Greater London · England
Peaks Hill Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Peaks Hill and across Greater London. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps between timber frames and stone or brick
- Draughty sash windows at the surround
- Mastic that needs renewing before redecorating
Windows and doors in Peaks Hill
In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking. 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.
Peaks Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Schools such as Coloma Convent Girls' School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Peaks Hill is about 1 mile north-west of Purley, in Greater London. Whether you’re in the middle of Peaks Hill or further out, we cover sand mastic for every kind of property. Across Greater London, we cover 764 places, Peaks Hill among them. You can also see our page for London, roughly 11 miles from Peaks Hill.
Postcode districts we cover here for sand mastic: CR8 and SM6. Whether your property is on Furze Lane, Birch Lane and Plough Lane or a nearby road, we can help. With the A2022 close by, Peaks Hill is simple for us to get to for sand mastic. Nearby, we also carry out sand mastic in Russell Hill (1 mile north), Roundshaw (1 mile north), Woodcote (1 mile south-west), Purley (1 mile south-east) and Woodcote Green (1 mile west). Within a short drive, we also cover London (11 miles north), City of Westminster (12 miles north), Marylebone (12 miles north), Kensington (11 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
Local landmarks in Peaks Hill
Around Peaks Hill, our work takes us to homes and buildings near Carshalton Park, Margaret Roper Catholic Primary School and The Foxley Hatch pub. The nearest railway station is Purley station, roughly 0.8 miles south-east of the centre. Nearby you’ll also find St George's Walk (2.4 miles north-east) and Croydon Airport Visitor Centre (1 mile north-east). The countryside around Peaks Hill includes Duppas Hill and Roundshaw Downs.
Sand mastic for homes and businesses in Peaks Hill
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. If you’re dealing with gaps round a timber door in stone or brick and mastic worn away on windows facing the weather, we can put it right.
London has a lot of flats and conversions, where windows are often on upper floors. In a converted house or block, the lease normally says who is responsible for the windows, so it’s worth checking before booking, and access in Peaks Hill is something to talk through when you book.
Every job is covered by our one-year guarantee.

- Location
- Peaks Hill (CR8, SM6)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Peaks Hill
What else we do in Peaks Hill
How to look after the new joints
So the new joints stay in good condition:
- Keep modern sealant off the mastic
- Sort the mastic before the decorators arrive
- Find out about consent before window work on a listed home
- Ask a joiner to look at soft timber first
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Landlord and commercial work in Peaks Hill
If you manage several properties in or around Peaks Hill, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Quotes for sand mastic in Peaks Hill
Every job gets its own quote. These are the things that affect it:
- The product the joint needs
- Working hours on commercial sites
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
To help us quote quickly, please include:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- Roughly how big the job is
If you are in Peaks Hill and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
When it is not the sealant
It helps to know what we can’t do too:
- Decisions on consent for listed homes
- Damaged stone surrounds
- Sashes that need overhauling
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
What we do, step by step
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes 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 Peaks Hill. A visitor permit or a nearby bay makes the visit run more smoothly.
- 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.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
- Tell us if parking is tricky
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
What the job involves on each surface
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is generally favoured.
Common problems we fix in Peaks Hill
Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
These are the problems we’re asked about most:
- Mastic round period door frames that has failed
- Gaps where the frame meets the masonry
- A silicone bead on a sash window that spoils the look
- Window mastic to renew ahead of painting
If you let a flat or house near Purley station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- Whether they’re fully insured
- Who does the work, and how experienced they are
- Which colour the sealant will be
- What product goes in the joint
FAQs for Peaks Hill
Is parking an issue for sand mastic in Peaks Hill?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Is Peaks Hill in your area for sand mastic?
Yes, Peaks Hill is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we will advise.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
