Greater London · England
Elephant and Castle Sand Mastic
Specialist sand mastic for Elephant and Castle: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
What affects the cost of sand mastic
Call for a quick quote. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- The amount of work
- Whether the work is at height
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
When you contact us, it’s useful to know:
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- Where the job is, and your postcode
- The type of property
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details.
Sand mastic in Elephant and Castle, done properly
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. We work on tenement windows, period & listed homes and brick reveals, and people most often call us about old sand mastic that has cracked, crumbled or fallen out and gaps where the frame meets the masonry.
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.
We stand behind the work with a one-year guarantee.
- Where
- Elephant and Castle (SE1, SE17, SE11)
- Region
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Windows and doors in Elephant and Castle
Historic houses like Benjamin Franklin House (about 1.3 miles north-west) are a reminder that the area around Elephant and Castle 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 is traditional sand mastic. In a converted house or block, who looks after the windows depends on the lease, so check that before you book.
For site and facilities teams at buildings such as London College of Communication, the mastic around its windows and doors needs looking after like any other building’s. Elephant and Castle is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Elephant and Castle is about 1 mile south-west of London, in Greater London. Across the SE1 area, we cover sand mastic for homes and businesses. Across Greater London, we cover 764 places, and Elephant and Castle is one of them.
Here we cover the SE1, SE17 and SE11 postcode area for sand mastic. You’ll find streets such as Dante Road, Oakey Lane and Ash Avenue, and we cover them all. With the A300 and A302 close by, Elephant and Castle is easy for our applicators to reach. If you are just outside Elephant and Castle, we cover Newington Butts (1 mile south), St George's Fields (1 mile north-west), Vauxhall (1 mile west), Lambeth (1 mile west) and Kennington (1 mile south-west). Further out, we also cover City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles west), Walthamstow (7 miles north-east), Hoxton (3 miles north) and Hampstead (5 miles north-west).
Around Elephant and Castle
In Elephant and Castle, that means homes and buildings near The Rockingham Arms, Notre Dame Roman Catholic Girls' School and St Jude's Church of England Primary School and the streets around them. Other local landmarks include Newington Gardens (within half a mile north-east) and Lambeth Palace Library (0.8 miles west). Elephant and Castle has its own railway station: Elephant & Castle station. Nearby you will also find Newport Street Gallery (0.7 miles west) and Gabriel's Wharf (1 mile north). The countryside around Elephant and Castle includes Bellenden Road Nature Garden and St. James's Park Lake.
When it isn’t the sealant
We’ll always be straight with you, so here’s what sealant can’t fix:
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
- Decisions on consent for listed homes
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
What we seal
- Sash and case windows
- Tenement windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Stone surrounds
Why deal with it now?
Draughts round a sash window are not always the sashes. 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.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email and we will talk you through it.
What you get with us
- Quality sealants from Arbo and Everbuild
- Fully insured
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced or our reviews.
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Common problems we fix in Elephant and Castle
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
People generally contact us when they notice something like this:
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
- Wind and rain getting in round a sash window
- Tired mastic found when preparing windows for paint
In the older streets around Metropolitan Tabernacle, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before you book anyone
- What product goes in the joint
- Is the old sealant removed completely?
- What the cure time is
- What insurance they hold
Also near Elephant and Castle
Other services in Elephant and Castle
Surface by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Questions from Elephant and Castle
Do you cover Elephant and Castle for sand mastic?
Yes. Our work covers London and the South East, and Elephant and Castle is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Can parking be tricky for a visit in Elephant and Castle?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or drop us an email.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
How long does the job take?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you replace silicone on a period window with sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll advise.
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Elephant and Castle. 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.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Plan for the work area to be out of bounds to pets and children
Get a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before any work starts.