Greater London · England
Sand Mastic in Little Woodcote
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Little Woodcote. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps round a timber door in stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
What affects the cost of sand mastic
Your quote is based on your job. We look at:
- Any working-time requirements on site
- The product the joint needs
- How easy the joints are to reach
- The amount of work
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
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
Sand mastic for homes and businesses in Little Woodcote
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we will advise if you’re redecorating. We are often asked to deal with old cement repairs round a window that have failed and mastic worn away on windows facing the weather, across tenement windows, period & listed homes and brick reveals.
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, letting in draughts and water.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Little Woodcote (SM5, CR8, SM6)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours per window, depending on the condition of the joints, including the tidy-up. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Clear items away from the joints we are working on
- Tell us if parking is tricky
- Mention any tricky access
How to get a quote
For a quote, call 0345 464 0079 or drop 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.
Advice
When it is not the sealant
A few problems are outside what sealant work can do:
- Cracked or broken glass
- Sashes that need overhauling
- Timber that has rotted
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Stone surrounds
- Sash and case windows
- Timber door frames
- Period & listed homes
- Brick reveals
- Tenement windows
Towns and villages near Little Woodcote
Other services in Little Woodcote
Common problems we fix in Little Woodcote
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
It’s worth asking for a quote if you see:
- A silicone bead on a sash window that spoils the look
- Mastic worn away on windows facing the weather
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
Little Woodcote is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Comparing quotes
- Who does the work, and how experienced they are
- How the joint is cleaned and prepared
- Whether they’re fully insured
- Whether the sealant suits the joint
What the job involves on each surface
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Questions from Little Woodcote
Can you do sand mastic in Little Woodcote?
Yes, Little Woodcote is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
I let a flat near Woodmansterne station. Can you help?
Yes. We work for landlords and agents as well as homeowners. You can call 0345 464 0079 or email us with the details for a clear quote.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we are using and why.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
What happens if it’s left?
Silicone might seem the quicker option, 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.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
Why choose Mr Mastic in Little Woodcote
- 12-month guarantee on every job
- We never seal over old sealant
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
Take a look at our cost guide or customer reviews.
What sand mastic looks like in Little Woodcote
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. Historic houses like Nonsuch Mansion (about 3.3 miles north-west) are a reminder that the area around Little Woodcote has older buildings as well as new. 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.
If you live in an older home near St. Patrick's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Woodmansterne station? Then any sash windows need sound mastic to keep draughts and rain out.
Little Woodcote is about 2 miles west of Purley, in Greater London. Homes, rented property, offices and hotels in Little Woodcote can book us for sand mastic. Every job comes with our 12-month guarantee. We cover 764 towns and villages across Greater London, from the larger towns to small villages. There’s also a page for London, about 11 miles away.
Every address in SM5, CR8 and SM6 is within our area for sand mastic. If you need sand mastic at a property on Woodmansterne Lane, Little Woodcote Lane and Oaks Track or anywhere close by, our applicators can take on the job. If you’re just outside Little Woodcote, we cover Woodcote Green (1 mile east), Woodcote (1 mile east), Peaks Hill (1 mile east), Roundshaw (2 miles north-east) and Woodmansterne (2 miles south). We also work in nearby towns such as 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).
Landmarks near Little Woodcote
Typical jobs here are in homes near Wallington High School for Girls, Laleham Lea School and Carshalton Park, among other places. The closest station to Little Woodcote is Woodmansterne station, roughly 1.3 miles south of the centre. Other landmarks nearby include Centrale Croydon (3.6 miles north-east) and Queen Mary's Hospital For Children (0.9 miles north-west). Open spaces near Little Woodcote include Roundshaw Downs and Duppas Hill.