Greater London · England
Sand mastic for sash & case windows in Maypole, Greater London
Professional sand mastic in and around Maypole, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Mastic dropping out of the joint
Sand mastic in Maypole
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on sash and case windows, timber door frames and brick reveals, and the jobs we see most are silicone on a period window that looks wrong and draughty sash windows at the surround.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease usually says who is responsible for the windows, so it’s worth checking before booking, and access in Maypole is something to talk through when you book.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Maypole (BR6)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes a few hours per window, depending on the condition of the joints. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Maypole. It helps if you can point us to a visitor permit or a bay close to the door.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
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Frames and glazing around Maypole
With historic houses such as Lullingstone Castle (about 2.4 miles east) nearby, there’s older building stock in the area around Maypole 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. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.
If you look after a building such as Chelsfield Primary School, its window and door frames need their mastic kept sound, just like a home’s. As a London address, Maypole can be tricky for parking: let us know about parking bays, permits or a driveway.
Maypole is about 3 miles south-east of Orpington, in Greater London. For sand mastic in and around Maypole, 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, Maypole included. Our Greater London coverage runs to 764 places, and Maypole is one of them. You can also see our page for London, about 14 miles away.
Postcode districts we cover here for sand mastic: BR6. If you need sand mastic at a property on Jubilee Road, Hollybush Lane and Maypole Road or anywhere close by, our applicators can take on the job. If you’re just outside Maypole, we cover Bopeep (1 mile south), Well Hill (1 mile east), Chelsfield (1 mile north-west), Badgers Mount (1 mile south) and Goddington (1 mile north-west). Within a short drive, we also cover London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (14 miles north-west), Orpington (3 miles north-west) and Plaistow (13 miles north-west).
Around Maypole
We work in homes and buildings around Harris Academy Orpington, Hewitt's Chalk Bank and The Bo-Peep pub. Maypole’s nearest station is Knockholt station, about 0.7 miles south-west. A little further out are Lullingstone Castle (2.4 miles east) and Orpington Hospital (2 miles west). Green spaces nearby include The Warren and Summer Hill.
FAQs for Maypole
Can you do sand mastic in Maypole?
Yes. Our work covers London and the South East, and Maypole is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can parking be tricky for a visit in Maypole?
Parking in Maypole, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll talk you through it.
Is sand mastic better than silicone for my windows?
It depends on the window. Period windows in stone or brick usually suit sand mastic, while modern frames normally get a flexible sealant.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We will tell you what to expect for your job.
Landlords, agents and businesses in Maypole
Letting agents and landlords in Maypole can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
For anyone letting property in or around Maypole, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Check with your local planning authority if your home is listed
- Check the mastic when you check the paintwork
- Take care around the mastic when scraping paint
- Keep sills and gutters clear so water drains away
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
When something else is needed
Before you book, it’s worth knowing the limits too:
- Planning or listed building consent (your local planning authority decides)
- Timber that has rotted
- Damaged stone surrounds
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Brick reveals
Places near Maypole
What else we do in Maypole
Leave it or put it right?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals 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.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why us?
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Sanitary silicone with an anti-fungal additive in wet areas
- Domestic, commercial and hotel work
See how sealant jobs are priced and our reviews.
How the job changes by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Signs you need sand mastic in Maypole
Rain on the window surround works into any crack and pushes it out. Exposed elevations generally fail first.
These are the problems we’re asked about most:
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Tired mastic found when preparing windows for paint
- Modern sealant on a period surround
For landlords with property near Knockholt station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- How the joint is cleaned and prepared
- What product goes in the joint
- How the colour is chosen
- When the joint can take water or movement