farm (N17, N15, N22)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Broadwater Farm
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Broadwater Farm, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
How we quote for sand mastic
Jobs vary more than people expect. What affects the quote:
- The number of rooms or windows
- Any mould that needs treating
- Which sealant suits the joint
- Whether old sealant or filler has to be cut out
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What to tell us for a quote
To help us quote quickly, let us know:
- Whether it has been sealed before
- Pictures of the joints, sent by email
- The address or postcode of the job
- How many joints, rooms or windows are involved
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Why act early in Broadwater Farm
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Broadwater Farm, the repair is bigger than a sealant job.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why us?
- We’re fully insured
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- Homes, businesses and hotels
Take a look at our cost guide or our reviews.
How the visit works
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes a few hours per window, depending on the condition of the joints. In Broadwater Farm, 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.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
How to get a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Read more
What sand mastic looks like in Broadwater Farm
Historic houses like Bruce Castle (about 0.4 miles north-east) are a reminder that the area around Broadwater Farm has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Bruce Grove station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as The Willow Primary School, its window and door frames need their mastic kept sound, just like a home’s. Broadwater Farm is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Broadwater Farm is about 2 miles south-west of Edmonton, in Greater London. Broadwater Farm gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Greater London, we cover 764 places, Broadwater Farm among them. There’s also a page for London, roughly 7 miles from Broadwater Farm.
We cover every part of the N17, N15 and N22 postcode area for sand mastic and the streets around it. Local streets include High Road, Ripon Road and Clyde Road. With the A10 close by, Broadwater Farm is simple for us to get to for sand mastic. Close by, we work in Tottenham (1 mile east), West Green (1 mile south-west), Tottenham Green (1 mile south-east), Duckett's Green (1 mile south-west) and South Tottenham (1 mile south-east). We also work in nearby towns such as London (7 miles south), City of Westminster (6 miles south-west), Marylebone (6 miles south-west), Kensington (8 miles south-west), St Pancras (5 miles south) and Shoreditch (5 miles south).
Around Broadwater Farm
Locally, jobs take us to homes and businesses close to Park View School, Bruce Castle Park and Bruce Castle School, among other places. For rail, the closest station is Bruce Grove station, roughly 0.5 miles east of the centre. Nearby you will also find Markfield Beam Engine and Museum (1.2 miles south-east) and North Middlesex University Hospital (1.3 miles north). Green spaces nearby include Railway Fields and Hollow Pond.
How to look after the new joints
So the new joints stay in good condition:
- Go gently near the mastic when preparing windows
- Keep modern sealant off the mastic
- Keep sills and gutters clear so water drains away
- Ask us before painting near the mastic
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
What we can’t put right
A few problems are outside what sealant work can do:
- Putty and glazing repairs
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Joints and surfaces we work on
- Sash and case windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Period & listed homes
- Tenement windows
How the job changes by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.