Greater London · England
Ruxley Sand Mastic
Sand mastic for Ruxley and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Draughty sash windows at the surround
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
When it isn’t the sealant
It helps to know what we cannot do too:
- Decayed frames that need repair
- Broken panes
- Planning or listed building consent (your local planning authority decides)
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Timber door frames
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows
- Sash and case windows
Sand mastic in Ruxley
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you’re redecorating. We work on brick reveals, tenement windows and period & listed homes, and common reasons people get in touch are mastic round period door frames that has failed and failed mastic on an exposed elevation.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Ruxley.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Ruxley (DA14)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.
How it 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 a few hours per window, depending on the condition of the joints from start to finish. In Ruxley, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We look at the surrounds with you and agree the joints to renew.
- 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.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Questions from Ruxley
Can you help a landlord with a rental near Albany Park station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover Ruxley for sand mastic?
Yes. We work across London and the South East, and Ruxley is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Is consent needed for window work on a listed home?
Check with your local planning authority. They decide whether consent is needed.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Windows and doors in Ruxley
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Hall Place and Gardens (about 2.6 miles north-east) nearby, there’s older building stock in the area around Ruxley as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For landlords with property near Albany Park station, older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near St Botolph's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Ruxley is about 2 miles south-east of Sidcup, in Greater London. If you need sand mastic in Ruxley, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Greater London. Our area takes in 764 places across Greater London. There’s also a page for London, about 11 miles away.
Every address in DA14 is within our area for sand mastic. Nearby, we also carry out sand mastic in Upper Ruxley (1 mile south-east), Foots Cray (1 mile west), Hockenden (1 mile south-east), North Cray (1 mile north) and Stonehill Green (1 mile east). Larger places within reach include London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), St Pancras (13 miles north-west), Shoreditch (12 miles north-west) and Walthamstow (14 miles north-west).
Near you in Ruxley
We work in homes and buildings around Kemnal Technology College, Foots Cray Meadows and Walsingham School. Ruxley’s nearest station is Albany Park station, roughly 1.5 miles north of the centre. Other landmarks nearby include Metropolitan Police Museum (1.8 miles north-west) and Eynsford Castle (4.6 miles south-east). Open spaces near Ruxley include The Warren and Summer Hill.
Landlord and commercial work in Ruxley
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Do you need sand mastic in Ruxley?
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
The most common problems we see are:
- Cement or filler used on old window joints that has cracked
- Window mastic to renew ahead of painting
- Mastic round period door frames that has failed
- Weathered mastic on the most exposed windows
Ruxley is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Before you book anyone
- Whether VAT is included
- How long to leave it before use
- Whether they seal over old material or remove it
- What guarantee comes with the work
Why it’s worth doing now in Ruxley
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Combining jobs into one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why us?
- Neat joints and a tidy finish
- Anti-fungal silicone where joints get wet
- A 12-month guarantee on all work
- Domestic, commercial and hotel work
Read how sealant jobs are priced and our reviews.
Nearby places to Ruxley
Other services in Ruxley
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Plan mastic work ahead of painting
- Make sure water runs off the sill
- Avoid patching sand mastic with silicone
- Avoid heavy scraping on the mastic joint
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.